Physiological and behavioural adjustment of a wild rodent to laboratory conditions

Carrilho, Maílis; Monarca, Rita I.; Aparício, Guilherme; Mathias, Maria da Luz; Tapisso, Joaquim T.; von Merten, Sophie

doi:10.1016/j.physbeh.2023.114385

Cited by 3 publications

(1 citation statement)

References 89 publications

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“…Each trial consisted of three personality tests (Fig.2d): a Barrier Test (BT), a Light-Dark Test (LDT), and a Shelter Test (ST). These tests have long been used to measure personality traits and behavioral syndromes in different species(Young and Johnson 1991; Herde and Eccard 2013;Carrilho et al 2024). All tests were video recorded with a digital camera and data was collected manually from the videos.…”

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confidence: 99%

The shy, the digger and the adventurous: consistency and repeatability of personality traits in the social Lusitanian pine vole, Microtus lusitanicus

Andrade,

von Merten,

Varela

et al. 2024

Preprint

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In social species, the array of behavioral traits displayed by the different elements of the group can play a key role in the dynamics and fitness of the colony. This could help explain group organization, dispersion, and species’ sociality level. The Lusitanian pine vole, with its complex tunnel system and cooperative breeding strategy, is a perfect candidate to study personality in a social species. We formed laboratory-colonies with wild-caught individuals and their laboratory-reared offspring, and performed repeated behavioral tests of activity, exploration, and boldness. We identified one personality trait (Shyness) and two behavioral syndromes: the Active-Explorative-Bold Syndrome, characterizing individuals that are active, explorative, and bold aboveground; and the Explorative-Shy Syndrome, characterizing individuals not bold enough to venture out in the open often, but being quite explorative underground. Our results suggest that some individuals spend more time aboveground to forage for food and nest materials, while others may be more prone to stay underground, maintaining the burrows and taking care of offspring. By testing across different generations, we found that some traits were not consistent across life stages, indicating that behavioral changes occur during M. lusitanicus’ ontogeny. Lastly, we also found differences between wild-caught and lab-reared individuals, suggesting that captivity can lead to a loss of variation in personality traits in this species. Our results can contribute to a better understanding of the role of diverse personality types in populations of social species, of how personality structure can change across the lifespan and how environmental complexity can shape personality traits.

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confidence: 99%

The shy, the digger and the adventurous: consistency and repeatability of personality traits in the social Lusitanian pine vole, Microtus lusitanicus

Andrade,

von Merten,

Varela

et al. 2024

Preprint

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Effects of Directive 2010/63/EU on research on wild-sourced animals: a review of publication trends in studies on captive wild mice (Apodemus sp.)

Carrilho,

von Merten,

Mathias

et al. 2024

Lab Anim

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Most animals used in experimentation are small mammals. In the EU, Directive 2010/63/EU regulates the use of laboratory animals for experimental purposes. However, there are few guidelines for the use of wild-sourced animals, which cover permits, experimentation, transport, maintenance, and setting free after experiments. To evaluate the effect of the Directive on the study of wild-sourced animals, we conducted a systematised literature review focusing on three widespread rodents of the genus Apodemus: Apodemus agrarius, A. flavicollis and A. sylvaticus. We selected studies performed across the EU, published before (2000–August 2010), during (September 2010–2012) and after implementation of the Directive (2013–2022). From those, we collected data on three main topics: i) authorisation; ii) care and accommodation and iii) methods of killing. We found that after implementation of the Directive a higher proportion of published studies provided information about authorisation. In contrast, there was no significant difference over time in the information given about the care and accommodation of animals or methods of killing. As such, our analysis suggests that there is still room for improvement to achieve consistency across journals publishing research involving wild-sourced small mammals. Specifically, editors should require the provision of detailed information by authors regarding proper animal care (e.g. more detailed care and accommodation protocols). To harmonise the information requested by different editorial boards, we recommend the addition of specific guidelines in the Directive regarding wild animals, particularly on their proper accommodation, manipulation, enrichment and veterinary control.

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Facing stress and inflammation: From the cell to the planet

Cavaillon,

Chaudry

2024

World J Exp Med

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As identified in 1936 by Hans Selye, stress is shaping diseases through the induction of inflammation. But inflammation display some yin yang properties. On one hand inflammation is merging with the innate immune response aimed to fight infectious or sterile insults, on the other hand inflammation favors chronic physical or psychological disorders. Nature has equipped the cells, the organs, and the individuals with mediators and mechanisms that allow them to deal with stress, and even a good stress (eustress) has been associated with homeostasis. Likewise, societies and the planet are exposed to stressful settings, but wars and global warming suggest that the regulatory mechanisms are poorly efficient. In this review we list some inducers of the physiological stress, psychologic stress, societal stress, and planetary stress, and mention some of the great number of parameters which affect and modulate the response to stress and render it different from an individual to another, from the cellular level to the societal one. The cell, the organ, the individual, the society, and the planet share many stressors of which the consequences are extremely interconnected ending in the domino effect and the butterfly effect.

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Physiological and behavioural adjustment of a wild rodent to laboratory conditions

Cited by 3 publications

References 89 publications

The shy, the digger and the adventurous: consistency and repeatability of personality traits in the social Lusitanian pine vole, Microtus lusitanicus

The shy, the digger and the adventurous: consistency and repeatability of personality traits in the social Lusitanian pine vole, Microtus lusitanicus

Effects of Directive 2010/63/EU on research on wild-sourced animals: a review of publication trends in studies on captive wild mice (Apodemus sp.)

Facing stress and inflammation: From the cell to the planet

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