Effects of annual changes in primary productivity （初级生产力的年度变化的影响）.pdfVIP

Vol. 351: 273–286, 2007 MARINE ECOLOGY PROGRESS SERIES Published December 6 doi: 10.3354/meps07119 Mar Ecol Prog Ser Effects of annual changes in primary productivity and ocean indices on breeding performance of tropical roseate terns in the western Indian Ocean David Monticelli1, 2,*, Jaime A. Ramos3, Graham D. Quartly4 1Royal Belgian Institute of Natural Sciences, Section of Conservation Biology, 29 Rue Vautier, 1000 Brussels, Belgium 2 Laboratory of Tropical and Subtropical Forestry, Unit of Forest and Nature Management, Gembloux Agricultural University, 2 Passage des Déportés, 5030 Gembloux, Belgium 3 Institute of Marine Research (IMAR), Department of Zoology, University of Coimbra, 3004-517 Coimbra, Portugal 4 National Oceanography Centre, Southampton (NOCS), Empress Dock, Southampton, Hampshire SO14 3ZH, UK ABSTRACT: We assessed the influence of inter-annual changes in primary productivity and local, regional and large scale ocean indices on the breeding parameters of roseate terns Sterna dougallii on Aride Island, Seychelles, western Indian Ocean. Productivity (chicks per breeding pair), timing of breeding and clutch and egg sizes were monitored annually for 8 yr and correlated with local ocean productivity (denoted by Sea-viewing Wide Field-of-view Sensor, SeaWiFS, estimates of chlorophyll concentration, CC), sea surface temperature and indices recording the status of the Indian Ocean Dipole and of El Niño. The rate of increase in CC between mean laying date and CC peak value was positively related to roseate tern productivity and mean clutch size over the 1998 to 2005 study period. Colony pr