Does predation by the omnivorous Gammarus fossarum affect
small-scale distribution of macroinvertebrates? A case study
from a calcareous spring fen

J 2020

Does predation by the omnivorous Gammarus fossarum affect small-scale distribution of macroinvertebrates? A case study from a calcareous spring fen

GEORGIEVOVÁ, Berenika, Marie ZHAI, Jindřiška BOJKOVÁ, Vanda ŠORFOVÁ, Vít SYROVÁTKA et. al.

Basic information

Original name

Does predation by the omnivorous Gammarus fossarum affect small-scale distribution of macroinvertebrates? A case study from a calcareous spring fen

Authors

GEORGIEVOVÁ, Berenika (703 Slovakia, belonging to the institution), Marie ZHAI (203 Czech Republic, belonging to the institution), Jindřiška BOJKOVÁ (203 Czech Republic, belonging to the institution), Vanda ŠORFOVÁ (203 Czech Republic, belonging to the institution), Vít SYROVÁTKA (203 Czech Republic, belonging to the institution), Vendula POLÁŠKOVÁ (203 Czech Republic, belonging to the institution), Jana SCHENKOVÁ (203 Czech Republic, belonging to the institution) and Michal HORSÁK (203 Czech Republic, guarantor, belonging to the institution)

Edition

International Review of Hydrobiology, Wiley, 2020, 1434-2944

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10618 Ecology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 2.160

RIV identification code

RIV/00216224:14310/20:00114396

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1002/iroh.202002046

UT WoS

000550476000001

Keywords in English

amphipods; macroinvertebrates; omnivory; predation; spring fens

Abstract

V originále

Our understanding of functional roles of aquatic invertebrate taxa is still limited even for common species, although being crucial for explanations of patterns observed in natural communities. As only recently shown, the common native European amphipodGammarus fossarum, traditionally treated as a shredder of leaf litter, shows predatory behaviour which may influence the composition of invertebrate assemblages. However, the evidence for the predation effect ofG. fossarumon natural assemblages at the within-site scale is still lacking. Therefore, we collected 50 quantitative samples of macroinvertebrates along with the important environmental variables within a heterogeneous calcareous spring fen. Using linear regression, we explored the relationships between the abundance ofG. fossarum(separately adult and juvenile) and the abundance and number of taxa for two groups of invertebrates differing in their susceptibility to predation, (a) hard-bodied taxa with protective body structures, such as shells and calcified cuticles, and (b) soft-bodied taxa without those protections. We separated the effect ofG. fossarumfrom that of environmental conditions using variation partitioning. Our results showed that only the abundance of soft-bodied invertebrates was negatively correlated with the abundance of adultG. fossarum. However, the proportion of variation explained purely by predation (5.5%) was much lower than the one explained by the environment (33.8%). BothG. fossarumand soft-bodied invertebrates were positively associated with organic matter. Although hard-bodied invertebrates consisted of only a few taxa, they were more numerous than soft-bodied invertebrates, and only environmental control was confirmed for them. Despite the limitations of the used correlative approach, we conclude thatG. fossarumcan significantly control the abundance of vulnerable taxa in natural assemblages. Its predatory effects, however, may be relatively low and easily confounded by the effect of environmental control.

Links

GA16-03881S, research and development project

Name: Koexistence vodních bezobratlých na prameništních slatiništích: úloha abiotické heterogenity a biotických interakcí na regionální a lokální škále

Investor: Czech Science Foundation

GA20-17305S, research and development project

Name: Klimaticky podmíněná homogenizace vodních bezobratlých testovaná na třech modelových systémech a historických datech

Investor: Czech Science Foundation

Citovat

GEORGIEVOVÁ, Berenika, Marie ZHAI, Jindřiška BOJKOVÁ, Vanda ŠORFOVÁ, Vít SYROVÁTKA, Vendula POLÁŠKOVÁ, Jana SCHENKOVÁ and Michal HORSÁK. Does predation by the omnivorous Gammarus fossarum affect small-scale distribution of macroinvertebrates? A case study from a calcareous spring fen. International Review of Hydrobiology. Wiley, 2020, vol. 105, 5-6, p. 162-170. ISSN 1434-2944. Available from: https://dx.doi.org/10.1002/iroh.202002046.

