2023
Effects of thermal stability on microcrustacean assemblages in spring fens
VÝRAVSKÝ, David; Dana KLÍMOVÁ HŘÍVOVÁ; Jindřiška BOJKOVÁ; Michal HORSÁK; Marie ZHAI et al.Základní údaje
Originální název
Effects of thermal stability on microcrustacean assemblages in spring fens
Autoři
Vydání
Inland Waters, Taylor and Francis Ltd. 2023, 2044-2041
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10618 Ecology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.700
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/23:00134077
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
climate change; copepods; groundwater-dependent habitats; meiofauna; ostracods; water temperature
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 25. 5. 2023 08:43, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
Springs are considered relatively stable aquatic environments and possible thermal refugia for cold-adapted taxa under climate change. However, permanent and pristine spring fens in the Western Carpathians show between-site variation in thermal stability with significant effects on macroinvertebrate assemblages. In this study, we investigated the impact of the thermal stability on microcrustaceans (Harpacticoida, Ostracoda). We disentangled various parameters of thermal stability, such as mean summer and winter temperatures, annual amplitude, and daily fluctuations, and related these parameters to mesoclimate, vegetation cover, and water table. We found that the relative abundance of cold-stenothermal species decreased significantly with increasing mean water temperature in summer, which had a significant effect on species composition. Surprisingly, ostracods were completely indifferent to thermal stability despite including cold stenotherms and crenobionts, suggesting that these species might have broader thermal tolerance. By contrast, harpacticoids significantly responded to both summer and winter mean temperatures, showing upper and lower limits of thermal tolerance. While vegetation cover significantly suppressed daily fluctuations in summer, no effect of daily fluctuations on microcrustaceans was found. The effect of water table was also significant but independent of thermal stability. We assume that the less thermally stable sites will not support the occurrence of cold-stenothermic harpacticoids as air temperature rises. However, an increase in winter temperatures may result in higher overall abundance of harpacticoids. We discuss how spring fens are probably most threatened by the combination of drought and increasing temperature.
Návaznosti
| GA20-17305S, projekt VaV |
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