Welcome to Spiderlab Aarhus University - Trine Bilde's lab
Evolution of Cooperative Societies – Mating System Evolution – Animal Behaviour
A main aim of our research group is to understand the evolution of group-living and cooperation using social spiders as model system. The social spiders are unique among group living animals, as the transition to permanent sociality is associated with strong inbreeding and highly female-biased sex ratios. Our research aims to understand 1) the ecology and evolution of sociality, 2) reproductive division of labour and conflict resolution, and 3) population consequences of inbreeding. Our research is mainly performed on the genus Stegodyphus that contains both social and subsocial (pre-social) spiders, which makes it ideal for comparative studies. We do field work in South Africa, Nambia, India and Israel.
We study the evolution of polyandrous mating systems and post-copulatory sexual selection for indirect genetic benefits in subsocial Stegodyphus spiders.
We also study sexual selection and male-female co-evolution in the nursery web spider Pisaura mirabilis, where males offer nuptial gifts to females during courtship and mating.
Kristian W. Sanggaard*, Jesper S. Bechsgaard*, Xiaodong Fang*, Jinjie Duan, Thomas F. Dyrlund, Vikas Gupta, Xuanting Jiang, Ling Cheng, Dingding Fan, Yue Feng, Lijuan Han, Zhiyong Huang, Li Liao, Virginia Settepani, Ida B. Thøgersen, Bram Vanthournout, Tobias Wang, Yabing Zhu5, Peter Funch, Jan J. Enghild, Leif Schauser, Stig U. Andersen, Palle Villesen, Mikkel H. Schierup, Trine Bilde, Jun Wang. 2014. Spider genomes provide insight into composition and evolution of venom and silk. Nature Communications doi:10.1038/ncomms4765
Grinsted L, Pruitt JN, Settepani V, Bilde T. 2013. Individual personalities shape task differentiation in a social spider. Proc R Soc B 280: 20131407
Majer M., Svenning JC., Bilde T. 2013. Habitat productivity constrains the distribution of social spiders across continents -- case study of the genus Stegodyphus. Frontiers in Zoology.10:9.
Grinsted L., Bilde T. 2013. Effects of within-colony competition on body size asymmetries and reproductive skew in a social spider. Journal of Evolutionary Biology. DOI: 10.1111/jeb.12072
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