Assessing reliance on vector navigation in the long-distance oceanic migrations of green sea turtles

Giulia Cerritelli, Giuseppe Bianco, Giacomo Santini, Annette C Broderick, Brendan J Godley, Graeme C Hays, Paolo Luschi and Susanne Åkesson

Behavioral Ecology, 2019, vol. 30, issue 1, 68-79

Abstract: We modeled the oceanic migration of turtles nesting in the remote Ascension Island to gain insights into the unknown mechanisms of open sea navigation. We show that a simple strategy of maintaining a single heading for a given amount of time can account for the turtles’ postnesting migrations directed to targets along the Brazilian coast, while for prebreeding migrations aimed at reaching the isolated Ascension Island, reliance on more complex, map-like systems seems crucial.

Keywords: clock and compass; individual-based models; migration; navigational strategies (search for similar items in EconPapers)
Date: 2019
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