25 September 2010Secretary-General Ban Ki-moon has welcomed moves by the United Nations and the community of French-speaking nations to work more closely on human rights, peacekeeping and other issues, saying it can only contribute to greater security worldwide. Speaking last night to an International Organization of la Francophonie (OIF) event in New York, Mr. Ban said the two organizations were working closely together on many fronts, from peace and security to economic development.“We continue to strengthen our cooperation in the crucial areas of peacekeeping, conflict prevention and electoral assistance,” he said. “We are on the ground together in Haiti, in the Central African Republic (CAR), in Guinea, Niger, Madagascar, Mauritania and the Comoros.”Earlier this year the UN High Commissioner for Human Rights Navi Pillay and OIF Secretary-General Abdou Diouf signed an agreement for closer collaboration on promoting human rights.“This is a wide spectrum of activity, and testimony to our strong partnership,” he said, noting that an estimated 200 million people worldwide are French speakers.
Linking extreme interannual changes in prey availability to foraging behaviour and breeding investment in a marine predator, the macaroni penguin
Understanding the mechanisms that link prey availability to predator behaviour and population change is central to projecting how a species may respond to future environmental pressures. We documented the behavioural responses and breeding investment of macaroni penguins Eudyptes chrysolophus across five breeding seasons where local prey density changed by five-fold; from very low to highly abundant. When prey availability was low, foraging trips were significantly longer and extended overnight. Birds also foraged farther from the colony, potentially in order to reach more distant foraging grounds and allow for increased search times. These extended foraging trips were also linked to a marked decrease in fledgling weights, most likely associated with reduced rates of provisioning. Furthermore, by comparing our results with previous work on this population, it appears that lowered first-year survival rates associated, at least partially, with fledging masses were also evident for this cohort. This study integrates a unique set of prey density, predator behaviour and predator breeding investment data to highlight a possible behavioural mechanism linking perturbations in prey availability to population demography.