Effect of Research or Field Activities on the Whiskered Tern (Chlidonias hybridus) Breeding Success in Marzoonabad Artificial Wetland (Mazandaran Province, IRAN)

This study concludes of activities and researches during May- September, 2003. Two groups of nests were selected (group A, B). At group A, boat movements and human activities for primary measurements of egg laying time to chick fledged time were recorded but at group B, all observations were occurred of outside with binocular. Clutch size in group A and B was varied between 1-5 and 1-4 eggs, respectively. Breeding success in group A and B were calculated %82.96 and %84.64, respectively. Chi square results indicated, there is not any significant difference between two groups (P>0.05). Field or Research activities have not any role on the Whiskered Tern (C.hybridus) breeding success.