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Local Recruitment And Natal Dispersal Distances Of American Kestrels, Karen Steenhof, Julie A. Heath
Local Recruitment And Natal Dispersal Distances Of American Kestrels, Karen Steenhof, Julie A. Heath
Biology Faculty Publications and Presentations
Variation in recruitment patterns and dispersal behavior can have important consequences for population viability, genetic structure, and rates of evolutionary change. From 1992 to 2006 we studied a marked population of American Kestrels (Falco sparverius) nesting in boxes in southwestern Idaho to identify factors that affect local recruitment and natal dispersal distances. A low proportion (4%) of locally produced kestrels (n = 2180) returned to nest in study area boxes. Offspring of locally produced individuals were 3.1 times more likely to return than offspring of parents that did not hatch in study area boxes and, independent of …