Specific damage recognised on land snail shells as a tool for
studying predation intensity: differences related to habitat
and predator types

J 2019

Specific damage recognised on land snail shells as a tool for studying predation intensity: differences related to habitat and predator types

NĚMEC, Tomáš a Michal HORSÁK

Základní údaje

Originální název

Specific damage recognised on land snail shells as a tool for studying predation intensity: differences related to habitat and predator types

Autoři

NĚMEC, Tomáš a Michal HORSÁK

Vydání

Contributions to Zoology, Leiden, BRILL ACADEMIC PUBLISHERS, 2019, 1383-4517

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10613 Zoology

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 1.242

Kód RIV

RIV/00216224:14310/19:00107646

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1163/18759866-20191402

UT WoS

000488205700002

EID Scopus

2-s2.0-85072966846

Klíčová slova anglicky

attacking behaviour; competition; predation; prey; shell damage; snail

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 24. 3. 2020 17:25, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Shell formation is the main defensive strategy against predation for the majority of snails. Therefore, various predators have had to develop a variety of techniques how to overcome this barrier. As shells can persist in a calcium-rich environment for a long time, specific external or internal traces on shells left by predators indicate whether and who killed the snail. Based on litter samples collected at 30 sites of five different habitat types, the intensity and type of predation were assessed. The minimal predation rate varied between 0.0 and 21%, with an average of 8%. The highest rate was observed at limestone steppes, on average 15%. Beetles were found to be the most common predators of snails; however, predation by snails was more common in calcareous fens. Predation by some vertebrates and dipteran flies was also recognised. To test the role of mouth barriers as a means to reduce predation by carabid beetles that break the shell from an aperture, we analysed the predation rate separately on adult and juvenile shells using 24 populations of the steppe snail Granaria frumentum (Draparnaud, 1801). As expected, carabid beetles chiefly preferred juveniles compared to adult shells (Wilcoxon test, p < 0.001). On the contrary, the parasitoid fly Pherbellia limbata (Meigen, 1830) and Drilus beetles preferred adults. We found that predation by carabid beetles positively increased with prey abundance (R2 = 42.8%, p = 0.021), while no relation was observed for the parasitoid (p = 0.703), likely due to their feeding specialisation.

Návaznosti

GA17-05696S, projekt VaV

Název: Holocenní vývoj evropské bioty mírného pásu: vlivy klimatu, refugií a lokálních faktorů testované na komplexních datech nezávislých proxy

Investor: Grantová agentura ČR, Holocenní vývoj evropské bioty mírného pásu: vlivy klimatu, refugií a lokálních faktorů testované na komplexních datech nezávislých proxy

GA19-01775S, projekt VaV

Název: Současná a budoucí diverzita evropských slatinišť v měnícím se světě

Investor: Grantová agentura ČR, Současná a budoucí diverzita evropských slatinišť v měnícím se světě

Citovat

NĚMEC, Tomáš a Michal HORSÁK. Specific damage recognised on land snail shells as a tool for studying predation intensity: differences related to habitat and predator types. Contributions to Zoology. Leiden: BRILL ACADEMIC PUBLISHERS, 2019, roč. 88, č. 3, s. 277-296. ISSN 1383-4517. Dostupné z: https://doi.org/10.1163/18759866-20191402.

@article{1558037,
   author = {Němec, Tomáš and Horsák, Michal},
   article_location = {Leiden},
   article_number = {3},
   doi = {https://doi.org/10.1163/18759866-20191402},
   keywords = {attacking behaviour; competition; predation; prey; shell damage; snail},
   language = {eng},
   issn = {1383-4517},
   journal = {Contributions to Zoology},
   title = {Specific damage recognised on land snail shells as a tool for studying predation intensity: differences related to habitat and predator types},
   url = {https://brill.com/view/journals/ctoz/88/3/article-p277_277.xml?language=en},
   volume = {88},
   year = {2019}
}

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ID  - 1558037
AU  - Němec, Tomáš - Horsák, Michal
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JF  - Contributions to Zoology
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PB  - BRILL ACADEMIC PUBLISHERS
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KW  - snail
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N2  - Shell formation is the main defensive strategy against predation for the majority of snails. Therefore, various predators have had to develop a variety of techniques how to overcome this barrier. As shells can persist in a calcium-rich environment for a long time, specific external or internal traces on shells left by predators indicate whether and who killed the snail. Based on litter samples collected at 30 sites of five different habitat types, the intensity and type of predation were assessed. The minimal predation rate varied between 0.0 and 21%, with an average of 8%. The highest rate was observed at limestone steppes, on average 15%. Beetles were found to be the most common predators of snails; however, predation by snails was more common in calcareous fens. Predation by some vertebrates and dipteran flies was also recognised. To test the role of mouth barriers as a means to reduce predation by carabid beetles that break the shell from an aperture, we analysed the predation rate separately on adult and juvenile shells using 24 populations of the steppe snail Granaria frumentum (Draparnaud, 1801). As expected, carabid beetles chiefly preferred juveniles compared to adult shells (Wilcoxon test, p < 0.001). On the contrary, the parasitoid fly Pherbellia limbata (Meigen, 1830) and Drilus beetles preferred adults. We found that predation by carabid beetles positively increased with prey abundance (R2 = 42.8%, p = 0.021), while no relation was observed for the parasitoid (p = 0.703), likely due to their feeding specialisation.
ER  -

NĚMEC, Tomáš a Michal HORSÁK. Specific damage recognised on land snail shells as a tool for studying predation intensity: differences related to habitat and predator types. \textit{Contributions to Zoology}. Leiden: BRILL ACADEMIC PUBLISHERS, 2019, roč.~88, č.~3, s.~277-296. ISSN~1383-4517. Dostupné z: https://doi.org/10.1163/18759866-20191402.

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