Tag: Birds

Are declines in insects and insectivorous birds related?

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Author: Tallamy, Douglas W.; Shriver, W. Gregory Description: A flurry of recently published studies indicates that both insects and birds have experienced wide-scale population declines in the last several decades. Curiously, whether insect and bird declines are causally linked has received little empirical attention. Here, we hypothesize that insect declines are an important factor contributing to the decline of insectivorous birds. We further suggest that insect populations essential to insectivorous birds decline whenever non-native lumber, ornamental, or invasive plant species replace native plant communities. We support our hypothesis by reviewing…

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Farmland practices are driving bird population decline across Europe

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Author: Rigal, Stanislas; Dakos, Vasilis; Alonso, Hany; Aunins, Ainars; Benko, Zoltan; Brotons, Lluis; Chodkiewicz, Tomasz; Chylarecki, Przemyslaw; de Carli, Elisabetta; Del Moral, Juan Carlos; Domsa, Cristian; Escandell, Virginia; Fontaine, Benoit; Foppen, Ruud; Gregory, Richard; Harris, Sarah; Herrando, Sergi; Husby, Magne; Ieronymidou, Christina; Jiguet, Frederic; Kennedy, John; Klvanova¡, Alena; Kmecl, Primoz; Kuczynski, Lechoslaw; Kurlavicius, Petras; Kalas, John Atle; Lehikoinen, Aleksi; Lindstrom, Ake; Lorrilliere, Romain; Moshoj, Charlotte; Nellis, Renno; Noble, David; Eskildsen, Daniel Palm; Paquet, Jean-Yves; Pelissie, Mathieu; Pladevall, Clara; Portolou, Danae; Reif, Jiri­; Schmid, Hans; Seaman, Benjamin; Szabo, Zoltan D.; Szep,…

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Acceleration hotspots of North American birds’ decline are associated with agriculture

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Author: Leroy, Francois; Jarzyna, Marta A.; Keil, Petr Description: Human activities might have accelerated declines of population abundance, but this acceleration remains underexplored. Using 1033 North American Breeding Bird Survey routes, we analyze abundance change and its acceleration for 261 bird species, 54 avian families, and 10 habitats from 1987 to 2021. We show an average continent-wide decline of abundance of all birds per local route, with hotspots of decline in southern and warm parts of North America and hotspots of accelerating decline in the Mid-Atlantic, Midwest, and California, matching…

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