Population dynamics, genetic variation and evaluation of pesticide residues in Indian flying fox Pteropus giganteus
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Date
2021
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Punjab Agricultural University, Ludhiana
Abstract
The present study was conducted to estimate the population abundance and dynamics of
Pteropus giganteus, its preference in roosting sites, genetic variation and evaluation of
pesticide residues at Chatpat Bani (district Pathankot), village Katani Kalan (district
Ludhiana) and village Longowal (district Sangrur) during 2019-20. The mean bat population
on different tree species was higher at Chatpat Bani than at village Longowal. At Chatpat
Bani, mean bat population was maximum during summer (3139.0) whereas maximum during
winters (425.0) at Longowal. At Chatpat Bani, per cent bat population roosted on trees was
highest on Indian ash tree (79.0%) and lowest on Punjab fig (2.38%) whereas it was highest
on safeda (50.88%) and lowest on ber tree (3.37%) at Longowal. At Chatpat Bani, the
concentration level of heavy metals was estimated in faecal pellets and among all, Cr (17.35
ppm) was highest while As (0.99 ppm) was lowest, whereas at Katani Kalan, the
concentration level of Cr (24.87 ppm) was highest while Cd (0.64 ppm) was lowest and at
Longowal, highest concentration levels were recorded in Cr (26.30 ppm) while lowest in Cd
(1.72 ppm). In a similar trend, concentration levels of macro- and micro-elements varied in all
selected locations. Contamination of pesticide residues in faecal pellets was found negligible
as GLC showed values below detectable limits i.e., <0.05 ppm at selected locations. The
genetic variability of P. giganteus was studied in Pathankot and Ludhiana using faecal pellet
samples. The full-length nucleotide sequences of bat mtCOI gene are 702 bp in both samples.
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Citation
Gagandeep Kaur (2021). Population dynamics, genetic variation and evaluation of pesticide residues in Indian flying fox Pteropus giganteus (Unpublished M.Sc. thesis). Punjab Agricultural University, Ludhiana, Punjab, India.