1 / 8

29th Annual Symposium on Sea Turtle Biologie & Conservation Brisbane, 17 – 19 February 2009

29th Annual Symposium on Sea Turtle Biologie & Conservation Brisbane, 17 – 19 February 2009. GREEN TURTLES IN THE EPARSE ISLANDS: POPULATION STATUS BASED ON 20 YEARS TREND OF DAILY TRACK COUNTS. Jérôme Bourjea , Cyril Marmoex, Marie Lauret-Stepler and Stéphane Ciccione.

paige
Download Presentation

29th Annual Symposium on Sea Turtle Biologie & Conservation Brisbane, 17 – 19 February 2009

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 29th Annual Symposium on Sea Turtle Biologie & Conservation Brisbane, 17 – 19 February 2009 GREEN TURTLES IN THE EPARSE ISLANDS: POPULATION STATUS BASED ON 20 YEARS TREND OF DAILY TRACK COUNTS Jérôme Bourjea, Cyril Marmoex, Marie Lauret-Stepler and Stéphane Ciccione

  2. THE 5 FRENCH EPARSE ISLANDS IN THE SWIO GLORIEUSES BASSAS DE INDIA TROMELIN EUROPA JUAN DE NOVA

  3. STUDY SITES

  4. 1987 – 2006 Tot. nesting females: 2000 to 4000 /yr 1987 – 2006 1984 – 2006 Tot. nesting females: 1000 to 3000 /yr Tot. nesting females: 7000 to 10 000 / yr DAILY GREEN TURTLE TRACK COUNTS

  5. Annual linear growth rate:3.5 [3.4 – 3.6] Annual linear growth rate:2 [1.7 – 2.7] Annual linear growth rate:- 1.6 [-1.8 – -1.3] TREND: SMOOTHING SPLINE ANOVA MODEL

  6. SEASONALITY PATTERN (Mean tracks per month over the period)

  7. MAIN NESTING GREEN TURTLE POPULATION STATUS IN THE SWIO Moheli : 4000 – 6000 (20%) Glorieuses : 2000 – 4000 (3.5%) Mayotte : 2000 – 4000 (1%) Tromelin : 1000 – 3000 (-1.6%) La Réunion : 2 +/- 1 (200%!!! ) Europa : 7000 – 10 000 (2%)

  8. THANK YOU!

More Related