Simulation experiment to test strategies of geomagnetic navigation during long-distance bird migration

Lade...
Vorschaubild
Dateien
Zein_2-avpnfecibsg7.pdf
Zein_2-avpnfecibsg7.pdfGröße: 3.77 MBDownloads: 186
Datum
2021
Autor:innen
Zein, Beate
Long, Jed A.
Kruckenberg, Helmut
Demšar, Urška
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
ArXiv-ID
Internationale Patentnummer
Link zur Lizenz
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Open Access Gold
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Movement Ecology. BioMed Central. 2021, 9(1), 46. eISSN 2051-3933. Available under: doi: 10.1186/s40462-021-00283-5
Zusammenfassung

Background
Different theories suggest birds may use compass or map navigational systems associated with Earth's magnetic intensity or inclination, especially during migratory flights. These theories have only been tested by considering properties of the Earth's magnetic field at coarse temporal scales, typically ignoring the temporal dynamics of geomagnetic values that may affect migratory navigational capacity.

Methods
We designed a simulation experiment to study if and how birds use the geomagnetic field during migration by using both high resolution GPS tracking data and geomagnetic data at relatively fine spatial and temporal resolutions in comparison to previous studies. Our simulations use correlated random walks (CRW) and correlated random bridge (CRB) models to model different navigational strategies based on underlying dynamic geomagnetic data. We translated navigational strategies associated with geomagnetic cues into probability surfaces that are included in the random walk models. Simulated trajectories from these models were compared to the actual GPS trajectories of migratory birds using 3 different similarity measurements to evaluate which of the strategies was most likely to have occurred.

Results and conclusion
We designed a simulation experiment which can be applied to different wildlife species under varying conditions worldwide. In the case of our example species, we found that a compass-type strategy based on taxis, defined as movement towards an extreme value, produced the closest and most similar trajectories when compared to original GPS tracking data in CRW models. Our results indicate less evidence for map navigation (constant heading and bi-gradient taxis navigation). Additionally, our results indicate a multifactorial navigational mechanism necessitating more than one cue for successful navigation to the target. This is apparent from our simulations because the modelled endpoints of the trajectories of the CRW models do not reach close proximity to the target location of the GPS trajectory when simulated with geomagnetic navigational strategies alone. Additionally, the magnitude of the effect of the geomagnetic cues during navigation in our models was low in our CRB models. More research on the scale effects of the geomagnetic field on navigation, along with temporally varying geomagnetic data could be useful for further improving future models.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
Bird migration, Earth’s magnetic field, Geomagnetic navigation, Greater white-fronted geese, Method development, Navigational strategies, Random walk models
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690ZEIN, Beate, Jed A. LONG, Kamran SAFI, Andrea KÖLZSCH, Martin WIKELSKI, Helmut KRUCKENBERG, Urška DEMŠAR, 2021. Simulation experiment to test strategies of geomagnetic navigation during long-distance bird migration. In: Movement Ecology. BioMed Central. 2021, 9(1), 46. eISSN 2051-3933. Available under: doi: 10.1186/s40462-021-00283-5
BibTex
@article{Zein2021-09-15Simul-54991,
  year={2021},
  doi={10.1186/s40462-021-00283-5},
  title={Simulation experiment to test strategies of geomagnetic navigation during long-distance bird migration},
  number={1},
  volume={9},
  journal={Movement Ecology},
  author={Zein, Beate and Long, Jed A. and Safi, Kamran and Kölzsch, Andrea and Wikelski, Martin and Kruckenberg, Helmut and Demšar, Urška},
  note={Article Number: 46}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/54991">
    <dc:creator>Wikelski, Martin</dc:creator>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/54991"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dc:creator>Zein, Beate</dc:creator>
    <dc:contributor>Demšar, Urška</dc:contributor>
    <dc:contributor>Kölzsch, Andrea</dc:contributor>
    <dc:creator>Demšar, Urška</dc:creator>
    <dc:rights>Attribution 4.0 International</dc:rights>
    <dcterms:issued>2021-09-15</dcterms:issued>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-09-23T12:34:36Z</dcterms:available>
    <dc:contributor>Wikelski, Martin</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-09-23T12:34:36Z</dc:date>
    <dc:creator>Long, Jed A.</dc:creator>
    <dc:contributor>Safi, Kamran</dc:contributor>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:contributor>Kruckenberg, Helmut</dc:contributor>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by/4.0/"/>
    <dcterms:abstract xml:lang="eng">Background&lt;br /&gt;Different theories suggest birds may use compass or map navigational systems associated with Earth's magnetic intensity or inclination, especially during migratory flights. These theories have only been tested by considering properties of the Earth's magnetic field at coarse temporal scales, typically ignoring the temporal dynamics of geomagnetic values that may affect migratory navigational capacity.&lt;br /&gt;&lt;br /&gt;Methods&lt;br /&gt;We designed a simulation experiment to study if and how birds use the geomagnetic field during migration by using both high resolution GPS tracking data and geomagnetic data at relatively fine spatial and temporal resolutions in comparison to previous studies. Our simulations use correlated random walks (CRW) and correlated random bridge (CRB) models to model different navigational strategies based on underlying dynamic geomagnetic data. We translated navigational strategies associated with geomagnetic cues into probability surfaces that are included in the random walk models. Simulated trajectories from these models were compared to the actual GPS trajectories of migratory birds using 3 different similarity measurements to evaluate which of the strategies was most likely to have occurred.&lt;br /&gt;&lt;br /&gt;Results and conclusion&lt;br /&gt;We designed a simulation experiment which can be applied to different wildlife species under varying conditions worldwide. In the case of our example species, we found that a compass-type strategy based on taxis, defined as movement towards an extreme value, produced the closest and most similar trajectories when compared to original GPS tracking data in CRW models. Our results indicate less evidence for map navigation (constant heading and bi-gradient taxis navigation). Additionally, our results indicate a multifactorial navigational mechanism necessitating more than one cue for successful navigation to the target. This is apparent from our simulations because the modelled endpoints of the trajectories of the CRW models do not reach close proximity to the target location of the GPS trajectory when simulated with geomagnetic navigational strategies alone. Additionally, the magnitude of the effect of the geomagnetic cues during navigation in our models was low in our CRB models. More research on the scale effects of the geomagnetic field on navigation, along with temporally varying geomagnetic data could be useful for further improving future models.</dcterms:abstract>
    <dc:creator>Kruckenberg, Helmut</dc:creator>
    <dc:contributor>Zein, Beate</dc:contributor>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/54991/1/Zein_2-avpnfecibsg7.pdf"/>
    <dc:language>eng</dc:language>
    <dcterms:title>Simulation experiment to test strategies of geomagnetic navigation during long-distance bird migration</dcterms:title>
    <dc:creator>Safi, Kamran</dc:creator>
    <dc:contributor>Long, Jed A.</dc:contributor>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/54991/1/Zein_2-avpnfecibsg7.pdf"/>
    <dc:creator>Kölzsch, Andrea</dc:creator>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
Begutachtet
Ja
Diese Publikation teilen