J 2022

Dry phase duration and periodicity alter clitellate communities in central European intermittent streams

SCHENKOVÁ, Jana, Michal HORSÁK, Marek POLÁŠEK and Petr PAŘIL

Basic information

Original name

Dry phase duration and periodicity alter clitellate communities in central European intermittent streams

Authors

SCHENKOVÁ, Jana (203 Czech Republic, guarantor, belonging to the institution), Michal HORSÁK (203 Czech Republic, belonging to the institution), Marek POLÁŠEK (203 Czech Republic, belonging to the institution) and Petr PAŘIL (203 Czech Republic, belonging to the institution)

Edition

Hydrobiologia, Springer, 2022, 0018-8158

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10617 Marine biology, freshwater biology, limnology

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.600

RIV identification code

RIV/00216224:14310/22:00129125

Organization unit

Faculty of Science

UT WoS

000825176500003

Keywords in English

Oligochaetes; Leeches; Drying; Beta diversity; Semiaquatic species; Climate change

Tags

Tags

International impact, Reviewed
Změněno: 1/12/2022 17:03, Mgr. Marie Šípková, DiS.

Abstract

V originále

Small streams in the temperate continental region of central Europe have been recently exposed to frequent drying. We investigated the effects of drying on clitellate communities in 25 small streams evenly distributed along the gradient of flow intermittence. We observed that the community exposed to both irregular and periodic drying could maintain local species diversity. However, significant differences in clitellate species composition were observed between perennial, irregularly drying, and intermittent streams. The effect of drying was even stronger in intermittent streams, where significantly lower beta diversity was observed compared to perennial streams. The most important changes in clitellate composition were controlled by water temperature and geographical variables in perennial streams, while streams affected by drying were controlled by climate, with high mean July air temperature and low annual precipitation sums amplifying the effect. The abundance of semiaquatic species was also affected by the periodicity of the dry phase, with their proportion predicted in the regression tree analysis to be 11% in perennial and irregularly drying streams, and 40% in periodically drying streams. The observed changes in clitellate community structure suggest a gradual adaptation to increasing drying severity, in which sensitive species (e.g., rheobionts) may be replaced by desiccation-tolerant and semiaquatic species.

Links

GA20-17305S, research and development project
Name: Klimaticky podmíněná homogenizace vodních bezobratlých testovaná na třech modelových systémech a historických datech
Investor: Czech Science Foundation