Habitat filtering determines the functional niche occupancy of plant communities worldwide

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897552" target="_blank" >RIV/60076658:12310/18:43897552 - isvavai.cz</a>

Result on the web

<a href="https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2745.12802" target="_blank" >https://besjournals.onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2745.12802</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/1365-2745.12802" target="_blank" >10.1111/1365-2745.12802</a>

Result language

angličtina

Original language name

Habitat filtering determines the functional niche occupancy of plant communities worldwide

Original language description

How the patterns of niche occupancy vary from species-poor to species-rich communities is a fundamental question in ecology that has a central bearing on the processes that drive patterns of biodiversity. As species richness increases, habitat filtering should constrain the expansion of total niche volume, while limiting similarity should restrict the degree of niche overlap between species. Here, by explicitly incorporating intraspecific trait variability, we investigate the relationship between functional niche occupancy and species richness at the global scale. We assembled 21 datasets worldwide, spanning tropical to temperate biomes and consisting of 313 plant communities representing different growth forms. We quantified three key niche occupancy components (the total functional volume, the functional overlap between species and the average functional volume per species) for each community, related each component to species richness, and compared each component to the null expectations. As species richness increased, communities were more functionally diverse (an increase in total functional volume), and species overlapped more within the community (an increase in functional overlap) but did not more finely divide the functional space (no decline in average functional volume). Null model analyses provided evidence for habitat filtering (smaller total functional volume than expectation), but not for limiting similarity (larger functional overlap and larger average functional volume than expectation) as a process driving the pattern of functional niche occupancy.Synthesis. Habitat filtering is a widespread process driving the pattern of functional niche occupancy across plant communities and coexisting species tend to be more functionally similar rather than more functionally specialized. Our results indicate that including intraspecific trait variability will contribute to a better understanding of the processes driving patterns of functional niche occupancy.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

<a href="/en/project/EE2.3.30.0006" target="_blank" >EE2.3.30.0006: The Creation of Postdoc Positions at the University of South Bohemia and the Support of Itnersectoral Mobility by Expert Stays at the Foreign Leading R&D Institutions</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Journal of Ecology

ISSN

0022-0477

e-ISSN

—

Volume of the periodical

106

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

1001-1009

UT code for WoS article

000430123800018

EID of the result in the Scopus database

2-s2.0-85042661231