摘要: Recent research on space use and social behavior of small mammals has revealed pronounced differences in the degree territoriality between species sexes within species. Hypotheses to explain these have been based optimality approaches. Leading hypotheses are that spatial distribution, abundance renewal rates food resources determine whether females defend territories, temporal pattern availability determines males territorial. Other invoke other than food, or maintain deters infanticide. This review briefly summarizes evaluates recently collected evidence from comparative experimental studies.