The aim of this study was to investigate the diversity and distribution patterns of orchid bees (Euglossina). Cluster and correlation analyses were applied to data extracted from 28 orchid-bee surveys throughout the Neotropical Region. The 28 sampling sites were grouped in three main biogeographic areas that roughly correspond to the Amazonian Basin, the Atlantic Forest and Central America. The...

iran contains 36 named endemic reptile species in 17 genera and seven families. the most endemic and speciose family is the gekkonidae, followed by the lacertidae. these two families collectively dominate with 22 species (or 60.1%) of the total endemic herpetofauna. twenty one endemics are known only from a single location or restricted area within a single physiographic region. an analysis of ...

Methods In this study, we used data on the dated phylogeny and geographical distribution of 1400 tree species in southern Africa to map regional hotspots of species richness (SR), phylogenetic diversity (PD), phylogenetic endemism (PE), species endemism (CWE), and evolutionary distinctiveness and global endangerment (EDGE). In addition, we evaluated the efficiency of hotspots in capturing compl...

Many phylogeographic studies have revealed strongly diverged lineages within species that are masked by a lack of congruent morphological differentiation. To assess the extent to which the genetic component of diversity affects conservation assessments, we compared spatial patterns of endemism and conservation value for 22 species of Californian amphibians and reptiles with the 75 phylogeograph...

the mountainous area of fereizi is located in northwestern binalood range, khorassan, north east of iran. special climatic and geographical characteristics of the area make it a suitable habitat for various plant species. as a part of a research poject on the flora and vegetation of binalood mountain range, the floristic composition of this area, life forms and chorology of vascular plants have...