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Record W7039237625

Le rôle de l'expérience sur l'évitement des milieux risqués par le caribou boréal

2024· other· fr· W7039237625 on OpenAlexfundaboutno aff

Bibliographic record

VenueSémaphore (Université du Québec à Rimouski) · 2024
Typeother
Languagefr
Field
Topic
Canadian institutionsnot available
FundersNatural Sciences and Engineering Research Council of CanadaMinistère des TransportsEnvironment and Climate Change CanadaUniversité du Québec à RimouskiWorld Wildlife Fund
KeywordsEnvironmental factorReproductive behaviorPopulationUrban environment
DOInot available

Abstract

fetched live from OpenAlex

RÉSUMÉ : Les ajustements comportementaux permettent aux animaux de moduler leur comportement en réponse à des stimuli variés. Parmi les ajustements comportementaux, ceux dits développementaux (p. ex. l'apprentissage) permettent aux individus de modifier leur comportement sur la base de leurs expériences passées. Ce mécanisme est souvent mis à profit dans le développement de comportements anti-prédateurs, car l'expérience passée avec la prédation peut améliorer la capacité des individus à répondre au risque de prédation au cours de leur vie. L'étude de tels mécanismes est essentielle pour appréhender la capacité des proies à faire face aux changements dans l'organisation spatiale du risque de prédation actuellement engendrés par plusieurs formes d'activités humaines. La population boréale du caribou des bois (Rangifer tarandus caribou) est influencée négativement par l'aménagement forestier qui modifie le paysage et exacerbe le risque de prédation par le loup gris (Canis lupus) et l'ours noir (Ursus americanus). La capacité des caribous à ajuster leur comportement d'évitement spatial des prédateurs dans ce contexte a toutefois été peu explorée à ce jour. Mon projet de recherche visait à évaluer l'effet de l'expérience sur l'intensité de l'évitement des milieux risqués par les caribous dans une aire d'étude fortement perturbée par l'exploitation forestière. Pour ce faire, j'ai utilisé des données télémétriques récoltées sur 28 femelles caribous, 31 loups gris et 12 ours noirs dans la région de Charlevoix, au Québec (est du Canada). Mon hypothèse principale soutenait que les caribous ajustent leur comportement d'évitement des milieux risqués via l'expérience acquise au cours de leur vie. Les résultats obtenus supportent partiellement cette hypothèse, témoignant d'une augmentation de l'évitement des milieux favorables au loup et à l'ours durant la plupart des périodes étudiées. Les caribous semblaient donc en mesure d'ajuster leur perception du risque à mesure qu'ils gagnaient en expérience. Novatrice, mon étude est l'une des rares à mettre en lumière un tel mécanisme chez des animaux suivis à long terme en nature. Ce résultat est prometteur pour la conservation du caribou puisqu'il suggère l'existence d'une capacité d'ajustement du caribou face aux risques rencontrés en milieux perturbés, ce qui pourrait, au fil des générations, faciliter une adaptation locale au sein des populations. - Mot(s) clé(s) en français : ajustement comportemental, coupes forestières, évitement de la prédation, perturbations du paysage, Rangifer tarandus caribou. -- \nABSTRACT : Behavioural adjustments allow animals to modulate their behaviour to environmental stimuli. Among behavioural adjustments, developmental ones (e.g., learning) allow animals to modify their behaviour based on past experiences. This mechanism is often leveraged in the development of antipredator behaviours, as past experience with predation can enhance an individual's ability to respond to predation risk during their life. The study of such mechanisms is essential to understanding the ability of prey to cope with changes in the spatial organization of predation risk currently induced by many forms of human activities. The boreal population of woodland caribou (Rangifer tarandus caribou) is negatively influenced by forest management, which modifies the landscape and increases the risk of predation by grey wolves (Canis lupus) and black bears (Ursus americanus). However, the ability of caribou to adjust their spatial avoidance of predators in this context has received little attention to date. My research project aimed to evaluate the effect of experience on the intensity of avoidance of risky areas by caribou in a heavily disturbed study area affected by timber harvesting. To achieve this, I used telemetry data collected on 28 female caribou, 31 grey wolves, and 12 black bears in the Charlevoix region of Québec (eastern Canada). My main hypothesis was that caribou adjust their avoidance of risky areas based on experience acquired over the course of their life. The results partially support this hypothesis, showing an increase in avoidance of areas suitable to wolves and bears during most of the studied periods. Caribou therefore appeared able to adjust their risk perception as they gained experience. My innovative study is among the few that have shed light on such mechanism in wild animals monitored across a long time period. This result shows promise for caribou conservation, as it suggests that caribou can adjust their behaviour to the risks encountered in disturbed landscapes, which could, over passing generations, facilitate local adaptations at the population level. - Mot(s) clé(s) en anglais : behavioural adjustments, clearcuts, landscape disturbances, predator avoidance, Rangifer tarandus caribou.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.984
Threshold uncertainty score0.032

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.001
Scholarly communication0.0010.000
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.007
GPT teacher head0.191
Teacher spread0.184 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations0
Published2024
Admission routes2
Has abstractyes

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