Predator abundance drives the association between exploratory personality and foraging habitat risk in a wild marine meso‐predator

Dhellemmes, Félicie; Smukall, Matthew J.; Guttridge, Tristan L.; Krause, Jens; Hussey, Nigel E.

doi:10.1111/1365-2435.13874

Cited by 15 publications

(10 citation statements)

References 103 publications

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“…The relative trophic simplicity of a high-latitude shallow lake with clearly distinct trophic niches may facilitate the detection of the currently observed correlation between behavior and δ 13 C values. This is likely to vary system to system, for example, Dhellemmes et al (2021) observed correlation between behavior and distinct δ 13 C niches of different foraging risk (seagrass and mangroves) but as the trophic environment increases in complexity small-scale differences in foraging may be less likely to result in notable differences in stable isotope values.…”

Section: Discussionmentioning

confidence: 99%

“…Following Glon et al (2016), there have only been a few studies combining measures of personality and stable isotope estimates of trophic niche. Dhellemmes et al (2021) found that exploratory behavior in juvenile lemon sharks (measured in a controlled test) correlates with δ 13 C values representing sheltered or unsheltered foraging habitats but only when predators were abundant. A recent study on red knots found that observations of both foraging behavior in the field and stable isotope values were related to personality (exploratory behavior) suggesting an effect of personality on tropic niche (Ersoy et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Laboratory measures of boldness correlate with ecological niche in threespine stickleback

Theódórsson

Ólafsdóttir

2022

Ecology and Evolution

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Laboratory measures of boldness correlate with ecological niche in threespine stickleback

Theódórsson

Ólafsdóttir

2022

Ecology and Evolution

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“…In a marine coastal system, Dhellemmes et al. (2021) found that the relationship between individual juvenile lemonshark ( Negaprion brevirostris ) exploration and isotopic signatures of foraging in high‐risk, exposed eel grass habitats fluctuated in direction and magnitude according to predation pressure. Gharnit et al.…”

Section: Introductionmentioning

confidence: 99%

Atlantic cod individual spatial behaviour and stable isotope associations in a no‐take marine reserve

Monk,

Power,

Freitas

et al. 2023

Journal of Animal Ecology

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Foraging is a behavioural process and, therefore, individual behaviour and diet are theorized to covary. However, few comparisons of individual behaviour type and diet exist in the wild. We tested whether behaviour type and diet covary in a protected population of Atlantic cod, Gadus morhua. Working in a no‐take marine reserve, we could collect data on natural behavioural variation and diet choice with minimal anthropogenic disturbance. We inferred behaviour using acoustic telemetry and diet from stable isotope compositions (expressed as δ13C and δ15N values). We further investigated whether behaviour and diet could have survival costs. We found cod with shorter diel vertical migration distances fed at higher trophic levels. Cod δ13C and δ15N values scaled positively with body size. Neither behaviour nor diet predicted survival, indicating phenotypic diversity is maintained without survival costs for cod in a protected ecosystem. The links between diet and diel vertical migration highlight that future work is needed to understand whether the shifts in this behaviour during environmental change (e.g. fishing or climate), could lead to trophic cascades.

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“…For instance, Euricea nana salamanders reduce their activity time in the presence of predators ( Davis & Gabor, 2015 ). Likewise, Parus major tits exposed to predators have a lower tendency to explore than non-exposed controls ( Abbey-Lee, Mathot & Dingemanse, 2016 ), and juvenile Negaprion brevirostris sharks that exhibit more exploratory behaviour forage in riskier habitats, but only under low predation pressure ( Dhellemmes et al, 2021 ). On the other hand, the relationships between predation risk and behavioural traits may transcend plasticity, as behaviour can be persistent across environments ( Dosmann & Mateo, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

The relationships between toad behaviour, antipredator defences, and spatial and sexual variation in predation pressure

Zamora‐Camacho

2022

PeerJ

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Background Animal behaviour is under strong selection. Selection on behaviour, however, might not act in isolation from other fitness-related traits. Since predators represent outstanding selective forces, animal behaviour could covary with antipredator defences, such that individuals better suited against predators could afford facing the costs of riskier behaviours. Moreover, not all individuals undergo equivalent degrees of predation pressure, which can vary across sexes or habitats. Individuals under lower predation pressure might also exhibit riskier behaviours. Methods In this work, I tested these hypotheses on natterjack toads (Epidalea calamita). Specifically, I gauged activity time, exploratory behaviour and boldness in standard laboratory conditions, and assessed whether they correlated with body size and antipredator strategies, namely sprint speed, parotoid gland area and parotoid gland colour contrast. Additionally, I compared these traits between sexes and individuals from an agrosystem and pine grove, since there is evidence that males and agrosystem individuals are subjected to greater predation pressure. Results Sprint speed as well as parotoid gland contrast and size appeared unrelated to the behavioural traits studied. In turn, body mass was negatively related to activity time, boldness and exploration. This trend is consistent with the fact that larger toads could be more detectable to their predators, which are mostly gape unconstrained and could easily consume them. As predicted, females exhibited riskier behaviours. Nonetheless, agrosystem toads did not differ from pine grove toads in the behavioural traits measured, despite being under stronger predation pressure.

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Predator abundance drives the association between exploratory personality and foraging habitat risk in a wild marine meso‐predator

Abstract: This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as

Cited by 15 publications

References 103 publications

Laboratory measures of boldness correlate with ecological niche in threespine stickleback

Laboratory measures of boldness correlate with ecological niche in threespine stickleback

Atlantic cod individual spatial behaviour and stable isotope associations in a no‐take marine reserve

The relationships between toad behaviour, antipredator defences, and spatial and sexual variation in predation pressure

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