Journal
ECOLOGY AND EVOLUTION
Volume 11, Issue 23, Pages 16647-16660Publisher
WILEY
DOI: 10.1002/ece3.8282
Keywords
assemblage; bird; conservation; Europe; population change
Categories
Funding
- European Commission [07.0202/2017/755630/SUB/ENV, 07.0202/2018/790700/SER/ENV.D.3, 07.0202/2019/821208/SER/ENV.D.2]
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While global assessments indicate biodiversity decline, local studies present a more balanced view of biodiversity change. The multifaceted nature of biodiversity and imperfect monitoring datasets may explain these findings. Using extensive data, significant biodiversity loss in the native avifauna of the European Union has been identified, particularly among bird species associated with agricultural land.
Although global assessments provide evidence of biodiversity decline, some have questioned the strength of the evidence, with local assemblage studies often showing a more balanced picture of biodiversity change. The multifaceted nature of biodiversity and imperfect monitoring datasets may partially explain these findings. Here, using an extensive dataset, we find significant biodiversity loss in the native avifauna of the European Union (EU). We estimate a decline of 17-19% in the overall breeding bird abundance since 1980: a loss of 560-620 million individual birds. Both total and proportional declines in bird numbers are high among species associated with agricultural land. The distribution of species' population growth rates (ln) is centered close to zero, with numerical decline driven by substantial losses in abundant species. Our work supports previous assessments indicating substantial recent biodiversity loss and calls to reduce the threat of extinctions and restore species' abundances, for the sake of nature and people.
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