Trap versus net: Behavioural sampling bias caused by capture method in three-spined sticklebacks

Álvarez-Quintero, Náyade; Chiara, Violette; Kim, Sin‐Yeon

doi:10.1016/j.beproc.2021.104504

Cited by 5 publications

(2 citation statements)

References 38 publications

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“…Behavioural differences in morph responses to climatic conditions (Fairhurst 1969) could lead to variation in trappability along the urbanisation gradient, and thus explain the observed shift in morph data, irrespective of the actual morph frequencies (Álvarez-Quintero et al 2021). However, given the lack of seasonal variation in morph frequency and its response to urbanisation, observed morph shifts more likely reflect true morph shifts.…”

Section: Discussionmentioning

confidence: 99%

Shifts in colour morph frequencies along an urbanisation gradient in the ground beetlePterostichus madidus

Dahirel

Audusseau

Croci

2023

Preprint

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Cities impose strong ecological constraints on many species. It is often difficult to know whether phenotypic responses to urbanisation are due to (adaptive) evolutionary responses, as opposed to e.g. plastic responses. A solution is to focus on traits for which variation is only or mostly genetic in origin, since changes are then likely to reflect evolutionary processes. For this purpose, we studied the leg-colour polymorphism of a common carabid beetle, Pterostichus madidus, along an urbanisation gradient. We observed that black-legged individuals were more frequent than red-legged individuals in urban areas. Whether these changes result from natural selection or non-selective evolutionary forces is uncertain. However, if this phenotypic change is adaptive in nature, higher urban temperatures are likely to be the driver. Specifically, our results are consistent with previous data showing that black-legged individuals have a behavioural advantage in warmer (micro)climates, and contradict the thermal melanism hypothesis that predicts they would experience stronger negative effects of higher temperatures in cities.

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Section: Discussionmentioning

confidence: 99%

Shifts in colour morph frequencies along an urbanisation gradient in the ground beetlePterostichus madidus

Dahirel

Audusseau

Croci

2023

Preprint

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“…Sampling was performed with seine nets during three ice‐free seasons and by minnow traps under ice in winter (Table S1). Trapping can favour bolder and smaller individuals compared to netting (Álvarez‐Quintero et al., 2021), but this bias should be equal across ponds. Following collection, fish were euthanized using a lethal dose of clove oil (100 ppm) and preserved in 10% neutral buffered formalin for up to 24 months until processing.…”

Section: Methodsmentioning

confidence: 99%

Adaptive divergence of seasonal heart plasticity between Canadian and Spanish pumpkinseed sunfish populations

Procopio,

Studden,

Axelrod

et al. 2024

Journal of Zoology

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Laboratory experiments suggest that reversible changes in the heart ventricle phenotype of fish accompany acclimation to temperature change to maintain cardiac function, but related work in fish living in natural conditions is scant. We investigated seasonal variation in heart ventricular mass and collagen content in pumpkinseed sunfish (Lepomis gibbosus) living in outdoor ponds where they experienced high seasonality conditions. Additionally, we compared populations adapted to high and low seasonality to evaluate potential divergence in seasonal heart plasticity. Heart ventricular mass decreased in the summer compared to colder seasons only in populations adapted to high seasonality. The absence of seasonal variation in ventricular mass in sunfish adapted to low seasonality was not due to changes in foraging activity, suggesting a loss of ventricle size plasticity due to either costs of plasticity or relaxed selection. Seasonal variation in ventricle collagen content also occurred, with the highest collagen content in summer regardless of population adaptation to high or low seasonality. Only the proportion of thick collagen fibres changed across seasons. We conclude that natural seasonal cues induce plastic responses in some functional heart traits and propose that these responses can rapidly diverge among populations under different seasonal regimes.

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Sampling biases and reproducibility: experimental design decisions affect behavioural responses in hermit crabs

Hills

Webster

2022

Animal Behaviour

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Trap versus net: Behavioural sampling bias caused by capture method in three-spined sticklebacks

Cited by 5 publications

References 38 publications

Shifts in colour morph frequencies along an urbanisation gradient in the ground beetlePterostichus madidus

Shifts in colour morph frequencies along an urbanisation gradient in the ground beetlePterostichus madidus

Adaptive divergence of seasonal heart plasticity between Canadian and Spanish pumpkinseed sunfish populations

Sampling biases and reproducibility: experimental design decisions affect behavioural responses in hermit crabs

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