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  1. Artikel ; Online: Honey bees possess a polarity-sensitive magnetoreceptor.

    Lambinet, Veronika / Hayden, Michael E / Reid, Chloe / Gries, Gerhard

    Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology

    2017  Band 203, Heft 12, Seite(n) 1029–1036

    Abstract: Honey bees, Apis mellifera, exploit the geomagnetic field for orientation during foraging and for alignment of their combs within hives. We tested the hypothesis that honey bees sense the polarity of magnetic fields. We created an engineered magnetic ... ...

    Abstract Honey bees, Apis mellifera, exploit the geomagnetic field for orientation during foraging and for alignment of their combs within hives. We tested the hypothesis that honey bees sense the polarity of magnetic fields. We created an engineered magnetic anomaly in which the magnetic field generally either converged toward a sugar reward in a watch glass, or away from it. After bees in behavioral field studies had learned to associate this anomaly with a sugar water reward, we subjected them to two experiments performed in random order. In both experiments, we presented bees with two identical sugar water rewards, one of which was randomly marked by a magnetic field anomaly. During the control experiment, the polarity of the magnetic field anomaly was maintained the same as it was during the training session. During the treatment experiment, it was reversed. We predicted that bees would not respond to the altered anomaly if they were sensitive to the polarity of the magnetic field. Our findings that bees continued to respond to the magnetic anomaly when its polarity was in its unaltered state, but did not respond to it when its polarity was reversed, support the hypothesis that honey bees possess a polarity-sensitive magnetoreceptor.
    Mesh-Begriff(e) Animals ; Bees/physiology ; Behavior, Animal/physiology ; Magnetic Fields ; Sensory Receptor Cells/physiology
    Sprache Englisch
    Erscheinungsdatum 2017-12
    Erscheinungsland Germany
    Dokumenttyp Journal Article
    ZDB-ID 120907-3
    ISSN 1432-1351 ; 0302-9824 ; 0373-0859 ; 0340-7594
    ISSN (online) 1432-1351
    ISSN 0302-9824 ; 0373-0859 ; 0340-7594
    DOI 10.1007/s00359-017-1214-4
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel: Honey bees possess a polarity-sensitive magnetoreceptor

    Lambinet, Veronika / Michael E. Hayden / Chloe Reid / Gerhard Gries

    Journal of comparative physiology. 2017 Dec., v. 203, no. 12

    2017  

    Abstract: Honey bees, Apis mellifera, exploit the geomagnetic field for orientation during foraging and for alignment of their combs within hives. We tested the hypothesis that honey bees sense the polarity of magnetic fields. We created an engineered magnetic ... ...

    Abstract Honey bees, Apis mellifera, exploit the geomagnetic field for orientation during foraging and for alignment of their combs within hives. We tested the hypothesis that honey bees sense the polarity of magnetic fields. We created an engineered magnetic anomaly in which the magnetic field generally either converged toward a sugar reward in a watch glass, or away from it. After bees in behavioral field studies had learned to associate this anomaly with a sugar water reward, we subjected them to two experiments performed in random order. In both experiments, we presented bees with two identical sugar water rewards, one of which was randomly marked by a magnetic field anomaly. During the control experiment, the polarity of the magnetic field anomaly was maintained the same as it was during the training session. During the treatment experiment, it was reversed. We predicted that bees would not respond to the altered anomaly if they were sensitive to the polarity of the magnetic field. Our findings that bees continued to respond to the magnetic anomaly when its polarity was in its unaltered state, but did not respond to it when its polarity was reversed, support the hypothesis that honey bees possess a polarity-sensitive magnetoreceptor.
    Schlagwörter Apis mellifera ; foraging ; geophysics ; glass ; honey bees ; magnetic fields ; sugars
    Sprache Englisch
    Erscheinungsverlauf 2017-12
    Umfang p. 1029-1036.
    Erscheinungsort Springer Berlin Heidelberg
    Dokumenttyp Artikel
    ZDB-ID 231244-x
    ISSN 1432-1351 ; 0340-7594
    ISSN (online) 1432-1351
    ISSN 0340-7594
    DOI 10.1007/s00359-017-1214-4
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  3. Artikel ; Online: Linking magnetite in the abdomen of honey bees to a magnetoreceptive function.

