Dunbar et al, 2008

Dunbar et al, 2008
Dunbar et al 2008.pdf
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Direct observations of animals at different life history stages provide important information regarding habitat use and behavior. Furthermore, understanding daily movements and activity patterns of sea turtles can provide insights into important foraging and resting sites, and therefore critical habitats (Seminoff et al., 2002) that may require specific conservation measures. Focal follows of marine turtles have been reported by several authors �(Houghton et al. 2000; Diez et al. 2002; Houghton et al. 2003; Meadows 2004; Schofield et al. 2006). Meadows (2004) used focal-animal activity budget observations to study impacts of human-turtle interactions and categorized observed behaviors as inactive on the bottom, swimming in the water column, being at the surface, active on the bottom, and feeding. � � � �� � � � In addition to a variety of solitary behaviors such as resting, swimming (Booth & Peters 1972; Schofield et al. 2006), foraging (Booth & Peters 1972; Houghton et al. 2000; Schofield et al. 2006), food handling (Davenport & Clough 1985), and self-grooming (Schofield et al. 2006; Frick & McFall 2007), several authors have directly recorded social interactions of male and female turtles, including antagonism and mating in loggerhead turtles (Caretta caretta) (Schofield et al. 2006), and initial courtship interactions, mounting behavior and intermale aggression in green turtles (Chelonia mydas) (Booth & Peters 1972; Jessop et al. 1999). However, relatively few direct observations of juvenile sea turtle activities are available in the published literature (Davenport & Clough 1985; van Dam & Diez 1997; Houghton et al. 2003), and we are unaware of reports of direct, in-water observations of captive-held turtles that have been released.

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