Generalist carabid beetles are more malacophagous than
previously recognized and cause diversified types of shell
damage

J 2024

Generalist carabid beetles are more malacophagous than previously recognized and cause diversified types of shell damage

NĚMEC, Tomáš a Michal HORSÁK

Základní údaje

Originální název

Generalist carabid beetles are more malacophagous than previously recognized and cause diversified types of shell damage

Autoři

NĚMEC, Tomáš a Michal HORSÁK

Vydání

Journal of Zoology, Hoboken, Wiley, 2024, 0952-8369

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10613 Zoology

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 1.600

Kód RIV

RIV/00216224:14310/24:00137306

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1111/jzo.13179

UT WoS

001271774600001

EID Scopus

2-s2.0-85195470259

Klíčová slova anglicky

land snail; shell damage; body size; malacophagous specialists; generalist predators; Carabidae

Štítky

14314020, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 20. 3. 2025 11:06, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Although most carabids are carnivorous generalists, some species show dietary specializations such as malacophagy, which is characterized by two main strategies of snail predation: entering the shell or breaking it. The shell-breaking strategy has been well studied in the malacophagous specialists of the tribe Licinini. However, little is known about the ability of other carabids to feed on snails and, in particular, to use the shell-breaking strategy. Therefore, the main objective of this study was to investigate the ability of various generalist carabid species to feed on snails under laboratory conditions. We recorded 723 instances of predation in 89 of 180 carabid individuals (representing 23 of 33 species); all of them were exclusively shell-breaking attacks. While carabids mostly favoured individuals <8 mm as prey, they showed no preference for shell shape. Using a subset of 14 carabid species with a high frequency of snail predation, we found significant differences between the predation rates of carabid species depending on their body size using GLMMs. This study revealed that many generalist carabids can indeed feed on snails by breaking the shell, but predation rates were highly inconsistent among individual species. Shell-breaking patterns of generalists differed markedly from those of malacophagous specialists reported in the literature, as damage parallel to the shell coiling axis occurred more frequently than spiral damage. Our results show that the shell-breaking predation patterns of carabids are closely related to their degree of dietary specialization on snails and that many generalist carabids frequently accept snails as their prey.

Návaznosti

GA23-05132S, projekt VaV

Název: Nové kalibrační a indikační systémy pro rekonstrukci holocenního klimatu zohledňující lokální vývoj

Investor: Grantová agentura ČR, Nové kalibrační a indikační systémy pro rekonstrukci holocenního klimatu zohledňující lokální vývoj

Citovat

NĚMEC, Tomáš a Michal HORSÁK. Generalist carabid beetles are more malacophagous than previously recognized and cause diversified types of shell damage. Journal of Zoology. Hoboken: Wiley, 2024, roč. 324, č. 1, s. 11-20. ISSN 0952-8369. Dostupné z: https://doi.org/10.1111/jzo.13179.

@article{2441540,
   author = {Němec, Tomáš and Horsák, Michal},
   article_location = {Hoboken},
   article_number = {1},
   doi = {https://doi.org/10.1111/jzo.13179},
   keywords = {land snail; shell damage; body size; malacophagous specialists; generalist predators; Carabidae},
   language = {eng},
   issn = {0952-8369},
   journal = {Journal of Zoology},
   title = {Generalist carabid beetles are more malacophagous than previously recognized and cause diversified types of shell damage},
   url = {https://doi.org/10.1111/jzo.13179},
   volume = {324},
   year = {2024}
}

TY  - JOUR
ID  - 2441540
AU  - Němec, Tomáš - Horsák, Michal
PY  - 2024
TI  - Generalist carabid beetles are more malacophagous than previously recognized and cause diversified types of shell damage
JF  - Journal of Zoology
VL  - 324
IS  - 1
SP  - 11-20
EP  - 11-20
PB  - Wiley
SN  - 09528369
KW  - land snail
KW  - shell damage
KW  - body size
KW  - malacophagous specialists
KW  - generalist predators
KW  - Carabidae
UR  - https://doi.org/10.1111/jzo.13179
N2  - Although most carabids are carnivorous generalists, some species show dietary specializations such as malacophagy, which is characterized by two main strategies of snail predation: entering the shell or breaking it. The shell-breaking strategy has been well studied in the malacophagous specialists of the tribe Licinini. However, little is known about the ability of other carabids to feed on snails and, in particular, to use the shell-breaking strategy. Therefore, the main objective of this study was to investigate the ability of various generalist carabid species to feed on snails under laboratory conditions. We recorded 723 instances of predation in 89 of 180 carabid individuals (representing 23 of 33 species); all of them were exclusively shell-breaking attacks. While carabids mostly favoured individuals <8 mm as prey, they showed no preference for shell shape. Using a subset of 14 carabid species with a high frequency of snail predation, we found significant differences between the predation rates of carabid species depending on their body size using GLMMs. This study revealed that many generalist carabids can indeed feed on snails by breaking the shell, but predation rates were highly inconsistent among individual species. Shell-breaking patterns of generalists differed markedly from those of malacophagous specialists reported in the literature, as damage parallel to the shell coiling axis occurred more frequently than spiral damage. Our results show that the shell-breaking predation patterns of carabids are closely related to their degree of dietary specialization on snails and that many generalist carabids frequently accept snails as their prey.
ER  -

NĚMEC, Tomáš a Michal HORSÁK. Generalist carabid beetles are more malacophagous than previously recognized and cause diversified types of shell damage. \textit{Journal of Zoology}. Hoboken: Wiley, 2024, roč.~324, č.~1, s.~11-20. ISSN~0952-8369. Dostupné z: https://doi.org/10.1111/jzo.13179.

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