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β-diversity decreases with increasing trophic rank in plant – arthropod food chains on lake islands

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dc.abstract.enContrasting trophic theories of island biogeography try to link spatial patterns in species distribution and richness with dietary preferences, arguing that the spatial turnover of species among habitat patches changes with trophic rank causing a systematic change in the proportion of plants, herbivores, and predators across habitats of different size. Here we test these predictions using quantitative surveys of plants, spiders, and herbivores as well as of omnivorous and predatory ground beetles on undisturbed Polish lake islands. We found decreased proportions of predators and habitat generalists on larger islands. Environmental niches and niche overlap were highest in predators. Variability in environmental niche width among species increased at higher trophic levels. Our results confirm models that predict a decrease in spatial species turnover (β-diversity) with increasing trophic level. We speculate that the major trigger for these differences is a reduced dispersal ability in plants at basal trophic ranks when compared to higher trophic levels.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorTykarski, Piotr
dc.date.accessioned2024-01-26T12:29:17Z
dc.date.available2024-01-26T12:29:17Z
dc.date.issued2018
dc.description.financeNie dotyczy
dc.description.volume8
dc.identifier.doi10.1038/S41598-018-34768-Y
dc.identifier.issn2045-2322
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/126174
dc.identifier.weblinkhttps://www.nature.com/articles/s41598-018-34768-y.pdf
dc.languageeng
dc.relation.ispartofScientific Reports
dc.relation.pages17425 (2018)
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleβ-diversity decreases with increasing trophic rank in plant – arthropod food chains on lake islands
dc.typeJournalArticle
dspace.entity.typePublication