Vaissi, S., M. Sharifi & V. Akmali

Landscape features drive dispersal patterns in the vulnerable Yellow-spotted Mountain Newt, Neurergus derjugini (Caudata: Salamandridae). pp. 27-32.

Abstract. The study investigates the impact of landscape features on the dispersal patterns of the vulnerable Yellow-spotted Mountain Newt, Neurergus derjugini. By integrating population genetics and geospatial data, the research aims to identify potential movement corridors among populations. The mitochondrial DNA marker NADH Dehydrogenase Subunit 2, along with genetic subdivision (θST) and least-cost path (LCP) analyses, is utilized based on data collected from six fragmented highland streams and spring ponds, representing the southern range of the species’ distribution area in the Zagros mountains of Iran. The study explores five dispersal routes: straight line, stepping stone, least cost slope, stream likelihood, and a combination of least cost slope and stream likelihood. Genetic and LCP analyses reveal evidence of potential dispersal facilitated by aquatic corridors in the least-cost slope. The findings have crucial implications for informing conservation priorities for N. derjugini, offering valuable estimates of the species’ potential dispersal activity in response to climate change and ongoing habitat destruction linked to human activities.

Key words. Landscape features, habitat fragmentation, dispersal routes, population genetics, GIS, conservation priorities.