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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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2
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Kumar V, Goyal N, Prasad A, Babu S, Khare K, Yadav G. Quantification of pollen viability in Lantana camara by digital holographic microscopy. QUANTITATIVE PLANT BIOLOGY 2023; 4:e7. [PMID: 37529296 PMCID: PMC10388712 DOI: 10.1017/qpb.2023.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 05/19/2023] [Accepted: 05/21/2023] [Indexed: 08/03/2023]
Abstract
Pollen grains represent the male gametes of seed plants and their viability is critical for sexual reproduction in the plant life cycle. Palynology and viability studies have traditionally been used to address a range of botanical, ecological and geological questions, but recent work has revealed the importance of pollen viability in invasion biology as well. Here, we report an efficient visual method for assessing the viability of pollen using digital holographic microscopy (DHM). Imaging data reveal that quantitative phase information provided by the technique can be correlated with viability as indicated by the outcome of the colorimetric test. We successfully test this method on pollen grains of Lantana camara, a well-known alien invasive plant in the tropical world. Our results show that pollen viability may be assessed accurately without the usual staining procedure and suggest potential applications of the DHM methodology to a number of emerging areas in plant science.
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Affiliation(s)
- Vipin Kumar
- Biodiversity Informatics Laboratory, National Institute of Plant Genome Research, New Delhi, India
| | - Nishant Goyal
- Department of Physics, Indian Institute of Technology Delhi, New Delhi, India
| | - Abhishek Prasad
- Biodiversity Informatics Laboratory, National Institute of Plant Genome Research, New Delhi, India
| | - Suresh Babu
- School of Human Ecology, Dr. B. R. Ambedkar University Delhi, New Delhi, India
| | - Kedar Khare
- Optics and Photonics Centre, Indian Institute of Technology Delhi, New Delhi, India
| | - Gitanjali Yadav
- Biodiversity Informatics Laboratory, National Institute of Plant Genome Research, New Delhi, India
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3
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Daly EZ, Chabrerie O, Massol F, Facon B, Hess MC, Tasiemski A, Grandjean F, Chauvat M, Viard F, Forey E, Folcher L, Buisson E, Boivin T, Baltora‐Rosset S, Ulmer R, Gibert P, Thiébaut G, Pantel JH, Heger T, Richardson DM, Renault D. A synthesis of biological invasion hypotheses associated with the introduction–naturalisation–invasion continuum. OIKOS 2023. [DOI: 10.1111/oik.09645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Ella Z. Daly
- Univ. of Rennes, CNRS, ECOBIO (Ecosystèmes, Biodiversité, Evolution), UMR 6553 Rennes France
| | - Olivier Chabrerie
- Univ. de Picardie Jules Verne, UMR 7058 CNRS EDYSAN Amiens Cedex 1 France
| | - Francois Massol
- Univ. Lille, CNRS, Inserm, CHU Lille, Inst. Pasteur de Lille, U1019 – UMR 9017 – CIIL – Center for Infection and Immunity of Lille Lille France
| | - Benoit Facon
- CBGP, INRAE, CIRAD, IRD, Montpellier Institut Agro, Univ. Montpellier Montpellier France
| | - Manon C.M. Hess
- Inst. Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale (IMBE), UMR: Aix Marseille Univ., Avignon Université, CNRS, IRD France
- Inst. de Recherche pour la Conservation des zones Humides Méditerranéennes Tour du Valat, Le Sambuc Arles France
| | - Aurélie Tasiemski
- Univ. Lille, CNRS, Inserm, CHU Lille, Inst. Pasteur de Lille, U1019 – UMR 9017 – CIIL – Center for Infection and Immunity of Lille Lille France
| | - Frédéric Grandjean
- Univ. de Poitiers, UMR CNRS 7267 EBI‐Ecologie et Biologie des Interactions, équipe EES Poitiers Cedex 09 France
| | | | | | - Estelle Forey
- Normandie Univ., UNIROUEN, INRAE, USC ECODIV Rouen France
| | - Laurent Folcher
- ANSES – Agence Nationale de Sécurité Sanitaire de l'Alimentation, de l'Environnement et du Travail, Laboratoire de la Santé des Végétaux – Unité de Nématologie Le Rheu France
| | - Elise Buisson
- Inst. Méditerranéen de Biodiversité et d'Ecologie Marine et Continentale (IMBE), UMR: Aix Marseille Univ., Avignon Université, CNRS, IRD France
| | - Thomas Boivin
- INRAE, UR629 Écologie des Forêts Méditerranéennes, Centre de Recherche Provence‐Alpes‐Côte d'Azur Avignon France
| | | | - Romain Ulmer
- Univ. de Picardie Jules Verne, UMR 7058 CNRS EDYSAN Amiens Cedex 1 France
| | - Patricia Gibert
- UMR 5558 CNRS – Univ. Claude Bernard Lyon 1, Biométrie et Biologie Evolutive, Bât. Gregor Mendel Villeurbanne Cedex France
| | - Gabrielle Thiébaut
- Univ. of Rennes, CNRS, ECOBIO (Ecosystèmes, Biodiversité, Evolution), UMR 6553 Rennes France
| | - Jelena H. Pantel
- Ecological Modelling, Faculty of Biology, Univ. of Duisburg‐Essen Essen Germany
| | - Tina Heger
- Leibniz Inst. of Freshwater Ecology and Inland Fisheries (IGB) Berlin Germany
- Technical Univ. of Munich, Restoration Ecology Freising Germany
| | - David M. Richardson
- Centre for Invasion Biology, Dept. Botany & Zoology, Stellenbosch University Stellenbosch South Africa
- Inst. of Botany, Czech Academy of Sciences Průhonice Czech Republic
| | - David Renault
- Univ. of Rennes, CNRS, ECOBIO (Ecosystèmes, Biodiversité, Evolution), UMR 6553 Rennes France
- Inst. Universitaire de France Paris Cedex 05 France
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4
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Pollination and reproduction enhance the invasive potential of an early invader: the case of Lythrum salicaria (purple loosetrife) in South Africa. Biol Invasions 2021. [DOI: 10.1007/s10530-021-02549-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Effect of cold stratification on seed germination in Solidago × niederederi ( Asteraceae) and its parental species. Biologia (Bratisl) 2018; 73:945-950. [PMID: 30310238 PMCID: PMC6153560 DOI: 10.2478/s11756-018-0113-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 08/17/2018] [Indexed: 12/04/2022]
Abstract
In this study, we investigated the influence of cold stratification on seed germination in S. × niederederi, a hybrid between the North American S. canadensis and the European S. virgaurea, using fruit samples collected in 2016 in Poland. We aimed to test the hypothesis that the low temperature exposure decreases the final percentage and speed of seed germination in the hybrid and its parental species. For each species, sets of 100 achenes in three replications were mixed with dry sand and stored in Petri dishes in darkness for 12 weeks, at −18 °C and + 4 °C, and + 25 °C. The seeds were incubated for 21 d at room temperature (+25 °C), under the 12 h photoperiod (630 lx). We showed a lack of significant differences in: (i) the final percentage of germinated seeds of studied species stored at the same conditions, (ii) the final percentage of germinated seeds between the applied stratification conditions in the hybrid and its parental species, and (iii) the mean values of Timson’s index, mean germination time, and coefficient of velocity of germination between the stratification conditions in each species. The statistically significant inter-specific differences in the mean germination time parameter after the +25 °C treatment suggest that the seeds of S. × niederederi are able to germinate faster than the seeds of its parental species. However, to improve our knowledge of naturalization and invasion abilities of S. × niederederi by sexual reproduction, the seed germination and seedling survival of the hybrid should be tested in the field.
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6
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Hybridization can facilitate species invasions, even without enhancing local adaptation. Proc Natl Acad Sci U S A 2018; 113:10210-4. [PMID: 27601582 DOI: 10.1073/pnas.1605626113] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The founding population in most new species introductions, or at the leading edge of an ongoing invasion, is likely to be small. Severe Allee effects-reductions in individual fitness at low population density-may then result in a failure of the species to colonize, even if the habitat could support a much larger population. Using a simulation model for plant populations that incorporates demography, mating systems, quantitative genetics, and pollinators, we show that Allee effects can potentially be overcome by transient hybridization with a resident species or an earlier colonizer. This mechanism does not require the invocation of adaptive changes usually attributed to invasions following hybridization. We verify our result in a case study of sequential invasions by two plant species where the outcrosser Cakile maritima has replaced an earlier, inbreeding, colonizer Cakile edentula (Brassicaceae). Observed historical rates of replacement are consistent with model predictions from hybrid-alleviated Allee effects in outcrossers, although other causes cannot be ruled out.
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7
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Lurie MH, Barton KE, Daehler CC. Pre-damage biomass allocation and not invasiveness predicts tolerance to damage in seedlings of woody species in Hawaii. Ecology 2017; 98:3011-3021. [DOI: 10.1002/ecy.2031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 08/10/2017] [Accepted: 09/11/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Matthew H. Lurie
- Department of Botany; University of Hawai'i at Mānoa; 3190 Maile Way Room 101 Honolulu, Hawai'i 96822 USA
| | - Kasey E. Barton
- Department of Botany; University of Hawai'i at Mānoa; 3190 Maile Way Room 101 Honolulu, Hawai'i 96822 USA
| | - Curtis C. Daehler
- Department of Botany; University of Hawai'i at Mānoa; 3190 Maile Way Room 101 Honolulu, Hawai'i 96822 USA
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8
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Lavoie C, Joly S, Bergeron A, Guay G, Groeneveld E. Explaining naturalization and invasiveness: new insights from historical ornamental plant catalogs. Ecol Evol 2016; 6:7188-7198. [PMID: 28725391 PMCID: PMC5513274 DOI: 10.1002/ece3.2471] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 08/16/2016] [Accepted: 08/18/2016] [Indexed: 11/29/2022] Open
Abstract
We identified plant attributes associated with naturalization and invasiveness using century‐old ornamental plant catalogs from Québec (Canada). We tested the hypothesis that naturalization is determined by fewer factors than invasiveness, as the latter also requires dispersal, which introduces additional complexity. The approach we used took into account not only plant attributes as explanatory factors, but also propagule pressure, while accounting for phylogenetic relationships among species. Museum collections were used, in combination with scientific journal databases, to assess invasiveness. Particular attention was given to species that never escaped from gardens and thus represent cases of “failed” invasions. Naturalization in cold‐temperate environments is determined by fewer factors than invasion, but only if phylogenetic links between species are taken into account, highlighting the importance of phylogenetic tools for analyzing species pools not resulting from a random selection of taxa. Hardiness is the main factor explaining naturalization in Québec. Invasion requires dispersal, as shown by three significant variables associated with the spread of diaspores in the invasiveness model (seed weight, hydrochory, number of seed dispersal modes). Plants that are not cold‐hardy are likely to disappear from the market or nature, but the disappearance phenomenon is more complex, involving also seed dispersal abilities and propagule pressure. Factors contributing to naturalization or invasiveness may differ greatly between regions. Differences are due in part to the plant traits used in the models and the methodology. However, this study, conducted in a cold‐temperate region, sheds new light on what is likely a context (climatic)‐dependant phenomenon.
