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Pille Arnold J, Tylianakis JM, Murphy MV, Cawthray GR, Webber BL, Didham RK. Body-size-dependent effects of landscape-level resource energetics on pollinator abundance in woodland remnants. Proc Biol Sci 2024; 291:20232771. [PMID: 38864334 DOI: 10.1098/rspb.2023.2771] [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: 07/31/2023] [Accepted: 04/24/2024] [Indexed: 06/13/2024] Open
Abstract
Land use change alters floral resource availability, thereby contributing to declines in important pollinators. However, the severity of land use impact varies by species, influenced by factors such as dispersal ability and resource specialization, both of which can correlate with body size. Here. we test whether floral resource availability in the surrounding landscape (the 'matrix') influences bee species' abundance in isolated remnant woodlands, and whether this effect varies with body size. We sampled quantitative flower-visitation networks within woodland remnants and quantified floral energy resources (nectar and pollen calories) available to each bee species both within the woodland and the matrix. Bee abundance in woodland increased with floral energy resources in the surrounding matrix, with strongest effects on larger-bodied species. Our findings suggest important but size-dependent effects of declining matrix floral resources on the persistence of bees in remnant woodlands, highlighting the need to incorporate landscape-level floral resources in conservation planning for pollinators in threatened natural habitats.
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Affiliation(s)
- Juliana Pille Arnold
- School of Biological Sciences, The University of Western Australia, Crawley, Western Australia, 6009, Australia
- CSIRO Health & Biosecurity, Centre for Environment and Life Sciences, Floreat, Western Australia, 6014, Australia
| | - Jason M Tylianakis
- Bioprotection Aotearoa, School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Mark V Murphy
- School of Biological Sciences, The University of Western Australia, Crawley, Western Australia, 6009, Australia
| | - Gregory R Cawthray
- School of Biological Sciences, The University of Western Australia, Crawley, Western Australia, 6009, Australia
| | - Bruce L Webber
- School of Biological Sciences, The University of Western Australia, Crawley, Western Australia, 6009, Australia
- CSIRO Health & Biosecurity, Centre for Environment and Life Sciences, Floreat, Western Australia, 6014, Australia
| | - Raphael K Didham
- School of Biological Sciences, The University of Western Australia, Crawley, Western Australia, 6009, Australia
- CSIRO Health & Biosecurity, Centre for Environment and Life Sciences, Floreat, Western Australia, 6014, Australia
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2
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Dessart M, Aguiar JMRBV, Tabacchi E, Guillerme S, Giurfa M. Color-advertising strategies of invasive plants through the bee eye. FRONTIERS IN PLANT SCIENCE 2024; 15:1393204. [PMID: 38841283 PMCID: PMC11150686 DOI: 10.3389/fpls.2024.1393204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/30/2024] [Indexed: 06/07/2024]
Abstract
Invasive plants represent a significant global challenge as they compete with native plants for limited resources such as space, nutrients and pollinators. Here, we focused on four invasive species that are widely spread in the French Pyrenees, Buddleja davidii, Reynoutria japonica, Spiraea japonica and Impatiens glandulifera, and analyzed their visual advertisement signals with respect to those displayed by their surrounding native species using a perceptual approach based on the neural mechanisms of bee vision given that bees are regular pollinators of these plants. We collected 543 spectral reflections from the 4 invasive species, and 66 native species and estimated achromatic and chromatic similarities to the bee eye. R. japonica, S. japonica and B. davidii were inconspicuous against the foliage background and could be hardly discriminated in terms of color from their surrounding native plants. These characteristics promote generalization, potentially attracting pollinators foraging on similar native species. Two morphs of I. glandulifera were both highly salient in chromatic and achromatic terms and different from their surrounding native species. This distinctive identity facilitates detection and learning in association with rich nectar. While visual signals are not the only sensory cue accounting for invasive-plant success, our study reveals new elements for understanding biological invasion processes from the perspective of pollinator perceptual processes.
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Affiliation(s)
- Martin Dessart
- Institut de Recherche sur la Biologie de l'Insecte, Centre National de la Recherche Scientifique (CNRS), University of Tours, Tours, France
| | | | - Eric Tabacchi
- Centre de Recherche sur la Biodiversité et l'Environnement (CRBE), UMR 53000, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), Institut National Polytechnique, Université Paul Sabatier, Toulouse, France
| | - Sylvie Guillerme
- Laboratoire Géographie de l’Environnement (GEODE), Centre National de la Recherche Scientifique (CNRS), University Toulouse Jean-Jaurès, Toulouse, France
| | - Martin Giurfa
- Institut Universitaire de France, Paris, France
- Neuroscience Paris-Seine - Institut de Biologie Paris-Seine, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), Sorbonne University, Paris, France
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3
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Costa A, Moré M, Sérsic AN, Cocucci AA, Drewniak ME, Izquierdo JV, Coetzee A, Pauw A, Traveset A, Paiaro V. Floral colour variation of Nicotiana glauca in native and non-native ranges: Testing the role of pollinators' perception and abiotic factors. PLANT BIOLOGY (STUTTGART, GERMANY) 2023; 25:403-410. [PMID: 36744723 DOI: 10.1111/plb.13509] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
Invasive plants displaying disparate pollination environments and abiotic conditions in native and non-native ranges provide ideal systems to test the role of different ecological factors driving flower colour variation. We quantified corolla reflectance of the ornithophilous South American Nicotiana glauca in native populations, where plants are pollinated by hummingbirds, and in populations from two invaded regions: South Africa, where plants are pollinated by sunbirds, and the Balearic island of Mallorca, where plants reproduce by selfing. Using visual modelling we examined how corolla reflectance could be perceived by floral visitors present in each region. Through Mantel tests we assessed a possible association between flower colour and different abiotic factors. Corolla reflectance variation (mainly along medium to long wavelengths, i.e. human green-yellow to red colours) was greater among studied regions than within them. Flower colour was more similar between South America and South Africa, which share birds as pollinators. Within invaded regions, corolla reflectance variation was lower in South Africa, where populations could not be distinguished from each other by sunbirds, than in Spain, where populations could be distinguished from each other by their occasional visitors. Differences in corolla colour among populations were partially associated with differences in temperature. Our findings suggest that shifts in flower colour of N. glauca across native and invaded ranges could be shaped by changes in both pollination environment and climatic factors. This is the first study on plant invasions considering visual perception of different pollinators and abiotic drivers of flower colour variation.
