SUGGESTIONS FOR CALCULATING NEST SUCCESS
SUGGESTIONS FOR CALCULATING NEST SUCCESS
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发表时间：
2016
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通讯作者：
H. Mayfield
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作者：
H. Mayfield
没有考虑到每个巢的观察时间跨度的筑巢成功的报告通常会低估损失，有时误差可能非常大。十多年前，我指出了这个问题，并提出了解决它的方法(Mayfield 1960：192-204；1961)。从那时起，许多实地考察的学生都使用了这种方法，事实证明，它在组合来自许多来源的数据片段方面特别有帮助，康奈尔大学的北美Nest-Record计划就是这样做的。然而，并不是每一份发表的报告都显示出对这个问题的认识，调查信显示，一些人因为难以了解细节而不愿处理这一问题。因此，我提出这些进一步的建议，以尽可能简化程序。
Reports of nesting success that do not take into account the time span of observation for each nest usually understate losses, and sometimes the error can be very large. More than a decade ago I pointed out this problem and proposed a way of dealing with it (Mayfield 1960:192-204; 1961). Since that time many field students have used the method, and it has proved especially helpful in combining fragments of data from many sources, as in the North American Nest-record Program at Cornell University. However, not every published report shows awareness of the problem, and letters of inquiry have shown that some people are deterred from dealing with it because of difficulty with details. Therefore, I offer these further suggestions to simplify the procedure as much as possible.