Reynolds, John E., Morales-Vela, Benjamin, Lawler, Ivan, and Edwards, Holly H. (2012) Utility and design of aerial surveys for sirenians. In: Hines, Ellen M., Reynolds III, John E., Aragones, Lemnuel V., Mignucci-Giannoni, Antonio A., and Marmontel, Miriam, (eds.) Sirenian Conservation. University Press of Florida, Florida, USA, pp. 186-195.

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Abstract

[Extract] Aerial surveys have been used as a tool to assess aspects of sirenian biology for three decades. Although aerial surveys can be a useful method of assessing sirenian population distribution and abundance, they can be logistically difficult and expensive and may not always be the appropriate method. Budget and the availability of reliable aircraft, skilled pilots, and trained staff must be considered before deciding to use aerial surveys. Equally important is the feasibility of detecting an animal from an aircraft, especially if habitat characteristics conceal animals. Aerial survey practitioners have learned a number of lessons over the years. Here we provide an overview to help others decide whether they should adopt aerial survey as a technique and if so, how best to ensure that he surveys meet their objectives.

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