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Affiliation(s)
- A Costa
- Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC), Córdoba, Argentina
| | - M Moré
- Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC), Córdoba, Argentina
| | - A N Sérsic
- Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC), Córdoba, Argentina
| | - A A Cocucci
- Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC), Córdoba, Argentina
| | - M E Drewniak
- Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC), Córdoba, Argentina
| | - J V Izquierdo
- Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC), Córdoba, Argentina
| | - A Coetzee
- Fitz Patrick Institute of African Ornithology, DSI-NRF Centre of Excellence, University of Cape Town, Rondebosch, South Africa
| | - A Pauw
- Department of Botany and Zoology, Stellenbosch University, Matieland, South Africa
| | - A Traveset
- Instituto Mediterráneo de Estudios Avanzados (CSIC, UIB), Mallorca, Balearic Islands, Spain
| | - V Paiaro
- Instituto Multidisciplinario de Biología Vegetal (CONICET-UNC), Córdoba, Argentina
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Adams LD, Giovannoni D, Clark VR, Steenhuisen SL, Martin GD. Reproductive Ecology of the Invasive Alien Shrub Pyracantha angustifolia in the Grassland Biome, South Africa. PLANTS (BASEL, SWITZERLAND) 2023; 12:1308. [PMID: 36986995 PMCID: PMC10058135 DOI: 10.3390/plants12061308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/20/2023] [Accepted: 02/23/2023] [Indexed: 06/19/2023]
Abstract
Knowledge on reproductive traits of problematic invasive alien plants, such as the woody invasive shrub Pyracantha angustifolia of temperate Chinese origin, can help better manage invasive species. To determine factors contributing to its invasion, we investigated floral visitors and pollen loads, self-compatibility, seed set, seed rain, soil seed banks, and seed longevity in the soil. Generalist insects were recorded visiting flowers and all carried pollen loads of high purity (>70%). Floral visitor exclusion experiments showed that P. angustifolia can set seed (66%) without pollen vectors, although natural pollination resulted in higher fruit set (91%). Fruit count surveys and seed set showed an exponentially increased relationship between seed set and plant size with high natural seed yield (±2 million seeds m-2). Soil core samples revealed a high seed density of 46,400 ± (SE) 8934 m-2 under shrubs, decreasing with distance away from the shrub. Bowl traps stationed under trees and fences confirmed that seeds were efficiently dispersed by animals. Buried seeds survived for less than six months in the soil. Due to high seed production, self-compatibility augmented by generalist pollen vectors, and effective seed dispersal by local frugivores, it is difficult to manage the spread manually. Management of this species should focus on the short life span of seeds.
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Affiliation(s)
- Lehlohonolo D. Adams
- South African National Biodiversity Institute, Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg 3209, South Africa
- Afromontane Research Unit & Department of Plant Sciences, University of the Free State, Phuthaditjhaba 9866, South Africa
- Centre for Invasion Biology, Department of Plant Sciences, University of the Free State, Phuthaditjhaba 9866, South Africa
| | - Dino Giovannoni
- Department of Physics, Rhodes University, Makhanda (Grahamstown) 6139, South Africa
| | - Vincent R. Clark
- Afromontane Research Unit & Department of Geography, University of the Free State, Phuthaditjhaba 9866, South Africa
| | - Sandy-Lynn Steenhuisen
- Afromontane Research Unit & Department of Plant Sciences, University of the Free State, Phuthaditjhaba 9866, South Africa
| | - Grant D. Martin
- Afromontane Research Unit & Department of Zoology and Entomology, University of the Free State, Phuthaditjhaba 9866, South Africa
- Centre for Biological Control, Department of Entomology and Zoology, Rhodes University, Makhanda (Grahamstown) 6139, South Africa
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5
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Zaninotto V, Thebault E, Dajoz I. Native and exotic plants play different roles in urban pollination networks across seasons. Oecologia 2023; 201:525-536. [PMID: 36692691 PMCID: PMC9872067 DOI: 10.1007/s00442-023-05324-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 01/15/2023] [Indexed: 01/25/2023]
Abstract
Urban areas often host exotic plant species, whether managed or spontaneous. These plants are suspected of affecting pollinator diversity and the structure of pollination networks. However, in dense cityscapes, exotic plants also provide additional flower resources during periods of scarcity, and the consequences for the seasonal dynamics of networks still need to be investigated. For two consecutive years, we monitored monthly plant-pollinator networks in 12 green spaces in Paris, France. We focused on seasonal variations in the availability and attractiveness of flower resources, comparing native and exotic plants at both the species and community levels. We also considered their respective contributions to network properties over time (specialization and nestedness). Exotic plants provided more abundant and diverse flower resources than native plants, especially from late summer on. However, native plants received more visits and attracted more pollinator species at the community level; and during certain times of the year at the species level as well. Exotic plants were involved in more generalist interactions, increasingly so over the seasons. In addition, they contributed more to network nestedness than native plants. These results show that exotic plants are major components of plant-pollinator interactions in a dense urban landscape, even though they are less attractive than natives. They constitute a core of generalist interactions that increase nestedness and can participate in the overall stability of the network. However, most exotic species were seldom visited by insects. Pollinator communities may benefit from including more native species when managing urban green spaces.
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Affiliation(s)
- Vincent Zaninotto
- Institute of Ecology and Environmental Sciences-Paris (iEES-Paris), Sorbonne Université, CNRS, IRD, INRAE, Université Paris Cité, UPEC. 4 Place Jussieu, 75005, Paris, France.
- Direction des Espaces Verts et de L'Environnement, Ville de Paris, 103 Avenue de France, 75013, Paris, France.
| | - Elisa Thebault
- Institute of Ecology and Environmental Sciences-Paris (iEES-Paris), Sorbonne Université, CNRS, IRD, INRAE, Université Paris Cité, UPEC. 4 Place Jussieu, 75005, Paris, France
| | - Isabelle Dajoz
- Institute of Ecology and Environmental Sciences-Paris (iEES-Paris), Sorbonne Université, CNRS, IRD, INRAE, Université Paris Cité, UPEC. 4 Place Jussieu, 75005, Paris, France
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6
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Pollinator Communities of Planted and Feral Pyrus calleryana. ECOLOGIES 2022. [DOI: 10.3390/ecologies4010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Pyrus calleryana was intentionally introduced to North America from east Asia in the early 1900s as rootstock for the edible pear tree, Pyrus communis. It was identified as an ideal decorative, agricultural, and horticultural tree because of its small stature, early spring flowering, fire blight resistance and inoffensive fruits. P. calleryana escaped cultivation and is now considered an invasive species, typically found on roadsides, prairies, and fields. The aim of this study is to characterize pollinator community diversity from planted and feral trees, as well as diversity as it compares to expected communities derived from research-grade iNaturalist observations. Pollinators were collected by hand on planted and feral P. calleryana trees in April 2018–2022. A total of 14 taxa of insect pollinator were collected from P. calleryana flowers, with similar levels of diversity of pollinator taxa collected from planted and feral trees, and Apis mellifera and Andrena spp. the most common taxa observed. The sampled pollinator community did not differ from the expected pollinator communities generated using the iNaturalist data on either the planted or feral P. calleryana.
