Environmental niche models utilize associations between environmental variables and known species distributions to define abiotic conditions within which populations can be maintained. Projection of modelled niches into new regions and under scenarios of future climate change enables the geographical distribution of suitable conditions to be predicted. This approach has been widely applied, inc...

Species range limits involve many aspects of evolution and ecology, from species distribution and abundance to the evolution of niches. Theory suggests myriad processes by which range limits arise, including competitive exclusion, Allee effects, and gene swamping; however, most models remain empirically untested. Range limits are correlated with a number of abiotic and biotic factors, but furth...

four genera and five species of idolothripinae are recorded in iran: allothrips hood, compsothrips reuter and pseudocryptothrips priesner each with one species, and megathrips targioni-tozzetti with 2 species. in this paper, the genus nesothrips kirkaldy, with one species n. brevicollis (bagnall) collected on grasses in marivan, kurdistan province, is recorded in iran for the first time. a key ...

Populations living in a spatially and temporally changing environment can adapt to the changing optimum and/or migrate toward favorable habitats. Here we extend previous analyses with a static optimum to allow the environment to vary in time as well as in space. The model follows both population dynamics and the trait mean under stabilizing selection, and the outcomes can be understood by compa...

Water striders of the subfamily Eotrechinae from the Phetchabun Mountain Range can be found at the margins of rock pools and puddles, and in hygropetric habitats including waterfalls. Twenty-two species in three genera are known from Thailand. In the Phetchabun Mountain Range, 12 species representing all three genera were recorded from over a decade of collections (2002-2012). This paper provid...

Many species expanded their geographic ranges from core "refugium" populations when the global climate warmed after the Pleistocene. The bottlenecks that occur during such range expansions diminish genetic variation in marginal populations, rendering them less responsive to selection. Here, we show that range expansion also strongly depletes inbreeding depression. We compared inbreeding depress...