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DOI | 10.1111/cobi.13307 |
Long-term declines of European insectivorous bird populations and potential causes | |
Bowler, Diana E.1,2,3; Heldbjerg, Henning4,5; Fox, Anthony D.5; de Jong, Maaike6; Boehning-Gaese, Katrin1,7 | |
发表日期 | 2019 |
ISSN | 0888-8892 |
EISSN | 1523-1739 |
卷号 | 33期号:5页码:1120-1130 |
英文摘要 | Evidence of declines in insect populations has recently received considerable scientific and societal attention. However, the lack of long-term insect monitoring makes it difficult to assess whether declines are geographically widespread. By contrast, bird populations are well monitored and often used as indicators of environmental change. We compared the population trends of European insectivorous birds with those of other birds to assess whether patterns in bird population trends were consistent with declines of insects. We further examined whether declines were evident for insectivores with different habitats, foraging strata, and other ecological preferences. Bird population trends were estimated for Europe (1990-2015) and Denmark (1990-2016). On average, insectivores declined over the study period (13% across Europe and 28% in Denmark), whereas omnivores had stable populations. Seedeaters also declined (28% across Europe; 34% in Denmark), but this assessment was based on fewer species than for other groups. The effects of insectivory were stronger for farmland species (especially grassland species), for ground feeders, and for cold-adapted species. Insectivory was associated with long-distance migration, which was also linked to population declines. However, many insectivores had stable populations, especially habitat generalists. Our findings suggest that the decline of insectivores is primarily associated with agricultural intensification and loss of grassland habitat. The loss of both seed and insect specialists indicates an overall trend toward bird communities dominated by diet generalists. |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
来源期刊 | CONSERVATION BIOLOGY
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/103159 |
作者单位 | 1.Senckenberg Biodivers & Climate Res Ctr, Senckenberganlage 25, D-60325 Frankfurt, Germany; 2.Norwegian Inst Nat Res, POB 5685 Torgard, N-7485 Trondheim, Norway; 3.German Ctr Integrat Biodivers Res iDiv, Deutsch Pl 5E, D-04103 Leipzig, Germany; 4.DOF BirdLife Denmark, Vesterbrogade 140, DK-1620 Copenhagen, Denmark; 5.Aarhus Univ, Dept Biosci, Grenavej 14, DK-8410 Ronde, Denmark; 6.Czech Soc Ornithol, Pan European Common Bird Monitoring Scheme, Na Belidle 34, Prague 15000, Czech Republic; 7.Goethe Univ Frankfurt, Inst Ecol Evolut & Divers, Max von Laue St 13, D-60439 Frankfurt, Germany |
推荐引用方式 GB/T 7714 | Bowler, Diana E.,Heldbjerg, Henning,Fox, Anthony D.,et al. Long-term declines of European insectivorous bird populations and potential causes[J],2019,33(5):1120-1130. |
APA | Bowler, Diana E.,Heldbjerg, Henning,Fox, Anthony D.,de Jong, Maaike,&Boehning-Gaese, Katrin.(2019).Long-term declines of European insectivorous bird populations and potential causes.CONSERVATION BIOLOGY,33(5),1120-1130. |
MLA | Bowler, Diana E.,et al."Long-term declines of European insectivorous bird populations and potential causes".CONSERVATION BIOLOGY 33.5(2019):1120-1130. |
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