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Mokotjomela TM, Nelufule T, Scott Z, Vukeya LR, Xivuri T, Matsokane K, Mweli N, Magqabi FL, Jaca T. The invasion threat of the emerging alien cactus Cylindropuntia pallida (Rosa), F.M. Knuth in South Africa and the potential for control using herbicides. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:673. [PMID: 38940993 PMCID: PMC11213732 DOI: 10.1007/s10661-024-12821-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 06/11/2024] [Indexed: 06/29/2024]
Abstract
The emerging alien cactus Cylindropuntia pallida (Rose) F.M. Knuth originates from northern Mexico and introduced into South Africa in 1940s as an ornamental plant. Multiple populations of C. pallida have been detected in various areas of South Africa. C. pallida has effective propagule dispersal and rapid recruitment making it a likely key future invader, and thus, is a target for eradication in South Africa. To eradicate C. pallida populations, a foliar spray (i.e. using a 2% concentration of herbicide with fluroxypyr and triclopyr) has been applied to plants in nine populations, with population sizes ranging between 535 and 2701 plants and populations covering areas of 100 -1000 ha. The aims of the study were to investigate the efficacy of the foliar spray method used to eradicate C. pallida; to investigate the impacts of C. pallida invasions on native vegetation integrity; to apply species distribution models (SDMs) to identify suitable climates for C. pallida in South Africa; and to document the biomes vulnerable to the negative impact of C. pallida in South Africa. Results show that foliar spray killed many C. pallida plants (mean percentage of dead plants ± SE, 83.3 ± 6.4; n = 9; range, 70-96%), with adult plants taking about 2 months to die completely. The efficacy of the herbicide was not affected by plant size or the concentration of the herbicide used. The invaded site had significantly greater vegetation cover which persisted across winter compared to the uninvaded site, but the latter site's vegetation cover significantly dropped in winter. Also, the invaded site had lower plant species diversity than the uninvaded site and was dominated by species in the Poaceae and Asteraceae plant families. Additionally, a normalised difference vegetation index (NDVI) analysis shows that the uninvaded site has higher vegetation cover and health than the invaded site wherein a notable decline in vegetation health was observed between 2019 and 2022. A large area (> 15 million hectares) was predicted to be suitable for invasion by C. pallida in provinces with arid and warm temperate climates - the fynbos and grassland biomes are the most vulnerable. Because of the observed negative impacts, high environmental compatibility, and high cost of clearing large infestations, we advocate for considering the biocontrol method for effectively managing C. pallida invasion in South Africa.
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Affiliation(s)
- Thabiso Michael Mokotjomela
- Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, 3200, South Africa.
| | - Takalani Nelufule
- South Africa National Biodiversity Institute , Free State National Botanical Garden, Rayton, Dan Pienaar, Bloemfontein, 9310, South Africa
- Afromontane Research Unit, University of Free State, Phuthaditjhaba, 9866, Qwaqwa Campus, South Africa
| | - Zimbini Scott
- South Africa National Biodiversity Institute , Free State National Botanical Garden, Rayton, Dan Pienaar, Bloemfontein, 9310, South Africa
| | - Loyd Rodney Vukeya
- Free State National Botanical Garden, Rayton, Dan Pienaar, P.O Box 29036, Bloemfontein, 9310, Free State, South Africa
| | - Travor Xivuri
- Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, 3200, South Africa
| | - King Matsokane
- Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, 3200, South Africa
| | - Nobuhle Mweli
- Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, 3200, South Africa
| | - Felicia Lerato Magqabi
- Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, 3200, South Africa
| | - Thulisile Jaca
- Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, 3200, South Africa
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Nelufule T, Shivambu TC, Shivambu N, Moshobane MC, Seoraj-Pillai N, Nangammbi T. Assessing Alien Plant Invasions in Urban Environments: A Case Study of Tshwane University of Technology and Implications for Biodiversity Conservation. PLANTS (BASEL, SWITZERLAND) 2024; 13:872. [PMID: 38592858 PMCID: PMC10975853 DOI: 10.3390/plants13060872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 04/11/2024]
Abstract
Preserving the dwindling native biodiversity in urban settings poses escalating challenges due to the confinement of remaining natural areas to isolated and diminutive patches. Remarkably scarce research has scrutinised the involvement of institutions, particularly universities, in introducing alien plant species in South Africa, thus creating a significant gap in effective monitoring and management. In this study, the Tshwane University of Technology in Tshwane Metropole, South Africa serves as a focal point, where we conducted a comprehensive survey of alien plants both within the university premises and beyond its confines. The investigation involved the classification of invasion status and a meticulous assessment of donor and recipient dynamics. Our findings encompass 876 occurrence records, revealing the presence of 94 alien plant species spanning 44 distinct families. Noteworthy occurrences among the dominant plant families are Asteraceae and Solanaceae. Herbaceous and woody plants emerged as the most prevalent alien species, with common representation across both sampling sites. A substantial majority of recorded species were initially introduced for horticultural purposes (51%) before escaping and establishing self-sustaining populations (62%). Furthermore, 43 species identified are listed in South African invasive species legislation, with some manifesting invasive tendencies and altering the distribution of native species in the remaining natural areas. The notable overlap in species observed between the university premises and adjacent areas provides crucial insights into the influence of institutions on the dynamics of plant invasions within the urban landscape. This underscores the prevailing gaps in the management of invasive alien plants in urban zones and accentuates the imperative of an integrated approach involving collaboration between municipalities and diverse institutions for effective invasive species management in urban environments.
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Affiliation(s)
- Takalani Nelufule
- Department of Nature Conservation, Tshwane University of Technology, Private Bag X680, Pretoria West 0001, South Africa
| | - Tinyiko C. Shivambu
- Department of Nature Conservation, Tshwane University of Technology, Private Bag X680, Pretoria West 0001, South Africa
| | - Ndivhuwo Shivambu
- Department of Nature Conservation, Tshwane University of Technology, Private Bag X680, Pretoria West 0001, South Africa
| | - Moleseng C. Moshobane
- South African National Biodiversity Institute, Pretoria National Botanical Garden, 2 Cussonia Avenue, Brummeria, Silverton 0184, South Africa;
| | - Nimmi Seoraj-Pillai
- Department of Nature Conservation, Tshwane University of Technology, Private Bag X680, Pretoria West 0001, South Africa
| | - Tshifhiwa Nangammbi
- Department of Nature Conservation, Tshwane University of Technology, Private Bag X680, Pretoria West 0001, South Africa
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Gulzar R, Hamid M, Hassan T, Rashid I, Khuroo AA. Different sets of traits determine transition of alien species along the invasion continuum. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169137. [PMID: 38070553 DOI: 10.1016/j.scitotenv.2023.169137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/17/2023]
Abstract
Invasive alien species are currently considered as one of the dominant drivers of global environmental change. Till now, the majority of studies have focused on single or a few traits of alien species that facilitate their invasion. Also inclusion of all the traits which determine the transition of aliens along the different stages of invasion continuum (casual, naturalised and invasive) has remained largely overlooked. In this study, we collected a comprehensive trait dataset on 144 alien plant species of Kashmir Himalaya - a global biodiversity hotspot region. To test which traits of alien species, individually or in combination along with anthropogenic factors, determine their transition along the invasion continuum, we employed chi-square tests, boosted regression trees and phylogenetic methods. We found the perennial life span, longer residence time, greater number of introduced regions, and better seed dispersal mechanism were critical in determining the transition from casual to naturalised. The herbaceous growth form, therophyte Raunkiaer life-form, annual life span, achene fruit, longer residence time and broader introduced range were the species' traits determining transition from naturalised to invasive. Aliens introduced as ornamentals have more propensity to become naturalised; whereas aliens introduced unintentionally show overrepresentation at the invasive stage. Phylogeny alone showed mixed results indicating both clustering and dispersion; however, in combination with other traits, it plays a significant role in determining the stage of invasion. Overall, our study disentangles the individual and interactive roles of multiple traits that determine the transition of alien species' along the invasion continuum. Further, we foresee the potential applicability of our findings in designing robust invasion risk analysis protocols and stage-specific invasion management strategies in this Himalayan region, with learnings for elsewhere in the world.
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Affiliation(s)
- Ruquia Gulzar
- Centre for Biodiversity and Taxonomy, Department of Botany, University of Kashmir, Srinagar 190 006, Jammu and Kashmir, India
| | - Maroof Hamid
- Centre for Biodiversity and Taxonomy, Department of Botany, University of Kashmir, Srinagar 190 006, Jammu and Kashmir, India
| | - Tabasum Hassan
- Centre for Biodiversity and Taxonomy, Department of Botany, University of Kashmir, Srinagar 190 006, Jammu and Kashmir, India
| | - Irfan Rashid
- Department of Geoinformatics, University of Kashmir, Srinagar 190 006, Jammu and Kashmir, India
| | - Anzar Ahmad Khuroo
- Centre for Biodiversity and Taxonomy, Department of Botany, University of Kashmir, Srinagar 190 006, Jammu and Kashmir, India.
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Borgelt J, Dorber M, Géron C, Kuipers KJJ, Huijbregts MAJ, Verones F. What Is the Impact of Accidentally Transporting Terrestrial Alien Species? A New Life Cycle Impact Assessment Model. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024. [PMID: 38332475 PMCID: PMC10882960 DOI: 10.1021/acs.est.3c08500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Alien species form one of the main threats to global biodiversity. Although Life Cycle Assessment attempts to holistically assess environmental impacts of products and services across value chains, ecological impacts of the introduction of alien species are so far not assessed in Life Cycle Impact Assessment. Here, we developed country-to-country-specific characterization factors, expressed as the time-integrated potentially disappeared fraction (PDF; regional and global) of native terrestrial species due to alien species introductions per unit of goods transported [kg] between two countries. The characterization factors were generated by analyzing global data on first records of alien species, native species distributions, and their threat status, as well as bilateral trade partnerships from 1870-2019. The resulting characterization factors vary over several orders of magnitude, indicating that impact greatly varies per transportation route and trading partner. We showcase the applicability and relevance of the characterization factors for transporting 1 metric ton of freight to France from China, South Africa, and Madagascar. The results suggest that the introduction of alien species can be more damaging for terrestrial biodiversity as climate change impacts during the international transport of commodities.
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Affiliation(s)
- Jan Borgelt
- Industrial Ecology Programme, Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Trondheim 7034, Norway
| | - Martin Dorber
- Industrial Ecology Programme, Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Trondheim 7034, Norway
| | - Charly Géron
- Biodiversity and Landscape, TERRA research centre, Gembloux Agro-Bio Tech, University of Liège, Gembloux 5030, Belgium
- Plants and Ecosystems, University of Antwerp, Wilrijk 2610, Belgium
- . CNRS, ECOBIO (Écosystèmes, Biodiversité, Évolution), UMR, University of Rennes, Rennes 6553, France
| | - Koen J J Kuipers
- Department of Environmental Science, Radboud Institute for Biological and Environmental Sciences, Radboud University, Nijmegen, GL 6500, Netherlands
| | - Mark A J Huijbregts
- Department of Environmental Science, Radboud Institute for Biological and Environmental Sciences, Radboud University, Nijmegen, GL 6500, Netherlands
| | - Francesca Verones
- Industrial Ecology Programme, Department of Energy and Process Engineering, Norwegian University of Science and Technology (NTNU), Trondheim 7034, Norway
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Kumschick S, Fernandez Winzer L, McCulloch-Jones EJ, Chetty D, Fried J, Govender T, Potgieter LJ, Rapetsoa MC, Richardson DM, van Velden J, Van der Colff D, Miza S, Wilson JRU. Considerations for developing and implementing a safe list for alien taxa. Bioscience 2024; 74:97-108. [PMID: 38390311 PMCID: PMC10880065 DOI: 10.1093/biosci/biad118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/30/2023] [Accepted: 12/07/2023] [Indexed: 02/24/2024] Open
Abstract
Many species have been intentionally introduced to new regions for their benefits. Some of these alien species cause damage, others do not (or at least have not yet). There are several approaches to address this problem: prohibit taxa that will cause damage, try to limit damages while preserving benefits, or promote taxa that are safe. In the present article, we unpack the safe list approach, which we define as "a list of taxa alien to the region of interest that are considered of sufficiently low risk of invasion and impact that the taxa can be widely used without concerns of negative impacts." We discuss the potential use of safe lists in the management of biological invasions; disentangle aspects related to the purpose, development, implementation, and impact of safe lists; and provide guidance for those considering to develop and implement such lists.
