Amphibian diversity and abundance in relation to pesticide residues in village ponds and Kanjli Wetland
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Date
2022
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Punjab Agricultural University, Ludhiana
Abstract
The present study investigates amphibian diversity and abundance in relation to pesticide residues in village ponds (Chotian Kalan, Darapur and Kukhrana) of district Moga and Kanjli Wetland and was carried out from June 2021 to May 2022. The results revealed the occurrence of three amphibian species (Duttaphrynus stomaticus, Hoplobatrachus tigerinus and Euphlyctis cyanophlyctis) belonging to order Anura and two families (Bufonidae and Dicroglossidae). Abundance of amphibians was reported to be highest in village Chotian Kalan followed by village Darapur and village Kukhrana of district Moga. Comparison of sites such as land and water showed that diversity and abundance of amphibians was higher on land as compared to water in all three village ponds and Kanjli Wetland. Duttaphrynus stomaticus was found only on land and not in water. Hoplobatrachus tigerinus was found to be heaviest as compared to other two species. A positive correlation of amphibian population was recorded between temperature and relative humidity. The recoveries of pesticide residues were below the limit of quantification (0.01 mg kg-1) in soil, water and excretory contents of amphibians of selected sites. Our findings imply that amphibian species prefer agricultural ecosystem as compared to residential areas. Hence, new ponds should not be constructed near residential areas due to negative consequences of urbanisation and anthropogenic habitat change.
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Ankita (2022). Amphibian diversity and abundance in relation to pesticide residues in village ponds and Kanjli Wetland (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.