机构地区:[1]Ecologie Systématique Evolution,UniversitéParis-Sud,CNRS,AgroParisTech,UniversitéParis-Saclay,91405 Orsay Cedex,France [2]Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering,College of Life Sciences,Beijing Normal University,Beijing 100875,China [3]Faculty of Exact and Natural Sciences,Institute of Biological Sciences,Siedlce University of Natural Sciences and Humanities,ul.B.Prusa 14,08-110 Siedlce,Poland [4]Cypresvej 1,9700 Brønderslev,Denmark [5]House of Bird Research,Taps,6070 Christiansfeld,Denmark [6]Department of Biotechnology,Daugavpils University,Daugavpils 5401,Latvia [7]Department of Bioscience,Aarhus University,Grenåvej 14,8410 Rønde,Denmark [8]Ministry of Education Key Laboratory for Ecology of Tropical Islands,Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province,College of Life Sciences,Hainan Normal University,Haikou 571158,China
出 处:《Avian Research》2021年第3期412-420,共9页鸟类学研究(英文版)
基 金:supported by the Latvian Council of Science (grants lzp-2018/2-00057 and lzp-2020/2-0271);supported by the National Natural Science Foundation of China (Grant Nos. 31772453 and 31970427)
摘 要:Background:The abundance of insects has decreased considerably during recent decades,resulting in current abundance showing 70-80%reductions in more than 15 studies across temperate climate zones.Dramatic reduc-tions in the abundance of insects are likely to have consequences for other taxa at higher trophic levels such as preda-tors and parasites.Pesticides,fertilizers and agricultural land use are likely candidates accounting for such reductions in the abundance of insects.Methods:Here we surveyed the abundance of flying insects,and the reduction in the abundance of insects as a consequence of intensive reduction in agricultural practice linked to fertilizer use and pesticide use.Finally we dem-onstrated consistency in abundance of birds among study sites.Results:We demonstrated that the use of fertilizers and pesticides had reduced the abundance of insects,with consequences for the abundance of insectivorous bird species such as Barn Swallows(Hirundo rustica),House Martins(Delichon urbicum)and Swifts(Apus apus).Juvenile Barn Swallows were negatively affected by the reduced abundance of insects and hence the reproductive success of insectivorous bird species.These effects imply that the abundance of insects could be reduced by the availability of insect food.Conclusions:These effects of intensive agriculture on insect food abundance are likely to have negative impacts on populations of insects and their avian predators.This hypothesis was validated by a reduction in the abundance of insects,linked to an increase in the abundance of fertilizers and a general change in farming practice.
关 键 词:Aerial insectivores Fecundity of insects Insect abundance Insectivores Insects
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