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7
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Bar-Shai N, Motro U, Shmida A, Bloch G. Earlier Morning Arrival to Pollen-Rewarding Flowers May Enable Feral Bumble Bees to Successfully Compete with Local Bee Species and Expand Their Distribution Range in a Mediterranean Habitat. INSECTS 2022; 13:816. [PMID: 36135517 PMCID: PMC9503872 DOI: 10.3390/insects13090816] [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: 07/10/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
During recent decades, bumble bees (Bombus terrestris) have continuously expanded their range in the Mediterranean climate regions of Israel. To assess their potential effects on local bee communities, we monitored their diurnal and seasonal activity patterns, as well as those of native bee species in the Judean Hills. We found that all bee species tend to visit pollen-providing flowers at earlier times compared to nectar-providing flowers. Bumble bees and honey bees start foraging at earlier times and colder temperatures compared to other species of bees. This means that the two species of commercially managed social bees are potentially depleting much of the pollen, which is typically non-replenished, before most local species arrive to gather it. Taking into consideration the long activity season of bumble bees in the Judean hills, their ability to forage at the low temperatures of the early morning, and their capacity to collect pollen at early hours in the dry Mediterranean climate, feral and range-expanding bumble bees potentially pose a significant competitive pressure on native bee fauna. Their effects on local bees can further modify pollination networks, and lead to changes in the local flora.
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Affiliation(s)
- Noam Bar-Shai
- Department of Ecology, Evolution and Behavior, The A. Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
- Jerusalem Botanical Garden, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Uzi Motro
- Department of Ecology, Evolution and Behavior, The A. Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
- Department of Statistics, The Hebrew University of Jerusalem, Jerusalem 91905, Israel
- The Federmann Center for the Study of Rationality, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Avishai Shmida
- Department of Ecology, Evolution and Behavior, The A. Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
- The Federmann Center for the Study of Rationality, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Guy Bloch
- Department of Ecology, Evolution and Behavior, The A. Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
- The Federmann Center for the Study of Rationality, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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8
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Effect of Landscape Composition and Invasive Plants on Pollination Networks of Smallholder Orchards in Northeastern Thailand. PLANTS 2022; 11:plants11151976. [PMID: 35956454 PMCID: PMC9370323 DOI: 10.3390/plants11151976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/20/2022] [Accepted: 07/27/2022] [Indexed: 11/17/2022]
Abstract
Destruction of natural habitat, land-use changes and biological invasion are some of the major threats to biodiversity. Both habitat alteration and biological invasions can have impacts on pollinator communities and pollination network structures. This study aims to examine the effect of an invasive plant, praxelis (Praxelis clematidea; Asteraceae), and land-use types on pollinator communities and the structure of pollination networks. We conducted the study in smallholder orchards which are either invaded or non-invaded by P. clematidea. We estimated the pollinator richness, visitation rates, and pollinator diversity and evaluated the network structures from 18 smallholder orchards in Northeastern Thailand. The effect of landscape structure in the vicinity of the orchards was investigated, with the proportion of agricultural, forest, and urban landscape within a 3 km radius analyzed. The invasive species and land-use disturbance influence the pollinator communities and pollination network structure at species level was affected by the presence of P. clematidea. Bees were the most important pollinator group for pollinator communities and pollination networks of both invaded or non-invaded plots, as bees are a generalist species, they provide the coherence of both the network and its own module. The urban landscape had a strong negative influence on pollinator richness, while the proportions of agriculture and forest landscape positively affected the pollinator community.
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9
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Vulnerability of non-native invasive plants to novel pathogen attack: do plant traits matter? Biol Invasions 2022. [DOI: 10.1007/s10530-022-02853-z] [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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10
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Kovács-Hostyánszki A, Szigeti V, Miholcsa Z, Sándor D, Soltész Z, Török E, Fenesi A. Threats and benefits of invasive alien plant species on pollinators. Basic Appl Ecol 2022. [DOI: 10.1016/j.baae.2022.07.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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11
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Suni S, Hall E, Bahu E, Hayes H. Urbanization increases floral specialization of pollinators. Ecol Evol 2022; 12:e8619. [PMID: 35309755 PMCID: PMC8901868 DOI: 10.1002/ece3.8619] [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: 05/17/2021] [Revised: 08/18/2021] [Accepted: 09/19/2021] [Indexed: 11/12/2022] Open
Abstract
Understanding how urbanization alters functional interactions among pollinators and plants is critically important given increasing anthropogenic land use and declines in pollinator populations. Pollinators often exhibit short-term specialization and visit plants of the same species during one foraging trip. This facilitates plant receipt of conspecific pollen-pollen on a pollinator that is the same species as the plant on which the pollinator was foraging. Conspecific pollen receipt facilitates plant reproductive success and is thus important to plant and pollinator persistence. We investigated how urbanization affects short-term specialization of insect pollinators by examining pollen loads on insects' bodies and identifying the number and species of pollen grains on insects caught in urban habitat fragments and natural areas. We assessed possible drivers of differences between urban and natural areas, including frequency dependence in foraging, species richness and diversity of the plant and pollinator communities, floral abundance, and the presence of invasive plant species. Pollinators were more specialized in urban fragments than in natural areas, despite no differences in the species richness of plant communities across site types. These differences were likely driven by higher specialization of common pollinators, which were more abundant in urban sites. In addition, pollinators preferred to forage on invasive plants at urban sites and native plants at natural sites. Our findings reveal indirect effects of urbanization on pollinator fidelity to individual plant species and have implications for the maintenance of plant species diversity in small habitat fragments. Higher preference of pollinators for invasive plants at urban sites suggests that native species may receive fewer visits by pollinators. Therefore, native plant species diversity may decline in urban sites without continued augmentation of urban flora or removal of invasive species.
