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Geographical variation in the timing of breeding and moult in dunlin Calidris alpina on the Palearctic tundra
Responsible organisation
2001 (English)In: Polar Biology, Vol. 24, 369-377 p.Article in journal (Refereed) Published
Abstract [en]

Studies of how organisms are adapted to regional climatic conditions are valuable when predicting theeffects of global climatic changes on biota. Here we report on the geographical variation in timing ofbreeding 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 estimatedbreeding 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 dunlinwest of the Taimyr Peninsula were found moulting while incubating at the nest, whereas all dunlin onTaimyr Peninsula and eastwards were in active wing moult while incubating or rearing chicks. Theonset of moult in these populations ranged from 23 to 27 June. The consequences of geographicalvariation of breeding conditions for variation in the annual cycle of this species are discussed.

Place, publisher, year, edition, pages
2001. Vol. 24, 369-377 p.
Keyword [en]
Calidris alpina, waders, SWEDARCTIC 1999, Tundra Northwest 1999, SWEDARCTIC 1994, Tundra Ecology-94, dunlins, Arctic, Siberia, Canada
Research subject
SWEDARCTIC 1999, Tundra nordväst 1999
Identifiers
URN: urn:nbn:se:polar:diva-754OAI: oai:DiVA.org:polar-754DiVA: diva2:568888
Note

Source: Polardok by Swedish Polar Research Secretariat

Available from: 2012-11-15 Created: 2012-11-15 Last updated: 2015-09-29

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf