Anelosimus oritoyacu, a cloud forest social spider with only slightly female-biased primary sex ratios

Journal of Arachnology

Volumn 39, Issue 1, 2011, Pages 178-182

  Avilés, Leticia ^a   Purcell, Jessica ^a  

^a UNIVERSITY OF BRITISH COLUMBIA   (Canada)

Author keywords

cooperation; Ecuador; life cycle; quasisocial; subsocial; Theridiidae

Indexed keywords

ANELOSIMUS; ARANEAE; HEXAPODA; THERIDIIDAE;

EID: 79959572806     PISSN: 01618202     EISSN: None     Source Type: Journal    
DOI: 10.1636/Hi09-87.1     Document Type: Article

References (27)

1. Agnarsson, I. 2005. A revision and phylogenetic analysis of the American ethicus and rupununi groups of Anelosimus (Araneae, Theridiidae). Zoologica Scripta 34:389-413. (Pubitemid 40886730)
2. Agnarsson, I. 2006. A revision of the New World eximius lineage of Anelosimus (Araneae, Theridiidae) and a phylogenetic analysis using worldwide exemplars. Zoological Journal of the Linnean Society 141:453-593. (Pubitemid 43779847)
3. Avilés, L. 1986. Sex ratio bias and possible group selection in the social spider Anelosimus eximius. American Naturalist 128:1-12.
4. Avilés, L. 1993. Interdemic selection and the sex ratio: a social spider perspective. American Naturalist 142:320-345. (Pubitemid 24407836)
5. Avilés, L. 1997. Causes and consequences of cooperation and permanent sociality in spiders. Pp. 476-498. In The Evolution of Social Behavior in Insects and Arachnids. (J. C. Choe & B. J. Crespi, eds.). Cambridge University Press, Cambridge, UK.
6. Avilés, L. & W. P. Maddison. 1991. When is the sex ratio biased in social spiders? Chromosome studies of embryos and male meiosis in Anelosimus species (Araneae, Theridiidae). Journal of Arachnology 19:126-135.
7. Avilés, L. & P. Tufiño. 1998. Colony size and individual fitness in the social spider Anelosimus eximius. American Naturalist 152:403-418. (Pubitemid 28398077)
8. Avilés, L. & P. Salazar. 1999. Notes of the social structure, life cycle, and behavior of Anelosimus rupununi. Journal of Arachnology 27:497-502. (Pubitemid 129317336)
9. Avilés, L., W. P. Maddison, P. Salazar, G. Estévez, P. Tufiño & G. Cañas. 2001. Social spiders of the Ecuadorian Amazonia, with notes on previously undescribed social species. Revista Chilena de Historia Natural 74:619-638.
10. Avilés, L. W. Maddison & I. Agnarsson. 2006. A new independently derived social spider with explosive colony proliferation and a female size dimorphism. Biotropica 36:743-753. (Pubitemid 44624332)
11. Avilés, L., I. Agnarsson, P. Salazar, J. Purcell, G. Iturralde, E. Yip, K. S. Powers & T. Bukowski. 2007. Altitudinal patterns of spider sociality and the biology of a new mid-elevation social Anelosimus species in Ecuador. American Naturalist 170:783-792. (Pubitemid 47580411)
12. Fowler, H. G. & H. W. Levi. 1979. A new quasisocial Anelosimus spider from Paraguay. Psyche 86:11-18.
13. Guevara, J. & L. Avilés. 2007. Multiple sampling techniques confirm differences in insect size between low and high elevations that may influence levels of sociality in spiders. Ecology 88:2015-2033.
14. Gunnarsson, B. & A. Andersson. 1992. Skewed primary sex-ratio in the solitary spider Pityohyphantes phrygianus. Evolution 46:841-845.
15. Hardy, I. C. W. 2002. Sex Ratios: Concepts and Research Methods. Cambridge University Press, Cambridge, UK.
16. Jones, T. C., S. E. Riechert, S. E. Dalrymple & P. G. Parker. 2007. Fostering model explains variation in levels of sociality in a spider system. Animal Behaviour 73:195-204. (Pubitemid 46013848)
17. Lubin, Y. & T. Bilde. 2007. The evolution of sociality in spiders. Advances in the Study of Behavior 37:83-145.
18. Marques, E. S. A., J. Vasconcellos-Neto & M. Britto-DeMello. 1998. Life history and social behavior of Anelosimus jabaquara and Anelosimus dubiosus (Araneae, Theridiidae). Journal of Arachnology 26:227-237.
19. Nagelkerke, C. J. & M. W. Sabelis. 1996. Hierarchical levels of spatial structure and their consequences for the evolution of sex allocation in mites and other arthropods. American Naturalist 148:16-39.
20. Neill, D. A. 1999. Climates. Pp. 8-13. In Catalogue of the Vascular Plants of Ecuador. Monographs in Systematic Botany from the Missouri Botanical Garden. (P. M. Jørgensen & S. León-Yánez, eds.). Volume 75. Missouri Botanical Garden, St. Louis, Missouri.
21. Powers, K. S. & L. Avilés. 2007. The role of prey size and abundance in the geographical distribution of spider sociality. Journal of Animal Ecology 76:995-1003. (Pubitemid 47262776)
22. Purcell, J. & L. Avilés. 2007. Smaller colonies and more solitary living mark higher elevation populations of a social spider. Journal of Animal Ecology 76:590-597. (Pubitemid 46606833)
23. Rypstra, A. L. 1993. Prey size, social competition, and the development of reproductive division of labor in social spider groups. American Naturalist 142:868-880.
24. Rypstra, A. L. & R. S. Tirey. 1989. Observations on the social spider, Anelosimus domingo (Araneae, Theridiidae), in Southwestern Perú. Journal of Arachnology 17:368-371.
25. Whitlock, M. C. 2005. Combining probabilities from independent tests: the weighted Z method is superior to Fisher's approach. Journal of Evolutionary Biology 18:1368-1373. (Pubitemid 41725687)
26. Williams, G. C. 1966. Adaptation and Natural Selection. Princeton University Press, Princeton, New Jersey.
27. Yip, E., K. C. Powers & L. Avilés. 2008. Cooperative capture of large prey solves scaling challenge faced by large spider societies. Proceedings of the National Academy of Sciences USA 105:11818-11822.