Phylogenetic structure and ecological niche modeling of the red dwarf honey bee across its native range.

We evaluated the genetic structure and ecological niche segregation of Apis florea Fabricius 1787 (Apidae: Apini) across its native range using genetic and ecological niche data. The bee samples were from 62 colonies representing 40 localities across Iran, Iraq, Pakistan, Oman, and Egypt. Ecological niche divergence was estimated based on a principal component analysis of climatic/ecological variables. We confirmed the presence of two distinct lineages (eastern and western) for the species using mtDNA. There was no significant climatic heterogeneity between the lineages and their ecological niches are likely to be somewhat conserved. They were probably separated from each other during the Pleistocene and evolved in isolation. The two lineages of A. florea can be considered separate conservation units and used to develop strategies for effectively conserving this keystone pollinator species in Asia. [ABSTRACT FROM AUTHOR]