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Affiliation(s)
- Sevan Suni
- Department of BiologyUniversity of San FranciscoSan FranciscoCaliforniaUSA
| | - Erin Hall
- Department of BiologyUniversity of San FranciscoSan FranciscoCaliforniaUSA
| | - Evangelina Bahu
- Department of BiologyUniversity of San FranciscoSan FranciscoCaliforniaUSA
| | - Hannah Hayes
- Department of BiologyUniversity of San FranciscoSan FranciscoCaliforniaUSA
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12
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Mbundi MM, Ngondya IB, Ghaui M, Treydte AC. Comparison of the effects of a broad-spectrum herbicide and a bio-herbicide on insect flower visitation in the Serengeti ecosystem, Tanzania. J Nat Conserv 2021. [DOI: 10.1016/j.jnc.2021.126084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Abdallah M, Hervías-Parejo S, Traveset A. Low Pollinator Sharing Between Coexisting Native and Non-native Plant Pairs: The Effect of Corolla Length and Flower Abundance. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.709876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Understanding the mechanisms by which non-native plants can attract pollinators in their new geographical zones is important because such species infiltrate native communities and can disrupt native ecological interactions. Despite the large number of studies assessing how invasive plants impact plant–pollinator interactions, the specific comparison of pollination interactions between native and non-native plant pairs has received much less attention. Here we focused on four coexisting co-flowering pairs of common native and non-native species, both with abundant flowers but different floral traits, and asked: (1) to what extent native and non-native plants share pollinator species, and whether the non-native plants attract a different set of pollinators, (2) whether the most shared pollinators are the most frequent floral visitors and the most generalized in their interactions, and (3) how much of the variation in the diversity and frequency of pollinator species between native and non-native plant species can be explained by floral trait dissimilarity and flower abundance. Direct pollinator observations revealed that the plant pairs shared a low fraction (0–33%) of insect species, i.e., non-native plants tended to acquire a different set of pollinators than their native counterparts. The most shared pollinators in each plant pair were the most common but not the most generalized species, and non-native species attracted both generalized and specialized pollinators. Corolla length at opening and flower abundance showed to be important in determining the differences in flower visitation rate between natives and non-natives. Our findings support the general pattern that non-native species have no barriers at the pollination stage to integrate into native communities and that they may attract a different assemblage of pollinators relative to those that visit native plants with which they coexist.
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14
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Kim J, Huebner CD, Park YL. Plant Species Composition and Interactions within Communities Invaded by Persicaria perfoliata (Polygonaceae). Northeast Nat (Steuben) 2021. [DOI: 10.1656/045.028.0308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Jaewon Kim
- Entomology Program, Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV 26506
| | - Cynthia D. Huebner
- Entomology Program, Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV 26506
| | - Yong-Lak Park
- Entomology Program, Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV 26506
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15
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Parra-Tabla V, Arceo-Gómez G. Impacts of plant invasions in native plant-pollinator networks. THE NEW PHYTOLOGIST 2021; 230:2117-2128. [PMID: 33710642 DOI: 10.1111/nph.17339] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 02/25/2021] [Indexed: 06/12/2023]
Abstract
The disruption of mutualisms by invasive species has consequences for biodiversity loss and ecosystem function. Although invasive plant effects on the pollination of individual native species has been the subject of much study, their impacts on entire plant-pollinator communities are less understood. Community-level studies on plant invasion have mainly focused on two fronts: understanding the mechanisms that mediate their integration; and their effects on plant-pollinator network structure. Here we briefly review current knowledge and propose a more unified framework for evaluating invasive species integration and their effects on plant-pollinator communities. We further outline gaps in our understanding and propose ways to advance knowledge in this field. Specifically, modeling approaches have so far yielded important predictions regarding the outcome and drivers of invasive species effects on plant communities. However, experimental studies that test these predictions in the field are lacking. We further emphasize the need to understand the link between invasive plant effects on pollination network structure and their consequences for native plant population dynamics (population growth). Integrating demographic studies with those on pollination networks is thus key in order to achieve a more predictive understanding of pollinator-mediated effects of invasive species on the persistence of native plant biodiversity.
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Affiliation(s)
- Víctor Parra-Tabla
- Departamento de Ecología Tropical, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, Yucatán, 97200, México
| | - Gerardo Arceo-Gómez
- Department of Biological Sciences, East Tennessee State University, Johnson City, TN, 37614, USA
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16
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Moroń D, Marjańska E, Skórka P, Lenda M, Woyciechowski M. Invader–pollinator paradox: Invasive goldenrods benefit from large size pollinators. DIVERS DISTRIB 2021. [DOI: 10.1111/ddi.13221] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Dawid Moroń
- Institute of Systematics and Evolution of Animals Polish Academy of Sciences Kraków Poland
| | - Emilia Marjańska
- Institute of Environmental Sciences Jagiellonian University Kraków Poland
| | - Piotr Skórka
- Institute of Nature Conservation Polish Academy of Sciences Kraków Poland
| | - Magdalena Lenda
- Institute of Nature Conservation Polish Academy of Sciences Kraków Poland
- School of Biological Sciences The University of Queensland Brisbane QLD Australia
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17
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Stewart PS, Hill RA, Stephens PA, Whittingham MJ, Dawson W. Impacts of invasive plants on animal behaviour. Ecol Lett 2021; 24:891-907. [PMID: 33524221 DOI: 10.1111/ele.13687] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/21/2020] [Accepted: 12/24/2020] [Indexed: 01/08/2023]
Abstract
The spread of invasive species is a threat to ecosystems worldwide. However, we know relatively little about how invasive species affect the behaviour of native animals, even though behaviour plays a vital role in the biotic interactions which are key to understanding the causes and impacts of biological invasions. Here, we explore how invasive plants - one of the most pervasive invasive taxa - impact the behaviour of native animals. To promote a mechanistic understanding of these behavioural impacts, we begin by introducing a mechanistic framework which explicitly considers the drivers and ecological consequences of behavioural change, as well as the moderating role of environmental context. We then synthesise the existing literature within this framework. We find that while some behavioural impacts of invasive plants are relatively well-covered in the literature, others are supported by only a handful of studies and should be explored further in the future. We conclude by identifying priority topics for future research, which will benefit from an interdisciplinary approach uniting invasion ecology with the study of animal behaviour and cognition.
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Affiliation(s)
- Peter S Stewart
- Department of Biosciences, Durham University, Durham, DH1 3LE, UK
| | - Russell A Hill
- Department of Anthropology, Durham University, Durham, DH1 3LE, UK
| | | | - Mark J Whittingham
- School of Natural and Environmental Sciences, Newcastle University, Newcastle-Upon-Tyne, NE1 7RU, UK
| | - Wayne Dawson
- Department of Biosciences, Durham University, Durham, DH1 3LE, UK
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18
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Corcos D, Cappellari A, Mei M, Paniccia D, Cerretti P, Marini L. Contrasting effects of exotic plant invasions and managed honeybees on plant–flower visitor interactions. DIVERS DISTRIB 2020. [DOI: 10.1111/ddi.13132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Daria Corcos
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE) University of Padua Legnaro, Padua Italy
| | - Andree Cappellari
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE) University of Padua Legnaro, Padua Italy
- Department of Biology and Biotechnology “Charles Darwin” Sapienza University of Rome Rome Italy
| | - Maurizio Mei
- Department of Biology and Biotechnology “Charles Darwin” Sapienza University of Rome Rome Italy
| | | | - Pierfilippo Cerretti
- Department of Biology and Biotechnology “Charles Darwin” Sapienza University of Rome Rome Italy
| | - Lorenzo Marini
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE) University of Padua Legnaro, Padua Italy
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19
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Szigeti V, Fenesi A, Soltész Z, Berki B, Kovács-Hostyánszki A. Neutral effect of an invasive plant species with specialized flower structure on native pollinator communities. Biol Invasions 2020. [DOI: 10.1007/s10530-020-02305-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Cariveau DP, Bruninga-Socolar B, Pardee GL. A review of the challenges and opportunities for restoring animal-mediated pollination of native plants. Emerg Top Life Sci 2020; 4:ETLS20190073. [PMID: 32556128 PMCID: PMC7326338 DOI: 10.1042/etls20190073] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 05/26/2020] [Accepted: 05/27/2020] [Indexed: 01/08/2023]
Abstract
Ecological restoration is increasingly implemented to reverse habitat loss and concomitant declines in biological diversity. Typically, restoration success is evaluated by measuring the abundance and/or diversity of a single taxon. However, for a restoration to be successful and persistent, critical ecosystem functions such as animal-mediated pollination must be maintained. In this review, we focus on three aspects of pollination within ecological restorations. First, we address the need to measure pollination directly in restored habitats. Proxies such as pollinator abundance and richness do not always accurately assess pollination function. Pollen supplementation experiments, pollen deposition studies, and pollen transport networks are more robust methods for assessing pollination function within restorations. Second, we highlight how local-scale management and landscape-level factors may influence pollination within restorations. Local-scale management actions such as prescribed fire and removal of non-native species can have large impacts on pollinator communities and ultimately on pollination services. In addition, landscape context including proximity and connectivity to natural habitats may be an important factor for land managers and conservation practitioners to consider to maximize restoration success. Third, as climate change is predicted to be a primary driver of future loss in biodiversity, we discuss the potential effects climate change may have on animal-mediated pollination within restorations. An increased mechanistic understanding of how climate change affects pollination and incorporation of climate change predictions will help practitioners design stable, functioning restorations into the future.
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Affiliation(s)
- Daniel P Cariveau
- Department of Entomology, University of Minnesota, St. Paul, MN, U.S.A
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21
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dos Santos JMA, Carneiro LT, Martins CF. Are native nectar robbers against the alien? Effects of floral larceny on the reproductive success of the invasive yellow bells (Tecoma stans, Bignoniaceae). ACTA OECOLOGICA 2020. [DOI: 10.1016/j.actao.2020.103547] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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22
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Habitat provided by native species facilitates higher abundances of an invader in its introduced compared to native range. Sci Rep 2020; 10:6385. [PMID: 32286466 PMCID: PMC7156459 DOI: 10.1038/s41598-020-63429-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 03/23/2020] [Indexed: 11/28/2022] Open
Abstract
The impacts invasive species have on biodiversity and ecosystem function globally have been linked to the higher abundances they often obtain in their introduced compared to native ranges. Higher abundances of invaders in the introduced range are often explained by a reduction in negative species interactions in that range, although results are equivocal. The role of positive interactions in explaining differences in the abundance of invaders between native and invasive ranges has not been tested. Using biogeographic surveys, we showed that the rocky shore porcelain crab, Petrolisthes elongatus, was ~4 times more abundant in its introduced (Tasmania, Australia) compared to its native (New Zealand) range. The habitat of these crabs in the invaded range (underside of intertidal boulders) was extensively covered with the habitat-forming tubeworm Galeolaria caespitosa. We tested whether the habitat provided by the tubeworm facilitates a higher abundance of the invasive crab by creating mimics of boulders with and without the tubeworm physical structure and measured crab colonisation into these habitats at three sites in both Tasmania and New Zealand. Adding the tubeworm structure increased crab abundance by an average of 85% across all sites in both ranges. Our intercontinental biogeographic survey and experiment demonstrate that native species can facilitate invader abundance and that positive interactions can be important drivers of invasion success.
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23
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Floral resources of an invasive shrub alter native bee communities at different vertical strata in forest-edge habitat. Biol Invasions 2020. [DOI: 10.1007/s10530-020-02248-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Daniels JD, Arceo-Gómez G. Effects of invasive Cirsium arvense on pollination in a southern Appalachian floral community vary with spatial scale and floral symmetry. Biol Invasions 2019. [DOI: 10.1007/s10530-019-02130-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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25
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Parra-Tabla V, Angulo-Pérez D, Albor C, Campos-Navarrete MJ, Tun-Garrido J, Sosenski P, Alonso C, Ashman TL, Arceo-Gómez G. The role of alien species on plant-floral visitor network structure in invaded communities. PLoS One 2019; 14:e0218227. [PMID: 31703061 PMCID: PMC6839871 DOI: 10.1371/journal.pone.0218227] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 10/23/2019] [Indexed: 11/18/2022] Open
Abstract
The interactions between pairs of native and alien plants via shared use of pollinators have been widely studied. Community level studies however, are necessary in order to fully understand the factors and mechanisms that facilitate successful plant invasion, but these are still scarce. Specifically, few community level studies have considered how differences in invasion level (alien flower abundance), and degree of floral trait similarity between native and invasive species, mediate effects on native plant-pollinator communities. Here, we evaluated the role of alien species on overall plant-floral visitor network structure, and on species-level network parameters, across nine invaded coastal communities distributed along 205 km in Yucatán, México that vary in alien species richness and flower abundance. We further assessed the potential the role of alien plant species on plant-floral visitor network structure and robustness via computational simulation of native and invasive plant extinction scenarios. We did not find significant differences between native and alien species in their functional floral phenotypes or in their visitation rate and pollinator community composition in these invaded sites. Variation in the proportion of alien plant species and flower abundance across sites did not influence plant-pollinator network structure. Species-level network parameters (i.e., normalized degree and nestedness contribution) did not differ between native and alien species. Furthermore, our simulation analyses revealed that alien species are functionally equivalent to native species and contribute equally to network structure and robustness. Overall, our results suggest that high levels of floral trait similarity and pollinator use overlap may help facilitate the integration of alien species into native plant-pollinator networks. As a result, alien species may also play a similar role than that of natives in the structure and stability of native plant and pollinator communities in the studied coastal sand dune ecosystem.
