Drying in newly intermittent rivers leads to higher variability
of invertebrate communities

J 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.

Basic information

Original name

Drying in newly intermittent rivers leads to higher variability of invertebrate communities

Authors

CRABOT, Julie (250 France, guarantor), Marek POLÁŠEK (203 Czech Republic, belonging to the institution), Bertrand LAUNAY (250 France), Petr PAŘIL (203 Czech Republic, belonging to the institution) and Thibault DATRY (250 France)

Edition

Freshwater Biology, Blackwell Scientific Publications, 2021, 0046-5070

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10617 Marine biology, freshwater biology, limnology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 3.538

RIV identification code

RIV/00216224:14310/21:00118811

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1111/fwb.13673

UT WoS

000603477600001

Keywords in English

anthropogenic disturbance; aquatic invertebrates; functional diversity; temporary rivers; beta-diversity

Abstract

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.

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

LTC17017, research and development project

Name: Validace bioindikačních metod jako nástrojů pro udržitelný management středoevropských vysychavých toků a přenos těchto metod do praxe (Acronym: InterStreaM)

Investor: Ministry of Education, Youth and Sports of the CR, INTER-COST

7AMB17FR011, research and development project

Name: Dopady vysychání na říční společenstva evropských toků z hlediska západo-východního gradientu (Acronym: DRYGRAD)

Investor: Ministry of Education, Youth and Sports of the CR

Citovat

CRABOT, Julie, Marek POLÁŠEK, Bertrand LAUNAY, Petr PAŘIL and Thibault DATRY. Drying in newly intermittent rivers leads to higher variability of invertebrate communities. Freshwater Biology. Blackwell Scientific Publications, 2021, vol. 66, No 4, p. 730-744. ISSN 0046-5070. Available from: https://dx.doi.org/10.1111/fwb.13673.

@article{1721476,
   author = {Crabot, Julie and Polášek, Marek and Launay, Bertrand and Pařil, Petr and Datry, Thibault},
   article_number = {4},
   doi = {http://dx.doi.org/10.1111/fwb.13673},
   keywords = {anthropogenic disturbance; aquatic invertebrates; functional diversity; temporary rivers; beta-diversity},
   language = {eng},
   issn = {0046-5070},
   journal = {Freshwater Biology},
   title = {Drying in newly intermittent rivers leads to higher variability of invertebrate communities},
   url = {https://doi.org/10.1111/fwb.13673},
   volume = {66},
   year = {2021}
}

TY  - JOUR
ID  - 1721476
AU  - Crabot, Julie - Polášek, Marek - Launay, Bertrand - Pařil, Petr - Datry, Thibault
PY  - 2021
TI  - Drying in newly intermittent rivers leads to higher variability of invertebrate communities
JF  - Freshwater Biology
VL  - 66
IS  - 4
SP  - 730-744
EP  - 730-744
PB  - Blackwell Scientific Publications
SN  - 00465070
KW  - anthropogenic disturbance
KW  - aquatic invertebrates
KW  - functional diversity
KW  - temporary rivers
KW  - beta-diversity
UR  - https://doi.org/10.1111/fwb.13673
N2  - 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.
ER  -

CRABOT, Julie, Marek POLÁŠEK, Bertrand LAUNAY, Petr PAŘIL and Thibault DATRY. Drying in newly intermittent rivers leads to higher variability of invertebrate communities. \textit{Freshwater Biology}. Blackwell Scientific Publications, 2021, vol.~66, No~4, p.~730-744. ISSN~0046-5070. Available from: https://dx.doi.org/10.1111/fwb.13673.

Detailed Information on Publication Record