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Development of wing morphology in the Indian pygmy bat Pipistrellus mimus



Development of wing morphology in the Indian pygmy bat Pipistrellus mimus



Journal of Biosciences 22(2): 193-202



The growth and development of the wing parameters of the Indian pygmy bat Pipistrellus mimus was studied under natural conditions. Newborn young were marked with nontoxic coloured paint and were later marked with split rings. The wingspan and wing area showed linear growth until the age of five weeks, after which the rate of growth decreased. The observations on flight showed that at the age of 19 days the young were able to flutter their wings, at the age of 22 days they flew for a short distance and at the age of 29 days they exhibited sustained flight. The development of wing loading and aspect ratio are also presented. The decrease in wing loading as the bat grown is discussed as an advantage to sustain flight. The aspect ratio showed a high degree of scatter at early stages of life which decreased at the later period of growth. In general the development of wing morphology of P. mimus is similar to that of other vespertilionid bats.

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Accession: 008455740

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