FN Archimer Export Format
PT J
TI Long-Term Monitoring of Green Turtle Nesting on Tromelin Island Demonstrates Stable Reproduction and Population Parameters
BT 
AF DERVILLE, Solene
   JEAN, Claire
   DALLEAU, Mayeul
   LE GAL, Jean-Yves
   CICCIONE, Stephane
   BOURJEA, Jerome
AS 1:1,2;2:2;3:2;4:3;5:2;6:4,5;
FF 1:;2:;3:;4:;5:;6:PDG-RBE-DOI;
C1 Univ Lyon, UCB Lyon1, Ecole Normale Super Lyon, Dept Biol, Lyon, France.
   Kelonia, Observ Tortues Marines La Reunion, St Leu 97436, Reunion.
   ENSAgro, F-35042 Rennes, France.
   IFREMER, Delegat Ocean Indien, Le Port 97822, Reunion.
   Univ Reunion Isl, CNRS, INEE FRE3560, St Denis 97715, Reunion.
C2 UNIV LYON, FRANCE
   KELONIA, FRANCE
   ENSAGRO, FRANCE
   IFREMER, FRANCE
   UNIV LA REUNION, FRANCE
SI LA REUNION
SE PDG-RBE-DOI
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 0.6
TC 10
UR https://archimer.ifremer.fr/doc/00273/38424/36794.pdf
LA English
DT Article
DE ;Reptilia;Testudines: Cheloniidae;Chelonia mydas, green turtle;nesting activity;population assessment;Indian Ocean;Tromelin Island
AB Situated about 500 km off the Malagasy east coast, the island of Tromelin is a key nesting site for the endangered green turtle, Chelonia mydas, in the south Western Indian Ocean. Nesting turtles found in this isolated island have been closely monitored since the 1970s, but the most recent estimates of nesting parameters date from 1986. Using mark-recapture data, track counts, and nests monitoring data collected over the 2009/2010 nesting peak, reproductive characteristics, population size, and offspring production were updated and discussed in the light of the track survey undertaken from 1986 to 2010. Females showed a consistent reproductive behaviour compared with previous studies in terms of clutch frequency (2.75 +/- 1.46) and nesting success (0.65). Nest indices such as hatching success (0.76 +/- 0.25) and emergence success (0.61 +/- 0.33) were also included in the range of values calculated in the 1980s. Importantly, the estimated number of nesters and production in eggs and hatchlings were similar to older estimates, suggesting a relative demographic stability. For the 2009/2010 year-long nesting season, the size of the nesting population was estimated at about 1500 individuals, which produced around 480,900 eggs (+/- 103,900), resulting in 289,200 emerging hatchlings (+/- 152,000). These results are promising and support the effectiveness of conservation measures undertaken in the Iles Eparses, but further comparable monitoring is needed in the coming years to confirm the stability in Tromelin's green turtle nesting population.
PY 2015
PD JUL
SO Chelonian Conservation And Biology
SN 1071-8443
PU Chelonian Research Foundation
VL 14
IS 1
UT 000356529000003
BP 11
EP 20
DI 10.2744/ccab-14-01-11-20.1
ID 38424
ER

EF