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Affiliation(s)
- Sabrina Kumschick
- Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University, Stellenbosch, South Africa
- South African National Biodiversity Institute, Kirstenbosch Research Centre, Cape Town, South Africa
| | - Laura Fernandez Winzer
- Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University, Stellenbosch, South Africa
- South African National Biodiversity Institute, Kirstenbosch Research Centre, Cape Town, South Africa
| | - Emily J McCulloch-Jones
- Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University, Stellenbosch, South Africa
- South African National Biodiversity Institute, Kirstenbosch Research Centre, Cape Town, South Africa
| | - Duran Chetty
- South African National Biodiversity Institute, Kirstenbosch Research Centre, Cape Town, South Africa
- Department of Horticultural Sciences at Cape Peninsula University of Technology, Cape Town, South Africa
| | - Jana Fried
- Centre for Agroecology, Water, and Resilience at Coventry University, Coventry, England, United Kingdom
| | - Tanushri Govender
- Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University, Stellenbosch, South Africa
- South African National Biodiversity Institute, Kirstenbosch Research Centre, Cape Town, South Africa
| | - Luke J Potgieter
- Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University
- Department of Biological Sciences at the University of Toronto-Scarborough, Toronto, Ontario, Canada
| | - Mokgatla C Rapetsoa
- South African National Biodiversity Institute, Kirstenbosch Research Centre, Cape Town, South Africa
- Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University
- Centre for Invasion Biology in the Department of Environmental Sciences, Faculty of Science at Rhodes University, Makhanda, South Africa
| | - David M Richardson
- Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University
- Institute of Botany at the Czech Academy of Sciences, Průhonice, Czech Republic
| | - Julia van Velden
- Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University
- Centre for Sustainability Transitions at Stellenbosch University, Stellenbosch, South Africa
| | - Dewidine Van der Colff
- Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University, Stellenbosch, South Africa
- South African National Biodiversity Institute, Kirstenbosch Research Centre, Cape Town, South Africa
| | - Siyasanga Miza
- South African National Biodiversity Institute, Kirstenbosch Research Centre, Cape Town, South Africa
| | - John R U Wilson
- Centre for Invasion Biology in the Department of Botany and Zoology at Stellenbosch University, Stellenbosch, South Africa
- South African National Biodiversity Institute, Kirstenbosch Research Centre, Cape Town, South Africa
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6
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Sennikov AN, Lazkov GA. Alien Plants of Kyrgyzstan: The First Complete Inventory, Distributions and Main Patterns. PLANTS (BASEL, SWITZERLAND) 2024; 13:286. [PMID: 38256839 PMCID: PMC10821502 DOI: 10.3390/plants13020286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024]
Abstract
The first inventory of casual and naturalised alien plants of Kyrgyzstan is based on an overview of published data, which were re-assessed and re-evaluated using modern standards. Altogether, 151 alien species were registered in the country, of which nearly 40% became naturalised. The total number of alien plant species and the proportion of casual aliens are relatively low due to the harsh climatic conditions (high aridity and continentality) and predominantly high elevations. The highest number of alien plant species in Kyrgyzstan originated from the Mediterranean, which can be explained by some common climatic features between this area and Central Asia, but half of the ten most harmful aliens originated from the Americas. The intensity of plant invasions was the greatest during the period of the Russian Empire and the USSR, and this rapid accumulation of alien plants continues in independent Kyrgyzstan. The uneven distribution of alien plants in Kyrgyzstan is explained by different elevations and climatic conditions across its regions, as well as by the concentration of agricultural activities and human population along warm lowland depressions. More research is required to uncover pathways and particular times of introduction and to produce detailed distribution maps.
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Affiliation(s)
- Alexander N. Sennikov
- Botanical Museum, Finnish Museum of Natural History, University of Helsinki, 00014 Helsinki, Finland
| | - Georgy A. Lazkov
- Institute of Biology, Academy of Sciences of Kyrgyzstan, Bishkek 720010, Kyrgyzstan;
- Research Centre for Ecology and Environment of Central Asia, Bishkek 720040, Kyrgyzstan
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Dong R, Dong BC, Fu QY, Yang Q, Dai ZC, Luo FL, Gao JQ, Yu FH, van Kleunen M. Cultivated alien plants with high invasion potential are more likely to be traded online in China. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2024; 34:e2811. [PMID: 36708137 DOI: 10.1002/eap.2811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/09/2022] [Accepted: 12/14/2022] [Indexed: 06/18/2023]
Abstract
Biological invasions have become a worldwide problem, and measures to efficiently prevent and control invasions are still in development. Like many other parts of the world, China is undergoing a dramatic increase in plant invasions. Most of the currently 933 established (i.e., naturalized) plant species, of which 214 are categorized as invasive, have been introduced into China for cultivation. It is likely that many of those species are still being traded, particularly online, by plant nurseries. However, studies assessing whether naturalized and invasive species are currently being traded more or less than nonnaturalized aliens are rare. We extracted online-trade information for 13,718 cultivated alien plant taxa on 1688.com, the largest website for domestic B2B in China. We analyzed how the presence in online-nursery catalogs, the number of online nurseries that offerred the species for sale, and the product type (i.e., seeds, live plants and vegetative organs) differed among nonnaturalized, naturalized noninvasive, and invasive species. Compared to nonnaturalized taxa, naturalized noninvasive and invasive taxa were 3.7-5.2 times more likely to be available for purchase. Naturalized noninvasive and invasive taxa were more frequently offered as seeds by online nurseries, whereas nonnaturalized taxa were more frequently offered as live plants. Based on these findings, we propose that, to reduce the further spread of invasive and potentially invasive plants, implementation of plant-trade regulations and a monitoring system of the online horticultural supply chain will be essential.
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Affiliation(s)
- Ran Dong
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
| | - Bi-Cheng Dong
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, Beijing Forestry University, Beijing, China
| | - Qiu-Yue Fu
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
| | - Qiang Yang
- Ecology, Department of Biology, University of Konstanz, Konstanz, Germany
| | - Zhi-Cong Dai
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Fang-Li Luo
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, Beijing Forestry University, Beijing, China
| | - Jun-Qin Gao
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, Beijing Forestry University, Beijing, China
| | - Fei-Hai Yu
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, China
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, China
| | - Mark van Kleunen
- Ecology, Department of Biology, University of Konstanz, Konstanz, Germany
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, China
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Lau JA, Funk JL. How ecological and evolutionary theory expanded the 'ideal weed' concept. Oecologia 2023; 203:251-266. [PMID: 37340279 PMCID: PMC10684629 DOI: 10.1007/s00442-023-05397-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/29/2023] [Indexed: 06/22/2023]
Abstract
Since Baker's attempt to characterize the 'ideal weed' over 50 years ago, ecologists have sought to identify features of species that predict invasiveness. Several of Baker's 'ideal weed' traits are well studied, and we now understand that many traits can facilitate different components of the invasion process, such as dispersal traits promoting transport or selfing enabling establishment. However, the effects of traits on invasion are context dependent. The traits promoting invasion in one community or at one invasion stage may inhibit invasion of other communities or success at other invasion stages, and the benefits of any given trait may depend on the other traits possessed by the species. Furthermore, variation in traits among populations or species is the result of evolution. Accordingly, evolution both prior to and after invasion may determine invasion outcomes. Here, we review how our understanding of the ecology and evolution of traits in invasive plants has developed since Baker's original efforts, resulting from empirical studies and the emergence of new frameworks and ideas such as community assembly theory, functional ecology, and rapid adaptation. Looking forward, we consider how trait-based approaches might inform our understanding of less-explored aspects of invasion biology ranging from invasive species responses to climate change to coevolution of invaded communities.
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Affiliation(s)
- Jennifer A Lau
- Department of Biology and the Environmental Resilience Institute, Indiana University, Bloomington, IN, 47405, USA
| | - Jennifer L Funk
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA.
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Hu S, Jin C, Liao R, Huang L, Zhou L, Long Y, Luo M, Jim CY, Hu W, Lin D, Chen S, Liu C, Jiang Y, Yang Y. Herbaceous ornamental plants with conspicuous aesthetic traits contribute to plant invasion risk in subtropical urban parks. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 347:119059. [PMID: 37769469 DOI: 10.1016/j.jenvman.2023.119059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 09/17/2023] [Accepted: 09/19/2023] [Indexed: 09/30/2023]
Abstract
Global ornamental horticulture is a major pathway for plant invasions, while urban parks are key areas for introducing non-native ornamental plants. To react appropriately to the challenges (e.g., biological invasion issues) and opportunities (e.g., urban ecosystem services) of herbaceous ornamentals in urban parks, we conducted a comprehensive invasive risk assessment in 363 urban parks in Chongqing, a subtropical city in China. The results found more than 1/3 of the 119 non-native species recorded in urban parks had a high invasion risk, and more than five species had potential invasion risk in 96.29% of the study area, indicating herbaceous ornamentals in urban parks are potentially a pool of invasive species that deserves attention. Moreover, humans have chosen herbaceous ornamentals with more aesthetic characteristics in urban parks, where exotic species were more prominent than native species in floral traits, such as more conspicuous flowers and longer flowering periods. The findings can inform urban plant management, provide an integrated approach to assessing herbaceous ornamentals' invasion risk, and offer insights into understanding the filtering effects of human aesthetic preferences.
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Affiliation(s)
- Siwei Hu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China.
| | - Cheng Jin
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China.
| | - Ruiyan Liao
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China.
| | - Li Huang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China; Institute of Ecology, College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes, Peking University, Beijing, 100871, China.
| | - Lihua Zhou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China.
| | - Yuxiao Long
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China.
| | - Min Luo
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China.
| | - C Y Jim
- Department of Social Sciences, The Education University of Hong Kong, Lo Ping Road, Tai Po, Hong Kong Special Administrative Region, China.
| | - Wenhao Hu
- College of Landscape Architecture, Zhejiang A&F University, Hangzhou, 311300, China.
| | - Dunmei Lin
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China.
| | - Shengbin Chen
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610041, China.
| | - Changjing Liu
- College of Criminal Science and Technology, Nanjing Police University, Nanjing, 210023, China.
| | - Yanxue Jiang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China.
| | - Yongchuan Yang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China; Joint International Research Laboratory of Green Building and Built Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China.
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10
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Häkkinen H, Hodgson D, Early R. Global terrestrial invasions: Where naturalised birds, mammals, and plants might spread next and what affects this process. PLoS Biol 2023; 21:e3002361. [PMID: 37963110 PMCID: PMC10645288 DOI: 10.1371/journal.pbio.3002361] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 10/04/2023] [Indexed: 11/16/2023] Open
Abstract
More species live outside their native range than at any point in human history. Yet, there is little understanding of the geographic regions that will be threatened if these species continue to spread, nor of whether they will spread. We predict the world's terrestrial regions to which 833 naturalised plants, birds, and mammals are most imminently likely to spread, and investigate what factors have hastened or slowed their spread to date. There is huge potential for further spread of naturalised birds in North America, mammals in Eastern Europe, and plants in North America, Eastern Europe, and Australia. Introduction history, dispersal, and the spatial distribution of suitable areas are more important predictors of species spread than traits corresponding to habitat usage or biotic interactions. Natural dispersal has driven spread in birds more than in plants. Whether these taxa continue to spread more widely depends partially on connectivity of suitable environments. Plants show the clearest invasion lag, and the putative importance of human transportation indicates opportunities to slow their spread. Despite strong predictive effects, questions remain, particularly why so many birds in North America do not occupy climatically suitable areas close to their existing ranges.
