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Geographical variation in the timing of breeding and moult in dunlin Calidris alpina on the Palearctic tundra

Holmgren, NMA; Jönsson, Paul and Wennerberg, Liv LU (2001) In Polar Biology 24(5). p.369-377
Abstract
Studies of how organisms are adapted to regional climatic conditions are valuable when predicting the effects of global climatic changes on biota. Here we report on the geographical variation in timing of breeding and moult of an Arctic breeding wader, the dunlin (Calidris alpina). The Palearctic study sites range latitudinally between 68 and 76 degreesN and longitudinally between 46 and 179 degreesE, and encompass a variety of local climates. The sites were visited in sequence from west to east within 1 year, and therefore the data are not affected by confounding interannual variations. The estimated breeding start ranged from 5 to 25 June across populations. Birds at more southern sites were found to breed earlier than those at more... (More)
Studies of how organisms are adapted to regional climatic conditions are valuable when predicting the effects of global climatic changes on biota. Here we report on the geographical variation in timing of breeding and moult of an Arctic breeding wader, the dunlin (Calidris alpina). The Palearctic study sites range latitudinally between 68 and 76 degreesN and longitudinally between 46 and 179 degreesE, and encompass a variety of local climates. The sites were visited in sequence from west to east within 1 year, and therefore the data are not affected by confounding interannual variations. The estimated breeding start ranged from 5 to 25 June across populations. Birds at more southern sites were found to breed earlier than those at more northern breeding sites. Within populations, the breeding start for first clutches spanned a period of 8 days and, when including replacement clutches, 3-4 weeks. No dunlin west of the Taimyr Peninsula were found moulting while incubating at the nest, whereas all dunlin on Taimyr Peninsula and eastwards were in active wing moult while incubating or rearing chicks. The onset of moult in these populations ranged from 23 to 27 June. The consequences of geographical variation of breeding conditions for variation in the annual cycle of this species are discussed. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Polar Biology
volume
24
issue
5
pages
369 - 377
publisher
Springer
external identifiers
  • scopus:0342526736
ISSN
1432-2056
DOI
10.1007/s003000000222
language
English
LU publication?
yes
id
a053d0f0-1ffc-4ee4-b6f0-ee52bf4f5d5e (old id 145804)
date added to LUP
2007-06-26 08:42:08
date last changed
2018-01-07 06:05:48
@article{a053d0f0-1ffc-4ee4-b6f0-ee52bf4f5d5e,
  abstract     = {Studies of how organisms are adapted to regional climatic conditions are valuable when predicting the effects of global climatic changes on biota. Here we report on the geographical variation in timing of breeding and moult of an Arctic breeding wader, the dunlin (Calidris alpina). The Palearctic study sites range latitudinally between 68 and 76 degreesN and longitudinally between 46 and 179 degreesE, and encompass a variety of local climates. The sites were visited in sequence from west to east within 1 year, and therefore the data are not affected by confounding interannual variations. The estimated breeding start ranged from 5 to 25 June across populations. Birds at more southern sites were found to breed earlier than those at more northern breeding sites. Within populations, the breeding start for first clutches spanned a period of 8 days and, when including replacement clutches, 3-4 weeks. No dunlin west of the Taimyr Peninsula were found moulting while incubating at the nest, whereas all dunlin on Taimyr Peninsula and eastwards were in active wing moult while incubating or rearing chicks. The onset of moult in these populations ranged from 23 to 27 June. The consequences of geographical variation of breeding conditions for variation in the annual cycle of this species are discussed.},
  author       = {Holmgren, NMA and Jönsson, Paul and Wennerberg, Liv},
  issn         = {1432-2056},
  language     = {eng},
  number       = {5},
  pages        = {369--377},
  publisher    = {Springer},
  series       = {Polar Biology},
  title        = {Geographical variation in the timing of breeding and moult in dunlin Calidris alpina on the Palearctic tundra},
  url          = {http://dx.doi.org/10.1007/s003000000222},
  volume       = {24},
  year         = {2001},
}