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Affiliation(s)
- Víctor Parra-Tabla
- Departamento de Ecología Tropical, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán,Mérida, Yucatán, México
- * E-mail:
| | - Diego Angulo-Pérez
- Departamento de Ecología Tropical, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán,Mérida, Yucatán, México
| | - Cristopher Albor
- Departamento de Ecología Tropical, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán,Mérida, Yucatán, México
| | - María José Campos-Navarrete
- División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Tizimín, Tecnológico Nacional de México,Tizimín, Yucatán, México
| | - Juan Tun-Garrido
- Departamento de Botánica, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Mérida, Yucatán, México
| | - Paula Sosenski
- Departamento de Ecología Tropical, Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán,Mérida, Yucatán, México
| | - Conchita Alonso
- Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas (CSIC), Avda, Sevilla, Spain
| | - Tia-Lynn Ashman
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Gerardo Arceo-Gómez
- Department of Biological Sciences, East Tennessee State University, Johnson City, TN, United States of America
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26
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Johnson LR, Breger B, Drummond F. Novel plant–insect interactions in an urban environment: enemies, protectors, and pollinators of invasive knotweeds. Ecosphere 2019. [DOI: 10.1002/ecs2.2885] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Affiliation(s)
- Lea R. Johnson
- Longwood Gardens, Research and Conservation Division Kennett Square Pennsylvania 19348 USA
- Department of Biology Bates College Lewiston Maine 04240 USA
- Department of Plant Science and Landscape Architecture University of Maryland College Park Maryland 20742 USA
| | - Benjamin Breger
- Department of Biology Bates College Lewiston Maine 04240 USA
| | - Francis Drummond
- School of Biology and Ecology University of Maine Orono Maine 04469 USA
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27
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Suárez-Mariño A, Arceo-Gómez G, Sosenski P, Parra-Tabla V. Patterns and effects of heterospecific pollen transfer between an invasive and two native plant species: the importance of pollen arrival time to the stigma. AMERICAN JOURNAL OF BOTANY 2019; 106:1308-1315. [PMID: 31553505 DOI: 10.1002/ajb2.1361] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/26/2019] [Indexed: 06/10/2023]
Abstract
PREMISE Invasive plant species can integrate into native plant-pollinator communities, but the underlying mechanisms are poorly understood. Competitive interactions between invasive and native plants via heterospecific pollen (HP) and differential invasive HP effects depending on HP arrival time to the stigma may mediate invasion success, but these have been little studied. METHODS We evaluated patterns and effects of HP receipt on pollen tube growth in two native and one invasive species in the field. We also used hand-pollination experiments to evaluate the effect of invasive HP pollen and its arrival time on native reproductive success. RESULTS Native species receive smaller and less-diverse HP loads (5-7 species) compared to invasive species (10 species). The load size of HP had a negative effect on the proportion of pollen tubes in both native species but not in the invasive, suggesting higher HP tolerance in the latter. Invasive HP arrival time differentially affected pollen tube success in native species. CONCLUSIONS Our results highlight the need to study reciprocal HP effects between invasive and native species and the factors that determine differential responses to HP receipt to fully understand the mechanisms facilitating invasive species integration into native plant-pollinator communities.
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Affiliation(s)
- Alexander Suárez-Mariño
- Departamento de Ecología Tropical, Campus de Ciencias Biológicas and Agropecuarias, Universidad Autónoma de Yucatán, Km 15.5 Carretera Mérida-Xtmakuil, Mérida Yucatán, México, 97000
| | - Gerardo Arceo-Gómez
- Department of Biological Sciences, East Tennessee State University, Johnson City, TN, 37614, USA
| | - Paula Sosenski
- Departamento de Ecología Tropical, Campus de Ciencias Biológicas and Agropecuarias, Universidad Autónoma de Yucatán, Km 15.5 Carretera Mérida-Xtmakuil, Mérida Yucatán, México, 97000
| | - Víctor Parra-Tabla
- Departamento de Ecología Tropical, Campus de Ciencias Biológicas and Agropecuarias, Universidad Autónoma de Yucatán, Km 15.5 Carretera Mérida-Xtmakuil, Mérida Yucatán, México, 97000
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Vanderplanck M, Roger N, Moerman R, Ghisbain G, Gérard M, Popowski D, Granica S, Fournier D, Meeus I, Piot N, Smagghe G, Terrana L, Michez D. Bumble bee parasite prevalence but not genetic diversity impacted by the invasive plant
Impatiens glandulifera. Ecosphere 2019. [DOI: 10.1002/ecs2.2804] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Maryse Vanderplanck
- Research Institute for Biosciences Laboratory of Zoology University of Mons Place du Parc 20 Mons B‐7000 Belgium
- Evo‐Eco‐Paleo ‐ UMR 8198 CNRS Université de Lille Lille F‐59000 France
| | - Nathalie Roger
- Research Institute for Biosciences Laboratory of Zoology University of Mons Place du Parc 20 Mons B‐7000 Belgium
| | - Romain Moerman
- Research Institute for Biosciences Laboratory of Zoology University of Mons Place du Parc 20 Mons B‐7000 Belgium
- Evolutionary Biology and Ecology Université libre de Bruxelles Av. F.D. Roosevelt 50 Brussels B‐1000 Belgium
| | - Guillaume Ghisbain
- Research Institute for Biosciences Laboratory of Zoology University of Mons Place du Parc 20 Mons B‐7000 Belgium
| | - Maxence Gérard
- Research Institute for Biosciences Laboratory of Zoology University of Mons Place du Parc 20 Mons B‐7000 Belgium
| | - Dominik Popowski
- Department of Pharmacognosy and Molecular Basis of Phytotherapy Medical University of Warsaw Banacha 1 Warsaw 02‐097 Poland
| | - Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy Medical University of Warsaw Banacha 1 Warsaw 02‐097 Poland
| | - Denis Fournier
- Evolutionary Biology and Ecology Université libre de Bruxelles Av. F.D. Roosevelt 50 Brussels B‐1000 Belgium
| | - Ivan Meeus
- Department of Crop Protection Faculty of Bioscience Engineering Laboratory of Agrozoology Ghent University Coupure Links 653 Ghent B‐9000 Belgium
| | - Niels Piot
- Department of Crop Protection Faculty of Bioscience Engineering Laboratory of Agrozoology Ghent University Coupure Links 653 Ghent B‐9000 Belgium
| | - Guy Smagghe
- Department of Crop Protection Faculty of Bioscience Engineering Laboratory of Agrozoology Ghent University Coupure Links 653 Ghent B‐9000 Belgium
| | - Lucas Terrana
- Research Institute for Biosciences Biology of Marine Organisms and Biomimetics University of Mons Place du Parc 20 Mons B‐7000 Belgium
| | - Denis Michez
- Research Institute for Biosciences Laboratory of Zoology University of Mons Place du Parc 20 Mons B‐7000 Belgium
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Bee community preference for an invasive thistle associated with higher pollen protein content. Oecologia 2019; 190:901-912. [PMID: 31280369 DOI: 10.1007/s00442-019-04462-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 07/02/2019] [Indexed: 10/26/2022]
Abstract
Non-native plant species reliant on insect pollination must attract novel pollinators in their introduced habitat to reproduce. Indeed, pollination services provided by resident floral visitors may contribute to the spread of non-native species, which may then affect the pollination services received by native plants. To determine the mechanisms by which an invasive thistle attracts pollinators in its introduced range, and whether its presence changes the pollinator visitation to native plant species, we compared bee visitation to native plants in the presence or absence of the invader. We experimentally tested the effect of a thistle invasion into a native plant community. We found that the non-native thistle was the most attractive of the plant species to visiting bee species. However, there was no effect of experimental treatment (presence of thistle) on bee abundance or visitation rate (bees per unit floral area per sample) to native plant species. Across 68 bee and 6 plant species, we found a significant correlation between pollen protein content and bee abundance and visitation rate. Thistle pollen also had a similar protein:lipid ratio to legumes, which correlated with bumble bee visitation. The high protein content of the thistle pollen, as compared to four native asters, may allow it to attract pollinators in novel ecosystems, and potentially contribute to its success as an invader. At the same time, this high protein pollen may act as a novel resource to pollinators in the thistle's invaded range.
