Peled E. auteur aut IRD Shanas U. auteur aut IRD Granjon Laurent auteur aut IRD Ben-Shlomo R. auteur aut IRD text journalArticle eng text/pdf born digital access Landscape structure can affect connectivity among populations. In a patchy landscape, specialist species that are limited to particular elements are expected to show low gene diversity, low connectivity and high differentiation among patches. Conversely, for generalist species, genetic variability and gene flow among sites are expected to be high, and differentiation is expected to be low. Here we tested this hypothesis for two rodent species: Gerbillus gerbillus, the psammophile specialist species abundant in sandy habitats, and Gerbillus nanus, the parapatric habitat generalist species, found in the more stable sands in Israel and West Africa. We found that among the psammophile specialist G. gerbillus populations, differentiation was low and connectivity was high. In contrast, the parapatric generalist species G. nanus demonstrates markedly high genetic differentiation between localities within short distances in Israel. Furthermore, our results support a division between the African and the Israeli G. nanus populations, suggesting two distinct species. specialized Gene diversity Gerbillus Habitat generalist species Habitat specialist AFLP Cytochrome-b ISRAEL MALI MAURITANIE 082 080 020 125 88-97 2016 0140-1963 https://www.documentation.ird.fr/hor/fdi:010066013 10.1016/j.jaridenv.2015.10.006 0140-1963 [F B010066013] https://www.documentation.ird.fr/hor/fdi:010066013 https://www.documentation.ird.fr/intranet/publi/2016/01/010066013.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2016-02-02 2017-08-23 fdi:010066013 fre