期刊名称：Check List - Journal of Species Lists and Distribution
印刷版ISSN：1809-127X
出版年度：2008
卷号：4
期号：04
页码：478-484
出版社：Luís Felipe Toledo
摘要：Amphibian distribution patterns in Chile have
been strongly influenced by the formation of
physiographic and climatic barriers, mainly the
Atacama desert in the north, the Andes mountains
in the east, and cold Patagonian steppes in the
southeast (Cei 1962; Veloso and Navarro 1988).
Other fundamental factor that has influenced the
distribution of these organisms in Chile, as well as
that of other groups of plants and animals is a
climatic gradient characterized by a sustained
increment of precipitation level from north to
south (Di Castri 1968; Veloso 2006). Along this
gradient, the highest degree of species richness
among the amphibians is concentrated between
38° and 46° S (Veloso and Navarro 1988; Ortiz
and Díaz-Páez 2006), a zone dominated by humid
temperate forests (Gajardo 1995). Northward,
temperate forests give way to the sclerophyllic
forests and shrublands of central Chile, which
gradually gives way to the Atacama desert at
about 28° S. The vegetational changes mentioned
may be directly related to the gradual decrease in
the richness of the amphibian fauna progressing
northward, both in the coast and in the interior of
the country (Cei 1962; Veloso 2006).
