Androgen responsiveness to simulated territorial intrusions in Allobates femoralis males: Evidence supporting the challenge hypothesis in a territorial frog

Autor(en)
Camilo Rodríguez Lopez, Leonida Fusani, Gaelle Raboisson, Walter Hödl, Eva Ringler, Virginie Canoine
Abstrakt

Territoriality has been widely described across many animal taxa, where the acquisition and defence of a territory are critical for the fitness of an individual. Extensive evidence suggests that androgens are involved in the modulation of territorial behaviours in male vertebrates. Short-term increase of androgen following a territorial encounter appears to favour the outcome of a challenge. The “Challenge Hypothesis” proposed by Wingfield and colleagues outlines the existence of a positive feedback relationship between androgen and social challenges (e.g., territorial intrusions) in male vertebrates. Here we tested the challenge hypothesis in the highly territorial poison frog, Allobates femoralis, in its natural habitat by exposing males to simulated territorial intrusions in the form of acoustic playbacks. We quantified repeatedly androgen concentrations of individual males via a non-invasive water-borne sampling approach. Our results show that A. femoralis males exhibited a positive behavioural and androgenic response after being confronted to simulated territorial intrusions, providing support for the Challenge Hypothesis in a territorial frog.

Organisation(en)
Department für Verhaltens- und Kognitionsbiologie, Department für Evolutionsbiologie
Externe Organisation(en)
Universität Bern
Journal
General and Comparative Endocrinology
Band
326
Anzahl der Seiten
9
ISSN
0016-6480
DOI
https://doi.org/10.1016/j.ygcen.2022.114046
Publikationsdatum
09-2022
Peer-reviewed
Ja
ÖFOS 2012
106051 Verhaltensbiologie
Schlagwörter
ASJC Scopus Sachgebiete
Endocrinology, Animal Science and Zoology
Link zum Portal
https://ucris.univie.ac.at/portal/de/publications/androgen-responsiveness-to-simulated-territorial-intrusions-in-allobates-femoralis-males-evidence-supporting-the-challenge-hypothesis-in-a-territorial-frog(d2e8cad7-13e2-49ea-928d-d9ce56f6a4a9).html