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Affiliation(s)
- Henry Häkkinen
- Centre for Ecology and Conservation, Faculty of Environment, Science and Economy, University of Exeter, Penryn, United Kingdom
| | - Dave Hodgson
- Centre for Ecology and Conservation, Faculty of Environment, Science and Economy, University of Exeter, Penryn, United Kingdom
| | - Regan Early
- Centre for Ecology and Conservation, Faculty of Environment, Science and Economy, University of Exeter, Penryn, United Kingdom
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11
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Jakubcsiková M, Demková L, Renčo M, Čerevková A. Evaluation of the Effect of Organic Matter from Invasive Plants on Soil Nematode Communities. PLANTS (BASEL, SWITZERLAND) 2023; 12:3459. [PMID: 37836199 PMCID: PMC10575270 DOI: 10.3390/plants12193459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023]
Abstract
Invasive plants can cause loss of biodiversity and degradation of ecosystems with varying degrees of impact on soil communities. Little is known about how the organic matter of these invaders in the soil affects soil properties and nematode communities. We performed a pot experiment with non-invaded grassland soil and organic matter from two invasive plants, Fallopia japonica and Solidago gigantea, to assess and compare the composition and function of the nematode communities and soil properties. We tested five treatments: (1) non-invaded grassland soil (S), (2) 100% decayed organic matter from F. japonica (OMF), (3) 100% decayed organic matter from S. gigantea (OMS), (4) 50% soil plus 50% organic matter from F. japonica (S/OMF), and (5) 50% soil plus 50% organic matter from S. gigantea (S/OMS). Analysis of nematode composition was conducted over five months from May to September. The number of identified genera and diversity index was highest in the S treatment. The soil moisture content was highest, pH and the diversity index were lowest and herbivorous nematodes were absent in OMF and OMS treatments. The addition of OMF and OMS to soil decreased the soil pH and moisture content and increased the contents of organic carbon and total nitrogen. In S/OMF, the abundance of herbivores was lower than in S and the abundances of bacterivores and fungivores decreased during the study period. In the S/OMS, a significantly high diversity index was observed, similar to that in the S treatment. The selected ecological and functional indices differed between S/OMF, S/OMS and S, but not significantly. Our findings indicated that the organic matter from the two invasive plants could differentially contribute to interactions with nematode communities. A decrease in productivity and the slowing of nutrient cycling demonstrated by the decrease in the abundances of bacterivores and fungivorous nematodes may be common adding organic matter of invasive plants to soil. A decrease in the abundance of herbivores after the application of organic matter of F. japonica could potentially be used as an ecologically friendly management strategy against plant parasitic nematodes.
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Affiliation(s)
- Michaela Jakubcsiková
- Institute of Parasitology, Slovak Academy of Science, 040 01 Košice, Slovakia; (M.J.); (M.R.)
| | - Lenka Demková
- Department of Ecology, Faculty of Humanities and Natural Sciences, University of Prešov, 080 01 Prešov, Slovakia;
| | - Marek Renčo
- Institute of Parasitology, Slovak Academy of Science, 040 01 Košice, Slovakia; (M.J.); (M.R.)
| | - Andrea Čerevková
- Institute of Parasitology, Slovak Academy of Science, 040 01 Košice, Slovakia; (M.J.); (M.R.)
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12
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Qi Y, Xian X, Zhao H, Yang M, Zhang Y, Yu W, Liu W. World Spread of Tropical Soda Apple ( Solanum viarum) under Global Change: Historical Reconstruction, Niche Shift, and Potential Geographic Distribution. BIOLOGY 2023; 12:1179. [PMID: 37759579 PMCID: PMC10525411 DOI: 10.3390/biology12091179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023]
Abstract
Solanum viarum has become extensively invasive owing to international trade, climate change, and land-use change. As it is classified as a quarantine weed by countries such as the U.S. and Mexico, it is critical to understand the prevailing historical dispersal, ecological niche dynamics, and distribution patterns. We reconstructed the historical invasion countries and analyzed the ecological niche shift of S. viarum. Using MaxEnt based on the conservativeness of ecological niches, we studied variations in the potential geographical distributions (PGDs) of S. viarum in ecosystems and variations in suitability probabilities along latitudinal gradients. The invasion history in six continents involved three phases: lag (before 1980), spread (1980-2010), and equilibrium (2010-present). The ecological niche remains conserved. The area of S. viarum PGDs had increased by 259 km2; the PGDs will expand to reach a maximum in the 2050s, SSP5-8.5. The PGDs of S. viarum will migrate to higher latitudes under the same future climate scenarios. The latitudes subject to high threats range from 20° to 30° in forest and cropland ecosystems, 15.5° to 27.5° (northern hemisphere) and 33.1° to 42.8° (southern hemisphere) in grassland ecosystems, and 20° to 35° in urban ecosystems. Global change has led to an increased threat of S. viarum at high latitudes. These findings provide a theoretical basis to monitor and control S. viarum.
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Affiliation(s)
- Yuhan Qi
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Q.); (X.X.); (H.Z.); (M.Y.); (Y.Z.)
| | - Xiaoqing Xian
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Q.); (X.X.); (H.Z.); (M.Y.); (Y.Z.)
| | - Haoxiang Zhao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Q.); (X.X.); (H.Z.); (M.Y.); (Y.Z.)
| | - Ming Yang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Q.); (X.X.); (H.Z.); (M.Y.); (Y.Z.)
| | - Yu Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Q.); (X.X.); (H.Z.); (M.Y.); (Y.Z.)
| | - Wentao Yu
- Fujian Key Laboratory for Technology Research of Inspection and Quarantine, Technology Centre of Fuzhou Customs, Fuzhou 350001, China
| | - Wanxue Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.Q.); (X.X.); (H.Z.); (M.Y.); (Y.Z.)
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13
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Mircea DM, Calone R, Estrelles E, Soriano P, Sestras RE, Boscaiu M, Sestras AF, Vicente O. Responses of different invasive and non-invasive ornamental plants to water stress during seed germination and vegetative growth. Sci Rep 2023; 13:13281. [PMID: 37587264 PMCID: PMC10432408 DOI: 10.1038/s41598-023-40517-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/11/2023] [Indexed: 08/18/2023] Open
Abstract
Biological invasions represent a major threat to natural ecosystems. A primary source of invasive plants is ornamental horticulture, which selects traits related to invasiveness. This study evaluated the responses to water stress during germination and vegetative growth of six species used as ornamental or medicinal plants. Three of them are recognised as invasive weeds in many world areas. Seeds were exposed to increasing concentrations of polyethylene glycol (PEG) mimicking drought stress, and young plants in the vegetative growth stage were subjected to two levels of water stress. Results indicated that in the absence of stress in control conditions, the most competitive species were those reported as weeds, namely Bidens pilosa L., Oenothera biennis L., and Centaurea cyanus L., the last regarding germination velocity. Under stress, only two species, Limonium sinuatum (L.) Mill. and C. cyanus, maintained germination at -1 MPa osmotic potential, but in the recovery experiment, an osmopriming effect of PEG was observed. The most tolerant species during growth were two natives in the Mediterranean region, L. sinuatum and Lobularia maritima (L.) Desv., both accumulating the highest proline concentrations. The sixth species studied, Echinacea purpurea (L.) Moench., proved to be more susceptible to stress in the two developmental stages. This study reveals that the most significant traits associated with invasiveness were related to germination, especially in the absence of stress.
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Affiliation(s)
- Diana M Mircea
- Department of Forestry, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 3-5 Manastur Street, 400372, Cluj-Napoca, Romania
| | - Roberta Calone
- CREA-Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment, 40128, Bologna, Italy
- CREA-Council for Agricultural Research and Economics, Research Centre for Agriculture and Environment, 00184, Rome, Italy
| | - Elena Estrelles
- Cavanilles Institute of Biodiversity and Evolutionary Biology, Botanical Garden, University of Valencia, Quart, 80, 46008, Valencia, Spain
| | - Pilar Soriano
- Cavanilles Institute of Biodiversity and Evolutionary Biology, Botanical Garden, University of Valencia, Quart, 80, 46008, Valencia, Spain
| | - Radu E Sestras
- Department of Horticulture and Landscape, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 3-5 Manastur Street, 400372, Cluj-Napoca, Romania
| | - Monica Boscaiu
- Mediterranean Agroforestry Institute (IAM), Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain
| | - Adriana F Sestras
- Department of Forestry, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 3-5 Manastur Street, 400372, Cluj-Napoca, Romania.
| | - Oscar Vicente
- Institute for the Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain
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14
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Palmér C, Wallin A, Persson J, Aronsson M, Blennow K. Effective communications on invasive alien species: Identifying communication needs of Swedish domestic garden owners. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 340:117995. [PMID: 37100004 DOI: 10.1016/j.jenvman.2023.117995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/13/2023] [Accepted: 04/19/2023] [Indexed: 05/12/2023]
Abstract
Invasive alien species threaten biodiversity with domestic gardens acting as a major pathway for the introduction of alien species. Even though the Nordic region is not currently a hotspot for biological invasions, the number of invasions in the Nordic area has been predicted to increase due to climate change. Given a time lag between introduction and invasion, many non-invasive horticultural alien species already introduced into gardens may become invasive in the future. This study aimed to identify the communication needs of Swedish garden owners regarding their management of invasive alien species. A survey among domestic garden owners, informed by topic specialists and local area experts, and interviews with garden owners were conducted in three different bio-climatic areas in a latitudinal gradient across Sweden. The questions targeted invasive alien species and their relations to biodiversity loss and climate change, as well as measures taken to control these species. Analysing the survey data collected in relation to measures taken to control invasive species, Bayesian Additive Regression Tree (BART) modelling was used to identify geographically varying communication needs of the domestic garden owners. In all study areas, the garden owners' measures taken to control invasive alien species were correlated with their strength of beliefs in having experienced local biodiversity loss. A majority of the garden owners were, moreover, uncertain about the impact of climate change on the invasiveness of alien species. In addition, the garden owners' capacity for identifying invasive alien species was often in need of improvement, in particular with respect to the species Impatiens glandulifera, Reynoutria japonica and Rosa rugosa. The results suggest that the evidence-based guidelines for effective communications we developed, have the potential to help communicators meet the local communication needs of garden owners across Sweden, in relation to the management of invasive alien garden species.
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Affiliation(s)
- C Palmér
- Department of Landscape Architecture, Planning and Management, Swedish University of Agricultural Sciences, Sweden
| | - A Wallin
- Division of Cognitive Science, Department of Philosophy, Lund University, Sweden
| | - J Persson
- Department of Philosophy, Lund University, Sweden
| | - M Aronsson
- Swedish Species Information Centre, Swedish University of Agricultural Sciences, Sweden
| | - K Blennow
- Department of Landscape Architecture, Planning and Management, Swedish University of Agricultural Sciences, Sweden; Department of Physical Geography and Ecosystem Science, Lund University, Sweden.
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15
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Banerjee AK, Lee TM, Feng H, Liang X, Lin Y, Wang J, Yin M, Peng H, Huang Y. Implications for biological invasion of non-native plants for sale in the world's largest online market. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2023; 37:e14055. [PMID: 36864722 DOI: 10.1111/cobi.14055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 11/07/2022] [Accepted: 12/20/2022] [Indexed: 07/29/2023]
Abstract
Internet trade is increasingly recognized as a dispersal pathway of non-native plant species that is difficult to monitor. We sought to identify non-native flora present in the Chinese online market, the largest e-commerce market globally, and to decipher the effect of existing trade regulations, among other variables, on e-trading patterns and to inform policy. We used a comprehensive list of 811 non-native plant species in China present in 1 of the 3 phases of the invasion continuum (i.e., introduced, naturalized, and invasive). The price, propagule types, and quantities of the species offered for sale were retrieved from 9 online stores, including 2 of the largest platforms. Over 30% of the non-native species were offered for sale in the online marketplaces; invasive non-native species dominated the list (45.53%). No significant price difference was observed across the non-native species of the 3 invasion categories. Among the 5 propagule types, a significantly higher number of non-native species were offered for sale as seeds. The regression models and path analyses consistently revealed a direct positive effect of the number of uses and species' minimum residence time and an indirect effect of biogeography on the pattern of trade in non-native plant species when minimal phylogenetic signal was detected. A review of the existing phytosanitary regulations in China revealed their inadequacy in managing e-trading of non-native plant species. To address the problem, we propose integration of a standardized risk assessment framework that considers perceptions of stakeholders and is adaptable based on continuous surveillance of the trade network. If implemented successfully, the measures could provide a template for other countries to strengthen trading regulations for non-native plant species and take proactive management measures.
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Affiliation(s)
- Achyut Kumar Banerjee
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
- School of Ecology, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Tien Ming Lee
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
- School of Ecology, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Hui Feng
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xinru Liang
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yuting Lin
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jiakai Wang
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Minghui Yin
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Hao Peng
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yelin Huang
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
- School of Ecology, Sun Yat-sen University, Shenzhen, Guangdong, China
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16
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Gillman L. Calling time on alien plantscapes. GLOBAL CHANGE BIOLOGY 2023; 29:3539-3544. [PMID: 37272874 DOI: 10.1111/gcb.16704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 03/29/2023] [Indexed: 06/06/2023]
Abstract
Both urban and rural environments around the globe have become dominated by alien plant species to the extent that plantscapes from one region or country have become difficult to distinguish from many others. This process of plant community homogenisation comes at a cost to cultural identity and undermines people's sense of place. Although invasive alien plant species have received considerable attention in recent decades, issues with non-invasive alien plant species have largely been ignored, and yet they contribute significantly to biotic homogeneity and impose an ever accumulating invasion debt: a debt that increases in proportion with their population sizes. By contrast, an abundance of native species in the places where people live is important for strengthening commitment to biodiversity conservation. Is there therefore sufficient evidence of harm from increasing numbers of non-invasive alien plants to justify local and central governments introducing measures to substantially reduce the proportion of non-invasive aliens in both urban and rural environments?
