Stable isotope analysis suggests low trophic niche partitioning among co-occurring land snail species in a floodplain forest
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F21%3A00118916" target="_blank" >RIV/00216224:14310/21:00118916 - isvavai.cz</a>
Result on the web
<a href="https://zslpublications.onlinelibrary.wiley.com/doi/10.1111/jzo.12859" target="_blank" >https://zslpublications.onlinelibrary.wiley.com/doi/10.1111/jzo.12859</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jzo.12859" target="_blank" >10.1111/jzo.12859</a>
Alternative languages
Result language
angličtina
Original language name
Stable isotope analysis suggests low trophic niche partitioning among co-occurring land snail species in a floodplain forest
Original language description
Land snails are abundant invertebrates in many terrestrial ecosystems, playing an essential role in food webs and nutrient cycling. Although snails are commonly considered general grazers with a strong tendency to omnivory, their foraging strategy is well documented only for a few species. Virtually no data exist on trophic niche partitioning within snail assemblages. To fill this gap, we analyzed naturally occurring stable isotope (delta C-13, delta N-15), an approach widely applied in ecological research, but only rarely in terrestrial snail studies. We collected ten individuals of the dominant co-occurring land snails (i.e., Aegopinella nitidula, Fruticicola fruticum, Oxyloma elegans, Succinea putris, Trochulus villosulus and Zonitoides nitidus) in a floodplain forest floor, along with their potential food sources and other invertebrates. All species, except for A. nitidula, showed high intraspecific variation in isotope signatures, indicating their opportunistic feeding behavior. Such a high intraspecific variation combined with the active movement range of all the species allows switching between food sources based on their accessibility. We observed that the trophic niches of the studied species highly overlapped, except for Z. nitidus. This suggests that trophic niche compartmentalization among co-occurring species does not seem to be the mechanism to avoid competition for food. Virtually unlimited resources for snail food are assumed to explain the coexistence of many species in high-density populations. Our results add to this concept of assembly rules in snail species by the finding of highly variable and overlapping trophic niches among the majority of the studied species.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10613 - Zoology
Result continuities
Project
<a href="/en/project/GA20-18827S" target="_blank" >GA20-18827S: Boreal land snail diversification promoted by isolation through space and time</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Zoology
ISSN
0952-8369
e-ISSN
1469-7998
Volume of the periodical
313
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
297-306
UT code for WoS article
000608819800001
EID of the result in the Scopus database
2-s2.0-85100180391