Gravity anomalies without geomagnetic disturbances interfere with pigeon homing--a GPS tracking study
The gravity vector theory postulates that birds determine their position to set a home course by comparing the memorized gravity vector at the home loft with the local gravity vector at the release site, and that they should adjust their flight course to the gravity anomalies encountered. As gravity...
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| Veröffentlicht in: | Journal of experimental biology 2014-11, Vol.217 (Pt 22), p.4057-4067 |
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| container_end_page | 4067 |
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| container_issue | Pt 22 |
| container_start_page | 4057 |
| container_title | Journal of experimental biology |
| container_volume | 217 |
| creator | Blaser, Nicole Guskov, Sergei I Entin, Vladimir A Wolfer, David P Kanevskyi, Valeryi A Lipp, Hans-Peter |
| description | The gravity vector theory postulates that birds determine their position to set a home course by comparing the memorized gravity vector at the home loft with the local gravity vector at the release site, and that they should adjust their flight course to the gravity anomalies encountered. As gravity anomalies are often intermingled with geomagnetic anomalies, we released experienced pigeons from the center of a strong circular gravity anomaly (25 km diameter) not associated with magnetic anomalies and from a geophysical control site, equidistant from the home loft (91 km). After crossing the border zone of the anomaly--expected to be most critical for pigeon navigation--they dispersed significantly more than control birds, except for those having met a gravity anomaly en route. These data increase the credibility of the gravity vector hypothesis. |
| doi_str_mv | 10.1242/jeb.108670 |
| format | Article |
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As gravity anomalies are often intermingled with geomagnetic anomalies, we released experienced pigeons from the center of a strong circular gravity anomaly (25 km diameter) not associated with magnetic anomalies and from a geophysical control site, equidistant from the home loft (91 km). After crossing the border zone of the anomaly--expected to be most critical for pigeon navigation--they dispersed significantly more than control birds, except for those having met a gravity anomaly en route. 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As gravity anomalies are often intermingled with geomagnetic anomalies, we released experienced pigeons from the center of a strong circular gravity anomaly (25 km diameter) not associated with magnetic anomalies and from a geophysical control site, equidistant from the home loft (91 km). After crossing the border zone of the anomaly--expected to be most critical for pigeon navigation--they dispersed significantly more than control birds, except for those having met a gravity anomaly en route. These data increase the credibility of the gravity vector hypothesis.</description><subject>Animals</subject><subject>Columbidae - physiology</subject><subject>Female</subject><subject>Flight, Animal</subject><subject>Geographic Information Systems - instrumentation</subject><subject>Gravitation</subject><subject>Homing Behavior - physiology</subject><subject>Male</subject><subject>Orientation</subject><subject>Ukraine</subject><issn>0022-0949</issn><issn>1477-9145</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kN1KAzEQhYMotlZvfADJpQhbk2yyP5dStAoFBfV6ySazbeputiZZpW9vaqsDh2GGbw7MQeiSkillnN2uoZ5SUmQ5OUJjyvM8KSkXx2hMCGMJKXk5Qmfer0msTPBTNGIiLRnP6BjB3MkvE7ZY2r6TrQGPv01Y9UPAS4ibpYVgFNbGh8HV0qoIGBvANeDgF8UbE0mLV31n7DJJJJ6_vOLgpPqIM453enuOThrZerg49Al6f7h_mz0mi-f50-xukaiUpSERlOuoFEpoQDZZkWkNpM4LrVQji6aklGgmWZqrnLFciCithKjreMUKmk7Q9d534_rPAXyoOuMVtK200A--oln8nNOM7NCbPapc772Dpto400m3rSipdrFWMdZqH2uErw6-Q92B_kf_ckx_AEt3dBU</recordid><startdate>20141115</startdate><enddate>20141115</enddate><creator>Blaser, Nicole</creator><creator>Guskov, Sergei I</creator><creator>Entin, Vladimir A</creator><creator>Wolfer, David P</creator><creator>Kanevskyi, Valeryi A</creator><creator>Lipp, Hans-Peter</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20141115</creationdate><title>Gravity anomalies without geomagnetic disturbances interfere with pigeon homing--a GPS tracking study</title><author>Blaser, Nicole ; Guskov, Sergei I ; Entin, Vladimir A ; Wolfer, David P ; Kanevskyi, Valeryi A ; Lipp, Hans-Peter</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c323t-514d5143e9efeaf686dde0b78dccfa8f9110d2a237c722755275dc55bb5142813</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Animals</topic><topic>Columbidae - physiology</topic><topic>Female</topic><topic>Flight, Animal</topic><topic>Geographic Information Systems - instrumentation</topic><topic>Gravitation</topic><topic>Homing Behavior - physiology</topic><topic>Male</topic><topic>Orientation</topic><topic>Ukraine</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Blaser, Nicole</creatorcontrib><creatorcontrib>Guskov, Sergei I</creatorcontrib><creatorcontrib>Entin, Vladimir A</creatorcontrib><creatorcontrib>Wolfer, David P</creatorcontrib><creatorcontrib>Kanevskyi, Valeryi A</creatorcontrib><creatorcontrib>Lipp, Hans-Peter</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of experimental biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Blaser, Nicole</au><au>Guskov, Sergei I</au><au>Entin, Vladimir A</au><au>Wolfer, David P</au><au>Kanevskyi, Valeryi A</au><au>Lipp, Hans-Peter</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Gravity anomalies without geomagnetic disturbances interfere with pigeon homing--a GPS tracking study</atitle><jtitle>Journal of experimental biology</jtitle><addtitle>J Exp Biol</addtitle><date>2014-11-15</date><risdate>2014</risdate><volume>217</volume><issue>Pt 22</issue><spage>4057</spage><epage>4067</epage><pages>4057-4067</pages><issn>0022-0949</issn><eissn>1477-9145</eissn><abstract>The gravity vector theory postulates that birds determine their position to set a home course by comparing the memorized gravity vector at the home loft with the local gravity vector at the release site, and that they should adjust their flight course to the gravity anomalies encountered. 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| ispartof | Journal of experimental biology, 2014-11, Vol.217 (Pt 22), p.4057-4067 |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection; Company of Biologists |
| subjects | Animals Columbidae - physiology Female Flight, Animal Geographic Information Systems - instrumentation Gravitation Homing Behavior - physiology Male Orientation Ukraine |
| title | Gravity anomalies without geomagnetic disturbances interfere with pigeon homing--a GPS tracking study |
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