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Affiliation(s)
- Len Gillman
- Faculty of Design and Creative Technologies, Auckland University of Technology, Auckland, New Zealand
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17
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Chen J, Zhang Y, Liu W, Wang C, Ma F, Xu H. Distribution Patterns and Determinants of Invasive Alien Plants in China. PLANTS (BASEL, SWITZERLAND) 2023; 12:2341. [PMID: 37375966 DOI: 10.3390/plants12122341] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023]
Abstract
In recent years, invasive alien plants (IAPs) have caused serious ecological disasters and economic losses in China. This study combined three IAP species richness-related indices (species richness of IAPs, first records of IAPs, and the relative species richness of IAPs), as well as indices reflecting distribution and dispersal patterns (average similarity coefficient of IAPs) and invasiveness (average risk score of IAPs), to conduct an integrated regional-invasion risk assessment based on the principal component analysis (PCA) method. Partial least-squares (PLS) regression was conducted to explore the explanatory power of 12 environmental and anthropogenic factors on different invasion indices. The results indicated that coastal provinces and Yunnan had high IAP introduction risk, as well as high synthetic-risk scores. The dispersal of IAPs in mid-latitude provinces should be particularly prevented. For species richness of IAPs, more environmental factors with variable importance for the project (VIP) values higher than 1 were retained in the optimal model, reflecting the importance of environmental filtering on IAPs. Visitors were the most important predictor for first records of IAPs. Compared to species richness (R2 = 79.5%), first records were difficult to predict (R2 = 60.4%) and were influenced by anthropogenic factors. There was spatial distribution congruence of various families of IAPs. Generally, the correlations of the residuals of species richness were still significant, with 0.421 (p < 0.05) as the lowest Pearson correlation coefficient, which indicated that external factors could not fully explain the spatial distribution congruence. These findings could enrich the relevant research on IAP invasion mechanisms and provide suggestions for regional IAP detection and response.
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Affiliation(s)
- Jing Chen
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
| | - Yanjing Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
| | - Wei Liu
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
| | - Chenbin Wang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
| | - Fangzhou Ma
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
| | - Haigen Xu
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of China, Nanjing 210042, China
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18
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Bonnamour A, Blake RE, Liebhold AM, Nahrung HF, Roques A, Turner RM, Yamanaka T, Bertelsmeier C. Historical plant introductions predict current insect invasions. Proc Natl Acad Sci U S A 2023; 120:e2221826120. [PMID: 37276425 PMCID: PMC10268304 DOI: 10.1073/pnas.2221826120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 04/20/2023] [Indexed: 06/07/2023] Open
Abstract
Thousands of insect species have been introduced outside of their native ranges, and some of them strongly impact ecosystems and human societies. Because a large fraction of insects feed on or are associated with plants, nonnative plants provide habitat and resources for invading insects, thereby facilitating their establishment. Furthermore, plant imports represent one of the main pathways for accidental nonnative insect introductions. Here, we tested the hypothesis that plant invasions precede and promote insect invasions. We found that geographical variation in current nonnative insect flows was best explained by nonnative plant flows dating back to 1900 rather than by more recent plant flows. Interestingly, nonnative plant flows were a better predictor of insect invasions than potentially confounding socioeconomic variables. Based on the observed time lag between plant and insect invasions, we estimated that the global insect invasion debt consists of 3,442 region-level introductions, representing a potential increase of 35% of insect invasions. This debt was most important in the Afrotropics, the Neotropics, and Indomalaya, where we expect a 10 to 20-fold increase in discoveries of new nonnative insect species. Overall, our results highlight the strong link between plant and insect invasions and show that limiting the spread of nonnative plants might be key to preventing future invasions of both plants and insects.
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Affiliation(s)
- Aymeric Bonnamour
- Department of Ecology and Evolution, University of Lausanne, 1015Lausanne, Switzerland
| | | | - Andrew M. Liebhold
- Northern Research Station, Forest Service, US Department of Agriculture, Morgantown, WV26505
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, 16500Prague, Czech Republic
| | - Helen F. Nahrung
- Forest Industries Research Centre, University of the Sunshine Coast, Buderim, QLD4556, Australia
| | - Alain Roques
- Institut National de la Recherche Agronomique, UR 0633, Zoologie Forestière, 4575Orléans, France
| | - Rebecca M. Turner
- Scion (New Zealand Forest Research Institute), Christchurch8440, New Zealand
| | - Takehiko Yamanaka
- Research Center for Agricultural Information Technology, National Agriculture and Food Research Organization, 305-8517Tsukuba, Japan
| | - Cleo Bertelsmeier
- Department of Ecology and Evolution, University of Lausanne, 1015Lausanne, Switzerland
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19
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Liu D, Semenchuk P, Essl F, Lenzner B, Moser D, Blackburn TM, Cassey P, Biancolini D, Capinha C, Dawson W, Dyer EE, Guénard B, Economo EP, Kreft H, Pergl J, Pyšek P, van Kleunen M, Nentwig W, Rondinini C, Seebens H, Weigelt P, Winter M, Purvis A, Dullinger S. The impact of land use on non-native species incidence and number in local assemblages worldwide. Nat Commun 2023; 14:2090. [PMID: 37045818 PMCID: PMC10097616 DOI: 10.1038/s41467-023-37571-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 03/20/2023] [Indexed: 04/14/2023] Open
Abstract
While the regional distribution of non-native species is increasingly well documented for some taxa, global analyses of non-native species in local assemblages are still missing. Here, we use a worldwide collection of assemblages from five taxa - ants, birds, mammals, spiders and vascular plants - to assess whether the incidence, frequency and proportions of naturalised non-native species depend on type and intensity of land use. In plants, assemblages of primary vegetation are least invaded. In the other taxa, primary vegetation is among the least invaded land-use types, but one or several other types have equally low levels of occurrence, frequency and proportions of non-native species. High land use intensity is associated with higher non-native incidence and frequency in primary vegetation, while intensity effects are inconsistent for other land-use types. These findings highlight the potential dual role of unused primary vegetation in preserving native biodiversity and in conferring resistance against biological invasions.
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Affiliation(s)
- Daijun Liu
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030, Vienna, Austria.
| | - Philipp Semenchuk
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030, Vienna, Austria
- Department of Arctic Biology, UNIS-The University Centre in Svalbard, 9171, Longyearbyen, Norway
| | - Franz Essl
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030, Vienna, Austria
| | - Bernd Lenzner
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030, Vienna, Austria
| | - Dietmar Moser
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030, Vienna, Austria
| | - Tim M Blackburn
- Research Department of Genetics, Evolution and Environment, University College London, London, UK
- Institute of Zoology, Zoological Society of London, London, UK
| | - Phillip Cassey
- Invasion Science and Wildlife Ecology Lab, School of Biological Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Dino Biancolini
- Global Mammal Assessment programme, Dipartimento di Biologia e Biotecnologie "Charles Darwin", Sapienza Università di Roma, Rome, Italy
- National Research Council of Italy - Institute for Bioeconomy (CNR-IBE), Via dei Taurini 19, Rome, Italy
| | - César Capinha
- Centro de Estudos Geográficos, Instituto de Geografia e Ordenamento do Território da Universidade de Lisboa, Lisboa, Portugal
- Laboratório Associado TERRA, Tapada da Ajuda, 1349-017, Lisboa, Portugal
| | - Wayne Dawson
- Department of Biosciences, Durham University, South Road, Durham, DH1 3LE, UK
| | - Ellie E Dyer
- UK Centre for Ecology and Hydrology, Wallingford, UK
- Centre for Biodiversity and Environment Research, Department of Genetics, Evolution, and Environment, University College London, London, UK
| | - Benoit Guénard
- Insect Biodiversity and Biogeography Laboratory, School of Biological Sciences, The University of Hong Kong, Pok Fu Lam Rd, Lung Fu Shan, Hong Kong SAR, China
| | - Evan P Economo
- Biodiversity and Biocomplexity Unit, Okinawa Institute of Science and Technology Graduate University, Onna, Okinawa, 904-0495, Japan
- Radcliffe Institute for Advanced Study, Harvard University, Cambridge, MA, 02138, USA
| | - Holger Kreft
- Biodiversity, Macroecology & Biogeography, University of Göttingen, Büsgenweg 1, D-37077, Göttingen, Germany
- Centre of Biodiversity and Sustainable Land Use (CBL), University of Göttingen, Büsgenweg 1, D-37077, Göttingen, Germany
| | - Jan Pergl
- Czech Academy of Sciences, Institute of Botany, Department of Invasion Ecology, CZ-252 43, Průhonice, Czech Republic
| | - Petr Pyšek
- Czech Academy of Sciences, Institute of Botany, Department of Invasion Ecology, CZ-252 43, Průhonice, Czech Republic
- Department of Ecology, Faculty of Science, Charles University, Viničná 7, CZ-128 44, Prague, Czech Republic
| | - Mark van Kleunen
- Ecology, Department of Biology, University of Konstanz, Universitätsstrasse 10, D-78457, Konstanz, Germany
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, 318000, China
| | - Wolfgang Nentwig
- Institute of Ecology and Evolution, University of Bern, Baltzerstrasse 6, CH-3012, Bern, Switzerland
| | - Carlo Rondinini
- Global Mammal Assessment programme, Dipartimento di Biologia e Biotecnologie "Charles Darwin", Sapienza Università di Roma, Rome, Italy
| | - Hanno Seebens
- Senckenberg Biodiversity and Climate Research Centre, Senckenberganlage 25, 60325, Frankfurt, Germany
| | - Patrick Weigelt
- Biodiversity, Macroecology & Biogeography, University of Göttingen, Büsgenweg 1, D-37077, Göttingen, Germany
- Centre of Biodiversity and Sustainable Land Use (CBL), University of Göttingen, Büsgenweg 1, D-37077, Göttingen, Germany
- Campus-Institut Data Science, University of Göttingen, Goldschmidtstraße 1, D-37077, Göttingen, Germany
| | - Marten Winter
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Andy Purvis
- Department of Life Sciences, Natural History Museum, London, SW7 5BD, UK
- Department of Life Sciences, Imperial College London, Ascot, SL5 7PY, UK
| | - Stefan Dullinger
- Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030, Vienna, Austria
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Rusterholz HP, Huber K, Baur B. Invasion of a Horticultural Plant into Forests: Lamium galeobdolon argentatum Affects Native Above-Ground Vegetation and Soil Properties. PLANTS (BASEL, SWITZERLAND) 2023; 12:1527. [PMID: 37050152 PMCID: PMC10097399 DOI: 10.3390/plants12071527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/28/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
Horticultural trade is considered the most important pathway for the introduction of non-native plant species. Numerous horticultural plants are spreading from private gardens and public green space into natural habitats and have the potential to alter native biodiversity and ecosystem functioning. We assessed the invasiveness of the horticultural plant Lamium galeobdolon subsp. argentatum. We documented its spread in semi-natural habitats in the surroundings of Basel, Switzerland, over the past decades. We compared the performance of L. g. argentatum with that of the native subspecies Lamium galeobdolon galeobdolon based on surveys in forests and a pot experiment under standardized conditions. We also assessed whether the two subspecies differentially affect native forest vegetation and various physical, chemical and biological soil properties. The horticultural L. g. argentatum has tripled its occurrence in forests in the region of Basel in the last four decades. Lamium g. argentatum had both a higher growth rate and regeneration capacity than the native subspecies. Furthermore, L. g. argentatum reduced native plant species richness and changed the species composition of the ground vegetation, in addition to altering several soil properties in deciduous forests. Lamium g. argentatum should therefore be considered an invasive taxon.
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Affiliation(s)
- Hans-Peter Rusterholz
- Department of Environmental Sciences, University of Basel, Bernoullistrasse 30, 4056 Basel, Switzerland; (H.-P.R.); (K.H.)
| | - Katharina Huber
- Department of Environmental Sciences, University of Basel, Bernoullistrasse 30, 4056 Basel, Switzerland; (H.-P.R.); (K.H.)
- Program Man-Society-Environment, Department of Environmental Sciences, University of Basel, Vesalgasse 1, 4051 Basel, Switzerland
| | - Bruno Baur
- Department of Environmental Sciences, University of Basel, Bernoullistrasse 30, 4056 Basel, Switzerland; (H.-P.R.); (K.H.)
