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Article
R. S. Rempel, Auteur ; K. A. Hobson, Auteur ; G. Holborn, Auteur ; S. L. Van Wilgenburg, Auteur ; J. Elliott, AuteurOmnidirectional bioacoustic recording systems offer the ability to record forest songbirds in the field by technical staff, and then interpret the recordings later in the laboratory by skilled interpreters. Among several advantages to this appro[...]
Article
T. Szep, Auteur ; K. A. Hobson, Auteur ; J. Vallner, Auteur ; S. E. Piper, Auteur ; B. Kovacs, Auteur ; D. Z. Szabo, Auteur ; A. P. Moller, AuteurAnalyses of stable isotopes and trace elements in feathers may provide important information about location and habitat use during molt, thereby enabling the investigation of migratory connectivity and its ecological consequences in bird species[...]
Article
David N. Bonter, Auteur ; Therese M. Donovan, Auteur ; Elizabeth W. Brooks, Auteur ; K. A. Hobson, AuteurAbstract Assigning conservation priorities to areas used by birds during migration requires information on the relative quality of areas and habitats. The rate at which migratory birds replenish energy reserves during stopover may be used as an [...]
Article
M. Herrera, Auteur ; G. Luis, Auteur ; K. A. Hobson, Auteur ; P. Hernandez, Auteur ; M. Rodriguez, Auteur
Article
E. M. Bayne, Auteur ; K. A. Hobson, AuteurQuail eggs and artificial nests have become a common way of assessing predation risk for nesting passerine birds. However, the technique is biased against small predators that are unable to destroy large, thick-shelled quail eggs but that are ca[...]
Article
D. F. Mazerolle, Auteur ; K. W. Dufour, Auteur ; K. A. Hobson, Auteur ; H. E. den Haan, AuteurMigrant songbirds are vulnerable to changes in climatic conditions on both the breeding and wintering grounds. For North American Neotropical migrants, the El Nino/Southern Oscillation (ENSO), via its effects on global precipitation and temperat[...]
Article
M. G. Forero, Auteur ; G. R. Bortolotti, Auteur ; K. A. Hobson, Auteur ; J. A. Donazar, Auteur ; M. Bertelloti, Auteur ; G. Blanco, Auteur1. Food web interactions in animal communities can be investigated through the measurement of stable isotopes (e.g. delta(15)N, delta(13)C). We used this approach in a community of 14 species of seabirds breeding on the Argentinean Patagonian co[...]
Article
Kristina L. Paxton, Auteur ; Charles Van Riper, Auteur ; Tad C. Theimer, Auteur ; Eben H. Paxton, Auteur ; K. A. Hobson, AuteurAbstract We used stable hydrogen isotopes (δD) to identify the breeding locations of Wilson?s Warbler (Wilsonia pusilla) migrating through five sites spanning a cross-section of the species? southwestern migration route during the springs of 200[...]
Article
E. Yohannes, Auteur ; K. A. Hobson, Auteur ; D. J. Pearson, Auteur ; L. I. Wassenaar, AuteurThe potential use of stable nitrogen (delta(15)N), carbon (delta(13)C) and hydrogen (6D) isotope ratios in feathers of marsh warblers Acrocephalus palustris, river warblers Locustella fluviatilis and whitethroats Syluia communis was evaluated as[...]
Article
C. López-Calderón, Auteur ; K. A. Hobson, Auteur ; A. Marzal, Auteur ; J. Balbontin, Auteur ; M. Reviriego, Auteur ; S. Magallanes, Auteur ; L. García-Longoria, Auteur ; F. de Lope, Auteur ; Anders P. Moller, AuteurUnderstanding connections between breeding, stopover and wintering grounds for long-distance migratory birds can provide important insight into factors influencing demography and the strength of carry-over effects among various periods of the an[...]
