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1 April 2003 An assessment of a Galapagos Rail population over thirteen years (1986 to 2000)
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Abstract

The Galapagos Rail (Laterallus spilonotus) is endemic to the Galapagos Archipelago and little is known of its current status or population trends. In 2000, we surveyed 280 points in the largest population, on Santa Cruz Island, using call broadcast methods identical to those used in a baseline survey of the same area in 1986. The probability of detecting rails at sample points declined from 36% to 27% between surveys. An invasive woody plant, Cinchona succirubra, was not detected in 1986 yet was present at nearly three-fourths of survey points in 2000 and was avoided by rails in 2000. We recommend that future research and monitoring be conducted to determine the importance of Cinchona removal programs for maintaining this largest of populations of the Galapagos Rail.

James P. Gibbs, W. Gregory Shriver, and Hernan Vargas "An assessment of a Galapagos Rail population over thirteen years (1986 to 2000)," Journal of Field Ornithology 74(2), 136-140, (1 April 2003). https://doi.org/10.1648/0273-8570-74.2.136
Received: 23 January 2002; Accepted: 1 June 2002; Published: 1 April 2003
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