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Affiliation(s)
- Claude Lavoie
- École Supérieure d'Aménagement du Territoire et de Développement Régional and Centre de la Science de la Biodiversité du Québec Université Laval Québec City QC Canada
| | - Simon Joly
- Institut de Recherche en Biologie Végétale Université de Montréal Montréal QC Canada.,Jardin Botanique de Montréal Montréal QC Canada
| | - Alexandre Bergeron
- Institut de Recherche en Biologie Végétale Université de Montréal Montréal QC Canada
| | - Geneviève Guay
- École Supérieure d'Aménagement du Territoire et de Développement Régional and Centre de la Science de la Biodiversité du Québec Université Laval Québec City QC Canada
| | - Elisabeth Groeneveld
- École Supérieure d'Aménagement du Territoire et de Développement Régional and Centre de la Science de la Biodiversité du Québec Université Laval Québec City QC Canada
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9
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Maruyama PK, Vizentin-Bugoni J, Sonne J, Martín González AM, Schleuning M, Araujo AC, Baquero AC, Cardona J, Cardona P, Cotton PA, Kohler G, Lara C, Malucelli T, Marín-Gómez OH, Ollerton J, Rui AM, Timmermann A, Varassin IG, Zanata TB, Rahbek C, Sazima M, Dalsgaard B. The integration of alien plants in mutualistic plant-hummingbird networks across the Americas: the importance of species traits and insularity. DIVERS DISTRIB 2016. [DOI: 10.1111/ddi.12434] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Pietro K. Maruyama
- Programa de Pós-Graduação em Ecologia; Universidade Estadual de Campinas (Unicamp); Cx. Postal 6109 CEP: 13083-970 Campinas SP Brasil
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Universitetsparken 15 DK-2100 Copenhagen Ø Denmark
- Departamento de Biologia Vegetal; Instituto de Biologia; Universidade Estadual de Campinas (Unicamp); Cx. Postal 6109 CEP: 13083-970 Campinas SP Brasil
| | - Jeferson Vizentin-Bugoni
- Programa de Pós-Graduação em Ecologia; Universidade Estadual de Campinas (Unicamp); Cx. Postal 6109 CEP: 13083-970 Campinas SP Brasil
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Universitetsparken 15 DK-2100 Copenhagen Ø Denmark
| | - Jesper Sonne
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Universitetsparken 15 DK-2100 Copenhagen Ø Denmark
| | - Ana M. Martín González
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Universitetsparken 15 DK-2100 Copenhagen Ø Denmark
- Pacific Ecoinformatics and Computational Ecology Lab; 1604 McGee Ave 94703 Berkeley CA USA
| | - Matthias Schleuning
- Senckenberg Biodiversity and Climate Research Centre (BiK-F); Senckenberganlage 25 60325 Frankfurt (Main) Germany
| | - Andréa C. Araujo
- Centro de Ciências Biológicas e da Saúde; Universidade Federal de Mato Grosso do Sul; 79070-900 Campo Grande Mato Grosso do Sul Brasil
| | - Andrea C. Baquero
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Universitetsparken 15 DK-2100 Copenhagen Ø Denmark
| | - Juliana Cardona
- Grupo de Biodiversidad y Educación Ambiental (BIOEDUQ); Programa de Licenciatura en Biología y Educación Ambiental; Universidad del Quindío; A.A. 460. Armenia Quindío Colombia
| | - Paola Cardona
- Grupo de Biodiversidad y Educación Ambiental (BIOEDUQ); Programa de Licenciatura en Biología y Educación Ambiental; Universidad del Quindío; A.A. 460. Armenia Quindío Colombia
| | - Peter A. Cotton
- Marine Biology & Ecology Research Centre; Plymouth University; Plymouth PL4 8AA UK
| | - Glauco Kohler
- Instituto Nacional de Pesquisas da Amazônia; Av. André Araújo 2936 Petrópolis CEP 69080-971 Manaus Amazonas Brasil
| | - Carlos Lara
- Centro de Investigación en Ciencias Biológicas; Universidad Autónoma de Tlaxcala; Km 10.5 Autopista Tlaxcala-San Martín Texmelucan San Felipe Ixtacuixtla 90120 Tlaxcala México
