Genetic isolation between conspecific populations and their relationship to climate heterogeneity

Climate influences the genetic structure and niche differentiation among populations of the olive field mouse Abrothrix olivacea (Cricetidae: Abrotrichini)

“…This does not imply that all South American species have complex evolutionary histories, but potentially all those with deep phylogeographic breaks, large geographic distributions and inhabiting distinct landscape configurations as Abrothrix olivacea (e.g., A . hirta , Loxodontomys micropus , Oligoryzomys longicaudatus ; see 123 for a recent exploration in this line), would likely do. Similarly, codistributed species with large phenotypic variation (e.g., A. hirta ; see 124 ) are worth of analysis.…”

“…On the one hand, it is important to consider that given the complex geological evolution and the large environmental heterogeneity exhibited across southern South American, patterns of genetic structure and/or ecological niche differentiation discovered in species from this region would likely be complex, and their complete unraveling will require samplings that exhaustively characterize the intraspecific genetic and ecological variation. This does not imply that all South American species have complex evolutionary histories, but potentially all those with deep phylogeographic breaks, large geographic distributions and inhabiting distinct landscape configurations as Abrothrix olivacea (e.g., A. hirta, Loxodontomys micropus, Oligoryzomys longicaudatus; see 123 for a recent exploration in this line), would likely do. Similarly, codistributed species with large phenotypic variation (e.g., A. hirta; see 124 ) are worth of analysis.…”