Transitions in social complexity along elevational gradients reveal a combined impact of season length and development time on social evolution.

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Ressource 1Télécharger: BIB_1120FAAC8FA6.P001.pdf (513.36 [Ko])
Etat: Public
Version: Final published version
ID Serval
serval:BIB_1120FAAC8FA6
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Transitions in social complexity along elevational gradients reveal a combined impact of season length and development time on social evolution.
Périodique
Proceedings of the Royal Society. B Biological Sciences
Auteur(s)
Kocher S.D., Pellissier L., Veller C., Purcell J., Nowak M.A., Chapuisat M., Pierce N.E.
ISSN
1471-2954 (Electronic)
ISSN-L
0962-8452
Statut éditorial
Publié
Date de publication
2014
Peer-reviewed
Oui
Volume
281
Numéro
1787
Pages
20140627
Langue
anglais
Résumé
Eusociality is taxonomically rare, yet associated with great ecological success. Surprisingly, studies of environmental conditions favouring eusociality are often contradictory. Harsh conditions associated with increasing altitude and latitude seem to favour increased sociality in bumblebees and ants, but the reverse pattern is found in halictid bees and polistine wasps. Here, we compare the life histories and distributions of populations of 176 species of Hymenoptera from the Swiss Alps. We show that differences in altitudinal distributions and development times among social forms can explain these contrasting patterns: highly social taxa develop more quickly than intermediate social taxa, and are thus able to complete the reproductive cycle in shorter seasons at higher elevations. This dual impact of altitude and development time on sociality illustrates that ecological constraints can elicit dynamic shifts in behaviour, and helps explain the complex distribution of sociality across ecological gradients.
Mots-clé
social behaviour, altitude, development time, species distributions, hymenoptera
Pubmed
Web of science
Open Access
Oui
Création de la notice
23/04/2014 14:03
Dernière modification de la notice
20/08/2019 13:38
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