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Title: Abundance and projected control of invasive house crows in Singapore
Authors: Brook, B.W.
Sodhi, N.S. 
Soh, M.C.K. 
Lim, H.C.
Keywords: Avian population management
Corvus splendens
Density dependence
Invasive species
Pest control
Population model
Reproductive rates
Southeast Asia
Issue Date: Oct-2003
Citation: Brook, B.W.,Sodhi, N.S.,Soh, M.C.K.,Lim, H.C. (2003-10). Abundance and projected control of invasive house crows in Singapore. Journal of Wildlife Management 67 (4) : 808-817. ScholarBank@NUS Repository.
Abstract: The Indian house crow (Corvus splendens) has successfully invaded tropical and subtropical regions well beyond its native range, reaching pest proportions in many areas. The invasive population of house crows in Singapore (Southeast Asia) has increased at least 30-fold since 1985 and now numbers in excess of 130,000 birds. To understand the population ecology and behavior of the house crow in Singapore, we undertook regular population size and roost surveys, dissections of birds shot (to provide age structure and breeding status), detailed nest-site observations, and monitoring of coastal dispersal. Using a discrete-time, density-dependent population model to synthesize this information, we demonstrated that at least 41,000 crows will need to be culled in the first year of a control program, and equivalent effort committed each year thereafter, to be confident of suppressing the Singapore population from its 2001 density of 190 birds/km2 to the management target of
Source Title: Journal of Wildlife Management
ISSN: 0022541X
Appears in Collections:Staff Publications

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