    Lambinet, Veronika / Hayden, Michael E / Reigl, Katharina / Gomis, Surath / Gries, Gerhard

    Proceedings. Biological sciences

    2017  Band 284, Heft 1851

    Abstract: Previous studies of magnetoreception in honey bees, ...

    Abstract Previous studies of magnetoreception in honey bees,
    Mesh-Begriff(e) Abdomen ; Animals ; Bees/physiology ; Ferrosoferric Oxide ; Magnetic Fields
    Chemische Substanzen Ferrosoferric Oxide (XM0M87F357)
    Sprache Englisch
    Erscheinungsdatum 2017-03-10
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 209242-6
    ISSN 1471-2954 ; 0080-4649 ; 0962-8452 ; 0950-1193
    ISSN (online) 1471-2954
    ISSN 0080-4649 ; 0962-8452 ; 0950-1193
    DOI 10.1098/rspb.2016.2873
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  4. Artikel: Size does not matter, but features do: Clark's nutcrackers (Nucifraga columbiana) weigh features more heavily than geometry in large and small enclosures

    Lambinet, Veronika / Christiane Wilzeck / Debbie M. Kelly

    Behavioural processes. 2014 Feb., v. 102

    2014  

    Abstract: Two groups of Clark's nutcrackers (Nucifraga columbiana) were trained to locate a hidden goal which was consistently located at one corner of a fully enclosed rectangular environment with distinctive cues available at each corner. One group was trained ... ...

    Abstract Two groups of Clark's nutcrackers (Nucifraga columbiana) were trained to locate a hidden goal which was consistently located at one corner of a fully enclosed rectangular environment with distinctive cues available at each corner. One group was trained in a small enclosure, whereas the second group was trained in a large enclosure. Once the birds were showing accurate search behavior, they were presented with non-reinforced tests in either the same sized environment as training or the novel sized environment, as well as in a square-shaped environment. The birds were able to accurately search at the two geometrically correct corners when the four distinctive features were removed showing that they had encoded geometry. Although accuracy was greater when tested in the same sized environment as during training, accuracy was above chance in both environments. Regardless of the size of training enclosure both groups showed primary control by features along with secondary control by geometry. Furthermore, when the features and geometric cues provided conflicting information as to the goal location, both groups weighed featural cues over geometry, and this was independent of whether the size of the testing environment was maintained or manipulated. These results show that for Clark's nutcrackers the size of the environment had little effect on the weighing of featural and geometric cues. Furthermore, although nutcrackers encoded both features and geometry, when spatial cues provided discrepant information as to the goal location, nutcrackers relied primarily on features.This article is part of a Special Issue entitled: CO3 2013.
    Schlagwörter Corvidae ; animal behavior ; birds ; geometry
    Sprache Englisch
    Erscheinungsverlauf 2014-02
    Umfang p. 3-11.
    Erscheinungsort Elsevier B.V.
    Dokumenttyp Artikel
    ZDB-ID 196999-7
    ISSN 1872-8308 ; 0376-6357
    ISSN (online) 1872-8308
    ISSN 0376-6357
    DOI 10.1016/j.beproc.2013.12.008
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  5. Artikel ; Online: Size does not matter, but features do: Clark's nutcrackers (Nucifraga columbiana) weigh features more heavily than geometry in large and small enclosures.

    Lambinet, Veronika / Wilzeck, Christiane / Kelly, Debbie M

    Behavioural processes

    2014  Band 102, Seite(n) 3–11

    Abstract: Two groups of Clark's nutcrackers (Nucifraga columbiana) were trained to locate a hidden goal which was consistently located at one corner of a fully enclosed rectangular environment with distinctive cues available at each corner. One group was trained ... ...

