Ponds from Alaska are disappearing and being covered by excessive vegetation according to a study in the Journal of Geophysical Research: Biogeosciences. It will affect to migratory birds and some threatened duck species like the Steller’s Eider (Polysticta stelleri) and the Spectacled Eider (Somateria fischeri) because they spend the winter in the Aleutian Islands in the south of Alaska then migrate to the north of the state and in parts of Siberia during the summer to nest and feed. It has also implications for global climate change.
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