2021
Drying in newly intermittent rivers leads to higher variability of invertebrate communities
CRABOT, Julie, Marek POLÁŠEK, Bertrand LAUNAY, Petr PAŘIL, Thibault DATRY et. al.Základní údaje
Originální název
Drying in newly intermittent rivers leads to higher variability of invertebrate communities
Autoři
CRABOT, Julie (250 Francie, garant), Marek POLÁŠEK (203 Česká republika, domácí), Bertrand LAUNAY (250 Francie), Petr PAŘIL (203 Česká republika, domácí) a Thibault DATRY (250 Francie)
Vydání
Freshwater Biology, Blackwell Scientific Publications, 2021, 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: 3.538
Kód RIV
RIV/00216224:14310/21:00118811
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000603477600001
Klíčová slova anglicky
anthropogenic disturbance; aquatic invertebrates; functional diversity; temporary rivers; beta-diversity
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 20. 4. 2021 17:48, Mgr. Marie Šípková, DiS.
Anotace
V originále
Aquatic invertebrate communities inhabiting intermittent rivers that are characterised by recurrent drying events (flow cessation or complete disappearance of surface water) often show rapid recovery upon flow resumption. Such rapid recovery is possible thanks to specific resistance and resilience traits that species adapted to river drying often exhibit. However, differences in community response to drying can be expected between historically drying (HD) networks -those IRs with a long history of flow intermittence-and recently drying (RD) networks, where drying is a novel, often human-induced, phenomenon. The invertebrate species found in RD networks may lack the adaptations that are known to facilitate quick community recovery upon rewetting and could thus be dramatically affected by drying. Unfortunately, the responses of aquatic communities in RD networks are still poorly explored, limiting our capacity to predict and mitigate future biodiversity changes. Here, we compared the responses of aquatic invertebrate communities to drying in nine pairs of intermittent and perennial river reaches from HD networks across France and nine pairs from RD networks across the Czech Republic. Using both taxonomic and functional perspectives, differences in alpha- and beta-diversity patterns between perennial and intermittent sites were evaluated separately for HD and RD groups, and before and after drying over several years. Drying had stronger effects on taxonomic richness in RD compared to HD networks. In addition, drying greatly altered spatial and temporal beta-diversity in RD networks, but it marginally affected beta-diversity in HD networks. Communities of HD networks showed a higher proportion of resistant taxa than RD networks. These results suggest that recent drying can have, at least on a short time scale (i.e. years), stronger effects on aquatic communities in RD networks compared to those in HD networks. Because drying duration, frequency, and spatial extent are increasing with climate change, RD networks could soon reach tipping points, calling for long-term monitoring of biodiversity in these novel ecosystems.
Návaznosti
| GA20-17305S, projekt VaV |
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| LTC17017, projekt VaV |
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| 7AMB17FR011, projekt VaV |
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