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Dutta, Sushil K.
- Opportunistic Predatory Behaviour in Duttaphrynus melanostictus (Schneider, 1799) Tadpoles
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Authors
Affiliations
1 Department of Zoology, North Orissa University, Baripada 757 003, IN
2 Plot No. 1573/01, Udyapuri (Gandamunda), Khandagiri, Bhubaneswar 751 030, IN
1 Department of Zoology, North Orissa University, Baripada 757 003, IN
2 Plot No. 1573/01, Udyapuri (Gandamunda), Khandagiri, Bhubaneswar 751 030, IN
Source
Current Science, Vol 112, No 08 (2017), Pagination: 1755-1759Abstract
We report in situ and ex situ observations on interand intra-specific predatory behaviour in tadpoles of the common Asian toad Duttaphrynus melanostictus. In situ D. melanostictus tadpoles feed on conspecific eggs, tadpoles of various developmental stages and adult carrion as well as dead heterospecific (Fejervarya orissaensis and Euphlyctis cyanophlyctis) tadpoles. Predation of weak, feebly swimming larvae and metamorphs in seminatural habitats under optimum conditions seems to be an opportunistic behaviour and diet enrichment, which needs additional support. Our observations support earlier reports indicating gradual desiccation, food shortage, competition and density as the probable factors of predation in temporary habitats.Keywords
Duttaphrynus melanostictus, Predation, Tadpole, Scavenger.Full Text
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