Many macroecological patterns of biodiversity, including the relationship between latitude and species richness, are well-described. Data collected in a repeatable, standardized manner can advance the discipline beyond the description of patterns and be used to elucidate underlying mechanisms. Using standardized field methods and a hyper-diverse focal taxon, viz. Coleoptera, we aim to (1) descr...

northwest of shir-kuh batholith, a number of leucocratic granitic and granodioritic plutons have intruded sedimentary hosts including shale-sandstone (triassic-jurassic) and sandstone-conglomerate (lower cretaceous). contact metamorphism and hydrothermal alterations are widespread. late alteration assemblage mainly occurs in arkosic sandstones of sangestan formation and includes propylitic, qua...

the permian deposits in the stratigraphic section of sangsar (located in the eastern alborz), are the best expose in the semnan area. this sequence consists of the doroud (asselian-sakmarian), ruteh (artinskian-murgabian) and nessen (early djulfian) formations. the dorud formation in the studied section with 56 m thickness consists of conglomerate, sandstone and quartzite, which is disconformit...

Species assemblage in a local community is determined by the interplay of evolutionary and ecological processes. The Tropical Niche Conservatism hypothesis proposes mechanisms underlying patterns of biodiversity in biological communities along environmental gradients. This hypothesis predicts that, among other things, clades in areas with warm or wet environments are, on average, older than tho...

the objective of this study was to diagnose integrative ecological health of an urban stream,which is located in the asian temperate region. the research approach was primarily based on the index ofbiological integrity (ibi) using fish assemblage and a qualitative habitat evaluation index (qhei). and these indexes were compared with long-term conventional chemical dataset during 1996-2005. for ...

The genus Microhyla Tschudi, 1838 includes 52 species and is one of the most diverse genera family Microhylidae, being species-rich taxon Asian subfamily Microhylinae. recent, rapid description numerous new with complex phylogenetic relationships has made taxonomy group especially challenging. Several recent studies suggested paraphyly respect to Glyphoglossus Günther, 1869, revealed three majo...

The state’s astounding variety of biotic communities with their diverse collections of plants and animals is examined in this chapter. The living laboratory we call California is so enormous and biologically diverse that the study of it poses some problems: Where do we start? How do we organize our study? How do we classify the various living environments? Of course, these same problems confron...

Early Carboniferous coiled nautiloids from North Africa are virtually unknown. An assemblage of nine species, all the family Trigonoceratidae, Dalle à Merocanites (Tournaisian-Viséan boundary interval) Timimoun in western Algeria is described, being most diverse nautiloid known but much less than time-equivalent assemblages Belgium and Ireland. The consists species Maccoyoceras pentagonum sp. n...

This research focusses on the biostratigraphy and paleoecological implications of the carbonatesof the Asmari Formation. The Asmari Formation is located in the Siah Kuhanticline of Izeh, Zagros Basin, SW Iran. It is of Late Oligocene (Chattian) - Early Miocene (Burdigalian) age. In this stratigraphic section, the Asmari Formation overlies the Pabdeh Formation and underlies the Gachsaran Formati...