AVIS-IBIS

Birds of Indian Subcontinent

Muscle Membrane Phospholipid Class Composition in White-Throated Sparrows in Relation to Migration

Publication Type:Journal Article
Year of Publication:2011
Authors:Springer, J, Price, ER, Thomas, R, Guglielmo, CG
Journal:The Wilson Journal of Ornithology
Volume:123
Issue:1
Date Published:2011
ISBN Number:1559-4491
Keywords:Emberizidae, Zonotrichia, Zonotrichia albicollis
Abstract:Abstract We document seasonal changes in the ratio of phosphatidylcholine (PC) to phosphatidylethanolamine (PE) in pectoralis muscles of captive and wild White-throated Sparrows (Zonotrichia albicollis). We manipulated day length in captive sparrows to induce ?winter? or ?migratory? condition. The PC/PE ratio in these sparrows was 1.87 ± 0.11 (mean ± SE), and did not vary significantly between treatments. However, the PC/PE ratio was higher in wild adult sparrows in winter (1.90 ± 0.19) than those caught in migration (1.20 ± 0.13 in spring; 1.37 ± 0.14 in fall). No effect of migratory state on PC/PE ratio was found among wild juveniles (1.32 ± 0.09 in fall, 1.18 ± 0.14 in winter). Seasonal changes to PC/PE ratios may be a result of migratory exercise, rather than migratory condition per se.Abstract We document seasonal changes in the ratio of phosphatidylcholine (PC) to phosphatidylethanolamine (PE) in pectoralis muscles of captive and wild White-throated Sparrows (Zonotrichia albicollis). We manipulated day length in captive sparrows to induce ?winter? or ?migratory? condition. The PC/PE ratio in these sparrows was 1.87 ± 0.11 (mean ± SE), and did not vary significantly between treatments. However, the PC/PE ratio was higher in wild adult sparrows in winter (1.90 ± 0.19) than those caught in migration (1.20 ± 0.13 in spring; 1.37 ± 0.14 in fall). No effect of migratory state on PC/PE ratio was found among wild juveniles (1.32 ± 0.09 in fall, 1.18 ± 0.14 in winter). Seasonal changes to PC/PE ratios may be a result of migratory exercise, rather than migratory condition per se.
URL:http://dx.doi.org/10.1676/10-073.1
Short Title:The Wilson Journal of Ornithology
Taxonomic name: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith