Detailed Information on Publication Record
2020
Does predator abundance influence species diversity of equilibrium macroinvertebrate assemblages in spring fens?
ZHAI, Marie, Vít SYROVÁTKA, Jindřiška BOJKOVÁ, Vanda ŠORFOVÁ, Vendula POLÁŠKOVÁ et. al.Basic information
Original name
Does predator abundance influence species diversity of equilibrium macroinvertebrate assemblages in spring fens?
Authors
ZHAI, Marie (203 Czech Republic, belonging to the institution), Vít SYROVÁTKA (203 Czech Republic, belonging to the institution), Jindřiška BOJKOVÁ (203 Czech Republic, belonging to the institution), Vanda ŠORFOVÁ (203 Czech Republic, belonging to the institution), Vendula POLÁŠKOVÁ (203 Czech Republic, belonging to the institution), Jana SCHENKOVÁ (203 Czech Republic, belonging to the institution) and Michal HORSÁK (203 Czech Republic, guarantor, belonging to the institution)
Edition
Freshwater Biology, Hoboken, Wiley, 2020, 0046-5070
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10617 Marine biology, freshwater biology, limnology
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 3.809
RIV identification code
RIV/00216224:14310/20:00114137
Organization unit
Faculty of Science
UT WoS
000513111600001
Keywords in English
biotic interactions; groundwater-fed habitat; invertebrates; predation; species diversity
Tags
Tags
International impact, Reviewed
Změněno: 20/11/2020 14:15, Mgr. Marie Šípková, DiS.
Abstract
V originále
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.
Links
| GA16-03881S, research and development project |
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