Data from: Ecology of tern flight in relation to wind, topography and aerodynamic theory
Flight is an economic mode of locomotion, because it is both fast and relatively cheap per unit of distance, enabling birds to migrate long distances and obtain food over large areas. The power required to fly follows a U-shaped function in relation to airspeed, from which context dependent ‘optimal...
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Online Access: | https://doi.org/10.5061/dryad.hj13q |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::912557aff0a73b7852ddfbd617352e32 2023-05-15T15:09:33+02:00 Data from: Ecology of tern flight in relation to wind, topography and aerodynamic theory Hedenström, Anders Åkesson, Susanne 2017-01-01 https://doi.org/10.5061/dryad.hj13q undefined unknown http://dx.doi.org/10.5061/dryad.hj13q https://dx.doi.org/10.5061/dryad.hj13q lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:94809 10.5061/dryad.hj13q oai:easy.dans.knaw.nl:easy-dataset:94809 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Life sciences medicine and health care Hydroprogne caspia flight mechanics wind compensation Migration Sterna paradisaea Sterna sandvicensis flight speed airspeed Sterna albifrons Sterna hirundo Baltic Sea envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2017 fttriple https://doi.org/10.5061/dryad.hj13q https://doi.org/10.5061/DRYAD.HJ13Q 2023-01-22T16:51:58Z Flight is an economic mode of locomotion, because it is both fast and relatively cheap per unit of distance, enabling birds to migrate long distances and obtain food over large areas. The power required to fly follows a U-shaped function in relation to airspeed, from which context dependent ‘optimal’ flight speeds can be derived. Crosswinds will displace birds away from their intended track unless they make compensatory adjustments of heading and airspeed.We report on flight track measurements in five geometrically similar tern species ranging one magnitude in body mass, from both migration and the breeding season at the island of O ¨ land in the Baltic Sea. When leaving the southern point of O ¨ land, migrating Arctic and common terns made a 608 shift in track direction, probably guided by a distant landmark. Terns adjusted both airspeed and heading in relation to tail and sidewind, where coastlines facilitated compensation. Airspeed also depended on ecological context (searching versus not searching for food), and it increased with flock size. Species-specific maximum range speed agreed with predicted speeds from a new aerodynamic theory. Our study shows that the selection of airspeed is a behavioural trait that depended on a complex blend of internal and external factors. Tern flight dataData on flight speed measurements of five species of terns. Dataset Arctic Sterna hirundo Sterna paradisaea Unknown Arctic Southern Point ENVELOPE(-55.748,-55.748,52.633,52.633) |
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topic |
Life sciences medicine and health care Hydroprogne caspia flight mechanics wind compensation Migration Sterna paradisaea Sterna sandvicensis flight speed airspeed Sterna albifrons Sterna hirundo Baltic Sea envir geo |
spellingShingle |
Life sciences medicine and health care Hydroprogne caspia flight mechanics wind compensation Migration Sterna paradisaea Sterna sandvicensis flight speed airspeed Sterna albifrons Sterna hirundo Baltic Sea envir geo Hedenström, Anders Åkesson, Susanne Data from: Ecology of tern flight in relation to wind, topography and aerodynamic theory |
topic_facet |
Life sciences medicine and health care Hydroprogne caspia flight mechanics wind compensation Migration Sterna paradisaea Sterna sandvicensis flight speed airspeed Sterna albifrons Sterna hirundo Baltic Sea envir geo |
description |
Flight is an economic mode of locomotion, because it is both fast and relatively cheap per unit of distance, enabling birds to migrate long distances and obtain food over large areas. The power required to fly follows a U-shaped function in relation to airspeed, from which context dependent ‘optimal’ flight speeds can be derived. Crosswinds will displace birds away from their intended track unless they make compensatory adjustments of heading and airspeed.We report on flight track measurements in five geometrically similar tern species ranging one magnitude in body mass, from both migration and the breeding season at the island of O ¨ land in the Baltic Sea. When leaving the southern point of O ¨ land, migrating Arctic and common terns made a 608 shift in track direction, probably guided by a distant landmark. Terns adjusted both airspeed and heading in relation to tail and sidewind, where coastlines facilitated compensation. Airspeed also depended on ecological context (searching versus not searching for food), and it increased with flock size. Species-specific maximum range speed agreed with predicted speeds from a new aerodynamic theory. Our study shows that the selection of airspeed is a behavioural trait that depended on a complex blend of internal and external factors. Tern flight dataData on flight speed measurements of five species of terns. |
format |
Dataset |
author |
Hedenström, Anders Åkesson, Susanne |
author_facet |
Hedenström, Anders Åkesson, Susanne |
author_sort |
Hedenström, Anders |
title |
Data from: Ecology of tern flight in relation to wind, topography and aerodynamic theory |
title_short |
Data from: Ecology of tern flight in relation to wind, topography and aerodynamic theory |
title_full |
Data from: Ecology of tern flight in relation to wind, topography and aerodynamic theory |
title_fullStr |
Data from: Ecology of tern flight in relation to wind, topography and aerodynamic theory |
title_full_unstemmed |
Data from: Ecology of tern flight in relation to wind, topography and aerodynamic theory |
title_sort |
data from: ecology of tern flight in relation to wind, topography and aerodynamic theory |
publishDate |
2017 |
url |
https://doi.org/10.5061/dryad.hj13q |
long_lat |
ENVELOPE(-55.748,-55.748,52.633,52.633) |
geographic |
Arctic Southern Point |
geographic_facet |
Arctic Southern Point |
genre |
Arctic Sterna hirundo Sterna paradisaea |
genre_facet |
Arctic Sterna hirundo Sterna paradisaea |
op_source |
oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:94809 10.5061/dryad.hj13q oai:easy.dans.knaw.nl:easy-dataset:94809 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
http://dx.doi.org/10.5061/dryad.hj13q https://dx.doi.org/10.5061/dryad.hj13q |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.hj13q https://doi.org/10.5061/DRYAD.HJ13Q |
_version_ |
1766340725431074816 |