Behaviour analysis of the loggerhead sea turtle Caretta caretta from direct in-water observation
Behaviour analysis of the loggerhead sea turtle Caretta caretta from direct in-water observation
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直接水下观察对赤蠵龟 Caretta caretta 的行为分析
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
G. Hays
中科院分区：
文献类型：
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作者：
G. Schofield;K. A. Katselidis;P. Dimopoulos;J. Pantis;G. Hays
直接观察动物行为对于有效保护濒危物种的自然栖息地、了解它们在生态系统中的功能和验证利用远程技术得出的结论至关重要。本研究的目的是通过直接观察记录红海龟Caretta Caretta在温带繁殖区的日间行为活动。2003年4月至2005年7月间，在287小时的观察时间内，记录了海龟的初次发现行为，包括1534次单独（雄性80例，雌性1335例）和群居（同性65例，雌雄混合54例）活动。我们将观察到的活动分为4种单独行为和2种社会行为，并将其分为14个子类别。独居行为包括休息、游泳、觅食和打扫卫生。社会行为包括敌对互动和繁殖活动。在繁殖地区，红海龟的觅食、清洁和雌龟之间的竞争在已发表的文献中没有记录。结果表明：在繁殖期内，雄性行为主要是群居和活跃的；雌性行为主要是独居和不活跃的。
Direct observation of animal behaviour is essential for the effective conservation of endangered species in their natural habitat, understanding their function within ecosystems and val- idating inferences made using remote technology. The aim of this study was to document the daytime behavioural activity of loggerhead sea turtles Caretta caretta at a temperate breeding area through direct observations. Between April and July of 2003 to 2005, turtle behaviour on initial sighting was recorded during 287 h of observation, comprising 1534 sighting events of solitary (n = 80 male, n = 1335 female) and social (n = 65 same sex, n = 54 mixed sex) activity. We grouped observed activities into 4 solitary and 2 social behaviours, which were divided into 14 sub-categories. Solitary behaviour included resting, swimming, foraging and cleaning. Social behaviour included antagonistic interac- tions and reproductive activity. Foraging, cleaning and female-female contests are not documented in published literature for loggerhead sea turtles at breeding areas. Our results suggest that during the breeding period (1) male behaviour was primarily social and active (2) female behaviour was primarily solitary and inactive.