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Buchholz S, Kowarik I. Urbanisation modulates plant-pollinator interactions in invasive vs. native plant species. Sci Rep 2019; 9:6375. [PMID: 31011154 PMCID: PMC6477046 DOI: 10.1038/s41598-019-42884-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 04/10/2019] [Indexed: 01/23/2023] Open
Abstract
Pollination is a key ecological process, and invasive alien plant species have been shown to significantly affect plant-pollinator interactions. Yet, the role of the environmental context in modulating such processes is understudied. As urbanisation is a major component of global change, being associated with a range of stressors (e.g. heat, pollution, habitat isolation), we tested whether the attractiveness of a common invasive alien plant (Robinia pseudoacacia, black locust) vs. a common native plant (Cytisus scoparius, common broom) for pollinators changes with increasing urbanisation. We exposed blossoms of both species along an urbanisation gradient and quantified different types of pollinator interaction with the flowers. Both species attracted a broad range of pollinators, with significantly more visits for R. pseudoacacia, but without significant differences in numbers of insects that immediately accessed the flowers. However, compared to native Cytisus, more pollinators only hovered in front of flowers of invasive Robinia without visiting those subsequently. The decision rate to enter flowers of the invasive species decreased with increasing urbanisation. This suggests that while invasive Robinia still attracts many pollinators in urban settings attractiveness may decrease with increasing urban stressors. Results indicated future directions to deconstruct the role of different stressors in modulating plant-pollinator interactions, and they have implications for urban development since Robinia can be still considered as a "pollinator-friendly" tree for certain urban settings.
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Affiliation(s)
- Sascha Buchholz
- Department of Ecology, Technische Universität Berlin, 12165, Berlin, Germany. .,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), 14195, Berlin, Germany.
| | - Ingo Kowarik
- Department of Ecology, Technische Universität Berlin, 12165, Berlin, Germany.,Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), 14195, Berlin, Germany
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31
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van Kleunen M, Bossdorf O, Dawson W. The Ecology and Evolution of Alien Plants. ANNUAL REVIEW OF ECOLOGY EVOLUTION AND SYSTEMATICS 2018. [DOI: 10.1146/annurev-ecolsys-110617-062654] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We review the state of the art of alien plant research with emphasis on conceptual advances and knowledge gains on general patterns and drivers, biotic interactions, and evolution. Major advances include the identification of different invasion stages and invasiveness dimensions (geographic range, habitat specificity, local abundance) and the identification of appropriate comparators while accounting for propagule pressure and year of introduction. Developments in phylogenetic and functional trait research bear great promise for better understanding of the underlying mechanisms. Global patterns are emerging with propagule pressure, disturbance, increased resource availability, and climate matching as major invasion drivers, but species characteristics also play a role. Biotic interactions with resident communities shape invasion outcomes, with major roles for species diversity, enemies, novel weapons, and mutualists. Mounting evidence has been found for rapid evolution of invasive aliens and evolutionary responses of natives, but a mechanistic understanding requires tighter integration of molecular and phenotypic approaches. We hope the open questions identified in this review will stimulate further research on the ecology and evolution of alien plants.
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Affiliation(s)
- Mark van Kleunen
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou 318000, China
- Ecology Group, Department of Biology, University of Konstanz, 78464 Konstanz, Germany
| | - Oliver Bossdorf
- Plant Evolutionary Ecology Group, Institute of Evolution and Ecology, University of Tübingen, 72076 Tübingen, Germany
| | - Wayne Dawson
- Department of Biosciences, Durham University, Durham DH1 3LE, United Kingdom
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Avanesyan A. Should I Eat or Should I Go? Acridid Grasshoppers and Their Novel Host Plants: Potential for Biotic Resistance. PLANTS (BASEL, SWITZERLAND) 2018; 7:E83. [PMID: 30301240 PMCID: PMC6313845 DOI: 10.3390/plants7040083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 09/27/2018] [Accepted: 10/02/2018] [Indexed: 06/08/2023]
Abstract
Novel, non-coevolved associations between introduced plants and native insect herbivores may lead to changes in trophic interactions in native communities, as well as to substantial economic problems. Although some studies in invasion ecology demonstrated that native herbivores can preferentially feed on introduced plants and therefore contribute to the biotic resistance of native communities to plant invasions, the role of acridid grasshoppers as native generalist insect herbivores is largely overlooked. This systematic review aimed to identify patterns of grasshopper feeding preferences for native versus introduced plants and, consequently, a potential of grasshoppers to provide biotic resistance of native communities. The analysis of 63 records of feeding preference trials for 28 North-American grasshopper species (retrieved from 2146 studies published during 1967⁻2017) has demonstrated a preference of grasshoppers for introduced host plants, and identified 12 preferred introduced plants with high or middle invasive ranks. A significant effect of the life stage (p < 0.001), but not the experimental environment, plant material, and measurements, on grasshopper preferences for introduced plants was also detected. Overall, results suggest a potential of acridid grasshoppers to contribute to the biotic resistance of native communities. The review also provides methodological recommendations for future experimental studies on grasshopper-host plant interactions.
