Does predator abundance influence species diversity of equilibrium macroinvertebrate assemblages in spring fens?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F20%3A00114137" target="_blank" >RIV/00216224:14310/20:00114137 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/full/10.1111/fwb.13485" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1111/fwb.13485</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/fwb.13485" target="_blank" >10.1111/fwb.13485</a>
Alternative languages
Result language
angličtina
Original language name
Does predator abundance influence species diversity of equilibrium macroinvertebrate assemblages in spring fens?
Original language description
Predation may significantly control number and density of coexisting species. The effects of predation on species diversity have traditionally been tested in experiments and theoretical models of simple trophic systems. In complex natural ecosystems, however, disentangling multiple sources of variation is difficult. In groundwater-fed environments, a significant effect of predation can be expected due to the relatively stable environmental conditions; however, it has never been properly examined. We analysed species diversity and total abundance of macroinvertebrate assemblages in 48 Western Carpathian spring fens, separately for whole sites and mesohabitat/season, and partitioned the effects of predation intensity from those of environmental variables in robust models using a bootstrapping technique. We verified our results by accounting for taxa resistant to predation. The assumption that predation-mediated coexistence of species is the main mechanism responsible for the relatively species-rich assemblages in the Western Carpathian spring fens was not supported. However, predation may significantly influence abundance of non-predatory species and, under some conditions, it may contribute to explaining patterns in species diversity. The effect of predation did not differ between the mesohabitats with different stability. However, we found higher environmental control in spring and a stronger effect of predators in autumn, which suggests that different mechanisms influence fen assemblages in different seasons. Our study provides a new robust approach how to test the effect of predation on natural macroinvertebrate assemblages. The importance of predation was lower than expected in equilibrium assemblages but it may vary in time.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10617 - Marine biology, freshwater biology, limnology
Result continuities
Project
<a href="/en/project/GA16-03881S" target="_blank" >GA16-03881S: The coexistence of aquatic invertebrates in spring fens: the role of abiotic heterogeneity and biotic interactions at regional and local scale</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
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Freshwater Biology
ISSN
0046-5070
e-ISSN
1365-2427
Volume of the periodical
65
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
987-998
UT code for WoS article
000513111600001
EID of the result in the Scopus database
2-s2.0-85079370531