Large‐scale longitudinal climate gradient across the Palearctic region affects passerine feather moult extent [PDF]
Ecography, 2020 Large‐scale spatial gradients of environmental conditions shape organisms, populations and ecosystems. Even though environmental gradients are a key research theme in macro‐ecology and biogeography, the effects of large‐scale, east–west, environmental gradients are largely overlooked compared with north–south gradients.
Yosef Kiat +4 more
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Using digital photography to study moult extent in breeding seabirds
Ostrich, 2021 Scoring moult from live birds in the hand takes time, thereby increasing the handling stress to the birds. We show that digital photography can be used to efficiently study moult extent across multiple feather tracts. We photographed the upper wings of incubating albatrosses and giant petrels to infer which remiges and greater secondary coverts had ...
Alexis Osborne, Peter G. Ryan
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Extent and symmetry of post-juvenile moult as predictors of future performance in Greenfinch Carduelis chloris [PDF]
Journal of Ornithology, 2012 The extent of post-juvenile moult in passerines is highly variable, but the causes and consequences of such variability remain poorly understood. We tested the hypothesis that the extent and symmetry of post-juvenile moult of Greenfinches Carduelis chloris may be used as reliable predictors of their winter/spring body condition.
Piotr Minias, Tomasz Iciek
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Causes and consequences of individual variation in the extent of post-juvenile moult in the blue titCyanistes caeruleus(Passeriformes: Paridae) [PDF]
Biological Journal of the Linnean Society, 2015 Moult, comprising the growth or replacement of feathers in birds, is an energetically demanding process. As a result, in many species, the extent of the post-juvenile moult can vary substantially. However, the reasons underlying this variation remain poorly understood, and the potential life-history consequences of variation in moult extent are even ...
Ross Crates +2 more
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Variation in the Extent of Greater Wing Coverts Moult in Robins (Erithacus rubecula) Migranting in Autumn Through the Polish Baltic Coast [PDF]
RING, 2005 Variation in the Extent of Greater Wing Coverts Moult in Robins (Erithacus rubecula) Migranting in Autumn Through the Polish Baltic Coast Intra-seasonal variation in the number of unmoulted coverts in immature Robins caught during 2001-2003 autumn migrations was studied at two ringing stations (Mierzeja Wiślana and Bukowo-Kopań) located ...
Małgorzata Ginter +2 more
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Variation in the extent of postjuvenile moult in the Great Tit near Lake Ladoga (Russia) [PDF]
Bird Study, 1996 We examined the extent of postjuvenile moult of rectrices, greater coverts, alula and tertials in the Great Tit Parus major during migration and feather replacement near Lake Ladoga. The moult of 16 hand%raised birds was also followed in experimental photoperiodic conditions simulating different hatching dates. The data from caged birds showed that the
T. A. Rymkevich, Julia Bojarinova
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Polar Biology, 2013 Moult entails costs related to the acquisition of energy and nutrients necessary for feather synthesis, as well as the impact of reduced flight performance induced by gaps in the wing plumage. Variation in moult strategies within and between populations may convey valuable information on energetic trade-offs and other responses to differing ...
Paulo Catry +3 more
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Linking Foraging Behaviour and Habitat Preferences During Moult Across Multiple Populations of Red‐Throated Diver [PDF]
Ecology and EvolutionUnderstanding the habitat use of individuals can facilitate methods to measure the degree to which populations will be affected by potential stressors.
James Duckworth +13 more
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Timing and extent of primary moult in breeding Black-legged Kittiwakes Rissa tridactyla at different colonies in the north-east Atlantic [PDF]
Bird StudyTiming of moult of the inner primaries by breeding Black-legged Kittiwakes is very similar among colonies ranging from southern England to northern Norway, but can be much later at very high-latitude colonies, such as at Svalbard, where breeding is delayed by the late spring thaw. Breeding adult Black-legged Kittiwakes almost all replaced the first and
Robert W. Furness, Robert T. Barrett
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