Shifts in the importance of the species pool and environmental controls of epiphytic bryophyte richness across multiple scales

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43898446" target="_blank" >RIV/60076658:12310/18:43898446 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/content/pdf/10.1007%2Fs00442-018-4066-x.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007%2Fs00442-018-4066-x.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00442-018-4066-x" target="_blank" >10.1007/s00442-018-4066-x</a>

Result language

angličtina

Original language name

Shifts in the importance of the species pool and environmental controls of epiphytic bryophyte richness across multiple scales

Original language description

Species richness is influenced by a nested set of environmental factors, but how do these factors interact across several scales? Our main aim is to disentangle the relative importance of environmental filters and the species pool on the richness of epiphytic bryophytes across spatial scales. To do so, we sampled epiphytic bryophytes in 43 oak forests across the northwest of the Iberian Peninsula. As predictors we used climate, descriptors of forest structure and micro-environment. We applied structural equation modeling to relate these variables with richness and cover at three scales: locality (forest), stand (three stands per forest), and sample (a quadrate in a tree). We assumed top-down relationships, so that large-scale variables influenced lower scale variables, and in which cover directly influenced richness. Richness at the next larger scale (locality to stand and stand to sample) is considered a surrogate of the species pool and included as a predictor of richness at the next smaller scale. Environmental variables explain locality richness, but as we decrease the spatial scale, its importance decreases and the dependence on species pool increases. In addition, we found unexpected bottom-up relationships (between micro-scale environment to locality richness). Our results point to the scale dependence of niche vs. neutral processes: niche processes are important at the locality (forest) scale, while neutral processes are significant at the small (sample) scale. We propose a modified conceptualization of the factors influencing biodiversity at different spatial scales by adding links across different scales (between micro-environment and locality-scale richness in our study).

Czech name

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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

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OECD FORD branch

10618 - Ecology

Project

—

Continuities

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

Oecologia

ISSN

0029-8549

e-ISSN

—

Volume of the periodical

186

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

805-816

UT code for WoS article

000426320400019

EID of the result in the Scopus database

2-s2.0-85040785675