A regional study is performed for the Amazonian species of the genus Microcentrum Scudder, 1862, its proposed Microcentrum punctifrons Brunner von Wattenwyl, 1891 as nomen dubium n. stat. and two new species are described: Microcentrum amacayacu Cadena-Casteñada, Sovano n. sp. and Microcentrum xavieri Sovano, Cadena-Casteñada n. sp. the Colombian and Brazilian Amazon, respectively. A list and a...

Faith et al. (2003) strongly criticize our paper (Posadas et al. 2001). Their criticisms are based on what they consider our “ill definitions” and “erroneous applications” of the words complementarity, endemism, and biodiversity. The objectives of our reply to Faith et al. are to demonstrate that their criticisms do not satisfy epistemological and methodological tenets and to compare some aspec...

The Far East of Russia is a region where boreal and tropical faunas mix; it also zone cladoceran endemism. present study aimed to compare set microcrustacean (Cladocera Copepoda) associations in three large lakes the Russian East: Khanka, Bolon, Chukchagir. microcrustaceans were identified based on function discrete hypergeometric distribution. Many 108 taxa found here unaffiliated with an asso...

Introduction: While the biodiversity value of springs is recognised, it has not been systematically compiled. The aim current study to highlight extraordinary endemism associated with isolated habitat arid-land at three locations in two continents. Methods: eukaryote species aquatic and terrestrial habitats Ash Meadows USA, Byarri Australia Cuatro Ciénegas Mexico was assembled based on their ge...

Based on comprehensive distributional records of the 23 species currently assigned to the lizard genus Tropidurus, we investigated patterns of endemism and area relationships in South America. Two biogeographic methods were applied, Parsimony Analysis of Endemicity (PAE) and Brooks Parsimony Analysis (BPA). Two areas of endemism were detected by PAE: the first within the domains of the semiarid...