نتایج جستجو برای: dwelling bird species in iran
تعداد نتایج: 17079474 فیلتر نتایج به سال:
Ecological studies on road’s impact on wildlife have concentrated on vertebrates although less is known of their effects on invertebrates. The current study presents public road influences on species richness, abundance, and diversity of ground dwelling insects in Arusha National Park in Tanzania. Values from pitfall traps data were generally higher in core habitat than road verge. Nine species...
in this study, a simple, rapid and selective method was developed for the determination of dexamethasone. the proposed method is based on inhibitory effect of dexamethasone on the oxidation of orange-g by bromate in sulfuric acid media. the reaction was followed spectrophotometrically at 478.5 nm (?max). under optimum experimental conditions, (72.6 ?mol l-1 of orange-g, 0.76 mol l-1 of h2so4, 0...
abstract the present study was an attempt to investigate the effect of critical thinking on writing ability of 60 iranian intermediate efl learners studying at chenar language institute in khuzestan, iran. to this end, the participants of the study were selected based on their performance in an pet test, a cornell critical thinking test form x and a pre-test of writing. the participants un...
The species composition of a bird community is dependent upon many factors. Within any geographic area, vegetation structure may be the most important factor. The changes of bird community composition based on foraging behavior in relation to 3 different harvesting systems, including strip cutting, group selection logging, and single tree selection logging, was evaluated in a virgin area in thi...
Central to our understanding of the timing of bird evolution is debate about an apparent conflict between fossil and molecular data. A deep age for higher level taxa within Neoaves is evident from molecular analyses but much remains to be learned about the age of diversification in modern bird families and their evolutionary ecology. In order to better understand the timing and pattern of diver...
one of the most important factors in study of project’s , is the study of environmental opportunities factors the permanent study of environmental opportunity factors . the study of permanent environmental changing and knowing golden threats’ cooperate with possible threats and at the result in structure forming and future skeleton of organization has a vital effects . the petrochemical industr...
Abstract Okinawa Island, Japan, is a globally important biodiversity hotspot. Three endemic bird species, rail ( Hypotaenidia okinawae ), woodpecker Dendrocopos noguchii and robin Larvivora namiyei are found only in the Yambaru region of northern part Island. In order to conserve it determine effect alien species on species. We conducted playback surveys four times every three years from 2007 2...
An adult common mynah ( Acridotheres tristis ) was presented with severe signs of progressive depression , anorexia , debilitation , and also a history of moderate pododermatitis for the last two months . Hepatomegally was diagnosed clinically and radio-logically . The bird died a couple of hours after referral . Postmortem examination revealed typical liver enlargement with yello...
Received 26 November 2011 Accepted 10 November 2012 Abstract The purpose of the present study was to investigate levels of nickel in feathers of the Western Reef Heron Egretta gularis (N=15) and Siberian Gull Larus heuglini (N=15). Bird samples were collected from November to December 2010 in Hara Biosphere Reserve. Assaying nickel by using Shimadzu AA 680 flame atomic absorption spectrophotome...
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