Cannibalism, self-cannibalism and autotomy in the non-indigenous nudibranch Godiva quadricolor

Macali, Armando; Ferretti, Sara; Scozzafava, Serena; Carere, Claudio

doi:10.1007/s12210-023-01162-4

Cited by 2 publications

(1 citation statement)

References 41 publications

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“…Although aposematism has been shown to reduce predation in several ways (Ruxton et al, 2004) aposematic prey do not always have lower predation than non-aposematic (Carroll & Sherratt, 2013;Seymoure et al, 2018;Yamazaki et al, 2020), resulting more subjected to repetitive and more cautious attacks if compared to its non-aposematic mutants (Sillén-Tullberg 1985;Yamazaki et al, 2020). Conspecific aggressiveness in hunter opisthobranchs is also known, with several species, including G. quadricolor but not C. peregrina and C. quatrefagesi, displaying cannibalistic behaviour (Macali et al, 2023). The repeatability of the alertness behaviour observed in G. quadricolor (Fig.…”

Section: δE Escape Frequencymentioning

confidence: 99%

Different behavioural profiles between invasive and native nudibranchs: means for invasion success?

Macali

Ferretti

Scozzafava

et al. 2023

Preprint

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Behaviour is predicted to be a primary determinant of the success of the invasion process during the early phases of colonization. Comparing sympatric invaders and native species may provide a good approach to unravel behavioural traits involved in an invasion process. In this study, we carried out an experimental simulation of the introduction and the establishment phase into a new environment and assessed the expression of activity, alertness and habituation in a non-indigenous Mediterranean population of the South African nudibranchGodiva quadricolorcomparing its profiles with those of the sympatric nativeCratena peregrinaandCaloria quatrefagesi. Individuals of these three species were subjected to three behavioural tests: spontaneous activity, carried out in the introduction phase (immediately after sampling) and after a week of acclimatization; alert test, in which a potential threat was simulated by means of a tactile stimulus; habituation test, where the same alert test stimulus was repeated five times at thirty- minute intervals. Native nudibranch had repeatable traits, although with species differences perhaps related to their different ecological niches. The comparison with the invasive species highlighted its low repeatability in activity levels, suggesting higher plasticity, a strong tendency to locomotor activity, and a marked sensitization in the habituation test. Such traits could play an important and active role in the ongoing invasion process.

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Section: δE Escape Frequencymentioning

confidence: 99%

Different behavioural profiles between invasive and native nudibranchs: means for invasion success?

Macali

Ferretti

Scozzafava

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

Different behavioral profiles between invasive and native nudibranchs: means for invasion success?

Macali,

Ferretti,

Scozzafava

et al. 2024

Current Zoology

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Behavior is predicted to be a primary determinant of the success of the invasion process during the early phases of colonization. Comparing invaders with sympatric native species may provide a good approach to unravel behavioral traits involved in an invasion process. In this study, we carried out an experimental simulation of the introduction and the acclimatization phase into a new environment and assessed the expression of activity, alertness, and habituation in an invasive Mediterranean population of the South African nudibranch Godiva quadricolor comparing its profiles with those of the sympatric Mediterranean native nudibranchs Cratena peregrina and Caloria quatrefagesi. Individuals of these 3 species were subjected to 3 behavioral tests: spontaneous activity, carried out in the introduction phase (immediately after sampling) and after a week of acclimatization; alert test, in which a potential threat was simulated by means of a tactile stimulus, and habituation test, in which the same alert test stimulus was repeated 5 times at 30-min intervals. The invasive G. quadricolor showed higher levels of exploration activity, thigmotaxis, alertness, and sensitization than the native species. These behavioral traits may represent pivotal drivers of the ongoing invasion process.

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Cannibalism, self-cannibalism and autotomy in the non-indigenous nudibranch Godiva quadricolor

Cited by 2 publications

References 41 publications

Different behavioural profiles between invasive and native nudibranchs: means for invasion success?

Different behavioural profiles between invasive and native nudibranchs: means for invasion success?

Different behavioral profiles between invasive and native nudibranchs: means for invasion success?

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