Title
Characterizing the trade of wild birds for merit release in Phnom Penh, Cambodia and associated risks to health and ecology
Author(s)
Gilbert, M.;Sokha, C.;Joyner, P. H.;Thomson, R. L.;Poole, C.
Published
2012
Publisher
Biological Conservation
Abstract
Demand for captive wild animals for the purposes of religious or 'merit' release has led to establishment of a large commercial trade in many parts of East and South Asia. The practice is associated with a number of risks to the integrity of wild populations including establishment of non-native species, introduction of pathogens and unsustainable rates of harvest. This study describes the sale of birds for merit release in Phnom Penh, Cambodia over a 13 month period. Birds were available throughout the year with an estimated annual turnover of 688,675 individuals. A total of 57 species were observed, all of which were considered native to Cambodia. Health surveys detected 43/415 (10.36%) birds carrying influenza A virus, 1/97 (1.03%) carrying Chlamydophila psittaci, and 4/97 (4.12%) carrying Mycobacterium genavense. Tests for Mycobacterium avium were unable to detect the bacterium. The zoonotic potential of each of these agents presents a risk both to public health as well as to wild populations. Without estimates of pre- and post-release mortality the impact of wild harvests for merit release cannot be assessed with certainty. However, 12,751 individual observations of the globally Near Threatened Asian golden weaver (Ploceus hypoxanthus), represents a significant portion of the estimated global population and is a cause for concern. Also of conservation concern are the low numbers of red avadavat (Amandava amandava) and yellow-breasted bunting (Emberiza aureola), both species that have undergone heavy declines due to historical over-exploitation, the latter now being classified as globally Vulnerable. (C) 2012 Elsevier Ltd. All rights reserved.
Keywords
Wild bird trade;Merit release;Health;Cambodia;TRACHEMYS-SCRIPTA-ELEGANS;TURTLE EMYS-ORBICULARIS;MYCOBACTERIUM-GENAVENSE;ANIMAL RELEASE;PCR;INFECTIONS

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PUB13831