Detailed Information on Publication Record
2018
Beta-diversity of central European forests decreases along an elevational gradient due to the variation in local community assembly processes
SABATINI, Francesco Maria, Borja JIMÉNEZ-ALFARO, Sabina BURRASCANO, Andrea LORA, Milan CHYTRÝ et. al.Basic information
Original name
Beta-diversity of central European forests decreases along an elevational gradient due to the variation in local community assembly processes
Authors
SABATINI, Francesco Maria (276 Germany), Borja JIMÉNEZ-ALFARO (724 Spain), Sabina BURRASCANO (380 Italy), Andrea LORA (380 Italy) and Milan CHYTRÝ (203 Czech Republic, guarantor, belonging to the institution)
Edition
Ecography, 2018, 0906-7590
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10619 Biodiversity conservation
Country of publisher
Denmark
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 5.946
RIV identification code
RIV/00216224:14310/18:00101644
Organization unit
Faculty of Science
UT WoS
000434091800015
Keywords in English
PRESENCE-ABSENCE MATRICES; LATITUDINAL GRADIENTS; BIODIVERSITY; DRIVERS; SCALE; MECHANISMS; DATABASES; ALPHA
Tags
International impact, Reviewed
Změněno: 3/2/2019 12:31, prof. RNDr. Milan Chytrý, Ph.D.
Abstract
V originále
Beta-diversity has been repeatedly shown to decline with increasing elevation, but the causes of this pattern remain unclear, partly because they are confounded by coincident variation in alpha- and gamma-diversity. We used 8795 forest vegetation-plot records from the Czech National Phytosociological Database to compare the observed patterns of beta diversity to null-model expectations (beta-deviation) controlling for the effects of alpha- and gamma-diversity. We tested whether beta-diversity patterns along a 1200 m elevation gradient exclusively depend on the effect of varying species pool size, or also on the variation of the magnitude of community assembly mechanisms determining the distribution of species across communities (e.g. environmental filtering, dispersal limitation). The null model we used is a novel extension of an existing null-model designed for presence/absence data and was specifically designed to disrupt the effect of community assembly mechanisms, while retaining some key features of observed communities such as average species richness and species abundance distribution. Analyses were replicated in ten subregions with comparable elevation ranges. Beta-diversity declined along the elevation gradient due to a decrease in gamma-diversity, which was steeper than the decrease in alpha-diversity. This pattern persisted after controlling for alpha- and gamma-diversity variation, and the results were robust when different resampling schemes and diversity metrics were used. We conclude that in temperate forests the pattern of decreasing beta-diversity with elevation does not exclusively depend on variation in species pool size, as has been hypothesized, but also on variation in community assembly mechanisms. The results were consistent across resampling schemes and diversity measures, thus supporting the use of vegetation-plot databases for understanding patterns of beta-diversity at the regional scale.
Links
| GB14-36079G, research and development project |
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