Environmental niche divergence among three dune shrub sister species with parapatric distributions.

ABSTRACT:

Background and aims

The geographical distributions of species are constrained by their ecological requirements. The aim of this work was to analyse the effects of environmental conditions, historical events and biogeographical constraints on the diversification of the three species of the western Mediterranean shrub genus Stauracanthus , which have a parapatric distribution in the Iberian Peninsula.

Methods

Ecological niche factor analysis and generalized linear models were used to measure the response of all Stauracanthus species to the environmental gradients and map their potential distributions in the Iberian Peninsula. The bioclimatic niche overlap between the three species was determined by using Schoener's index. The genetic differentiation of the Iberian and northern

SUBMITTER: Chozas S 

PROVIDER: S-EPMC5604598 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature