J 2018

The Chironomidae of the Western Carpathian helocrenes: Metacommunity structuring and its drivers in unique habitats

ŠORFOVÁ, Vanda a Vít SYROVÁTKA

Základní údaje

Originální název

The Chironomidae of the Western Carpathian helocrenes: Metacommunity structuring and its drivers in unique habitats

Autoři

ŠORFOVÁ, Vanda a Vít SYROVÁTKA

Vydání

Journal of Limnology, 2018, 1129-5767

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10618 Ecology

Stát vydavatele

Itálie

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 1.606

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/18:00101553

Organizační jednotka

Přírodovědecká fakulta

EID Scopus

Klíčová slova anglicky

Chironomidae; springs; metacommunity structuring; biotic interactions; species responses

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 23. 4. 2024 13:07, Mgr. Michal Petr

Anotace

V originále

Springs are unique and vulnerable habitats, which have always been rather out of focus of the scientist interest. Nevertheless, they frequently host very diverse and species-rich assemblages with high proportion of species more or less adapted to their unique environment and can act as biodiversity hotspots in some areas. The Western Carpathian springs are helocrene springs and represent wide variety of different habitat types, from mineral rich sparsely-vegetated or bryophytes-rich covered helocrenes to acidic peaty sites. Such diversification allows the creation of highly diverse assemblages, in which Chironomidae usually dominate in both species richness and abundance. The aim of this study was to provide a comprehensive overview of chironomid assemblages inhabiting the unique environment of spring fens and factors driving the metacommunity structuring and populations of individual taxa. We examined chironomid assemblages of 62 small, treeless helocrenes sites, which are highly isolated from each other by the terrestrial environment constituting dispersal barriers such as the east-west oriented mountain ridges and valleys. The sampling was performed to cover mesohabitat heterogeneity of study sites. Two main mesohabitats were sampled, the plot with flowing water and coarser substratum near water source (the lotic mesohabitat), and water-logged soil with standing water (the lentic mesohabitat). Study sites hosted nearly 100 chironomid taxa, both mesohabitats were inhabited by chironomid assemblages similar in number of species and abundances and the local environment was proved to be the main driver of compositional changes in chironomid assemblages as expected. Moreover, the significant spatial structure of assemblages was found at the lentic mesohabitat, while biotic interactions described by the abundance of Gammarus fossarum and taxa richness and abundances of predators did not significantly contribute to compositional changes in assemblages at any mesohabitat. Nevertheless, taxa-specific responses revealed populations of many taxa significantly affected by biotic interactions, especially at the more stable lotic mesohabitat, which is in concordance with suggested greater importance of biotic interactions at stable environment. Our results emphasized the importance of multilevel approach in community ecology for proper distinction between different mechanisms of metacommunity structuring. Biotic interaction such as competition can result into the same community patterns as environmental filtering, thus the involvement of detailed analyses of species requirements and interactions is necessary.

Návaznosti

GA16-03881S, projekt VaV
Název: Koexistence vodních bezobratlých na prameništních slatiništích: úloha abiotické heterogenity a biotických interakcí na regionální a lokální škále
Investor: Grantová agentura ČR, Koexistence vodních bezobratlých na prameništních slatiništích: úloha abiotické heterogenity a biotických interakcí na regionální a lokální škále