Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

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Nest site selection by individual leatherback turtles (Dermochelys coriacea, Testudines: Dermochelyidae) in Tortuguero, Caribbean coast of Costa Rica
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Keywords

scatter nest hypothesis
Dermochelys coriacea
nest site repeatability
nesting patterns
nest distribution
hipótesis de dispersión de nidos
Dermochelys coriacea
repetición de sitios de anidación
patrones de anidación
distribución de nidos

How to Cite

Neeman, N., Wehrtmann, I. S., & Bolaños, F. (2015). Nest site selection by individual leatherback turtles (Dermochelys coriacea, Testudines: Dermochelyidae) in Tortuguero, Caribbean coast of Costa Rica. Revista De Biología Tropical, 63(2), 491–500. https://doi.org/10.15517/rbt.v63i2.14654

Abstract

Nest site selection for individual leatherback sea turtles, Dermochelys coriacea, is a matter of dispute. Some authors suggest that a female will tend to randomly scatter her nests to optimize clutch survival at a highly dynamic beach, while others suggest that some site fidelity exists. It is also possible that both strategies exist, depending on the characteristics of each nesting beach, with stable beaches leading to repeating nest site selections and unstable beaches leading to nest scattering. To determine the strategy of the Tortuguero population of D. coriacea, female site preference and repetition were determined by studying whether females repeat their nest zone choices between successive attempts and whether this leads to a correlation in hatching and emergence success of subsequent nests. Nesting data from 1997 to 2008 was used. Perpendicular to the coastline, open sand was preferred in general, regardless of initial choice. This shows a tendency to scatter nests and is consistent with the fact that all vertical zones had a high variability in hatching and emergence success. It is also consistent with nest success not being easily predictable, as shown by the lack of correlation in success of subsequent nesting attempts. Along the coastline, turtles showed a preference for the middle part of the studied section of beach, both at a population level and as a tendency to repeat their initial choice. Interestingly, this zone has the most artificial lights, which leads to slightly lower nest success (though not significantly so) and hatchling disorientation. This finding merits further study for a possibly maladaptive trait and shows the need for increased control of artificial nesting on this beach.

 

https://doi.org/10.15517/rbt.v63i2.14654
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References

Atkinson, C., Nolasco del Aguila, D., & Harrison, E. (2011). Report on the 2010 Leatherback Program at Tortuguero, Costa Rica. Caribbean Conservation Corporation. Retrieved from http://www.conserveturtles.org/pdf/reports/Tortuguero%20Leatherback%20Report%202010.pdf).

Bell, B., Spotila, J. R., Paladino, F. V., & Reina, R. D. (2003). Low reproductive success of leatherback turtles, Dermochelys coriacea, is due to high embryonic mortality. Biological Conservation, 115, 131-138.

Bjorndal, K. A., & Bolten, A. B. (2010). Spatial distribution of green turtle (Chelonia mydas) nests at Tortuguero, Costa Rica. Copeia, 1992, 45-53.

Carr, A., & Ogren, L. (1959). The ecology and migrations of sea turtles, 3 Dermochelys in Costa Rica. American Museum Novitates, 1958, 2-29.

Caut, S., Guirlet, E., Jouquet, P., & Girondot, M. (2006). Influence of nest location and yolkless eggs on the hatching success of leatherback turtle clutches in French Guiana. Canadian Journal of Zoology, 84, 908-915.

Dutton, D. L., Dutton, P. H., Chaloupka, M., & Boulon, R. H. (2005). Increase of a Caribbean leatherback turtle Dermochelys coriacea nesting population linked to long-term nest protection. Biological Conservation, 126, 186-194.

Eckert, K. (1987). Environmental unpredictability and leatherback sea turtle (Dermochelys coriacea) nest loss. Herpetologica, 43, 315-323.

Eckert, K. L., & Eckert, S. A. (1990). Embryo mortality and hatch success in In situ and translocated leatherback sea turtle Dermochelys coriacea eggs. Biological Conservation, 53, 37-46.

Fowler, L. E. (1979). Hatching success and nest predation in the green sea turtle, Chelonia mydas, at Tortuguero, Costa Rica. Ecology, 60, 946-955.

Kamel, S. J., & Mrosovsky, N. (2004). Nest site selection in leatherbacks, Dermochelys coriacea: individual patterns and their consequences. Animal Behaviour, 68, 357-366.