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Konaikova V, Peregrym M. The escape of alien species from botanical gardens: a new example from Ukraine. Biologia (Bratisl) 2023. [DOI: 10.1007/s11756-023-01384-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
Abstract
AbstractThe spontaneous appearance of the annual plant, Veronica cardiocarpa Walp. (Plantaginaceae), from Central and Minor Asia was recorded in the O.V. Fomin Botanical Garden of the Taras Shevchenko National University of Kyiv in 1983 as a result of unintentional introduction. It was the first documented occurrence outside of its natural range. V. cardiocarpa has been widespread within the Botanical Garden since 2007, and the first location outside the Botanical Garden was discovered in 2010. Later, the presence of V. cardiocarpa was noted in Chernihiv, as well as new locations in Kyiv. This species has become a new invasive plant of the flora of Ukraine, because it occupies new areas and shows high seed productivity. Additionally, V. cardiocarpa has high seed germination under certain conditions that were established during our experiment, consisting of four variants and a control. The conditions of the second variant—cold stratification with low positive temperatures for two months and germination of seeds at + 18–20 °C—were the most favourable—49 ± 4.36% germinated seeds began to appear on the third day after completion of stratification. Moreover, some indirect facts show that V. cardiocarpais is already deeply integrated in local urban ecosystems. Therefore, the main stages of the adaptation and spreading of V. cardiocarpa have been studied and described in Ukraine in this research. Information about a new location of this species in the Russian Federation significantly changed the understanding of V. cardiocarpa distribution in Eastern Europe. Finally, in this article, we discuss the important matter of dealing with the V. cardiocarpa invasion, and some approaches to prevent similar cases of the new alien species penetration through collections of botanical gardens and arboreta.
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The Diversity of Alien Plant Species in South Africa’s National Botanical and Zoological Gardens. DIVERSITY 2023. [DOI: 10.3390/d15030407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
The management of biological invasions, which pose a growing threat to natural resources and human well-being, is critical for reducing associated negative impacts. As part of the process of developing a strategy for the management of biological invasions in the South African National Biodiversity Institute’s (SANBI) gardens, we collated a list of alien plant species from 13 gardens as part of a situational analysis. We requested lists of alien plant species recorded in each of the SANBI’s gardens. A total of 380 records included 225 alien plant species belonging to 73 families. A significant number of species were intentionally introduced through horticultural trade as ornamentals (49%; n = 225), while 20.9% were consumed as either food or medicine by humans. Plant life forms included woody and herbaceous plants, graminoids, succulents and ferns. Herbaceous (42.7%; n = 225) and woody plants (3.8%) were the dominant life forms. The Walter Sisulu National Botanical Garden had the highest number of alien species (88 species), followed by Kirstenbosch (61 species) and Pretoria (46 species) National Botanical Gardens, with herbaceous species constituting the largest number in all gardens (i.e., 47, 19, and 27 species, respectively). The number of species that we recorded that were listed in the National Environmental Management: Biodiversity Act (NEM: BA) (Act No. 10 of 2004): Alien and Invasive Species Regulations’ categories were not notably different from the number of unlisted species (58.2% vs. 42.8%). The number of species listed in the different categories varied significantly across the different gardens, with a significantly higher number of unlisted species and of Category 1b species in the Walter Sisulu, Kirstenbosch and Pretoria National Botanical Gardens than in other gardens. That a significantly larger number of alien species originated from South America points to the need to improve biosecurity controls on existing relations. The results of this study provided a baseline database to help comparison between successive surveys in future.
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Sokolova VV, Khomutovskiy MI, Vinogradova YK. Invasive Potential of Caucasian Plants Cultivated in the Tsitsin Main Botanical Garden of the Russian Academy of Sciences. RUSSIAN JOURNAL OF BIOLOGICAL INVASIONS 2023. [DOI: 10.1134/s2075111723010113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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de Beer IW, Hui C, Botella C, Richardson DM. Drivers of compositional turnover of narrow-ranged versus widespread naturalised woody plants in South Africa. Front Ecol Evol 2023. [DOI: 10.3389/fevo.2023.1106197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
IntroductionAlien trees and shrubs have become increasingly common invaders globally and have caused major negative impacts to ecosystems and society. Non-native woody plant species make up the majority of legislated invasive alien taxa in South Africa and contribute substantially to recorded negative impacts. It is of management interest to elucidate the macroecological processes that mediate the assembly of alien taxa, as this is expected to be associated with anthropogenic factors (e.g., human activity, introduction events, pathways of propagule dispersal mediated by humans) and bioclimatic factors (such as diurnal temperature range and precipitation gradients). These analyses require large species-occurrence datasets with comprehensive sampling across broad environmental conditions. Efforts of citizen scientists produce large numbers of occurrence records in a consistent manner which may be utilised for scientific investigations.MethodsResearch Grade occurrence data on naturalised plants of South Africa were extracted from the citizen scientist platform iNaturalist. Sampling bias was mitigated using statistical modelling of background points estimated from a Target Group of species which identifies well sampled communities. The drivers of assembly for alien plants at different range sizes were identified using multi-site generalised dissimilarity modelling (MS-GDM) of zeta diversity. The predicted compositional similarity between all cells was computed based on the subset of identified well sampled communities and using generalised dissimilarity modelling (GDM). From this, alien bioregions were identified using a k-means cluster analysis.Results and DiscussionBioclimatic factors significantly influenced community turnover in inland areas with large diurnal temperature ranges, and in areas with high precipitation. Communities separated by large geographical distances had significantly different compositions, indicating little contribution of long-range propagule movement by humans, and the presence of localised introduction hubs within the country which harbour unique species compositions. Analyses also showed a significant contribution of road density to turnover, which may be moderated by the habitat service provided by road verges. The same is true for natural dispersal via rivers in arid areas. The distribution of naturalised tree and shrub species is geographically clustered and forms six alien bioregions that are distinct from the South African biomes defined by native species distributionanalysis.
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Bansal P, Rao AS, Yadav SS, Bhandoria M, Dash S. Floristic diversity of native wild ornamental plants of Aravalli Hill Range: a case study from district Rewari, Haryana, India. JOURNAL OF THREATENED TAXA 2023. [DOI: 10.11609/jott.8068.15.1.22479-22493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Ornamental plants are important constituent of floristic diversity which beautify and glorify our surroundings. They add a positive attitude to life, intensify the feeling of happiness, and enhance the economic value of the estate. There has been a growing trend promoted by environmentalists, ecologists, and horticulturalists toward the inclusion of new wild ornamental plants (WOPs) for minimising their maintenance costs and enhancing their survival rate. The current study inventorised the floristic diversity of native WOPs of the Aravalli Hill Range of Haryana State. Researchers recorded 88 native WOPs species belonging to 40 plant families. Asteraceae and Poaceae are the most dominant families, contributing seven species each followed by Fabaceae and Malvaceae with six species each. The habit wise distribution of native WOPs from the Aravalli hill ranges depicted that herbaceous types of plants are dominant with 53.4 % followed by trees (18.2 %), climbers (14.8 %), and shrubs (11.4%). These native WOPs were found suitable for various ornamental purposes which ranges from the garden, potted, medicinal, lawn cover, avenue tree, hedge/fencing, edible, religious/ ceremonial, road dividers, cacti, succulent, and indoor foliage. The current study documented four plants, viz., Argyreia cuneata (Willd.) Ker Gawl., Boswellia serrata Roxb. ex Colebr., Pulicaria wightiana (DC.) C.B.Clarke, and Rivea hypocrateriformis (Desr.) Choisy. endemic to the Indian subcontinent. Blumea lacera (Burm.f.) DC., Cleome viscosa L., Saccharum spontaneum L., and Triumfetta rhomboidea Jacq. were reported to have somewhat invasive potential in this region. Further, it is also suggested to introduce some potential native WOPs into domestication by florists, horticulturists, nurserymen, and municipal authorities for the protection, conservation, and perpetuation of these plants to minimize the use of foreign floral species to control the further spread of alien plants.
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Oduor AM, Yang B, Li JM. Alien ornamental plant species cultivated in Taizhou, southeastern China, may experience greater range expansions than native species under future climates. Glob Ecol Conserv 2023. [DOI: 10.1016/j.gecco.2023.e02371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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Pušić M, Narandžić T, Ostojić J, Grubač M, Ljubojević M. Assessment and potential of ecosystem services of ornamental dendroflora in public green areas. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:2850-2865. [PMID: 35934739 DOI: 10.1007/s11356-022-22299-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
The green infrastructure of the city of Novi Sad is characterized by a significant presence of ornamental invasive alien species, which might lead to their uncontrolled spread and suppression of autochthonous dendroflora. This study aimed to determine the ecosystem services and disservices of ornamental dendroflora in Novi Sad, as well as how they can affect urban green areas. Of the total ornamental dendroflora in Novi Sad, 88.33% of species with a good adaptation were determined, while 10% had a medium and 1.67% had a very good adaptation. Thirty-four allochthonous species showed very high (38.24%), moderate (47.06%), and low (14.71%) invasive potential according to the conducted invasiveness risk assessment. These species are also characterized by high (2.94%), moderate (67.65%), and low (29.41%) allergenic potential. On the contrary, 26 ornamental autochthonous species are characterized by moderate (38.46%) and low (61.54%) rates of spread on public green areas, while also characterized by high (26.92%), moderate (50%), and weak (23.08%) allergenic potential. Ornamental dendroflora provides many more positive ecosystem services, such as urban afforestation, climate regulation, decorative-aesthetic value, air and water purification, ecotourism and recreation, and other services that are of great benefit to the residents of that city. The highest calculated values of ecosystem services in allochthonous and autochthonous species were 27 and 26.5 (out of possible maximal value 40), while ecosystem disservices accounted down to the value of - 13.5 (out of possible minimal value - 22). Therefore, intrinsic disservices such as the production of large amounts of green waste of ornamental dendroflora can be shifted into a novel ecosystem service-green solutions based on nature, to avoid unsuitable deposition of seeds in the soil and creation of suitable vegetation on public green areas.
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Affiliation(s)
- Magdalena Pušić
- Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia
| | - Tijana Narandžić
- Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia
| | - Jovana Ostojić
- Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia
| | - Milica Grubač
- Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia
| | - Mirjana Ljubojević
- Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia.
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Flora introduced and naturalized in Central America. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02968-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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INVASIVE POTENTIAL OF CAUCASUS PLANTS IN THE TSITSIN BOTANICAL GARDEN OF THE RUSSIAN ACADEMY OF SCIENCES. RUSSIAN JOURNAL OF BIOLOGICAL INVASIONS 2022. [DOI: 10.35885/1996-1499-15-4-55-68] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
The results of alien plant’s naturalization in the Caucasus flora exposition of the Main Botanical Garden of the Russian Academy of Sciences (Moscow) are presented. In order to identify the characters contributing to the potential success of invasion, the naturalized and nonnaturalized species were compared. Out of the 1246 taxa have been intentionally introduced for 76 years, 57 species (4.5%) showed the ability to naturalize, while 12 species (less than 1%) actually "escaped" from the culture. The dispersal of resistant unpretentious plants was facilitated by the weakening of collection care in the 1990s. After the revision carried out in 2020, another 17 species have successfully naturalized. Apiaceae and Boraginaceae showed the highest degree of naturalization. Self- reproduction was observed in 440 species, and the greatest number of naturalized taxa (19%) belonged to plants that were reproduced both by vegetative propagation and by self-seeding, while among those propagated only by self-seeding, 16% of species were naturalized and among those propagated vegetatively, only 6%. Plants of subalpine tall grasses and forest communities of the Caucasus were the most adapted to the conditions of Moscow. None of the species confined to semi-deserts, arid sparse forests, upland xerophytic communities, steppes, alpine meadows, high-altitude rocks and screes and subtropical forests of Colchis and Talysh became invasive. Short-rooted and long-rooted perennial herbaceous plants prevailed among the naturalized plants. The widespread opinion about the difficulty of introducing endemic plants was not confirmed. In terms of the proportion of naturalized species, they were insignificantly inferior to wide range species, and superior to them in terms of the number of highly invasive and invasive species. The complex of characters that can predict a high probability of transformation of intentionally introduced plant species into invasive ones has been revealed. The results of the analysis of invasiveness of Caucasian species will be used to prevent the introduction of aggressive alien plants and to develop a scientifically based approach to plant exhibiting.
