Salamander territoriality competition

Mathis, A., 1990, Territorial salamanders assess sexual and competitive informadon using chemical signals, Anim. Behav. 40 953-962. 

Fraser (1976a, 1976b) examined two dissimilarly sized, sympatric species of salamanders in the mountains of Virginia Plethodon cinereus and jP. hoffmani. He found no evidence of direct competition for food, and as an alternative, he proposed that interspecific competition occurs for space. This was the first substantial indication that spacing behavior via territoriality might occur within or between species of salamanders. 

Gergits, W. F., 1982, Interference Competition and Territoriality Between the Terrestrial Salamanders Plethodon cinereus and Plethodon Shenandoah, M, S. Thesis, State University of New York at Albany, Albany. 

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