Orientation and long-distance migration routes: an attempt to evaluate compass cue limitations and required precision
By computers imulationso f differentf lightr outesf or springm igratingK nots Calidris canutusp, otentialo rientationa'ld angerz ones' werer evealedi n the equatora rea and northo f the Arcticc ircle.A n evaluationo f the availabilityo f directionailn formation duringm igratoryf lightsd em...
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1998
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ftulundlup:oai:lup.lub.lu.se:b928ec4d-e375-4edf-bc1c-4863c60668f4 2023-05-15T15:08:35+02:00 Orientation and long-distance migration routes: an attempt to evaluate compass cue limitations and required precision Sandberg, Roland Holmquist, Björn 1998 https://lup.lub.lu.se/record/1144959 eng eng Wiley-Blackwell https://lup.lub.lu.se/record/1144959 scopus:0032440275 Journal of Avian Biology; 29(4), pp 626-636 (1998) ISSN: 0908-8857 Ecology Probability Theory and Statistics contributiontojournal/article info:eu-repo/semantics/article text 1998 ftulundlup 2023-02-01T23:28:44Z By computers imulationso f differentf lightr outesf or springm igratingK nots Calidris canutusp, otentialo rientationa'ld angerz ones' werer evealedi n the equatora rea and northo f the Arcticc ircle.A n evaluationo f the availabilityo f directionailn formation duringm igratoryf lightsd emonstratedth e potentialh azardso f crossingt hese danger zones. Investigationso f the directionalc onsequenceso f sun compass orientation based upon an internalc lock in phase with local time at the departures ite showed that such a mechanism would entail serious losses in distance and time. A simple compensatingr uleb asedo n the rateo f changei n sun altitudew as foundt o workw ell both at polar latitudes and in the equator area. The magnetic compass will become inoperativec lose to the magnetice quatora nd the poles, thus restrictingth e availability of directional information. Orientation by stellar cues will become impossible during spring and summer at arctic latitudes. Simulations of potential migratory routesa lso enablede xaminationo f the requiredp recisiono f compasss ystemsa nd it was indicatedt hat necessaryo rientationa ccuracyr equiresm ore than one directional selectionp er long-distancef light to ensure survival.I t is concludedt hat computer simulations of flight tracks, based on ringing recoveries, visual observations, radar studies and satellite telemetry may be a powerful tool helping to identify problems which require future experimental attention. Article in Journal/Newspaper Arctic Lund University Publications (LUP) Arctic |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Ecology Probability Theory and Statistics |
spellingShingle |
Ecology Probability Theory and Statistics Sandberg, Roland Holmquist, Björn Orientation and long-distance migration routes: an attempt to evaluate compass cue limitations and required precision |
topic_facet |
Ecology Probability Theory and Statistics |
description |
By computers imulationso f differentf lightr outesf or springm igratingK nots Calidris canutusp, otentialo rientationa'ld angerz ones' werer evealedi n the equatora rea and northo f the Arcticc ircle.A n evaluationo f the availabilityo f directionailn formation duringm igratoryf lightsd emonstratedth e potentialh azardso f crossingt hese danger zones. Investigationso f the directionalc onsequenceso f sun compass orientation based upon an internalc lock in phase with local time at the departures ite showed that such a mechanism would entail serious losses in distance and time. A simple compensatingr uleb asedo n the rateo f changei n sun altitudew as foundt o workw ell both at polar latitudes and in the equator area. The magnetic compass will become inoperativec lose to the magnetice quatora nd the poles, thus restrictingth e availability of directional information. Orientation by stellar cues will become impossible during spring and summer at arctic latitudes. Simulations of potential migratory routesa lso enablede xaminationo f the requiredp recisiono f compasss ystemsa nd it was indicatedt hat necessaryo rientationa ccuracyr equiresm ore than one directional selectionp er long-distancef light to ensure survival.I t is concludedt hat computer simulations of flight tracks, based on ringing recoveries, visual observations, radar studies and satellite telemetry may be a powerful tool helping to identify problems which require future experimental attention. |
format |
Article in Journal/Newspaper |
author |
Sandberg, Roland Holmquist, Björn |
author_facet |
Sandberg, Roland Holmquist, Björn |
author_sort |
Sandberg, Roland |
title |
Orientation and long-distance migration routes: an attempt to evaluate compass cue limitations and required precision |
title_short |
Orientation and long-distance migration routes: an attempt to evaluate compass cue limitations and required precision |
title_full |
Orientation and long-distance migration routes: an attempt to evaluate compass cue limitations and required precision |
title_fullStr |
Orientation and long-distance migration routes: an attempt to evaluate compass cue limitations and required precision |
title_full_unstemmed |
Orientation and long-distance migration routes: an attempt to evaluate compass cue limitations and required precision |
title_sort |
orientation and long-distance migration routes: an attempt to evaluate compass cue limitations and required precision |
publisher |
Wiley-Blackwell |
publishDate |
1998 |
url |
https://lup.lub.lu.se/record/1144959 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Journal of Avian Biology; 29(4), pp 626-636 (1998) ISSN: 0908-8857 |
op_relation |
https://lup.lub.lu.se/record/1144959 scopus:0032440275 |
_version_ |
1766339914027237376 |