Tout ce que nous percevons de la lumière résulte d’une interaction avec la matière. De fait, lumière et matière sont toujours des entités intimement liées. Mais leur double nature – classique et quantique – interroge et ouvre sur de multiples applications étonnantes.
723 The status of our bird populations: the fifth Birds of Conservation Concern in the United Kingdom, Channel Islands and Isle of Man and second IUCN Red List assessment of extinction risk for Great Britain Andrew Stanbury, Mark Eaton, Nicholas Aebischer, Dawn Balmer, Andy Brown, Andy Douse, Patrick Lindley, Neil McCulloch, David Noble and Ilka Win
The FitzPatrick Report The Gough Island Restoration Programme to rid the island of the invasive house mice decimating the seabird population is an ambitious and far-reaching project.
SABAP The millions of records collated by SABAP2 have enabled detailed distribution maps to be built, allowing researchers to better understand birds and their movements. Interestingly, the data can also be used to monitor bird migration patterns.
Stay or go? Migration as an evolutionary driver While almost one fifth of all birds undertake regular movements, usually tied to seasonal cycles, such large-scale movements also incur risks. The balance between these costs and benefits determines who stays and who migrates. Recent studies suggest that migration also promotes speciation.
Birds of the oases and desert in Chad African Parks recently sent an expedition into north-eastern Chad to conduct the first ornithological census of the Ennedi Natural and Cultural Reserve. A 10-day adventure into the middle of the desert, the survey resulted in the first bird list for this area: 189 species.