نوع مقاله : مقاله پژوهشی
کلیدواژهها
عنوان مقاله English
نویسندگان English
In the wildlife habitat management, maintaining water quality and quantity, especially in the arid ecosystems of Iran that are faced to relative limitations and dryness tension of water resources is one of the planning fundament in conserving wildlife populations. Natural water resources and artificial troughs are the main sources of water supplier for wildlife in the Qatrouyeh National park in Fars province. The aim of this study was to survey the microbial and physiochemical indexes of water resources used by wildlife in this area and to compare them with national standards. In this study, sampling was carried out in 11 water resources during summer 2023 and spring 2024 and three samples from each water resource and a total of 66 samples were collected throughout the study period. Finally, the samples were transferred to the lab in glass sterile containers and the parameters of total coliform, fecal coliform, temperature, turbidity, pH and sodium were measured. The results showed that the mean of total coliform in all water resources and the mean of fecal coliform in all water resources (with the exception of Chahmohsen and Qatrouyeh station trough in spring) was more than Iranian national standard during the study period. Also, the results showed that the means of total and fecal coliforms were higher during the spring 2024 than the summer 2023 because heavy spring rainfalls caused to wash surface soil around water resources and transfer human dung, animal feces and bird guano into them. Also, the mean of sodium during summer in the all water resources (with the exception of Chahgooni and Chahqolqaji) and during spring in the all water resources (with the exception of the Chahqolqaji) was more than the Iranian national standard. On the other hand, lack of change of the sodium means during the study period showed that most of the water resources were salinated. Salty and microbial-contaminated water cause to defection of watery feces, diarrhea, weight loss and digestive diseases in species especially in endangered species of the Persian onager. Therefore, according to the temporal and spatial variability of coliforms and its effect accompanying physiochemical factors of water (especially temperature and sodium) which cause disease, death and wildlife population reductions, the plan of restricting the access of domestic animals and standardization the structure of water resources while monitoring, identifying and cleaning up their contaminations are recommended.
کلیدواژهها English