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Affiliation(s)
- Alina Avanesyan
- Department of Entomology, University of Maryland, 4291 Fieldhouse Drive, 3128 Plant Sciences, College Park, MD 20742, USA.
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Knight TM, Ashman T, Bennett J, Burns JH, Passonneau S, Steets JA. Reflections on, and visions for, the changing field of pollination ecology. Ecol Lett 2018; 21:1282-1295. [DOI: 10.1111/ele.13094] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 03/10/2018] [Accepted: 04/17/2018] [Indexed: 01/03/2023]
Affiliation(s)
- T. M. Knight
- Institute of Biology Martin Luther University Halle‐Wittenberg Am Kirchtor 1 06108 Halle Germany
- Department Community Ecology Helmholtz Centre for Environmental Research – UFZ Theodor‐Lieser‐Straße 4 06120 Halle Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Deutscher Platz 5e 04103 Leipzig Germany
| | - T.‐L. Ashman
- Department of Biological Sciences University of Pittsburgh Pittsburgh PA15260 USA
| | - J. M. Bennett
- Institute of Biology Martin Luther University Halle‐Wittenberg Am Kirchtor 1 06108 Halle Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Deutscher Platz 5e 04103 Leipzig Germany
| | - J. H. Burns
- Department of Biology Case Western Reserve University Cleveland OH44106‐7080 USA
| | - S. Passonneau
- Institute of Biology Martin Luther University Halle‐Wittenberg Am Kirchtor 1 06108 Halle Germany
- Department Community Ecology Helmholtz Centre for Environmental Research – UFZ Theodor‐Lieser‐Straße 4 06120 Halle Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Deutscher Platz 5e 04103 Leipzig Germany
| | - J. A. Steets
- Department of Plant Biology, Ecology, and Evolution Oklahoma State University Stillwater OK74078 USA
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Meeus I, Pisman M, Smagghe G, Piot N. Interaction effects of different drivers of wild bee decline and their influence on host-pathogen dynamics. CURRENT OPINION IN INSECT SCIENCE 2018; 26:136-141. [PMID: 29764653 DOI: 10.1016/j.cois.2018.02.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/19/2017] [Accepted: 02/02/2018] [Indexed: 05/11/2023]
Abstract
Wild bee decline is a multi-factorial problem, yet it is crucial to understand the impact of a single driver. Hereto the interaction effects of wild bee decline with multiple natural and anthropogenic stressors need to be clear. This is also true for the driver 'pathogens', as stressor induced disturbances of natural host-pathogen dynamics can unbalance settled virulence equilibria. Invasive species, bee domestication, habitat loss, climate changes and insecticides are recognized drivers of wild bee decline, but all influence host-pathogen dynamics as well. Many wild bee pathogens have multiple hosts, which relaxes the host-density limitation of virulence evolution. In conclusion, disturbances of bee-pathogen dynamics can be compared to a game of Russian roulette.
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Affiliation(s)
- Ivan Meeus
- Department of Crop Protection, Ghent University, Ghent, Belgium.
| | - Matti Pisman
- Department of Crop Protection, Ghent University, Ghent, Belgium
| | - Guy Smagghe
- Department of Crop Protection, Ghent University, Ghent, Belgium
| | - Niels Piot
- Department of Crop Protection, Ghent University, Ghent, Belgium
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35
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Koch H, Stevenson PC. Do linden trees kill bees? Reviewing the causes of bee deaths on silver linden ( Tilia tomentosa). Biol Lett 2017; 13:rsbl.2017.0484. [PMID: 28954857 DOI: 10.1098/rsbl.2017.0484] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 09/01/2017] [Indexed: 11/12/2022] Open
Abstract
For decades, linden trees (basswoods or lime trees), and particularly silver linden (Tilia tomentosa), have been linked to mass bee deaths. This phenomenon is often attributed to the purported occurrence of the carbohydrate mannose, which is toxic to bees, in Tilia nectar. In this review, however, we conclude that from existing literature there is no experimental evidence for toxicity to bees in linden nectar. Bee deaths on Tilia probably result from starvation, owing to insufficient nectar resources late in the tree's flowering period. We recommend ensuring sufficient alternative food sources in cities during late summer to reduce bee deaths on silver linden. Silver linden metabolites such as floral volatiles, pollen chemistry and nectar secondary compounds remain underexplored, particularly their toxic or behavioural effects on bees. Some evidence for the presence of caffeine in linden nectar may mean that linden trees can chemically deceive foraging bees to make sub-optimal foraging decisions, in some cases leading to their starvation.
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Affiliation(s)
| | - Philip C Stevenson
- Royal Botanic Gardens, Kew, Surrey, UK.,Natural Resources Institute, University of Greenwich, Kent, UK
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36
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Charlebois JA, Sargent RD. No consistent pollinator-mediated impacts of alien plants on natives. Ecol Lett 2017; 20:1479-1490. [PMID: 28901037 DOI: 10.1111/ele.12831] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 06/08/2017] [Accepted: 07/31/2017] [Indexed: 11/28/2022]
Abstract
The introduction of an alien plant is widely assumed to have negative consequences for the pollinator-mediated fitness of nearby natives. Indeed, a number of studies, including a highly cited meta-analysis, have concluded that the trend for such interactions is competitive. Here we provide evidence that publication bias and study design have obscured our ability to assess the pollinator-mediated impacts of alien plants. In a meta-analysis of 76 studies, we demonstrate that alien/native status does not predict the outcome of pollinator-mediated interactions among plants. Moreover, we found no evidence that similarity in floral traits or phylogenetic distance between species pairs influences the outcome of pollinator-mediated interactions. Instead, we report that aspects of study design, such as distance between the control and nearest neighbour, and/or the arrangement of study plants better predict the impact of a neighbour than does alien/native status. Our study sheds new light on the role that publication bias and experimental design play in the evaluation of key patterns in ecology. We conclude that, due to the absence of clear, generalisable pollinator-mediated impacts of alien species, management schemes should base decisions on community-wide assessments of the impacts of individual alien plant species, and not solely on alien/native status itself.
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Affiliation(s)
| | - Risa D Sargent
- Department of Biology, University of Ottawa, Ottawa, ON, Canada
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37
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Nicolson SW, Wright GA. Plant–pollinator interactions and threats to pollination: perspectives from the flower to the landscape. Funct Ecol 2017. [DOI: 10.1111/1365-2435.12810] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Susan W. Nicolson
- Department of Zoology & Entomology University of Pretoria Private Bag X20 Hatfield0028 South Africa
| | - Geraldine A. Wright
- Centre for Behaviour and Evolution Institute of Neuroscience Newcastle University Newcastle upon TyneNE1 7RU UK
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