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.Základní údaje
Originální název
Does predator abundance influence species diversity of equilibrium macroinvertebrate assemblages in spring fens?
Autoři
ZHAI, Marie (203 Česká republika, domácí), Vít SYROVÁTKA (203 Česká republika, domácí), Jindřiška BOJKOVÁ (203 Česká republika, domácí), Vanda ŠORFOVÁ (203 Česká republika, domácí), Vendula POLÁŠKOVÁ (203 Česká republika, domácí), Jana SCHENKOVÁ (203 Česká republika, domácí) a Michal HORSÁK (203 Česká republika, garant, domácí)
Vydání
Freshwater Biology, Hoboken, Wiley, 2020, 0046-5070
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10617 Marine biology, freshwater biology, limnology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.809
Kód RIV
RIV/00216224:14310/20:00114137
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000513111600001
Klíčová slova anglicky
biotic interactions; groundwater-fed habitat; invertebrates; predation; species diversity
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 20. 11. 2020 14:15, Mgr. Marie Šípková, DiS.
Anotace
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.
Návaznosti
GA16-03881S, projekt VaV |
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