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The invasion history of Elodea canadensis and E. nuttallii (Hydrocharitaceae) in Italy from herbarium accessions, field records and historical literature. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02949-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractWe analysed the invasion history of two North American macrophytes (Elodea canadensis and E. nuttallii) in Italy, through an accurate census of all available herbarium and field records, dating between 1850 and 2019, and a rich literature collection describing the initial introduction and naturalisation phase that supports the results obtained by the occurrence records. Elodea canadensis arrived in Italy before 1866 and had two invasion phases, between the 1890s and 1920s and between the 1990s and 2000s; E. nuttallii, probably arrived in the 1970s, started invading in 2000 and the invasion is still ongoing. Botanical gardens and fish farming played a crucial role in dispersal and naturalisation of both species. The current invasion range of both species is centred in northern Italy, with scattered occurrences of E. canadensis in central and southern regions. River Po represents a dispersal barrier to the Mediterranean region and a strategic monitoring site to prevent the invasion in the peninsula. The study detects differences in the niches of the two species during the introduction and naturalisation phase and a habitat switch occurred after 1980 in E. canadensis and after 2000 in E. nuttallii, during their expansion phases. For E. canadensis the switch corresponds to the second invasion round. Further research can clarify whether the second invasion round is due to confusion of the recently introduced E. nuttallii with E. canadensis, to a cryptic introduction of a new genotype, to post-introduction evolution, or just to an increased scientific interest in biological invasions.
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Keet JH, Datta A, Foxcroft LC, Kumschick S, Nichols GR, Richardson DM, Wilson JRU. Assessing the level of compliance with alien plant regulations in a large African protected area. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02883-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Guo K, Pyšek P, Chytrý M, Divíšek J, Lososová Z, van Kleunen M, Pierce S, Guo W. Ruderals naturalize, competitors invade: varying roles of plant adaptive strategies along the invasion continuum. Funct Ecol 2022. [DOI: 10.1111/1365-2435.14145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kun Guo
- Zhejiang Tiantong Forest Ecosystem National Observation and Research Station & Research Center for Global Change and Complex Ecosystems School of Ecological and Environmental Sciences East China Normal University Shanghai P. R. China
| | - Petr Pyšek
- Czech Academy of Sciences Institute of Botany Department of Invasion Ecology Průhonice Czech Republic
- Department of Ecology, Faculty of Science Charles University, Viničná 7 Prague Czech Republic
| | - Milan Chytrý
- Department of Botany and Zoology, Faculty of Science Masaryk University, Kotlářská 2 Brno Czech Republic
| | - Jan Divíšek
- Department of Botany and Zoology, Faculty of Science Masaryk University, Kotlářská 2 Brno Czech Republic
- Department of Geography, Faculty of Science Masaryk University, Kotlářská 2 Brno Czech Republic
| | - Zdeňka Lososová
- Department of Botany and Zoology, Faculty of Science Masaryk University, Kotlářská 2 Brno Czech Republic
| | - Mark van Kleunen
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation Taizhou University Taizhou P. R. China
- Ecology, Department of Biology University of Konstanz, Universitätsstrasse 10 Konstanz Germany
| | - Simon Pierce
- Department of Agricultural and Environmental Sciences (DiSAA) University of Milan, Via G. Celoria 2 Milan Italy
| | - Wen‐Yong Guo
- Zhejiang Tiantong Forest Ecosystem National Observation and Research Station & Research Center for Global Change and Complex Ecosystems School of Ecological and Environmental Sciences East China Normal University Shanghai P. R. China
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The Genus Kalanchoe (Crassulaceae) in Ecuador: From Gardens to the Wild. PLANTS 2022; 11:plants11131746. [PMID: 35807700 PMCID: PMC9269312 DOI: 10.3390/plants11131746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 11/16/2022]
Abstract
The genus Kalanchoe, mostly indigenous from Madagascar and Tropical Africa, is widely traded for ornamental value. In this study, we provided an updated list of wild and cultivated Kalanchoe taxa in Ecuador; we analyzed the temporal–spatial pattern of their records, and we categorized the invasion status for each taxon and its environment preferences. The records of any taxa belonging to this genus were compiled from an extensive search using various information sources. Our results confirmed the presence of 16 taxa of Kalanchoe in the country. Seven species and a hybrid were detected in the wild. Kalanchoe densiflora, K. laxiflora, K. pinnata, K. tubiflora, and K. ×houghtonii were categorized as invasive. We detected invasive records of some of these plants in protected areas. Almost all taxa had at least one record as cultivated, suggesting that the invasion pathway is ornamental trade. Kalanchoe pinnata individuals in the wild were recorded in the four biogeographic regions of Ecuador, which could be associated with the wide range of precipitations and temperatures in which the species may dwell. Our study highlights the importance of reducing the ornamental value and limiting the use of Kalanchoe taxa with invasive potential in horticulture and promoting, instead, the use of indigenous species.
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Pabst R, Dias FS, Borda-de-Água L, Rodríguez-González PM, Capinha C. Assessing and Predicting the Distribution of Riparian Invasive Plants in Continental Portugal. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.875578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The number of alien plant species is growing steadily across all world regions. These numbers tend to be exceptionally high in riparian ecosystems, often with substantial negative consequences for native species communities and ecosystem services provision. Here, we map the richness of invasive alien plant species in riparian ecosystems of continental Portugal, assess the relative importance of human and natural factors in shaping the uncovered patterns, and predict richness values along watercourses and at the municipal level for the whole study area. We found a higher richness of invasive alien plants in low altitudes and in downstream areas where human concentration is high. As time progresses, ongoing and increasing levels of socio-economic activity and globalization of plant trade will conceivably lead to a higher number of alien species becoming established. National and sub-national measures aiming to prevent and manage biological invasions in riparian ecosystems require coordinated efforts involving both local entities and those with responsibilities in the management of upstream catchment areas. These efforts must also be targeted to achieve future biodiversity protection goals as part of the EU Biodiversity Strategy for 2030.
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Cubino JP, Těšitel J, Fibich P, Lepš J, Chytrý M. Alien plants tend to occur in species-poor communities. NEOBIOTA 2022. [DOI: 10.3897/neobiota.73.79696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Invasive alien species can have severe negative impacts on natural ecosystems. These impacts may be particularly pronounced within ecological communities, where alien species can cause local extinctions. However, it is unclear whether individual alien plant species consistently occur in species-poor or species-rich communities across broad geographical scales and whether this pattern differs amongst habitat types. Using ~17,000 vegetation plots sampled across the Czech Republic, we calculated the median, range and skewness of the distribution in community species richness associated with 73 naturalised alien plant species. We compared the observed values with those obtained under a null expectation to test whether alien species occurred at random with respect to species richness in forest and grassland communities. We found that the relationship between the occurrence of alien species and the diversity of local plant communities was species-dependent and varied across habitats. Overall, however, alien species occurred in species-poor communities more often than expected by chance. These patterns were more pronounced in grasslands, where alien species also occurred in communities with a lower range of species richness than under random expectation. Our study represents one of the most comprehensive quantitative analyses relating alien plant invasion to resident community diversity at a broad geographical scale. This research also demonstrates that multi-species studies are needed to understand the processes of community assembly and to assess the impact of alien plant invasions on native diversity.
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Turbelin AJ, Diagne C, Hudgins EJ, Moodley D, Kourantidou M, Novoa A, Haubrock PJ, Bernery C, Gozlan RE, Francis RA, Courchamp F. Introduction pathways of economically costly invasive alien species. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02796-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
AbstractIntroduction pathways play a pivotal role in the success of Invasive Alien Species (IAS)—the subset of alien species that have a negative environmental and/or socio-economic impact. Pathways refer to the fundamental processes that leads to the introduction of a species from one geographical location to another—marking the beginning of all alien species invasions. Increased knowledge of pathways is essential to help reduce the number of introductions and impacts of IAS and ultimately improve their management. Here we use the InvaCost database, a comprehensive repository on the global monetary impacts of IAS, combined with pathway data classified using the Convention on Biological Diversity (CBD) hierarchical classification and compiled from CABI Invasive Species Compendium, the Global Invasive Species Database (GISD) and the published literature to address five key points. Data were available for 478 individual IAS. For these, we found that both the total and annual average cost per species introduced through the ‘Stowaway’ (US$144.9bn; US$89.4m) and ‘Contaminant’ pathways (US$99.3bn; US$158.0m) were higher than species introduced primarily through the ‘Escape’ (US$87.4bn; US$25.4m) and ‘Release’ pathways (US$64.2bn; US$16.4m). Second, the recorded costs (both total and average) of species introduced unintentionally was higher than that from species introduced intentionally. Third, insects and mammals, respectively, accounted for the greatest proportion of the total cost of species introduced unintentionally and intentionally respectively, at least of the available records; ‘Stowaway’ had the highest recorded costs in Asia, Central America, North America and Diverse/Unspecified regions. Fourthly, the total cost of a species in a given location is not related to the year of first record of introduction, but time gaps might blur the true pattern. Finally, the total and average cost of IAS were not related to their number of introduction pathways. Although our findings are directly limited by the available data, they provide important material which can contribute to pathway priority measures, notably by complementing studies on pathways associated with ecologically harmful IAS. They also highlight the crucial need to fill the remaining data gaps—something that will be critical in prioritising limited management budgets to combat the current acceleration of species invasions.
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Sennikov A, Lazkov G. The first checklist of alien vascular plants of Kyrgyzstan, with new records and critical evaluation of earlier data. Contribution 2. Biodivers Data J 2022; 10:e80804. [PMID: 35437395 PMCID: PMC8971126 DOI: 10.3897/bdj.10.e80804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 03/09/2022] [Indexed: 11/27/2022] Open
Abstract
Background We continue the inventory of alien vascular plants of Kyrgyzstan, with emphasis on the time and pathways of introduction of the species and their current status in the territory. Each taxon is discussed in the context of plant invasions in Central Asia. This work is a further development of the preliminary checklist of alien plants of Kyrgyzstan, which was compiled for the Global Register of Introduced and Invasive Species in 2018. New information This contribution includes all alien species of Kyrgyzstan belonging to Solanaceae and Asphodelaceae and one species of Asteraceae. Physalisphiladelphicus (syn. P.ixocarpa) is reported for the first time from Central Asia, as new to Kazakhstan, Kyrgyzstan and Uzbekistan, thus marking a recent invasion with a variety of imported grain and seed material. The old records of P.ixocarpa from Uzbekistan are based on misidentified specimens of P.angulata. Physalisangulata is an old cotton immigrant in Central Asia, whose invasion started in the 1920s; it is excluded from the alien flora of Kyrgyzstan as registered in error on the basis of cultivated plants. Alkekengiofficinarum is an archaeophyte of the Neolithic period in Central Asia, formerly used for food, now strongly declining and largely casual in Kyrgyzstan. The only historical record of Physalisviscosa from Uzbekistan was based on a technical error and belongs to A.officinarum. Daturastramonium and Hyoscyamusniger were introduced as medicinal plants during the period of the Arabic invasion of Central Asia, by the 11th century. Daturainnoxia is a newly recorded casual alien, recently escaped from ornamental cultivation. Nicandraphysalodes is a casual alien, which was cultivated by Russian colonists in the early 20th century for culinary use and is currently used in ornamental cultivation. Hemerocallisfulva was a remnant of historical cultivation in the former Khanate of Buxoro, and its formerly established colonies are presumably extinct in the wild. Bidensfrondosa was seemingly introduced with contaminated forage and seed of American origin during the late Soviet period and started to spread in the period of independence; its invasion in the former USSR is analysed.
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Affiliation(s)
- Alexander Sennikov
- Komarov Botanical Institute, Saint-Petersburg, Russia Komarov Botanical Institute Saint-Petersburg Russia.,University of Helsinki, Helsinki, Finland University of Helsinki Helsinki Finland
| | - Georgy Lazkov
- Institute of Biology, Bishkek, Kyrgyzstan Institute of Biology Bishkek Kyrgyzstan
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Abstract
AbstractBiological invasions are increasingly recognized as one of the major threats to biodiversity. The Japanese raisin tree (Hovenia dulcis) is native to East Asia, however, in southeastern South America this species has become one of the most pervasive invaders. Hovenia dulcis has many biological characteristics that favor the process of invasion and few studies have indicated changes in the structure and composition of native plant communities where this species has become invader. Given the invasiveness shown in southeastern South America, our main goal was to identify the potentially suitable habitats for this invasive species at a global scale. In this sense, we modeled the potential distribution of H. dulcis along the terrestrial areas worldwide using an ensemble forecasting approach. Additionally, the percentage of overlapping biodiversity hotspot areas with the currently suitable areas for this species was calculated. Our results revealed that the current potential H. dulcis range is equivalent to 7.88% (12,719,365 km2) of the terrestrial area worldwide. For the future scenarios of climate change, the potential distribution area tends to have a small reduction. However, significant suitable areas were identified for H. dulcis range in the northern limits of the boreal distribution. Currently, around 17% of biodiversity hotspot areas overlap with the suitable areas for H. dulcis occurrence. In summary, given that the prevention is well-recognized as a more effective management action against invasive alien species, it is essential to implement policies to prevent H. dulcis introduction in suitable areas worldwide, as well as local population control, especially in biodiversity hotspots.
