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style="margin: 0; padding: 0; font-family: monospace">The next
instalment of "Brains in Space" takes place on Tuesday <b>June
17th</b> at <b>4 pm</b> (CEST) when Dr James McLaren,
University of Oldenburg, presents:</div>
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align="center"><b>Inaugural songbird migration: Inherited
headings, cue extrapolation or innate map-like sense?</b></div>
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style="margin: 0; padding: 0; font-family: monospace" align="left">Most
studies suggest that first-time (inaugural) songbird migrants
reach remote non-breeding grounds by following inherited compass
headings, using sun, star or geomagnetic cues. Several
translocation studies suggest inaugural route-corrections,
challenging this clock-and-compass paradigm, although with highly
variable local orientations or trajectories. I here present
results from a radio-telemetry experiment of inaugural songbird
migrants translocated 2200 km westward across a strong magnetic
gradient in Canada. All remotely-detected translocated birds (n =
36) promptly and consistently route-corrected, suggestive of
early-learned map use. However, route-correction varied with natal
origin, more suggestive of either switching between or
extrapolating among (inherited) headings, contingent upon magnetic
signatures. These results definitively reveal abilities beyond
clock-and-compass among inaugural migrants, yet also support the
primacy of compass headings. I discuss how evolution of such
abilities likely depends on spatial magnetic gradients, with
consequences for population-level migratory responses to
large-scale environmental changes.<b><br>
</b></div>
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<br>
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<div class="pre"
style="margin: 0; padding: 0; font-family: monospace">Zoom link: <a
href="https://ruhr-uni-bochum.zoom-x.de/j/67839364827?pwd=RfcIgK8OUfjkwWTNCf80ARXy118xe8.1"
target="_blank" rel="noopener noreferrer"
class="moz-txt-link-freetext">https://ruhr-uni-bochum.zoom-x.de/j/67839364827?pwd=RfcIgK8OUfjkwWTNCf80ARXy118xe8.1</a></div>
<p>[Meeting ID: 678 3936 4827; Passcode: 841644]</p>
<p><br>
</p>
This talk is open to the public. Please forward it to anyone whom
you think might be interested in spatial navigation. For information
regarding the complete line up for this semester please visit
<a class="moz-txt-link-freetext"
href="https://www.ini.rub.de/teaching/courses/colloquium_brains_in_space_an_interdisciplinary_research_colloquium_on_spatial_navigation_summer_term_2025/">https://www.ini.rub.de/teaching/courses/colloquium_brains_in_space_an_interdisciplinary_research_colloquium_on_spatial_navigation_summer_term_2025/</a>
<p></p>
<div class="moz-signature">-- <br>
Best,
<p>Vinita</p>
<br>
<font color="grey">Vinita Samarasinghe M.Sc., M.A.<br>
Science Manager
<p></p>
<a href="https://rub.de/cns">Arbeitsgruppe Computational
Neuroscience </a><br>
Institut für Neuroinformatik <br>
Ruhr-Universität Bochum, NB 3/73 <br>
Postfachnummer 110 <br>
Universitätstr. 150 <br>
44801 Bochum
<p></p>
Tel: +49 (0)234 32 27996<br>
Mobile: +49 (0)1512 7278698<br>
Email: <a href="mailto: samarasinghe@ini.rub.de"
class="moz-txt-link-freetext">samarasinghe@ini.rub.de</a></font></div>
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