Orientation of shorebirds in relation to wind: both drift and compensation in the same region

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Grönroos, JohannaLund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Evolutionary ecology,Department of Biology,Faculty of Science,Man and Biosphere Health (MABH) (author)

Orientation of shorebirds in relation to wind: both drift and compensation in the same region

Article/chapterEnglish2013

Publisher, publication year, extent ...

2012-10-14
Springer Science and Business Media LLC,2013

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LIBRIS-ID:oai:lup.lub.lu.se:78dc3ffb-b2ce-401a-a61a-b602f823ebd8
https://lup.lub.lu.se/record/4062578URI
https://doi.org/10.1007/s10336-012-0902-7DOI
oai:researchportal.hkr.se/admin:publications/c2b39ae5-3712-4329-bb33-fcf2fbd43bc9URI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype
Subject category:ref swepub-contenttype

Notes

Migratory movements in air or water are strongly affected by wind and ocean currents and an animal which does not compensate for lateral flow will be drifted from its intended direction of movement. We investigated whether arctic shorebirds during autumn migration in the region of South Sweden and the southern Baltic Sea compensate for wind drift or allow themselves to be drifted when approaching a known goal area under different circumstances (over sea, over land, at low and high altitude) using two different approaches, visual telescope observations and tracking radar. The shorebirds showed clearly different responses to crosswinds along this short section (<200 km) of the migratory journey, from almost full drift when departing over the sea, followed by partial drift and almost full compensation at higher altitudes over land during later stages. Our study demonstrates that shorebirds are also remarkably variable in their response to crosswinds during short sections of their migratory journey. The recorded initial drift close to departure is probably not adaptive but rather a result of constraints in the capacity of the birds to compensate in some situations, e. g. in low-altitude climbing flight over the sea. We found no difference in orientation response to wind between adult and juvenile birds. This study indicates, in addition to adaptive orientation responses to wind, the importance of the non-adaptive wind drift that contributes to increasing the variability of drift/compensation behaviour between places that are separated by only short distances, depending on the local topographic and environmental conditions.

Subject headings and genre

NATURVETENSKAP Biologi Ekologi hsv//swe
NATURAL SCIENCES Biological Sciences Ecology hsv//eng
NATURVETENSKAP Biologi hsv//swe
NATURAL SCIENCES Biological Sciences hsv//eng
Migration
Orientation
Wind drift
Compensation
Shorebird

Added entries (persons, corporate bodies, meetings, titles ...)

Green, MartinLund University,Lunds universitet,Biodiversitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Biodiversity,Department of Biology,Faculty of Science(Swepub:lu)ekol-mgn (author)
Alerstam, ThomasLund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Evolutionary ecology,Department of Biology,Faculty of Science(Swepub:lu)zooe-tal (author)
Evolutionär ekologiBiologiska institutionen (creator_code:org_t)

Related titles

In:Journal of Ornithology: Springer Science and Business Media LLC154:2, s. 385-3922193-72062193-7192

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http://dx.doi.org/10.1007/s10336-012-0902-7FULLTEXT
https://lup.lub.lu.se/record/4062578
https://doi.org/10.1007/s10336-012-0902-7
oai:researchportal.hkr.se/admin:publications/c2b39ae5-3712-4329-bb33-fcf2fbd43bc9

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By the author/editor: Grönroos, Johann ...; Green, Martin; Alerstam, Thomas

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NATURAL SCIENCES: NATURAL SCIENCES; and Biological Scien ...; and Ecology

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By the university: Lund University; Kristianstad University College

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