@article{1687250,
   author = {Georgievová, Berenika and Zhai, Marie and Bojková, Jindřiška and Šorfová, Vanda and Syrovátka, Vít and Polášková, Vendula and Schenková, Jana and Horsák, Michal},
   article_number = {5-6},
   doi = {http://dx.doi.org/10.1002/iroh.202002046},
   keywords = {amphipods; macroinvertebrates; omnivory; predation; spring fens},
   language = {eng},
   issn = {1434-2944},
   journal = {International Review of Hydrobiology},
   title = {Does predation by the omnivorous Gammarus fossarum affect small-scale distribution of macroinvertebrates? A case study from a calcareous spring fen},
   url = {https://onlinelibrary.wiley.com/doi/10.1002/iroh.202002046},
   volume = {105},
   year = {2020}
}

TY  - JOUR
ID  - 1687250
AU  - Georgievová, Berenika - Zhai, Marie - Bojková, Jindřiška - Šorfová, Vanda - Syrovátka, Vít - Polášková, Vendula - Schenková, Jana - Horsák, Michal
PY  - 2020
TI  - Does predation by the omnivorous Gammarus fossarum affect small-scale distribution of macroinvertebrates? A case study from a calcareous spring fen
JF  - International Review of Hydrobiology
VL  - 105
IS  - 5-6
SP  - 162-170
EP  - 162-170
PB  - Wiley
SN  - 14342944
KW  - amphipods
KW  - macroinvertebrates
KW  - omnivory
KW  - predation
KW  - spring fens
UR  - https://onlinelibrary.wiley.com/doi/10.1002/iroh.202002046
L2  - https://onlinelibrary.wiley.com/doi/10.1002/iroh.202002046
N2  - Our understanding of functional roles of aquatic invertebrate taxa is still limited even for common species, although being crucial for explanations of patterns observed in natural communities. As only recently shown, the common native European amphipodGammarus fossarum, traditionally treated as a shredder of leaf litter, shows predatory behaviour which may influence the composition of invertebrate assemblages. However, the evidence for the predation effect ofG. fossarumon natural assemblages at the within-site scale is still lacking. Therefore, we collected 50 quantitative samples of macroinvertebrates along with the important environmental variables within a heterogeneous calcareous spring fen. Using linear regression, we explored the relationships between the abundance ofG. fossarum(separately adult and juvenile) and the abundance and number of taxa for two groups of invertebrates differing in their susceptibility to predation, (a) hard-bodied taxa with protective body structures, such as shells and calcified cuticles, and (b) soft-bodied taxa without those protections. We separated the effect ofG. fossarumfrom that of environmental conditions using variation partitioning. Our results showed that only the abundance of soft-bodied invertebrates was negatively correlated with the abundance of adultG. fossarum. However, the proportion of variation explained purely by predation (5.5%) was much lower than the one explained by the environment (33.8%). BothG. fossarumand soft-bodied invertebrates were positively associated with organic matter. Although hard-bodied invertebrates consisted of only a few taxa, they were more numerous than soft-bodied invertebrates, and only environmental control was confirmed for them. Despite the limitations of the used correlative approach, we conclude thatG. fossarumcan significantly control the abundance of vulnerable taxa in natural assemblages. Its predatory effects, however, may be relatively low and easily confounded by the effect of environmental control.
ER  -

GEORGIEVOVÁ, Berenika, Marie ZHAI, Jindřiška BOJKOVÁ, Vanda ŠORFOVÁ, Vít SYROVÁTKA, Vendula POLÁŠKOVÁ, Jana SCHENKOVÁ and Michal HORSÁK. Does predation by the omnivorous Gammarus fossarum affect small-scale distribution of macroinvertebrates? A case study from a calcareous spring fen. \textit{International Review of Hydrobiology}. Wiley, 2020, vol.~105, 5-6, p.~162-170. ISSN~1434-2944. Available from: https://dx.doi.org/10.1002/iroh.202002046.

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