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Resource tracking within and across continents in long-distance bird migrants [Science Advances]

Keywords : migration, birds, seasonal vegetation, NDVI, climate change

par Frédéric Magné - publié le

Migratory birds track seasonal resources across and between continents. We propose a general strategy of tracking the broad seasonal abundance of resources throughout the annual cycle in the longest-distance migrating land birds as an alternative to tracking a certain climatic niche or shorter-term resource surplus occurring, for example, during spring foliation. Whether and how this is possible for complex annual spatiotemporal schedules is not known. New tracking technology enables unprecedented spatial and temporal mapping of long-distance movement of birds.(...)

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