样点法在森林鸟类调查中的运用

Application of point count method in forest birds survey

样点法由于具有易于实施、更易做到随机化或系统化以及适合于复杂及斑块化生境等优点,已成为目前使用最为广泛的森林鸟类调查方法。本文在介绍样点法的假设条件、类型和影响鸟类调查准确性因素的基础上,重点介绍了样点法在调查森林鸟类需要考虑的样本大小、样点布设、调查时间、每点的停留时间和调查周期等。同时也分析了样点法的不足,并提出样点法与网捕法结合是提高调查结果准确性的有效途径。

Point count method has the advantages of being easy to implement and allowing randomization and systematization in sampling, and is particularly suitable for counting birds in fragmented or spatially complex habitats. Because of this, it has become the most popular method for counting forest birds. In this paper, the assumptions, types, and limiting factors of using point count method in bird survey were introduced, with the focus on the appropriate selection of sample size, sampling points and sampling time, and the durations of efforts. The disadvantages of point count method were also pointed out, and the use of this method in conjunction with netcatch was suggested, aimed to improve the accuracy of bird survey.