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

Investigating the birds as an indicator of heavy metal pollution is very useful because the biology of birds is well-known, also birds feed on the higher trophic in the ecosystems, so they can provide information about the extent of pollution in the entire food web. This research was done in 2018 to investigate the distribution of heavy metals (lead, iron, zinc, copper, manganese) in different tissues (kidney, liver, muscle, and feather) of Passer domesticus in Dezful city. A total of 60 domestic sparrows from the urban area and 10 from a rural area (Abolhassan village of Dezful city) were randomly collected in the spring with the help of local natives. Biometric characteristics such as body length, wing length, weight and gender were also studied. Acid digestion method was used to prepare the samples. The results were analyzed using SPSS software. The order of accumulation of heavy metals in the feather of Passer domesticus in rural and urban areas was: Fe> Zn> Mn> Pb> Cu. Based on the results, the average Fe, Cu, Zn and Mn in urban areas were 106.67, 1.95, 12.43, 32.41 mg/kg and 2.69 mg/kg for Pb respectively. Also, the average concentrations of heavy metals of Fe, Cu, Zn and Mn in the gentian organs of rural areas were 95.96, 1.26, 100.44, 23.88 mg/kg and 2.75 mg/kg for Pb respectively. Comparison between mean values of zinc and manganese in rural and urban areas were significantly at the level of 0.05.

Determining the specifications of Passer domesticus nests was implemented from March 2009 to May 2010 in 3 parks which located in Shushtar city namely Kolah Farangi, Shahid Khedri and Darioon with 4000m2, 4.500m2 and 10000m2 areas, respectively. The majority of trees covers in these parks were Zizphus Spinachrist, Eucalyptus Camaldulensis, and Albizia Lebbeck. In this study, from 369 nests, 40 were measured in terms of nest length, width, depth, depth length, weight, height to ground and tree diameter. The results showed that the lowest length in nests and tree diameter were in Darioon park (n=16), the highest tree diameter, nest weight, and nest height to the ground were in Shahid Khedri park (n=15), and the lowest width, depth, depth length, weight and height to the ground were in Kolah Farangi park (n=9).