We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
MIGRATING BIRDS STOP OVER LONGER THAN USUALLY THOUGHT: REPLY.
- Authors
Pradel, Roger; Schaub, Michael; Jenni, Lukas; Lebreton, Jean-Dominique
- Abstract
The article presents the author's reply to the comments made to his article related to the stopover duration of migrating birds. The author says that it was pinpointed in the comment that his method for estimating the stopover duration of a migrant at an intermediate migration site presented in 2001 and implemented in software SODA overestimates the stopover duration of a migrating bird when emigration is a Poisson process. It was established in the comment that the estimate is twice the true stopover duration and was recommended getting back to the formula for life expectancy. The author said that he and his team of researchers did not assumed that the stopover duration of the birds follows a Poisson distribution. According to the author, the application of stopover duration are correct only for day 5 while their formula yields correct estimates all the time. Both the suggestions for estimating stopover duration are specific to the underlying distribution of the stopover duration. According to the author there is need for research for understanding better in which situations the different estimates of the stopover duration are biased.
- Subjects
BIRD migration; POISSON processes; MORTALITY; POISSON distribution; DISTRIBUTION (Probability theory)
- Publication
Ecology, 2005, Vol 86, Issue 12, p3418
- ISSN
0012-9658
- Publication type
Article
- DOI
10.1890/05-1881