Save

Size-assortative mating in explosive breeders: a case study of adaptive male mate choice in anurans

in Behaviour
Autor:innen:
Lindsey Swierk Department of Biology, Intercollege Graduate Program in Ecology, and Center for Brain, Behavior and Cognition, The Pennsylvania State University, University Park, PA 16802, USA

Search for other papers by Lindsey Swierk in
Current site
Google Scholar
PubMed
Close
und
Tracy Langkilde Department of Biology, Intercollege Graduate Program in Ecology, and Center for Brain, Behavior and Cognition, The Pennsylvania State University, University Park, PA 16802, USA

Search for other papers by Tracy Langkilde in
Current site
Google Scholar
PubMed
Close
Zitierung herunterladen Berechtigungen erhalten

Optionen für den Zugriff

Nutzen Sie bitte eine der untenstehenden Zugriffsmöglichkeiten, um den vollständigen Artikel zu lesen.

Institutszugang

Melden Sie sich mit Open Athens, Shibboleth oder Ihren institutionellen Anmeldedaten an.

Über Institut einloggen

Kauf

Sofortzugang erwerben (PDF-Download und unbegrenzter Online-Zugang):

36,93 €

Weitere Zugriffsmöglichkeiten

Auf DeepDyve mieten
Token einlösen

Abstract

Exploration of size-assortative mating (SAM) in animals has led to a near consensus that it arises through constraints in choice, such as preference for large females combined with a large male advantage during intrasexual competition. Although such ‘apparent’ SAM is well explored, whether SAM arises because of specific preferences for size-matched mates has been less thoroughly considered. We tested for ‘preference-based’ SAM in an explosively breeding frog (Rana sylvatica), quantifying how male and female sizes affected fertilization and if males preferred size-matched females. We found that size mismatch severely reduced fertilization. Furthermore, males preferred size-matched, not larger, females in mate choice trials. Because males that mated with much larger females fertilized fewer eggs overall than they would have with size-matched females, male preference for size-matched females may be adaptive. Our results expand understanding of the mechanisms underlying SAM, suggesting that multiple mechanisms may simultaneously cause size-assortative mating patterns to emerge.

Kennzahlen

Insgesamt Letzte 365 Tage In den letzten 30 Tagen
Aufrufe von Kurzbeschreibungen 966 198 11
Gesamttextansichten 62 8 0
PDF-Downloads 97 20 0