Site fidelity, mate fidelity, and breeding dispersal in American Kestrels.(Report): An article from: The Wilson Journal of Ornithology
Book Details
Author(s)Karen Steenhof, Brit E. Peterson
PublisherWilson Ornithological Society
ISBN / ASINB0026IUIYW
ISBN-13978B0026IUIY2
AvailabilityAvailable for download now
MarketplaceUnited States 🇺🇸
Description
This digital document is an article from The Wilson Journal of Ornithology, published by Wilson Ornithological Society on March 1, 2009. The length of the article is 6754 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available immediately after purchase. You can view it with any web browser.
From the author: We assessed mate fidelity, nest-box fidelity, and breeding dispersal distances of American Kestrels (Falco sparverius) nesting in boxes in southwestern Idaho from 1990 through 2006. Seventy-seven percent of boxes had different males and 87% had different females where nest-box occupants were identified in consecutive years. High turnover rates were partly a result of box-switching. Forty-eight percent of males and 58% of females that nested within the study area in successive years used different boxes. The probability of changing boxes was unrelated to gender, nesting success in the prior year, or years of nesting experience. Breeding dispersal distances for birds that moved to different boxes averaged 2.2 km for males (max = 22 km) and 3.2 km for females (max = 32 km). Approximately 70% of birds that nested in consecutive years on the study area had a different mate in the second year. Mate fidelity was related to box fidelity but not to prior nesting success or years of nesting experience. Mate changes occurred 32% of the time when the previous mate was known to be alive and nesting in the area. Kestrels that switched mates and boxes did not improve or decrease their subsequent nesting success. Kestrels usually switched to mates with less experience and lower lifetime productivity than their previous mates. The costs of switching boxes and mates were low, and there were no obvious benefits to fidelity. The cost of "waiting" for a previous mate that might have died could be high in species with high annual mortality.
Citation Details
Title: Site fidelity, mate fidelity, and breeding dispersal in American Kestrels.(Report)
Author: Karen Steenhof
Publication:The Wilson Journal of Ornithology (Magazine/Journal)
Date: March 1, 2009
Publisher: Wilson Ornithological Society
Volume: 121 Issue: 1 Page: 12(10)
Article Type: Report
Distributed by Gale, a part of Cengage Learning
From the author: We assessed mate fidelity, nest-box fidelity, and breeding dispersal distances of American Kestrels (Falco sparverius) nesting in boxes in southwestern Idaho from 1990 through 2006. Seventy-seven percent of boxes had different males and 87% had different females where nest-box occupants were identified in consecutive years. High turnover rates were partly a result of box-switching. Forty-eight percent of males and 58% of females that nested within the study area in successive years used different boxes. The probability of changing boxes was unrelated to gender, nesting success in the prior year, or years of nesting experience. Breeding dispersal distances for birds that moved to different boxes averaged 2.2 km for males (max = 22 km) and 3.2 km for females (max = 32 km). Approximately 70% of birds that nested in consecutive years on the study area had a different mate in the second year. Mate fidelity was related to box fidelity but not to prior nesting success or years of nesting experience. Mate changes occurred 32% of the time when the previous mate was known to be alive and nesting in the area. Kestrels that switched mates and boxes did not improve or decrease their subsequent nesting success. Kestrels usually switched to mates with less experience and lower lifetime productivity than their previous mates. The costs of switching boxes and mates were low, and there were no obvious benefits to fidelity. The cost of "waiting" for a previous mate that might have died could be high in species with high annual mortality.
Citation Details
Title: Site fidelity, mate fidelity, and breeding dispersal in American Kestrels.(Report)
Author: Karen Steenhof
Publication:The Wilson Journal of Ornithology (Magazine/Journal)
Date: March 1, 2009
Publisher: Wilson Ornithological Society
Volume: 121 Issue: 1 Page: 12(10)
Article Type: Report
Distributed by Gale, a part of Cengage Learning
