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Abstract
To reveal the dietary ecology of the peregrine falcon (Falco peregrinus), we conducted a molecular analysis for mitochondrial genes (COI and CYTB) to identify the prey species collected from a feeding place found on Sasu Island, South Korea. The results from noninvasive genetic analysis showed that the sequences obtained came from nine species of birds (Cuculus canorus, Eurystomus orientalis, Limosa limosa, Microscelis amaurotis, Oriolus chinensis, Phasianus colchicus, Sterna hirundo, Streptopelia orientalis, and Turdus pallidus). Five of the species (C. canorus, M. amaurotis, S. hirundo, S. orientalis, and T. pallidus) had previously been observed on this island, but the other four species (E. orientalis, L. limosa, O. chinensis, and P. colchicus) were newly identified as present. No mtDNA sequences of land animals such as amphibians, reptiles, and mammals were found in the dietary remains, suggesting that the peregrine falcon preys mostly on other birds rather than on other animals inhabiting Sasu Island. This island has rich avian diversity and abundant animal populations and therefore supplies sufficient dietary resources for the peregrine falcon. Our findings suggested that a DNA-based molecular method may be useful to identify the prey species of these birds and may be valuable in future studies of the Endangered peregrine falcon.
Published Version
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