Early-life development of contrasting outbound and return migration routes in a long-lived seabird

Wynn, Joe, Guilford, Tim, Padget, Oliver, Perrins, Chris M, McKee, Neville, Gillies, Natasha ORCID: 0000-0002-9950-609X, Tyson, Chris, Dean, Ben, Kirk, Holly and Fayet, Annette L (2022) Early-life development of contrasting outbound and return migration routes in a long-lived seabird. IBIS, 164 (2). pp. 596-602.

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Official URL: http://dx.doi.org/10.1111/ibi.13030

Abstract

<jats:p>Although mechanisms of genetic and social inheritance have been implicated in determining the migratory routes of birds, it is unclear what their relative contributions are in species where outbound and return migration routes differ (‘loop migrants’). Here, we used biologging devices to follow Manx Shearwaters <jats:italic>Puffinus puffinus</jats:italic>, a long‐lived seabird with a trans‐Atlantic loop migration, from before their first migration until their 3rd calendar year. We found that Shearwaters undertake first migration without their parents, setting off almost immediately upon fledging and moving along a more direct trajectory than adults, before wintering in the same part of the South Atlantic as adult conspecifics and subsequently iteratively developing their return migration route over the next 3 years, each time returning – unlike adults – via a Western Atlantic route. We propose that the first outbound migration in Manx Shearwaters is broadly consistent with a genetically inherited vector, that both the outbound and the return migration trajectories are unlikely to be learnt from experienced conspecifics, and that return migration in Manx Shearwaters (and perhaps loop migrants more generally) may be informed by genetically inherited information and/or local environmental conditions.</jats:p>

Item Type:	Article
Uncontrolled Keywords:	development of navigation, genetics, inheritance of migratory route, learning, loop migration, navigation, seabird
Divisions:	Faculty of Science and Engineering > School of Environmental Sciences
Depositing User:	Symplectic Admin
Date Deposited:	08 Jun 2022 14:47
Last Modified:	04 Sep 2023 02:39
DOI:	10.1111/ibi.13030
Open Access URL:	https://onlinelibrary.wiley.com/doi/10.1111/ibi.13...
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3156070