Determinants of spring migration departure decision in a bat
Migratory decisions in birds are closely tied to environmental cues and fat stores, but it remains unknown if the same variables trigger bat migration. To learn more about the rare phenomenon of bat migration, we studied departure decisions of female common noctules (Nyctalus noctula) in southern Ge...
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| Veröffentlicht in: | Biology letters (2005) 2017-09, Vol.13 (9), p.20170395-20170395 |
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| container_title | Biology letters (2005) |
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| creator | Dechmann, Dina K. N. Wikelski, M. Ellis-Soto, D. Safi, K. O'Mara, M. Teague |
| description | Migratory decisions in birds are closely tied to environmental cues and fat stores, but it remains unknown if the same variables trigger bat migration. To learn more about the rare phenomenon of bat migration, we studied departure decisions of female common noctules (Nyctalus noctula) in southern Germany. We did not find the fattening period that modulates departure decisions in birds. Female noctules departed after a regular evening foraging session, uniformly heading northeast. As the day of year increased, migratory decisions were based on the interactions among wind speed, wind direction and air pressure. As the migration season progressed, bats were likely to migrate on nights with higher air pressure and faster tail winds in the direction of travel, and also show high probability of migration on low-pressure nights with slow head winds. Common noctules thus monitor complex environmental conditions to find the optimal migration night. |
| doi_str_mv | 10.1098/rsbl.2017.0395 |
| format | Article |
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As the migration season progressed, bats were likely to migrate on nights with higher air pressure and faster tail winds in the direction of travel, and also show high probability of migration on low-pressure nights with slow head winds. 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Common noctules thus monitor complex environmental conditions to find the optimal migration night.</description><subject>Animal Behaviour</subject><subject>Animal Migration</subject><subject>Animals</subject><subject>Bats</subject><subject>Birds</subject><subject>Chiroptera</subject><subject>Cues</subject><subject>Decisions</subject><subject>Environmental conditions</subject><subject>Female</subject><subject>Germany</subject><subject>Migration Onset</subject><subject>Migratory birds</subject><subject>Pressure</subject><subject>Pressure head</subject><subject>Seasons</subject><subject>Wind</subject><subject>Wind direction</subject><subject>Wind speed</subject><issn>1744-9561</issn><issn>1744-957X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kd1rFDEUxUNR2lr72kcZ8MWXXXOTyWQCImj9hAVBK_gWkkxmTZlJtkmmsP71Zth2bSv6lEvyyz3ncBA6A7wELNqXMelhSTDwJaaCHaBj4HW9EIz_eLSfGzhCT1K6xJhyjtkhOiKtoMApPkav3tls4-i88jlVoa_SJjq_rka3jiq74KvOblTMU7RlMi7NV85XqtIqP0WPezUke3pznqDvH95fnH9arL58_Hz-ZrUwjNV5QduaCywIYxoagmtDWq67XpvaYNNCB9AAZrzjDeaM1o0gWCitTE-0sFoQeoJe7_ZuJj3azlifoxpkcTqquJVBOXn_xbufch2uJWsILznLghc3C2K4mmzKcnTJ2GFQ3oYpSRA10AKzpqDPH6CXYYq-xCtUC63ghLBCLXeUiSGlaPu9GcByLkbOxci5GDkXUz48uxthj982UQCzA2LYFrFgnM3bP9pfv71dXQN1QuKWAuZACJe_3GanA1S6lCYrxQPdv23Q_6n8w_xvabW7hg</recordid><startdate>20170901</startdate><enddate>20170901</enddate><creator>Dechmann, Dina K. 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N.</creatorcontrib><creatorcontrib>Wikelski, M.</creatorcontrib><creatorcontrib>Ellis-Soto, D.</creatorcontrib><creatorcontrib>Safi, K.</creatorcontrib><creatorcontrib>O'Mara, M. Teague</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environmental Sciences and Pollution Management</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Biology letters (2005)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dechmann, Dina K. 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| subjects | Animal Behaviour Animal Migration Animals Bats Birds Chiroptera Cues Decisions Environmental conditions Female Germany Migration Onset Migratory birds Pressure Pressure head Seasons Wind Wind direction Wind speed |
| title | Determinants of spring migration departure decision in a bat |
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