Journal article
Reproductive output and ultrasonography of an endangered population of East Pacific green turtles
The Journal of wildlife management, v 76(4), pp 841-846
01 May 2012
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Reproductive output is one of the most relevant aspects of life history. We analyzed the reproductive output of the endangered East Pacific green turtle (Chelonia mydas) nesting in Nombre de Jesus, Costa Rica. We supplemented beach patrols with ultrasonography to estimate clutch frequency. With ultrasound scans, we classified the stage of turtle ovaries as: early stage (2 or more clutches), late stage (1 clutch), and depleted ovaries (no clutches). We calculated mean (+/- SD) estimated clutch frequency (ECF) to be 3.7 +/- 1.8 (n?=?24) and an adjusted frequency considering individual stage (ECFU; ECF?+?number of clutches remaining as observed in the last ultrasound) as 5.1 +/- 1.3. This is greater than previously described for East Pacific green turtles. Greater individual output could be representative of a healthier population; but could also indicate a decrease in the estimate population numbers previously reported. (C) 2011 The Wildlife Society.
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Details
- Title
- Reproductive output and ultrasonography of an endangered population of East Pacific green turtles
- Creators
- Gabriela S. Blanco - Drexel UniversityStephen J. Morreale - Cornell UniversityElizabeth Velez - Kelonian Conservation Society, Apartado 473-3000, Heredia, Costa RicaRotney Piedra - Parque Nacional Marino Las Baulas, Ministerio de Ambiente, Energía y Telecomunicaciones Apartado 10104-1000, San José, Costa RicaWilder M. Montes - Goldring Marine Biology Station, Playa Grande, Guanacaste, Costa RicaFrank V. Paladino - Indiana University – Purdue University Fort WayneJames R. Spotila - Drexel University
- Publication Details
- The Journal of wildlife management, v 76(4), pp 841-846
- Publisher
- Wiley
- Number of pages
- 6
- Grant note
- Leatherback Trust Betz Chair Endowment of Drexel University Wildlife Conservation Society
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:000302998300019
- Scopus ID
- 2-s2.0-84860110083
- Other Identifier
- 991019168522004721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Ecology
- Zoology