AVIS-IBIS

Birds of Indian Subcontinent

Wintering survival of insect-eating passerines in southern Europe

Publication Type:Journal Article
Year of Publication:2011
Authors:Arizaga, J, Díez, E, Aranguren, I, Asenjo, I, Cuadrado, JF, Elosegi, Z, Goikoetxea, J, Herrero, A, Jauregi, JI, Mendiburu, A, Sánchez, JM
Journal:Bird Study
Volume:59
Date Published:2011
ISBN Number:0006-3657
Keywords:Erithacus, Erithacus rubecula, Europe, Muscicapidae, Phylloscopidae, Phylloscopus, Phylloscopus collybita, Phylloscopus collybitus, Prunella, Prunella modularis, Prunellidae, Regulidae, Regulus, Regulus ignicapilla, Regulus ignicapillus, Southern Europe
Abstract:Capsule Intra-year survival during the winter is high for some insect-eating passerines in northern Iberia. Aims To estimate intra-year survival of insect-eating passerines wintering in northern Iberia. Methods Capture?recapture data from four passerines (European Robins Erithacus rubecula; Common Chiffchaffs Phylloscopus collybita; Firecrests Regulus ignicapillus; and Dunnocks Prunella modularis) captured during four consecutive winters were analyzed using Cormack?Jolly?Seber models. Results Intra-year survival during the winter differed between species, possibly revealing different survival or wintering strategies. Thus, Dunnocks and Firecrests showed survival rates close to 1, whereas Chiffchaffs and Robins had lower survival rates (0.4 and 0.3?0.6, respectively). Transients were detected only in Dunnocks (60%). This strategy in which some birds are resident and others are vagrant is already known for other species, particularly those that feed on plants or change to a more vegetarian diet during the winter. Conclusions Northern Iberia, and particularly its coast, is a good wintering area for several insect-eating species.Capsule Intra-year survival during the winter is high for some insect-eating passerines in northern Iberia. Aims To estimate intra-year survival of insect-eating passerines wintering in northern Iberia. Methods Capture?recapture data from four passerines (European Robins Erithacus rubecula; Common Chiffchaffs Phylloscopus collybita; Firecrests Regulus ignicapillus; and Dunnocks Prunella modularis) captured during four consecutive winters were analyzed using Cormack?Jolly?Seber models. Results Intra-year survival during the winter differed between species, possibly revealing different survival or wintering strategies. Thus, Dunnocks and Firecrests showed survival rates close to 1, whereas Chiffchaffs and Robins had lower survival rates (0.4 and 0.3?0.6, respectively). Transients were detected only in Dunnocks (60%). This strategy in which some birds are resident and others are vagrant is already known for other species, particularly those that feed on plants or change to a more vegetarian diet during the winter. Conclusions Northern Iberia, and particularly its coast, is a good wintering area for several insect-eating species.
URL:http://dx.doi.org/10.1080/00063657.2011.623765
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith