Diversity indices, particularly the Shannon-Wiener index, have extensively been used in analyzing patterns of diversity at different geographic and ecological scales. These indices have serious conceptual and statistical problems which make comparisons of species richness or species abundances across communities nearly impossible. There is often no a single statistical method that retains all i...

This study aims to identify and determine species diversity and richness of the Gastropods of the intertidal zone of Bushehr seaport coastal area and assess the ecological status of this area using Welch index. Sampling was carried out at 6 stations in Bushehr seaport in the winter and summer seasons during 2013-2014. Bed sediment sampling was done three times in each station and Gastropod samp...

Abstract Knowledge about biotic (plant species diversity, biomass) and/or abiotic (physicochemical substrate parameters) factors that determine enzyme activity and functional diversity of the on hard coal spoil heaps is limited. Spontaneously developed vegetation patches dominated by herbaceous commonly occurring these heaps: grasses ( Poa compressa, Calamagrostis epigejos ) forbs Daucus carota...

Dioscorea bulbifera L. is widely distributed in pantropical regions along the equator. The taxonomic treatment of this species is ambiguous due to its extreme polymorphic morphological characters. In order to provide tools to facilitate the study of genetic diversity, population structure, patterns of gene flow, and the mating system of this species, and to assess intraspecific variability and ...

This study sought to clarify the composition of soil fungal and bacterial communities along an elevation gradient in arid montane ecosystem as well influence environmental factors (soil properties, climate, topography, plant diversity) upon microbial community structures. Four vegetation types—montane desert steppe (mean elevation: 1761 m), shrub 2077 subalpine coniferous forest 2485 2903 m)—we...

Avian diversity of two zones within the main campus IMSIU University was studied during period from July 2019 to June 2020. A total number 1,653 individual birds recorded across which falls under fifteen species belonging thirteen families. Out this number, 760 them were in Zone-A versus 893 Zone-B. Species richness 15 while Zone-B 13. Census index Birds as follows: 4.6 Birds/ha and 7.9 both Zo...

This study aims to identify and determine species diversity and richness of the Gastropods of intertidal zone of Bushehr seaport coastal field and assess ecological status of the area using Welch index. Sampling was carried out at 6 stations in Bushehr seaport in winter and summer seasons during 2013-2014. Sampling bed sediments was done three times in each station and Gastropod samples were co...

Plant Diversity conservation is a main objective in rangelandmanagement. Plant diversity is a suitable index for showing the changes ofvegetation in rangelands and has a high correlation with ecosystem parameters.Therefore, using this index it is possible to find the changes and manage theecosystem correctly. The current research was performed to determine the speciesdiversity in Fashandak rang...

The present paper documents/discuss the preliminary study on litter insect abundance and diversity of species in through pitfall trap different ecosystems South 24 Parganas District conducted during November, 2021- March, 2022. A total 905 insects from 8 orders, 25 families were recorded. This shows that Hymenoptera (44%) was most dominant order according to number individuals, followed by Cole...

The seasonal variation of fish species composition and abundance in gillnet catches (14-90 mm knot-to-knot) from the Greek part of the transboundary Lake Doirani was studied during the period 2006-2007. A total of 8,419 specimens weighing 182.3 kg and belonging to 9 species were caught. Catch composition differed with season. Thus, Rhodeus meridionalis dominated in terms of NPUE the spring, Per...