2019
Environmental drivers of mollusc assemblage diversity in a system of lowland lentic habitats
LORENCOVÁ, Erika a Michal HORSÁKZákladní údaje
Originální název
Environmental drivers of mollusc assemblage diversity in a system of lowland lentic habitats
Autoři
LORENCOVÁ, Erika a Michal HORSÁK
Vydání
Hydrobiologia, SPRINGER, 2019, 0018-8158
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10617 Marine biology, freshwater biology, limnology
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.385
Kód RIV
RIV/00216224:14310/19:00107429
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000468991500004
EID Scopus
2-s2.0-85064339378
Klíčová slova anglicky
Aquatic molluscs; Diversity patterns; Agriculture land; Lowland landscape; Site heterogeneity; Connectivity
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 29. 4. 2020 10:39, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Freshwater mollusc diversity has repeatedly been found to peak in lowland stagnant waters, which are highly exposed to human-made degradation and the spread of non-native species. Despite the increasing loss of these habitats, little is known about the main predictors of their mollusc diversity patterns. Therefore, we aimed to determine the environmental drivers of mollusc assemblage variation between and within sites by sampling 62 water bodies in the Dyje River floodplain (south-eastern Czechia). We measured 14 environmental variables, categorized as site-specific or plot-specific. Species richness and abundances were analysed by GLM and GEE; species compositional variance was assessed by NMDS and db-RDA ordinations. Mollusc species richness, ranging between 0 and 15 species per site, and abundance sharply decreased towards high trophy sites, with the chlorophyll-a concentration and water pH highly correlated with species counts. Species compositional variation was driven mainly by water trophy and the quality of organic detritus. Site heterogeneity turned out to significantly control local assemblages of molluscs, while the presence of individual species seemed to be filtered by site trophy and the shoreline length. Thus, to maintain high regional diversity of aquatic molluscs in lowland agricultural landscapes, the presence of low trophy sites seems to be essential.
Návaznosti
| GA16-03881S, projekt VaV |
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