Antipredation strategy

Dowdey, T. G., and Brodie, E. D., Jr., 1989, Antipredator strategies of salamanders individual and geographical variation in responses of Eurycea bislineata to snakes, Anim. Behav. 38 707-711. 

In addition to colony formation, the exudates released by P. globosa and the subsequent increase in viscosity might then also be considered as a potential antipredator adaptive strategy that ultimately ensures the completion of its life cycle in highly turbulent environments. 

Harvey, P. H., Greenwood, P. J., 1978, Antipredator defense strategies some evolutionary problems, "Behavioural Ecology, an Evolutionary Approach," J. R. Krebs, and H B. Davies, eds., Sinauer Associates, Sunderland, MA.,... 

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