Captive house sparrows (Passer domesticus) show little evidence of seasonality of neophobia responses.
captivity
glucocorticoids
neophobia
novelty
personality
Journal
Journal of experimental zoology. Part A, Ecological and integrative physiology
ISSN: 2471-5646
Titre abrégé: J Exp Zool A Ecol Integr Physiol
Pays: United States
ID NLM: 101710204
Informations de publication
Date de publication:
08 2020
08 2020
Historique:
received:
08
10
2019
revised:
03
04
2020
accepted:
10
04
2020
pubmed:
1
5
2020
medline:
27
3
2021
entrez:
1
5
2020
Statut:
ppublish
Résumé
Neophobia is a behavior characterized by a reluctance to approach novel objects. We measured neophobia in captive wild house sparrows (Passer domesticus) by comparing the time it took for hungry birds to approach their normal food dish compared to one that had been modified with a novel object. We tested the behavior of animals captured at different times of year to test for seasonal variation in neophobia. One group of birds tested in July approached their food dishes much more quickly than all other birds (a matter of seconds rather than minutes whether or not there was a novel object), a response that was not repeated in a subsequent July. When this possible outlier group was removed from the analysis, approach times to novel objects were not affected by season. However, animals captured and tested in October had a stronger motivation to feed (i.e., they approached unmodified food dishes faster) than birds captured at other times of the year. If we define "neophobia" as an increase in latency to approach a novel versus an unmodified food dish, then there is little evidence for underlying seasonal variation in risk assessment, although a general motivation to feed does show a seasonal pattern.
Types de publication
Journal Article
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
478-482Informations de copyright
© 2020 Wiley Periodicals, Inc.
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