5 4. Results..........................................................................................................................97 5. Discussion ....................................................................................................................99 6. Supplementary information .........................................................................................102 Chapitre 4. Conservation implications of the spatiotemporal distribution of loggerhead turtle nesting activities in a multi fragmented coral-reef islets rookery. ........................................106 1. Abstract ......................................................................................................................109 2. Introduction .................................................................................................................109 3. Material & Methods .....................................................................................................111 3.1 Study area.............................................................................................................111 3.2 Nesting activity and nesting success .....................................................................112 3.3 Environmental and anthropogenic drivers of nesting site selection ........................114 3.3.1 Islet geographical features and exposure to anthropogenic disturbances ....114 3.3.2 Habitat characterization ...............................................................................115 3.3.3 Statistical analysis of nesting site selection ..................................................116 4. Results........................................................................................................................116 4.1 Spatiotemporal distribution of nesting activities .....................................................116 4.2 Nesting site selection.............................................................................................120 4.2.1 Inter-islet nesting site selection ....................................................................120 4.2.2 Influence of habitat characteristics upon nesting site selection.....................121 5. Discussion ..................................................................................................................122 5.1 Spatial distribution of nesting activities and site selection patterns in a multiple sites rookery ........................................................................................................................122 5.2. Identification of conservation targets, threats nature and efficient management strategies.....................................................................................................................124 6. Supplementay information ..........................................................................................126 Synthèse générale, conclusions et perspectives ................................................................131 Contexte et objectifs du programme doctoral ..................................................................131 Evaluation de l’intensité de ponte annuelle sur la zone du GLS (chap 1) ........................132 Caractériser le niveau de connectivité entre la Roche Percée et le GLS (chap 2). ..........139
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