Social network analysis and valid Markov chain Monte Carlo tests of null models

Reference:

Krause, S., Mattner, L., James, R., Guttridge, T., Corcoran, M. J., Gruber, S. H. and Krause, J., 2009. Social network analysis and valid Markov chain Monte Carlo tests of null models. Behavioral Ecology and Sociobiology, 63 (7), pp. 1089-1096.

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Official URL:

http://dx.doi.org/10.1007/s00265-009-0746-1

Abstract

Analyses of animal social networks derived from group-based associations often rely on randomisation methods developed in ecology (Manly, Ecology 76:1109-1115, 1995) and made available to the animal behaviour community through implementation of a pair-wise swapping algorithm by Bejder et al. (Anim Behav 56:719-725, 1998). We report a correctable flaw in this method and point the reader to a wider literature on the subject of null models in the ecology literature. We illustrate the importance of correcting the method using a toy network and use it to make a preliminary analysis of a network of associations among eagle rays.

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