Species and functional diversity accumulate differently in mammals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11620%2F16%3A10326918" target="_blank" >RIV/00216208:11620/16:10326918 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/16:10326918

Result on the web

<a href="http://dx.doi.org/10.1111/geb.12471" target="_blank" >http://dx.doi.org/10.1111/geb.12471</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/geb.12471" target="_blank" >10.1111/geb.12471</a>

Result language

angličtina

Original language name

Species and functional diversity accumulate differently in mammals

Original language description

Whether the gradients of global diversity conform to equilibrium or non-equilibrium dynamics remains an unresolved question in ecology and evolution. Here, we evaluate four prominent hypotheses which invoke either equilibrium (more individuals, niche diversity) or non-equilibrium dynamics (diversification rate, evolutionary time) to explain species richness and functional diversity of mammals worldwide. Global. We combine structural equation modelling with simulations to examine whether species richness and functional diversity are in equilibrium with environmental conditions (climate, productivity) or whether they vary with non-equilibrium factors (diversification rates, evolutionary time). We use the newest and most inclusive phylogenetic, distributional and trait data for mammals. We find that species richness and functional diversity are decoupled across multiple regions of the world. While species richness correlates closely with environmental conditions, functional diversity depends mostly on non-equilibrium factors (evolutionary time to overcome niche conservatism). Moreover, functional diversity plateaus with species richness, such that species-rich regions (especially the Neotropics) host many species that are apparently functionally redundant. We conclude that species richness depends on environmental factors while functional diversity depends on the evolutionary history of the region. Our work further challenges the classic notion that highly productive regions host more species because they offer a great diversity of ecological niches. Instead, they suggest that productive regions offer more resources, which allow more individuals, populations and species to coexist within a region, even when the species are apparently functionally redundant (the more individuals hypothesis).

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EH - Ecology - communities

OECD FORD branch

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Project

<a href="/en/project/GA16-26369S" target="_blank" >GA16-26369S: Are there limits to diversity? Towards an equilibrium theory of biodiversity</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Global Ecology and Biogeography

ISSN

1466-822X

e-ISSN

—

Volume of the periodical

25

Issue of the periodical within the volume

9

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

1119-1130

UT code for WoS article

000383515300008

EID of the result in the Scopus database

2-s2.0-84973115819