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Aamotsdalen - Norway |
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Afon Gwy - United Kingdom |
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Afon Hafren - United Kingdom |
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AGCV: CERRADO - Brasília, APA Gama Cabeça de Veado - Brazil |
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Agricultural Research and Education Centre Raumberg-Gumpenstein - Austria |
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Allt na Coire nan Con - United Kingdom |
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Appennino centrale: Gran Sasso d'Italia - Italy |
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Appennino centrale: Velino-Duchessa - Italy |
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Arava Platform (ARV) - Israel |
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AusLTER - Desert Ecology Plot Network - Australia |