Ecological species replacement of Liolaemus lizards along a habitat gradient.

摘要: Ecological species replacement of Liolaemus platei by lemniscatus appears to occur along a north-south oriented herb density gradient. Both congeners are the only ground-dwelling lizards in area; this suggests that L. is an ecological counterpart herbaceous habitats. Relatively longer legs appear be associated with utilization herb-free habitats platei; shorter possessed higher density. Morphological evidence indicates presence intermediate populations zone Alternatives single-species cline versus interspecific hybridization between two taxa discussed.