摘要
研究了以麻雀为代表的鸟类数量变化及分布特征,分析了鸟类数量减少的主要原因,揭示了环境变迁与鸟类的种群动态变化关系。研究表明,环境变化对鸟类的数量及其分布产生重要影响,植被破坏、城乡建设以及农药、化肥的大量施用等是引起某些鸟类数量减少的重要原因,而鸟类的种群动态也反映或预示了环境的变化趋势。
In 1999～2001, a survey was made of the population size of 37 bird species in 40 districts and counties under the jurisdiction of China's Chongqing Municipality so as to investigate the quantitative changes and distribution characteristics of birds, especially sparrows (Passer), in this region. The results showed that environmental changes had great impacts on the quantity and distribution of birds. Vegetation destruction, infrastructure construction and the application of high rates of chemical fertilizers and pesticides were the main causes for the decline in the quantity of birds. Therefore, the population dynamics of birds can be taken as an indicator that reflects the trends of environmental changes.
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2004年第1期84-87,共4页
Journal of Southwest Agricultural University
基金
重庆市科委项目(合同编号:6118)资助
关键词
鸟类
麻雀
环境变化
种群动态
bird
Passer
environmental change
population dynamics
