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Keywords: sun compass
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Journal Articles
J Exp Biol (2020) 223 (12): jeb223800.
Published: 19 June 2020
... in Central Mexico. To find their way on this long journey, they use a sun compass as their main orientation reference but will also adjust their migratory direction with respect to mountain ranges. This indicates that the migratory butterflies also attend to the panorama to guide their travels. Although...
Journal Articles
In collection:
Neuroethology
J Exp Biol (2019) 222 (Suppl_1): jeb186148.
Published: 6 February 2019
... and Wehner, 2007 ) and dung beetles use the cue to roll their balls in straight paths away from conspecific competitors ( Byrne et al., 2003 ). Thus, across diverse insect taxa with varying ecologies, the sun compass is an important component of the general navigational toolkit. A recent study provides...
Journal Articles
In collection:
Neuroethology
J Exp Biol (2019) 222 (Suppl_1): jeb192450.
Published: 6 February 2019
... in dung beetles are placed into the context of the mechanisms of other insects. Scarabaeus Insect Polarized light Navigation Vision Sun compass While monarch butterflies and moths make annual migrations over large distances ( Reppert et al., 2010 ; Warrant et al., 2016 ) and desert...
Journal Articles
In collection:
Neuroethology
J Exp Biol (2018) 221 (9): jeb177550.
Published: 11 May 2018
... fidelity. This may be a general dispersal strategy for animals with no target destination. Navigation Dispersal Sun compass Central complex Insects To travel long distances, both human and animal navigators employ a similar strategy of proportional navigation in which they maintain...
Journal Articles
J Exp Biol (2014) 217 (15): 2643–2649.
Published: 1 August 2014
...Ingo Schiffner; Bettina Siegmund; Roswitha Wiltschko We analysed the tracks of clock-shifted pigeons from six releases to determine how they cope with the conflict between their sun compass and other navigational cues. Time-lag embedding was used to calculate the short-term correlation dimension...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (20): 3767–3771.
Published: 15 October 2013
..., J.R.K. and W.F.T. wrote the paper, and W.F.T. prepared the figure. COMPETING INTERESTS No competing interests declared. 29 1 2013 1 7 2013 © 2013. Published by The Company of Biologists Ltd 2013 orientation sun compass learning panorama The waggle dances...
Journal Articles
J Exp Biol (2013) 216 (11): 2129–2139.
Published: 1 June 2013
...Katelyn M. Dovey; Jordan R. Kemfort; William F. Towne SUMMARY Honeybees have at least three compass mechanisms: a magnetic compass; a celestial or sun compass, based on the daily rotation of the sun and sun-linked skylight patterns; and a backup celestial compass based on a memory of the sun's...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (16): 2814–2819.
Published: 15 August 2012
... identification of the sun and the moon at night. Tested in artificial conditions of illumination at night without the artificial gradient of luminance, the artificial astronomical cue is identified as the moon even when the conditions of illumination allow sun compass orientation during the day. When...
Journal Articles
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J Exp Biol (2009) 212 (6): 797–801.
Published: 15 March 2009
... of different cations to the sea–land directional choice of Talitrus saltator (Crustacea, Amphipoda) by the sun compass orientation mechanism. Results of releases carried out in basic seawater selectively deprived of Ca 2+ , Mg 2+ or K + and containing the same concentration of Na + indicate that only...
Journal Articles
J Exp Biol (2008) 211 (23): 3737–3743.
Published: 1 December 2008
...William F. Towne SUMMARY Many species learn the sun's daily pattern of azimuthal movement (the solar ephemeris function) for use in sun-compass orientation. In honeybees, this learning is accomplished with much innate guidance and yields stubborn,imprinting-like retention of certain aspects...
Journal Articles
J Exp Biol (2008) 211 (23): 3729–3736.
Published: 1 December 2008
... nonetheless recall the sun's compass bearing relative to novel flight routes in their natal landscape. Specifically, we moved a hive from one landscape to a differently oriented twin landscape, and only after transplantation under overcast skies did we move a feeder away from the hive. These bees nonetheless...
Journal Articles
J Exp Biol (2005) 208 (21): 4049–4061.
Published: 1 November 2005
... is stored in an encapsulated cognitive module in which the ephemeris is inextricably linked to the reference landscape in which it was learned. * Author for correspondence (e-mail: towne@kutztown.edu ) 1 9 2005 © The Company of Biologists Limited 2005 2005 bee sun compass landmark...
Journal Articles
J Exp Biol (2005) 208 (3): 469–478.
Published: 1 February 2005
... and some unknown site-dependent features. * Author for correspondence (e-mail: annag@discau.unipi.it ) 11 11 2004 © The Company of Biologists Limited 2005 2005 homing pigeon sun compass anosmia visual landmark orientation Kramer's `map and compass' concepts are useful...
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J Exp Biol (2000) 203 (2): 207–212.
Published: 15 January 2000
... 12 1999 © 2000 by Company of Biologists 2000 navigation pigeon Columba livia sun compass tracking The mechanism by which homing pigeons navigate from an unfamiliar place is now relatively well understood. Pigeons determine their location with respect to home using a ‘map...
Journal Articles
J Exp Biol (1999) 202 (16): 2121–2126.
Published: 15 August 1999
... link the problem with the observation that deflections of initial orientation caused by clock-shift are often smaller than predicted on a pure sun compass basis. We substantiate the hypothesis that consistently reduced deflections and increased angular scatter occur only when pigeons are released...
Journal Articles
J Exp Biol (1998) 201 (24): 3317–3331.
Published: 15 December 1998
... that tropical migrant butterflies must use a time-compensated sun compass to accomplish their journey, but the crucial experimental manipulations to test this hypothesis have not been conducted. This study reports the results of clock-shift experiments performed with two species of migrating butterflies...