Download the full-sized PDF
This file is in the following communities:
|Department of Biological Sciences|
This file is in the following collections:
|Journal Articles (Biological Sciences)|
Using isotopic variance to detect long-distance dispersal and philopatry in birds: An example with Ovenbirds and American redstarts Open Access
- Author or creator
- Additional contributors
- Type of item
- Journal Article (Published)
Understanding movement so f individualb irdsb etweenb reedings ites (breeding dispersal) or between natal sites and the site of first breeding (natal dispersal) is crucial to the modelingo f populationd ynamics.U nfortunatelyt,h ese aspectso f demographya rep oorly understoodf or avian species in general, and for migratorys ongbirdsi n particularT. his is because it is often impossible to sample broadly enough to relocate marked birds that have moved. We used stable-hydrogen(8 D) and carbon( 613C)is otope analyseso f the featherso f 139 American Redstarts (Setophaga ruticilla) and 193 Ovenbirds (Seiurus aurocapillus) to evaluate evidence for individuals molting feathers at locations other than their breeding sites from the previous year. We sampled outer rectrices from breeding populations at three extensive boreal forest sites (Prince Albert National Park and Duck Mountain, Saskatchewan, and Lac La Biche, Alberta) and at three isolated forest tracts (Cypress Hills, and Moose Mountain, Saskatchewan, and Turtle Mountain, Manitoba) in western Canada. Based on outliera nalysiso f 6D measurementsw, e found evidence for long-distanced ispersalr anging from 0-29% of individuals. For both species, second-year birds had higher variance in 6D values suggestingt hey had a higher probabilityo f originatingf rom elsewherec omparedt o after-second-yeabr irds.
- Date created
- License information
- © The Cooper Ornithological Society...
- Citation for previous publication
KA Hobson, LI Wassenaar and EM Bayne. "Using isotopic variance to detect long-distance dispersal and philopatry in birds: An example with Ovenbirds and American redstarts." Condor 106 (2004): 732-743.
- Link to related item
- Date Uploaded
- Date Modified
- Audit Status
- Audits have not yet been run on this file.
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 417060
Last modified: 2015:10:12 20:39:12-06:00
Original checksum: 3b0bf466f458d3324e089cd56473abd8
Well formed: true
Status message: Outlines contain recursive references.
File title: Article Contents
File title: Using Isotopic Variance to Detect Long-Distance Dispersal and Philopatry in Birds: An Example with Overbirds and American Redstarts
Page count: 12
File language: en