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Does behaviour affect the dispersal of flatback post-hatchlings in the Great Barrier Reef?

Title: Does behaviour affect the dispersal of flatback post-hatchlings in the Great Barrier Reef?.
Name(s): Wildermann, Natalie, author
Critchell, Kay, author
Fuentes, Mariana M P B, author
Limpus, Colin J, author
Wolanski, Eric, author
Hamann, Mark, author
Type of Resource: text
Genre: Journal Article
Date Issued: 2017-05-24
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The ability of individuals to actively control their movements, especially during the early life stages, can significantly influence the distribution of their population. Most marine turtle species develop oceanic foraging habitats during different life stages. However, flatback turtles () are endemic to Australia and are the only marine turtle species with an exclusive neritic development. To explain the lack of oceanic dispersal of this species, we predicted the dispersal of post-hatchlings in the Great Barrier Reef (GBR), Australia, using oceanographic advection-dispersal models. We included directional swimming in our models and calibrated them against the observed distribution of post-hatchling and adult turtles. We simulated the dispersal of green and loggerhead turtles since they also breed in the same region. Our study suggests that the neritic distribution of flatback post-hatchlings is favoured by the inshore distribution of nesting beaches, the local water circulation and directional swimming during their early dispersal. This combination of factors is important because, under the conditions tested, if flatback post-hatchlings were entirely passively transported, they would be advected into oceanic habitats after 40 days. Our results reinforce the importance of oceanography and directional swimming in the early life stages and their influence on the distribution of a marine turtle species.
Identifier: FSU_pmch_28573024 (IID), 10.1098/rsos.170164 (DOI), PMC5451825 (PMCID), 28573024 (RID), 28573024 (EID), rsos170164 (PII)
Keywords: Great Barrier Reef, SLIM oceanographic model, Directional swimming, Flatback turtle, Marine turtles, Neritic dispersal
Publication Note: This NIH-funded author manuscript originally appeared in PubMed Central at
Persistent Link to This Record:
Owner Institution: FSU
Is Part Of: Royal Society open science.
Issue: iss. 5, vol. 4

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Wildermann, N., Critchell, K., Fuentes, M. M. P. B., Limpus, C. J., Wolanski, E., & Hamann, M. (2017). Does behaviour affect the dispersal of flatback post-hatchlings in the Great Barrier Reef? Royal Society Open Science. Retrieved from