جستجوی مقالات مرتبط با کلیدواژه « kolahi » در نشریات گروه « محیط زیست »

The purpose of this study was investigate the overwintering Scolopacidae population in the two regions Hara Protected Area (HPA) and Haray Tiab and Minab (Kolahy, Hasan langhi and tiab Estuaries) in the Hormozgan Provence between 2007 and 2012, respectively. According to the results of a 6-year period, A total of 22 species from Scolopacidae have overwintering in the study Areas Which the number of species observed in the HPA and Kolahy, Hasan langhi, and tiab Estuaries was 20,20,17,19 species. Among the species identified from the Scolopacidae In the period that was studied, Two species Dunlin(Calidris alpina) and Eurasian Curlew(Numenius arquata) Respectively 41/08 and 17/26 percent of total observations, were The most abundant species. According to the findings of this study the most observed population was related to HPA(37054 Bird) And the lowest was in the kolahy eustary (5949Bird). Evaluation of biodiversity index and diversity graph sorting by Renyi method showed Hassan langhi estuary with species diversity indices Shannon-Wiener’s(2/18) and Simpson’d(7/14), And The values for Species Abundance(17) and indexes of the evenness Pielou J (0/69)and McIntosh E(0/82)compared to Other areas the has higher biodiversity (P<0/05) And been able to provide the suitable habitat for Scolopacidae. On the other, Analysis of Similarity Percentages(SIMPER) for Hara protected area and Kolahy, Hasan langhi and tiab Estuaries in Ordering was %61/11, %55/89, %46/20 and%63/75. Analysis of Similarity(ANOSIM) Indicated that between HPA and and Kolahy, Hasan langhi and tiab Estuaries And Also Between Hasan langhi estuary And Kolahi estuary There is significant difference between the relative similarity of the total observations (P<0/05). Distribution of the of species in the HPA and tow estuary of Kolahi and tiab from Logarithmic series distribution model and in Hasan langhi estuary from Broken stick model were subordination.

Numerical index of diversity, Combination of species richness and evenness are two important components But one of the Important problems of This indexes is this Do not separate the contributions of these two components is the numeric index value. One of the most effective and efficient methods to compute Contribution of these two components is the numeral diversity of SHE analysis The method of calculating the two components permits. This review is from mid- winter census water birds of Hasan langhi(Namaki), kolahi and tiab estuaries During the six years(1385-1390) In order to clarify Factors influencing the Numerical index of diversity was used. Calculation of diversity indices showed The variation in tiab, Hasan langhi and kolahi estuaries In order to 1388,1388,1389 Higher than other years, Shannon Wiener diversity index, Pielou J Richness index was the same frequency as and Evenness index, where (H'=3/15),(44) and (j'=0/75);( H'=3/2),(41) and (j'=0/79);( H'=2/99),(37)and(j'=0/74) Respectively. The results indicate that the factors influencing the numerical index variation is uniform in all three components of the estuary. In this period of intense change the landscape for birds Been observed in three assorted which means that the species composition have been relatively consistent.