Home Ranges and movements of adult male green sea turtles (chelonia mydas) in San Crist?bal Island, Gal?pagos, Ecuador
- Authors
- Mu?oz P?rez, Juan Pablo
- Format
- MasterThesis
- Status
- publishedVersion
- Description
The following aims, for the first time in Galapagos Islands Ecuador, to investigate the uncertain adult male sea turtle home ranges. We had undertaken +- 190 hours of active tracking on Chelonia mydas adult male specimens in their reproductive season. Fity Alpha Hull was selected as the most accurate core area estimate, this ranged from 0.08 to 0.28 km 2; core areas aproximity to shores ranged from 0.33 to 0.91 kilometers and core area bathymetry ranged from 10 to 60 meters. We observed a selected overlap in home range areas Our data indicated two distinct types of movements. Two turtles showed spherical movements with a high fidelity to the capture-release location plus a net displacement, which ranged from 0.17 to 0.30 km. Another turtle showed low fidelity to the capture-release location with a net displacement of 22.35 km. Turtles in this study moved significantly further during diurnal vagility versus nocturnal vagility. However, there were no significant differences between diurnal net vagility versus nocturnal net vagility and diurnal travel speeds versus noctural travel speeds.
- Publication Year
- 2013
- Language
- eng
- Topic
- DIN?MICA POBLACIONAL
DEMOGRAF?A
CONSERVACI?N MARINA
USO DE H?BITAT
RANGO DE VIDA
CHELONIA MYDAS
- Repository
- Repositorio SENESCYT
- Rights
- openAccess
- License