2022
DOI: 10.1111/ddi.13636
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Plant–frugivore interactions across the Caribbean islands: Modularity, invader complexes and the importance of generalist species

Abstract: Aim: Mutualistic interactions between plants and animals are fundamental for the maintenance of natural communities and the ecosystem services they provide.However, particularly in human-dominated island ecosystems, introduced species may alter mutualistic interactions. Based on an extensive dataset of plant-frugivore interactions, we mapped and analysed a meta-network across the Caribbean archipelago. Specifically, we searched for subcommunity structure (modularity) and identified the types of species facilit… Show more

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Cited by 9 publications
(5 citation statements)
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“…Consistent with previous studies supporting that generalized frugivores often incorporate exotic plants into their interactions (e.g., Vollstädt et al, 2022), we also found the American pokeweed tended to interact with generalists, both at local (community) and landscape (metacommunity) level (Figure 3c; Appendix S1: Figure S3). Due to generalized feeding strategies, the frugivores of American pokeweed played more important roles in regulating the structure of the regional trophic network and their interactions had higher topological centrality in the spatial metanetwork (Figures 3 and 4), suggesting that they are essential for the maintenance of seed‐dispersal functionality in the fragmented landscape.…”
Section: Discussionsupporting
confidence: 91%
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“…Consistent with previous studies supporting that generalized frugivores often incorporate exotic plants into their interactions (e.g., Vollstädt et al, 2022), we also found the American pokeweed tended to interact with generalists, both at local (community) and landscape (metacommunity) level (Figure 3c; Appendix S1: Figure S3). Due to generalized feeding strategies, the frugivores of American pokeweed played more important roles in regulating the structure of the regional trophic network and their interactions had higher topological centrality in the spatial metanetwork (Figures 3 and 4), suggesting that they are essential for the maintenance of seed‐dispersal functionality in the fragmented landscape.…”
Section: Discussionsupporting
confidence: 91%
“…Species invasions in the Anthropocene are reshaping local ecological communities (Fricke & Svenning, 2020; Vizentin‐Bugoni et al, 2019; Vollstädt et al, 2022), and profoundly affect community compositions and interactions among species (Hui & Richardson, 2019; Sax et al, 2007). During the invasion process, exotic species participate in ecological interactions with native species and impact local ecosystems (Coux et al, 2021; Elton, 1958; Levine et al, 2003), having detrimental effects on biodiversity maintenance and ecosystem functioning (Ehrenfeld, 2010; Simberloff et al, 2013).…”
Section: Introductionmentioning
confidence: 99%
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“…This means that the dominant and rare frugivores interacted by and large with the fruits of the same plant species. The nested structure of our interaction networks is thus like most other frugivory networks documented elsewhere [52][53][54]. Still, it is worth mentioning that in the most species-rich bird communities of Moyobamba and Oxapampa, some pairwise interactions appeared to be specialized.…”
Section: (E) Niche Overlap and Resource Partitioningsupporting
confidence: 69%