    Abstract Two groups of Clark's nutcrackers (Nucifraga columbiana) were trained to locate a hidden goal which was consistently located at one corner of a fully enclosed rectangular environment with distinctive cues available at each corner. One group was trained in a small enclosure, whereas the second group was trained in a large enclosure. Once the birds were showing accurate search behavior, they were presented with non-reinforced tests in either the same sized environment as training or the novel sized environment, as well as in a square-shaped environment. The birds were able to accurately search at the two geometrically correct corners when the four distinctive features were removed showing that they had encoded geometry. Although accuracy was greater when tested in the same sized environment as during training, accuracy was above chance in both environments. Regardless of the size of training enclosure both groups showed primary control by features along with secondary control by geometry. Furthermore, when the features and geometric cues provided conflicting information as to the goal location, both groups weighed featural cues over geometry, and this was independent of whether the size of the testing environment was maintained or manipulated. These results show that for Clark's nutcrackers the size of the environment had little effect on the weighing of featural and geometric cues. Furthermore, although nutcrackers encoded both features and geometry, when spatial cues provided discrepant information as to the goal location, nutcrackers relied primarily on features. This article is part of a Special Issue entitled: CO3 2013.
    Mesh-Begriff(e) Animals ; Behavior, Animal/physiology ; Cues ; Environment ; Exploratory Behavior/physiology ; Orientation/physiology ; Passeriformes ; Space Perception/physiology ; Spatial Behavior/physiology
    Sprache Englisch
    Erscheinungsdatum 2014-02
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 196999-7
    ISSN 1872-8308 ; 0376-6357
    ISSN (online) 1872-8308
    ISSN 0376-6357
    DOI 10.1016/j.beproc.2013.12.008
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.A 4104: Hefte anzeigen Standort:
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  6. Artikel ; Online: Does the Earth's magnetic field serve as a reference for alignment of the honeybee Waggle dance?

    Lambinet, Veronika / Hayden, Michael E / Bieri, Marco / Gries, Gerhard

    PloS one

    2014  Band 9, Heft 12, Seite(n) e115665

    Abstract: The honeybee (Apis mellifera) waggle dance, which is performed inside the hive by forager bees, informs hive mates about a potent food source, and recruits them to its location. It consists of a repeated figure-8 pattern: two oppositely directed turns ... ...

    Abstract The honeybee (Apis mellifera) waggle dance, which is performed inside the hive by forager bees, informs hive mates about a potent food source, and recruits them to its location. It consists of a repeated figure-8 pattern: two oppositely directed turns interspersed by a short straight segment, the "waggle run". The waggle run consists of a single stride emphasized by lateral waggling motions of the abdomen. Directional information pointing to a food source relative to the sun's azimuth is encoded in the angle between the waggle run line and a reference line, which is generally thought to be established by gravity. Yet, there is tantalizing evidence that the local (ambient) geomagnetic field (LGMF) could play a role. We tested the effect of the LGMF on the recruitment success of forager bees by placing observation hives inside large Helmholtz coils, and then either reducing the LGMF to 2% or shifting its apparent declination. Neither of these treatments reduced the number of nest mates that waggle dancing forager bees recruited to a feeding station located 200 m north of the hive. These results indicate that the LGMF does not act as the reference for the alignment of waggle-dancing bees.
    Mesh-Begriff(e) Animal Communication ; Animals ; Bees/physiology ; Electromagnetic Fields ; Movement
    Sprache Englisch
    Erscheinungsdatum 2014-12-26
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0115665
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  7. Artikel ; Online: Does the Earth's magnetic field serve as a reference for alignment of the honeybee Waggle dance?

    Veronika Lambinet / Michael E Hayden / Marco Bieri / Gerhard Gries

    PLoS ONE, Vol 9, Iss 12, p e

    2014  Band 115665

    Abstract: The honeybee (Apis mellifera) waggle dance, which is performed inside the hive by forager bees, informs hive mates about a potent food source, and recruits them to its location. It consists of a repeated figure-8 pattern: two oppositely directed turns ... ...

    Abstract The honeybee (Apis mellifera) waggle dance, which is performed inside the hive by forager bees, informs hive mates about a potent food source, and recruits them to its location. It consists of a repeated figure-8 pattern: two oppositely directed turns interspersed by a short straight segment, the "waggle run". The waggle run consists of a single stride emphasized by lateral waggling motions of the abdomen. Directional information pointing to a food source relative to the sun's azimuth is encoded in the angle between the waggle run line and a reference line, which is generally thought to be established by gravity. Yet, there is tantalizing evidence that the local (ambient) geomagnetic field (LGMF) could play a role. We tested the effect of the LGMF on the recruitment success of forager bees by placing observation hives inside large Helmholtz coils, and then either reducing the LGMF to 2% or shifting its apparent declination. Neither of these treatments reduced the number of nest mates that waggle dancing forager bees recruited to a feeding station located 200 m north of the hive. These results indicate that the LGMF does not act as the reference for the alignment of waggle-dancing bees.
    Schlagwörter Medicine ; R ; Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2014-01-01T00:00:00Z
    Verlag Public Library of Science (PLoS)
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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