Kamel, S. J., & Mrosovsky, N. (2005). Repeatability of nesting preferences in the hawksbill sea turtle, Eretmochelys imbricata, and their fitness consequences. Animal Behaviour, 70, 819-828.

Katilimis, Y., Urhan, R., Kaska, Y., & Baskale, E. (2006). Invertebrate infestation on eggs and hatchlings of the loggerhead turtle, Caretta caretta, in Dalaman, Turkey. Biodiversity and Conservation, 15, 3721-3730.

Lamont, M. M., & Houser, C. (2014). Spatial distribution of loggerhead turtle (Caretta caretta) emergences along a highly dynamic beach in the northern Gulf of Mexico. Journal of Experimental Marine Biology and Ecology, 453, 98-107.

Mrosovsky, N. (1983). Ecology and nest-site selection of leatherback turtles Dermochelys coriacea. Biological Conservation, 26, 47-56.

Mrosovsky, N. (2006). Distorting gene pools by conservation: Assessing the case of doomed turtle eggs. Environmental Management, 38, 523-31.

NOAA (Turtle Expert Working Group). (2007). An assessment of the leatherback turtle population in the Atlantic Ocean. NOAA Technical Memorandum NMFS-SEFSC-555.

Nordmoe, E. D., Sieg, A. E., Sotherland, P. R., Spotila, J. R., Paladino, F. V., & Reina, R. D. (2004). Nest site fidelity of leatherback turtles at Playa Grande, Costa Rica. Animal Behaviour, 68, 387-394.

Pike, D. (2008). The benefits of nest relocation extend far beyond recruitment: a rejoinder to Mrosovsky. Environmental Management, 41, 461-464.

Pritchard, P. (1982). Nesting of the leatherback turtle, Dermochelys coriacea in Pacific Mexico, with a new estimate of the world population status. Copeia, 1982, 741-747.

Reina, R. D., Mayor, P. A., Spotila, J. R., Piedra, R., & Paladino, F. V. (2002). Nesting ecology of the leatherback turtle, Dermochelys coriacea, at Parque Nacional Marino Las Baulas, Costa Rica, 1988-1989 to 1999-2000. Copeia, 2002, 653-664.

Runemark, A. (2006). Spatial distribution and temperature effects on hatching success of the leatherback turtle Dermochelys coriacea: implications for conservation (Master thesis). Uppsala University, Sweden.

Santidrián-Tomillo, P., Velez, E., Reina, R. D., Piedra, R., Paladino, F. V, Spotila, J. R., & Vélez, E. (2007). Reassessment of the leatherback turtle (Dermochelys coriacea) nesting population at Parque Nacional Marino Las Baulas, Costa Rica: effects of conservation efforts. Chelonian Conservation and Biology, 6, 54-62.

Sarmiento, R. (2007). Caracterización del material maderifero de deriva sobre un sector de la playa de Anidación de Tortugas Marinas, Tortuguero – Costa Rica. STC Internal Document.

Sarti Martinez, A. L. (2000). Dermochelys coriacea. In IUCN 2006. 2006 IUCN Red List of Threatened Species. Retrieved from www.iucnredlist.org

Spotila, J. R., Dunham, A. E., & Leslie, A. J. (1996). Worldwide population decline of Dermochelys coriacea: Are leatherback turtles going extinct? Chelonian Conservation and Biology, 2, 209-222.

Spotila, J. R., Reina, R., Steyermark, A., Plotkin, P. & Paladino, F. (2000). Pacific leatherback turtles face extinction. Nature, 405, 529-530.

Troëng, S., Chacón, D., & Dick, B. (2004). Possible decline in leatherback turtle Dermochelys coriacea nesting along the coast of Caribbean Central America. Oryx, 38, 395-403.

Wallace, B. P., DiMatteo, A. D., Bolten, A. B., Chaloupka, M. Y., Hutchinson, B. J., Abreu-Grobois, F. A., & Mast, R. B. (2011). Global conservation priorities for marine turtles. PloS One, 6, e24510.

Whitmore, C. P., & Dutton, P. H. (1985). Infertility, embryonic mortality and nest-site selection in leatherback and green sea turtles in Suriname. Biological Conservation, 34, 251-272.

Witherington, B., & Martin, R. (1996). Understanding, assessing, and resolving light-pollution problems on sea turtle nesting beaches. Florida Marine Research Institute Technical Report TR-2.

Zar, J. H. (2010). Biostatistical Analysis. USA: Prentice Hall.

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