Quantitative Habitat Associations of Small Mammals in a Temperate Rainforest in Southern Chile: Empirical Patterns and the Importance of Ecological Scale

摘要: Multivariate analyses of distributions small mammals identified important habitat associations in a precordilleran temperate rainforest southern Chile. Significant differences vegetation were found between summer (January–March) and winter (July–August) periods, indicating that multiple-season studies may be necessary to fully assess preferences mammals. Three species sigmodontines ( Akodon olivaceus, Abrothrix longipilis, sanborni ), putative A. longipilis × hybrid, showed moderate with considerable interspecific overlap. Habitat Oligoryzomys longicaudatus , sporadic resident, significantly different from those the akodonts, perhaps reflecting transient status community; other generally had insufficient captures for quantitative comparisons. These patterns association differ previous suggest consequences methodological, spatiotemporal, demographic factors interpretation detection multivariate ecological relationships.