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Özenver N, Efferth M, Efferth T. Ethnopharmacology, phytochemistry, chemical ecology and invasion biology of Acanthus mollis L. JOURNAL OF ETHNOPHARMACOLOGY 2022; 285:114833. [PMID: 34785251 DOI: 10.1016/j.jep.2021.114833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Acanthus mollis L. (Bear's Breeches) is a wide-spread medicinal and ornamental plant and is particularly suited to exemplarily illustrate the diverse aspects of invasion biology by neophytes. Since ancient times, it has been a popular Mediterranean ornamental plant in horticulture and served as model for the decoration of column capitals in architecture. AIM OF THE STUDY In the present review, we aimed to give an overview about ethnopharmacology, phytochemistry, chemical ecology, and invasion biology of A. mollis. Thus, the importance of plantation cultivation in the presence of ecologically problematic species and environmental protection were emphasized. MATERIALS AND METHODS We conducted an extensive literature search via screening PubMed, Scopus, and Web of Science, in order to compile the data about A. mollis and its role on invasion biology and thereby attracting attention to the prominence of the horticultural and agricultural cultivation of plant species with a special focus on A. mollis as a model. RESULTS AND CONCLUSION Phytochemical analyses revealed secondary metabolites from the classes of flavonoids, phenols, phenylpropanoids, anthraquinones arylnaphthalene lignans, phytosterols and others. Extracts of A. mollis and isolated phytochemicals not only exert assorted activities including antioxidant, anti-inflammatory and neuroprotective in murine and human experimental models, but also act against plant parasites (bacteria, insects, mollusks, fungi), protecting the plant from microbial attack and herbivorous predators. A. mollis has been used in traditional medicine to treat dermatological ailments, gastrointestinal diseases, ulcers and even tumors. Nevertheless, the robustness and rapid growth of A. mollis as well as the global horticultural trade facilitated its invasion into fragile ecosystems of Australia, New Zealand, and several other spots around the globe in Northern Europe (Great Britain), Asia (China, India), South Africa, and South America (Argentina). The release of A. mollis from gardens into the wild represents a considerable danger as invasive species are threatening biodiversity and leading to the extinction of domestic plants in the long run. Likewise, the likelihood of other medicinal plants in terms of invasion biology are needed to be fully recognized and discussed.
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Affiliation(s)
- Nadire Özenver
- Johannes Gutenberg University, Institute of Pharmaceutical and Biomedical Sciences, Department of Pharmaceutical Biology, 55128, Mainz, Germany; Hacettepe University, Faculty of Pharmacy, Department of Pharmacognosy, 06100, Ankara, Turkey.
| | - Monika Efferth
- Johannes Gutenberg University, Institute of Pharmaceutical and Biomedical Sciences, Department of Pharmaceutical Biology, 55128, Mainz, Germany.
| | - Thomas Efferth
- Johannes Gutenberg University, Institute of Pharmaceutical and Biomedical Sciences, Department of Pharmaceutical Biology, 55128, Mainz, Germany.
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Abstract
AbstractExotic plant invasions are considered one of the major threats to biodiversity causing important impacts at the population, community, and ecosystem levels. Understanding the drivers of plant invasions across multiple spatial and temporal scales often requires a landscape approach. The effect of landscape composition on biological invasion has been extensively studied, whereas landscape configuration effects were seldom considered or the analyses were limited to single species. Here, we aimed to analyze how the expansion of urban and agricultural areas can affect exotic species richness (both neophytes and archaeophytes) at three spatial scales, namely regional (scale: 37.5 km2), landscape (scale: 7.1 km2) and local (scale: 100 m2). We considered the possible contribution of urban and agricultural areas both in terms of composition (i.e. habitat cover) and configuration (i.e. shape complexity of patches). First, we found that increasing urbanization coupled with high shape complexity of urban elements were major drivers of both neophyte and archaeophyte invasions across heterogeneous landscapes. In particular, shape complexity seemed to be a key driver of plant invasions at large spatial scale, whereas the type of recipient habitat and urban cover determined the exotic success at the patch level. Second, archaeophytes were also affected by agriculture land use, i.e. agricultural patches shape complexity increased their spread at both regional and landscape scales. High shape complexity of highly disturbed habitats is expected to increase the exchange surface that exotic plant use to spread their propagules across the landscape mosaics. Our findings suggest that urban planning aimed at curbing urban fragmentation by both reducing shape complexity and diffuse urban sprawl might greatly improve the resistance of landscapes to biological invasions.
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Seitz B, Buchholz S, Kowarik I, Herrmann J, Neuerburg L, Wendler J, Winker L, Egerer M. Land sharing between cultivated and wild plants: urban gardens as hotspots for plant diversity in cities. Urban Ecosyst 2022. [DOI: 10.1007/s11252-021-01198-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
AbstractPlant communities in urban gardens consist of cultivated species, including ornamentals and food crops, and wild growing species. Yet it remains unclear what significance urban gardens have for the plant diversity in cities and how the diversity of cultivated and wild plants depends on the level of urbanization. We sampled plants growing within 18 community gardens in Berlin, Germany to investigate the species diversity of cultivated and wild plants. We tested species diversity in relation to local and landscape-scale imperviousness as a measure of urbanity, and we investigated the relationship between cultivated and wild plant species within the gardens. We found that numbers of wild and cultivated plant species in gardens are high – especially of wild plant species – independent of landscape-scale imperviousness. This suggests that all community gardens, regardless of their urban contexts, can be important habitats for plant diversity along with their role in urban food provision. However, the number of all species was negatively predicted by local garden scale imperviousness, suggesting an opportunity to reduce imperviousness and create more habitats for plants at the garden scale. Finally, we found a positive relationship between the number of cultivated and wild growing species, which emphasizes that community gardens present a unique urban ecosystem where land sharing between cultivated and wild flora can transpire. As the urban agriculture movement is flourishing worldwide with gardens continuously and spontaneously arising and dissipating due to urban densification, such botanical investigations can support the argument that gardens are places for the reconciliation of plant conservation and food production.
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Dimitrakopoulos PG, Koukoulas S, Michelaki C, Galanidis A. Anthropogenic and environmental determinants of alien plant species spatial distribution on an island scale. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 805:150314. [PMID: 34543797 DOI: 10.1016/j.scitotenv.2021.150314] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/17/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Mediterranean islands are considered especially vulnerable to biological invasions by alien plants. However, there is a lack of studies on island scale regarding the factors that determine alien plant's spatial distribution, and the way they affect invasion process. A roadside survey of alien plant species was conducted on Lesvos, the 8th largest island in Mediterranean basin. Data on species counts and explanatory variables were aggregated to a 1 sq. km vector grid and brought together into a single GIS layer. Alien species counts were modelled by using a Negative-binomial model while a Generalised Additive Model was used to examine possible non-linear relationships to the predictors by using splines. A subset of significant factors, related both to human activities and the environment, shaped the spatial distribution of aliens and influenced, in various ways, their future invasion outcome. Transformed areas with high levels of anthropogenic pressures and disturbances, including high population numbers, dense road network, ports, and intensive land use, as is the case for coastal zones, promoted the presence of alien species. Contrary, modified areas, such as grazed lands, seemed to restrict alien species occurrences, possibly due to the long grazing history these areas present, a regime in which aliens are not adapted. Alien plants presence was positively associated with high levels of NPP, diversity of geological substrates, and a west-facing aspect. Anthropogenic determinants of alien spatial patterns were primarily connected to increased propagule pressure, whereas environmental factors demonstrated the preference of alien plants for resource-rich environments.
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Affiliation(s)
- Panayiotis G Dimitrakopoulos
- Biodiversity Conservation Laboratory, Department of Environment, University of the Aegean, 81100 Mytilene, Lesvos, Greece.
| | - Sotirios Koukoulas
- Department of Geography, University of the Aegean, 81100 Mytilene, Lesvos, Greece
| | - Chrysanthi Michelaki
- Biodiversity Conservation Laboratory, Department of Environment, University of the Aegean, 81100 Mytilene, Lesvos, Greece
| | - Alexandros Galanidis
- Biodiversity Conservation Laboratory, Department of Environment, University of the Aegean, 81100 Mytilene, Lesvos, Greece
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Kozhin M, Sennikov A. New records in non-native vascular plants of Russian Lapland. Biodivers Data J 2022; 10:e78166. [PMID: 35068982 PMCID: PMC8758643 DOI: 10.3897/bdj.10.e78166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/21/2021] [Indexed: 11/25/2022] Open
Abstract
Background The non-native vascular plants of Murmansk Region (European Russia) are under active investigation towards the compilation of the first complete checklist. This work is part of the project 'Flora of Russian Lapland', which ultimately aims at the complete inventory of the taxonomy, distribution and status of vascular plant species in Murmansk Region, based on the comprehensive database of herbarium specimens, field observations and literature. New information New territory-level records of non-native vascular plants emerged during our inventory of herbarium collections and recent fieldwork. Fourteen species (Anthemisruthenica, Aruncusdioicus, Bromuscommutatus, Chaerophyllumhirsutum, Galegaorientalis, Geumaleppicum, Leonurusquinquelobatus, Lepidiumdensiflorum, Levisticumofficinale, Myrrhisodorata, Phleumphleoides, Prunusarmeniaca, Rorippasylvestris, Seneciovernalis) are reported as new to Murmansk Region. The historical occurrences of alien plants appeared in the territory largely as contaminants (of seed or forage). In particular, Rorippasylvestris and Seneciovernalis arrived with the forage imported during the Second World War. All recent occurrences originated by escape from confinement (ornamental purposes, horticulture, agriculture), reflecting a high diversity of the modern assortment of cultivated plants in commerce and private gardens. Regarding the invasion status, five alien species are considered casual and eight species are treated as locally established or persisting (for uncertain time). Only one species, Galegaorientalis, is considered naturalised and capable of further spreading in the territory, although without invasive potential.
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Alien flora of Oman: invasion status, taxonomic composition, habitats, origin, and pathways of introduction. Biol Invasions 2022. [DOI: 10.1007/s10530-021-02711-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
AbstractWe present the first inventory and status assessment of the alien flora of Oman, mainly based on field data collected from 1998 to 2021. The study provides (i) a comprehensive account of alien vascular plant species occurring in the wild in Oman, with information on their taxonomic composition. For each species information is given on (ii) invasion status (casual, naturalized or invasive), biogeography, habitat and life-form characteristics, and pathways of introduction. Further, we (iii) explain the differences in the alien species composition in different parts of the country, and (iv) analyse the drivers of plant invasions in Oman. Out of the 111 alien species reported (7.7% of the total Oman vascular flora), 34 species are casuals and 77 naturalized; of the latter seven are considered invasive. The moderate number of alien plant species is likely a result of the country’s arid climate, with extremely high summer temperatures and low annual precipitation in most of its area, and the relatively long isolation of the country. The families richest in alien plant species are Fabaceae (17 species), Asteraceae (14 species) and Poaceae (12 species). More alien plants were found in northern Oman (82 species) than in southern Oman (60 species), and very few species are recorded from the central desert (7 species). The main habitats colonized were man-made habitats, either ruderal or agricultural. Most species alien to Oman are native to South America (49 species) or North America (43 species). This inventory provides a knowledge base for developing a national management strategy for alien vascular plants in Oman.
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Cucu AA, Baci GM, Dezsi Ş, Nap ME, Beteg FI, Bonta V, Bobiş O, Caprio E, Dezmirean DS. New Approaches on Japanese Knotweed ( Fallopia japonica) Bioactive Compounds and Their Potential of Pharmacological and Beekeeping Activities: Challenges and Future Directions. PLANTS (BASEL, SWITZERLAND) 2021; 10:2621. [PMID: 34961091 PMCID: PMC8705504 DOI: 10.3390/plants10122621] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/14/2021] [Accepted: 11/24/2021] [Indexed: 05/17/2023]
Abstract
Known especially for its negative ecological impact, Fallopia japonica (Japanese knotweed) is now considered one of the most invasive species. Nevertheless, its chemical composition has shown, beyond doubt, some high biological active compounds that can be a source of valuable pharmacological potential for the enhancement of human health. In this direction, resveratrol, emodin or polydatin, to name a few, have been extensively studied to demonstrate the beneficial effects on animals and humans. Thus, by taking into consideration the recent advances in the study of Japanese knotweed and its phytochemical constituents, the aim of this article is to provide an overview on the high therapeutic potential, underlining its antioxidant, antimicrobial, anti-inflammatory and anticancer effects, among the most important ones. Moreover, we describe some future directions for reducing the negative impact of Fallopia japonica by using the plant for its beekeeping properties in providing a distinct honey type that incorporates most of its bioactive compounds, with the same health-promoting properties.
