Further evidence of continent-wide impacts of agricultural intensification on European farmland birds, 1990-2000
Further evidence of continent-wide impacts of agricultural intensification on European farmland birds, 1990-2000
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DOI：
10.1016/j.agee.2006.02.007
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发表时间：
2006-09-01
影响因子：
6.6
通讯作者：
van Bommel, Frans P. J.
中科院分区：
文献类型：
--
作者：
Donald, Paul F.;Sanderson, Fiona J.;van Bommel, Frans P. J.
在1990年至2000年期间，欧洲各地的农田鸟类数量显著下降，这一趋势与同期其他栖息地的鸟类群落不同。1990-2000年期间，每个农田物种的平均趋势与1970-1990年期间的趋势呈正相关，大多数物种的种群轨迹在30年期间几乎没有变化。在58种被独立评估归类为主要农田鸟类的物种中，41种在1990-2000年期间在整个欧洲表现出负的总体平均趋势，其中19种是重要的。所有农田物种的平均全国趋势与全国农业强度指数之间存在显着的负相关关系。当单独考虑19个衰退物种时，这种关系得到加强，而当只考虑非衰退物种时，这种关系并不明显。同期非农田鸟类的数量变化趋势与农业强度无关。农田鸟类种群的趋势是独立的农业环境处方下的农田比例。研究结果支持了早期的证据，即欧洲农田鸟类的种群趋势可以从国家农业统计数据中预测。如果要在扩大后的欧洲联盟实现2010年制止生物多样性丧失的目标，就必须对农业政策进行重大改革，特别是取消导致农业集约化的经济激励措施。(c)2006 Elsevier B. V.保留所有权利。
Between 1990 and 2000, farmland birds showed a significant decline across Europe, a trend not shared by bird assemblages of other habitats over the same period. Mean trends for each farmland species in the period 1990-2000 were positively correlated with trends over the period 1970-1990, and there was little change in population trajectory for most species over the 30-year period. Of the 58 species classed by an independent assessment as being primarily birds of farmland, 41 showed negative overall mean trends across Europe in 1990-2000, 19 of them significant. There was a significant negative correlation between mean national trends of all farmland species and indices of national agricultural intensity. This relationship strengthened when the 19 declining species were considered alone, and was not apparent when only non-declining species were considered. Population trends of terrestrial non-farmland bird species over the same period were unrelated to agricultural intensity. Trends in farmland bird populations were independent of the proportion of farmland under agri-environment prescriptions. The results support earlier evidence that population trends of farmland birds across Europe can be predicted from gross national agricultural statistics. Substantial changes in agricultural policy, particularly the removal of economic incentives that lead to agricultural intensification, are required if 2010 targets for halting loss of biodiversity are to be met in an enlarged European Union. (c) 2006 Elsevier B.V. All rights reserved.