| | - Tiago Malucelli
- Laboratório de Ecologia Vegetal; Departamento de Botânica; Universidade Federal do Paraná; 81531-980 Curitiba Paraná Brasil
| | - Oscar Humberto Marín-Gómez
- Instituto de Ciencias Naturales; Universidad Nacional de Colombia; Apartado 7495 Bogotá Colombia
- Instituto de Ecología, A.C.; Carretera Antigua a Coatepec 351 El Haya Xalapa Veracruz 91070 México
| | - Jeff Ollerton
- Environment Research Group; School of Science and Technology; University of Northampton; Avenue Campus Northampton NN2 6JD UK
| | - Ana M. Rui
- Departamento de Ecologia, Zoologia e Genética; Instituto de Biologia; Universidade Federal de Pelotas; Capão do Leão Rio Grande do Sul Brasil
| | - Allan Timmermann
- Section for Ecoinformatics and Biodiversity; Department of Bioscience; Aarhus University; Ny Munkegade 114 DK-8000 Aarhus C Denmark
| | - Isabela G. Varassin
- Laboratório de Ecologia Vegetal; Departamento de Botânica; Universidade Federal do Paraná; 81531-980 Curitiba Paraná Brasil
| | - Thais B. Zanata
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Universitetsparken 15 DK-2100 Copenhagen Ø Denmark
- Laboratório de Ecologia Vegetal; Departamento de Botânica; Universidade Federal do Paraná; 81531-980 Curitiba Paraná Brasil
| | - Carsten Rahbek
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Universitetsparken 15 DK-2100 Copenhagen Ø Denmark
- Department of Life Sciences; Imperial College London; Silwood Park Campus Ascot SL5 7PY UK
| | - Marlies Sazima
- Departamento de Biologia Vegetal; Instituto de Biologia; Universidade Estadual de Campinas (Unicamp); Cx. Postal 6109 CEP: 13083-970 Campinas SP Brasil
| | - Bo Dalsgaard
- Center for Macroecology, Evolution and Climate; Natural History Museum of Denmark; University of Copenhagen; Universitetsparken 15 DK-2100 Copenhagen Ø Denmark
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10
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Dellinger AS, Essl F, Hojsgaard D, Kirchheimer B, Klatt S, Dawson W, Pergl J, Pyšek P, van Kleunen M, Weber E, Winter M, Hörandl E, Dullinger S. Niche dynamics of alien species do not differ among sexual and apomictic flowering plants. THE NEW PHYTOLOGIST 2016; 209:1313-23. [PMID: 26508329 PMCID: PMC4950116 DOI: 10.1111/nph.13694] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Accepted: 08/31/2015] [Indexed: 05/20/2023]
Abstract
Biological invasions can be associated with shifts of the species' climatic niches but the incidence of such shifts is under debate. The reproductive system might be a key factor controlling such shifts because it influences a species' evolutionary flexibility. However, the link between reproductive systems and niche dynamics in plant invasions has been little studied so far. We compiled global occurrence data sets of 13 congeneric sexual and apomictic species pairs, and used principal components analysis (PCA) and kernel smoothers to compare changes in climatic niche optima, breadths and unfilling/expansion between native and alien ranges. Niche change metrics were compared between sexual and apomictic species. All 26 species showed changes in niche optima and/or breadth and 14 species significantly expanded their climatic niches. However, we found no effect of the reproductive system on niche dynamics. Instead, species with narrower native niches showed higher rates of niche expansion in the alien ranges. Our results suggest that niche shifts are frequent in plant invasions but evolutionary potential may not be of major importance for such shifts. Niche dynamics rather appear to be driven by changes of the realized niche without adaptive change of the fundamental climatic niche.
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Affiliation(s)
- Agnes S. Dellinger
- Department of Botany and Biodiversity ResearchUniversity of ViennaRennweg 14Vienna1030Austria
| | - Franz Essl
- Department of Botany and Biodiversity ResearchUniversity of ViennaRennweg 14Vienna1030Austria
| | - Diego Hojsgaard
- Department of Systematics, Biodiversity and Evolution of PlantsGeorg‐August‐University of GöttingenUntere Karspüle 2Göttingen37073Germany
| | - Bernhard Kirchheimer
- Department of Botany and Biodiversity ResearchUniversity of ViennaRennweg 14Vienna1030Austria
| | - Simone Klatt
- Department of Systematics, Biodiversity and Evolution of PlantsGeorg‐August‐University of GöttingenUntere Karspüle 2Göttingen37073Germany
| | - Wayne Dawson
- EcologyUniversity of KonstanzUniversitätsstrasse 10Konstanz78457Germany
| | - Jan Pergl
- Institute of BotanyDepartment of Invasion EcologyThe Czech Academy of SciencesPrůhoniceCZ‐252 43Czech Republic
| | - Petr Pyšek
- Institute of BotanyDepartment of Invasion EcologyThe Czech Academy of SciencesPrůhoniceCZ‐252 43Czech Republic
- Department of EcologyFaculty of ScienceCharles University in PragueViničná 7CZ‐128 44Prague 2Czech Republic
| | - Mark van Kleunen
- EcologyUniversity of KonstanzUniversitätsstrasse 10Konstanz78457Germany
| | - Ewald Weber
- Institute of Biochemistry and BiologyUniversity of PotsdamMaulbeerallee 1Potsdam14469Germany
| | - Marten Winter
- German Centre for Integrative Biodiversity Research (iDiv)Halle‐Jena‐LeipzigGermany
| | - Elvira Hörandl
- Department of Systematics, Biodiversity and Evolution of PlantsGeorg‐August‐University of GöttingenUntere Karspüle 2Göttingen37073Germany
| | - Stefan Dullinger
- Department of Botany and Biodiversity ResearchUniversity of ViennaRennweg 14Vienna1030Austria
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11
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Moodley D, Geerts S, Richardson DM, Wilson JRU. The importance of pollinators and autonomous self-fertilisation in the early stages of plant invasions: Banksia and Hakea (Proteaceae) as case studies. PLANT BIOLOGY (STUTTGART, GERMANY) 2016; 18:124-131. [PMID: 25865269 DOI: 10.1111/plb.12334] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 04/04/2015] [Indexed: 06/04/2023]
Abstract
Reproduction is a crucial stage in the naturalisation of introduced plant species. Here, using breeding system experiments and observations of floral visitors, we investigate whether a lack of pollinators or an inability to autonomously self-fertilise limits naturalisation in five Australian Banksia species and the co-familial Hakea salicifolia in South Africa. Banksia species were heavily utilised by native insects and nectar-feeding birds. Although Banksia produced fruit when pollinators were excluded, pollinators significantly increased seed set in four of the five species. H. salicifolia flowers were visited by 11 insect species; honeybees (Apis mellifera) were the main visitors. Flowers in naturalised H. salicifolia populations received almost four times the number of visits as flowers in non-naturalised populations; the latter showed both pollen limitation (PLI 0.40) and partial self-incompatibility. This should not prevent invasion, since H. salicifolia produces fruits via autonomous selfing in the absence of pollinators. The results suggest a limited role of breeding systems in mediating naturalisation of introduced Proteaceae species. Other factors, such as features of the recipient environments, appear to be more important. Spatial variation in rates of reproduction might, however, explain variation in the extent and rate of naturalisation of different populations.
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Affiliation(s)
- D Moodley
- Department of Botany and Zoology, Centre for Invasion Biology, Stellenbosch University, Matieland, South Africa
- Invasive Species Programme, South African National Biodiversity Institute, Kirstenbosch National Botanical Gardens, Claremont, South Africa
- School of Agriculture, Earth and Environmental Science, University of KwaZulu-Natal, Durban, South Africa
| | - S Geerts
- Department of Botany and Zoology, Centre for Invasion Biology, Stellenbosch University, Matieland, South Africa
- Invasive Species Programme, South African National Biodiversity Institute, Kirstenbosch National Botanical Gardens, Claremont, South Africa
- Department of Conservation and Marine Sciences, Cape Peninsula University of Technology, Cape Town, South Africa
| | - D M Richardson
- Department of Botany and Zoology, Centre for Invasion Biology, Stellenbosch University, Matieland, South Africa
| | - J R U Wilson
- Department of Botany and Zoology, Centre for Invasion Biology, Stellenbosch University, Matieland, South Africa
- Invasive Species Programme, South African National Biodiversity Institute, Kirstenbosch National Botanical Gardens, Claremont, South Africa
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