When migratory birds travel to wintering grounds, what factors determine where they decide to stay? This study presents an analysis of the monthly climatic variation of the distribution of 13 neotropical migratory birds throughout the winter season.
Ships transport myriad marine organisms around the world in ballast water that may, when exchanged, introduce foreign species that become invasive in suitable areas. This study surveyed ballast water of eight foreign ships landing at the Norwegian archipelago of Svalbard, carrying out morphological and molecular analyses of the organisms on board.
Modern civilizations are depleting commercial fisheries leading to regulation excluding local indigenous peoples from traditional harvesting territories. This affects the Aleut peoples of the western Gulf of Alaska, who have depended on marine resources for nearly 10,000 years.