J 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

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

EID Scopus

Klíčová slova anglicky

climate change; copepods; groundwater-dependent habitats; meiofauna; ostracods; water temperature

Štítky

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
Název: Klimaticky podmíněná homogenizace vodních bezobratlých testovaná na třech modelových systémech a historických datech
Investor: Grantová agentura ČR, Climatically promoted homogenization of aquatic invertebrates tested on three model lotic systems and historical data