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Affiliation(s)
- Alexandra-Antonia Cucu
- Faculty of Animal Science and Biotechnology, University of Animal Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (A.-A.C.); (G.-M.B.); (V.B.); (D.S.D.)
| | - Gabriela-Maria Baci
- Faculty of Animal Science and Biotechnology, University of Animal Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (A.-A.C.); (G.-M.B.); (V.B.); (D.S.D.)
| | - Ştefan Dezsi
- Faculty of Geography, Babeş-Bolyai University, 400084 Cluj-Napoca, Romania
| | - Mircea-Emil Nap
- Faculty of Geodesy, Technical University of Civil Engineering Bucharest, 020396 Bucharest, Romania;
- Faculty of Horticulture, University of Animal Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Florin Ioan Beteg
- Faculty of Veterinary Medicine, University of Animal Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania;
| | - Victoriţa Bonta
- Faculty of Animal Science and Biotechnology, University of Animal Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (A.-A.C.); (G.-M.B.); (V.B.); (D.S.D.)
| | - Otilia Bobiş
- Faculty of Animal Science and Biotechnology, University of Animal Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (A.-A.C.); (G.-M.B.); (V.B.); (D.S.D.)
| | - Emilio Caprio
- Department of Agricultural Sciences, University of Naples “Federico II”, Via Università, Portici, 100-80055 Naples, Italy;
| | - Daniel Severus Dezmirean
- Faculty of Animal Science and Biotechnology, University of Animal Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (A.-A.C.); (G.-M.B.); (V.B.); (D.S.D.)
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Fernández-Palacios JM, Kreft H, Irl SDH, Norder S, Ah-Peng C, Borges PAV, Burns KC, de Nascimento L, Meyer JY, Montes E, Drake DR. Scientists' warning - The outstanding biodiversity of islands is in peril. Glob Ecol Conserv 2021; 31:e01847. [PMID: 34761079 PMCID: PMC8556160 DOI: 10.1016/j.gecco.2021.e01847] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/26/2021] [Accepted: 09/26/2021] [Indexed: 11/30/2022] Open
Abstract
Despite islands contributing only 6.7% of land surface area, they harbor ~20% of the Earth’s biodiversity, but unfortunately also ~50% of the threatened species and 75% of the known extinctions since the European expansion around the globe. Due to their geological and geographic history and characteristics, islands act simultaneously as cradles of evolutionary diversity and museums of formerly widespread lineages—elements that permit islands to achieve an outstanding endemicity. Nevertheless, the majority of these endemic species are inherently vulnerable due to genetic and demographic factors linked with the way islands are colonized. Here, we stress the great variation of islands in their physical geography (area, isolation, altitude, latitude) and history (age, human colonization, human density). We provide examples of some of the most species rich and iconic insular radiations. Next, we analyze the natural vulnerability of the insular biota, linked to genetic and demographic factors as a result of founder events as well as the typically small population sizes of many island species. We note that, whereas evolution toward island syndromes (including size shifts, derived insular woodiness, altered dispersal ability, loss of defense traits, reduction in clutch size) might have improved the ability of species to thrive under natural conditions on islands, it has simultaneously made island biota disproportionately vulnerable to anthropogenic pressures such as habitat loss, overexploitation, invasive species, and climate change. This has led to the documented extinction of at least 800 insular species in the past 500 years, in addition to the many that had already gone extinct following the arrival of first human colonists on islands in prehistoric times. Finally, we summarize current scientific knowledge on the ongoing biodiversity loss on islands worldwide and express our serious concern that the current trajectory will continue to decimate the unique and irreplaceable natural heritage of the world’s islands. We conclude that drastic actions are urgently needed to bend the curve of the alarming rates of island biodiversity loss.
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Affiliation(s)
- José María Fernández-Palacios
- Island Ecology and Biogeography Group, Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), 38200 La Laguna, Canary Islands, Spain
| | - Holger Kreft
- Biodiversity, Macroecology & Biogeography, University of Göttingen, 37077 Göttingen, Germany
| | - Severin D H Irl
- Biogeography and Biodiversity Lab, Institute of Physical Geography, Goethe-University, 60438 Frankfurt, Frankfurt am Main, Germany
| | - Sietze Norder
- Leiden University Centre for Linguistics, 2300 RA Leiden, Netherlands
| | - Claudine Ah-Peng
- UMR PVBMT, Université de La Réunion, 97410 Saint-Pierre, La Réunion, France
| | - Paulo A V Borges
- Centre for Ecology, Evolution and Environmental Changes (cE3c)/Azorean Biodiversity Group and Universidade dos Açores, Faculty of Agriculture and Environment, 9700-042 Angra do Heroísmo, Açores, Portugal
| | - Kevin C Burns
- School of Biological Sciences, Victoria University of Wellington, 6140 Wellington, New Zealand
| | - Lea de Nascimento
- Island Ecology and Biogeography Group, Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), 38200 La Laguna, Canary Islands, Spain
| | - Jean-Yves Meyer
- Délégation à la Recherche, Government of French Polynesia, 98713 Papeete, French Polynesia
| | - Elba Montes
- Department of Zoology, Faculty of Biological Sciences, University of Valencia, 46100 Burjassot, Valencia, Spain
| | - Donald R Drake
- School of Life Sciences, University of Hawai]i, 96822 Honolulu, Hawai]i, USA
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Ljubojević M, Tomić M, Simikić M, Savin L, Narandžić T, Pušić M, Grubač M, Marinković M. Koelreuteria paniculata invasiveness, yielding capacity and harvest date influence on biodiesel feedstock properties. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 295:113102. [PMID: 34157540 DOI: 10.1016/j.jenvman.2021.113102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/28/2021] [Accepted: 06/15/2021] [Indexed: 05/27/2023]
Abstract
Due to Koelreuteria paniculata Laxm., high abundance in Novi Sad (Serbia) and previously confirmed biodiesel feedstock suitability, this study aimed to assess generative potential and yield, assess K. paniculata invasive risk, and investigate the influence of harvesting periods on the oil content and quality. Fifty-five specimens present in the Novi Sad inner-city core exhibited very high scores in the conducted invasiveness risk assessment (score 35/39). Determined good overall adaptability, growth and development, vitality and decorativeness of K. paniculata specimens, as well as the absence of phytopathological and entomological damages, due to lack of natural enemies, provided this species high unhindered yielding. The majority of investigated trees reached 5-10 m in height and canopy volumes from 10.1 to 70 m3, with an estimated more than 130 000-700 000 seeds produced per canopy. Seeds from one representative specimen were collected on different harvesting dates, at the end of August, September and October of 2019, and analyzed for oil content and quality for biodiesel production. With the average oil percentage of 22.8 w%, determined in the representative specimen, investigated 55 seed-bearing K. paniculata trees merely in the inner city core of Novi Sad, could produce 115 kg of oil. Since oil properties (<1 w% of free fatty acids and the acid number <2 mgKOH.g-1) and fatty acid profile (high content of monounsaturated fatty acids ≈72 w%) fit the requirements set in EN14214 biodiesel standard, regardless of the harvest date, harvest season can be extended to at least three months without compromising the oil quality for biodiesel production. Thus, intrinsic disservice of K. paniculata - high seed yielding can be shifted into a novel ecosystem service - quality biodiesel production. Aiming to avoid viable seed deposition in the ground and formation of the invasive seed bank, early August harvest can be recommended.
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Affiliation(s)
- Mirjana Ljubojević
- University of Novi Sad, Faculty of Agriculture, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia.
| | - Milan Tomić
- University of Novi Sad, Faculty of Agriculture, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia.
| | - Mirko Simikić
- University of Novi Sad, Faculty of Agriculture, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia.
| | - Lazar Savin
- University of Novi Sad, Faculty of Agriculture, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia.
| | - Tijana Narandžić
- University of Novi Sad, Faculty of Agriculture, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia.
| | - Magdalena Pušić
- University of Novi Sad, Faculty of Agriculture, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia.
| | - Milica Grubač
- University of Novi Sad, Faculty of Agriculture, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia.
| | - Marina Marinković
- University of Novi Sad, Faculty of Agriculture, Trg Dositeja Obradovića 8, 21000, Novi Sad, Serbia.
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Banerjee AK, Prajapati J, Bhowmick AR, Huang Y, Mukherjee A. Different factors influence naturalization and invasion processes - A case study of Indian alien flora provides management insights. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 294:113054. [PMID: 34144321 DOI: 10.1016/j.jenvman.2021.113054] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 06/12/2023]
Abstract
Why do some alien plants become naturalized, and some naturalized become invasive? Do different factors determine successful naturalization and invasion? Most, if not all, studies addressing these questions have focused either on the part of the invasion continuum or a specific group of alien species. In this study, we aimed to answer these questions for alien plant invasion in India by considering 13 variables related to biogeography, introduction pathways, uses, functional traits, and distribution for 715 species belonging to three invasion categories. We deciphered the variables' influence on successful naturalization and invasion through a structural equation modeling framework implemented as path analyses and translated the findings to management implications. Our study revealed that the invasive aliens had significantly higher naturalized range size, a greater number of uses, and higher specific leaf area than the naturalized and casual aliens. Path analyses revealed that the native and naturalized range sizes, number of uses, and growth form had a direct influence on naturalization success, whereas longer minimum residence time (MRT) facilitated overcoming of the dispersal barrier for naturalized species. Invasion success was directly influenced by the MRT and number of uses, which were further influenced by the number of native congeners and the naturalized range size, respectively. Plant growth forms indirectly influenced invasion success, whereas the native range sizes had indirect effects on successful naturalization and invasion by strongly influencing the size of the naturalized range. Our findings suggested considering species biogeography in the formulation of quarantine measures, imposing policies to discourage the uses and spread of alien plants within the country, and implementing early control measures, especially for the naturalized aliens. The curated dataset used in this study would also provide a ready reference for future research and decision-making towards the management of alien plant invasion in the country.
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Affiliation(s)
- Achyut Kumar Banerjee
- School of Life Sciences, Sun Yat-sen University, 135 Xingangxi Road, Guangzhou, Guangdong, 510275, China.
| | - Jyoti Prajapati
- Department of Mathematics, Institute of Chemical Technology, Mumbai, Maharashtra, 400019, India
| | - Amiya Ranjan Bhowmick
- Department of Mathematics, Institute of Chemical Technology, Mumbai, Maharashtra, 400019, India
| | - Yelin Huang
- School of Life Sciences, Sun Yat-sen University, 135 Xingangxi Road, Guangzhou, Guangdong, 510275, China
| | - Abhishek Mukherjee
- Agricultural and Ecological Research Unit, Indian Statistical Institute, Giridih, Jharkhand, 815301, India
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Bonnamour A, Gippet JMW, Bertelsmeier C. Insect and plant invasions follow two waves of globalisation. Ecol Lett 2021; 24:2418-2426. [PMID: 34420251 PMCID: PMC9290749 DOI: 10.1111/ele.13863] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/10/2021] [Accepted: 07/27/2021] [Indexed: 01/01/2023]
Abstract
Globalisation has facilitated the spread of alien species, and some of them have significant impacts on biodiversity and human societies. It is commonly thought that biological invasions have accelerated continuously over the last centuries, following increasing global trade. However, the world experienced two distinct waves of globalisation (~1820–1914, 1960‐present), and it remains unclear whether these two waves have influenced invasion dynamics of many species. To test this, we built a statistical model that accounted for temporal variations in sampling effort. We found that insect and plant invasion rates did not continuously increase over the past centuries but greatly fluctuated following the two globalisation waves. Our findings challenge the idea of a continuous acceleration of alien species introductions and highlight the association between temporal variations in trade openness and biological invasion dynamics. More generally, this emphasises the urgency of better understanding the subtleties of socio‐economic drivers to improve predictions of future invasions.
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Affiliation(s)
- Aymeric Bonnamour
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Jérôme M W Gippet
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Cleo Bertelsmeier
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
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