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https://hdl.handle.net/1959.11/19546
Title: | A new model for ecological networks using species-level traits | Contributor(s): | Crea, Catherine (author); Ali, R Ayesha (author); Rader, Romina (author) | Publication Date: | 2016 | DOI: | 10.1111/2041-210x.12471 | Handle Link: | https://hdl.handle.net/1959.11/19546 | Abstract: | 1. Recent studies on plant-pollinator networks have focused on explaining network structure through linkage rules, including spatio-temporal overlap, and phenotypic trait or phylogenetic signal complementarity. Few studies, however, have quantified the extent to which functional traits affect the probability of plants and pollinators interacting with each other. 2. Dirichlet-multinomial (DM) regression is a consumer-resource model for the interaction probabilities in a mutualistic network. This flexible model accommodates network heterogeneity through random effects and overdispersion and can estimate the contribution of species-level traits to plant-pollinator interactions. 3. Using artificial networks based on linkage rules and neutrality, we evaluate the performance of DM regression and explore the model's parameter space. We also analyse an empirical network in which the interaction probabilities are modelled by species characteristics. 4. Study results show that such random effects models can provide good fits to observed data. The characteristics pollinators seek in plant species may be better anticipated if species interactions are modelled by the functional traits that drive them. | Publication Type: | Journal Article | Source of Publication: | Methods in Ecology and Evolution, 7(2), p. 232-241 | Publisher: | Wiley-Blackwell Publishing Ltd | Place of Publication: | United Kingdom | ISSN: | 2041-210X | Fields of Research (FoR) 2008: | 070301 Agro-ecosystem Function and Prediction 050202 Conservation and Biodiversity |
Fields of Research (FoR) 2020: | 300402 Agro-ecosystem function and prediction 410401 Conservation and biodiversity |
Socio-Economic Objective (SEO) 2008: | 960504 Ecosystem Assessment and Management of Farmland, Arable Cropland and Permanent Cropland Environments 960804 Farmland, Arable Cropland and Permanent Cropland Flora, Fauna and Biodiversity 960505 Ecosystem Assessment and Management of Forest and Woodlands Environments |
Socio-Economic Objective (SEO) 2020: | 180601 Assessment and management of terrestrial ecosystems 180606 Terrestrial biodiversity 180301 Assessment and management of freshwater ecosystems |
Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
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Appears in Collections: | Journal Article |
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