نتایج جستجو برای: species abundance distribution
تعداد نتایج: 1161462 فیلتر نتایج به سال:
Seasonal distribution of species composition, cell abundance and biomass of phytoplankton of the Caspian Sea were investigated in 2005. This survey were fulfilled in 6 transects and 26 stations A total of 260 samples were collected during winter to autumn in the southern part of Caspian Sea. Totally, 163 species of phytoplankton were identified (71 species Bacillariophyta, 31 species Chlorophy...
During a survey of Gahar Lake and Gahar River from 2008 to 2009 some specimen obtained by seasonal sampling in 6 stations, 3 stations in the lake and 3 stations in the river. Three different methods were used for sampling, gill net and hook in the lake and electrofishing in the river. Due to the results 3 species from 2 families in Gahar Lake and 12 species form 3 families in Gahar River were...
The aim of this research was to identify the plant species, introducing the flora and plant geographical distribution of Islamabad Gharb area, Kermanshah province. This area, with 4654 km2, is located in Kermanshah province. The method of plant collection was field survey which is one of classical methods of floristic studies. The geographical distribution and life form of plant species were de...
Background and purpose: Scorpionism is a public health problem in Darmian City. This study was conducted to determine the biodiversity and faunistic of scorpions in order to discover the health preventive features of scorpion sting among the residents of these regions. Methods: A nightly and daily actively searching on distribution and biodiversity of scorpions was carried during April 2015 t...
Although macrobenthic assemblages are considered as major players in many ecosystems around the world, the ecology of Caspian Sea macrobenthos is currently understudied. This study describes the species composition and quantitative distribution of macrobenthos in the southern Caspian Sea and relates the distribution to seasonal changes at three depths (1, 5 and 10 meters) on the Boojagh Marine ...
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