Home About Browse Search
Svenska


Leapfrog migration and residents: New migratory habits in Swedish Greylag geese

Nilsson, Lovisa and Olsson, Camilla and Elmberg, Johan and Bunnefeld, Nils and Liljebäck, Niklas and Månsson, Johan (2022). Leapfrog migration and residents: New migratory habits in Swedish Greylag geese. Ecology and Evolution. 12 :3 , e8740
[Research article]

[img] PDF
707kB

Abstract

Knowledge about intraspecific and individual variation in bird migration behavior is important to predict spatiotemporal distribution, patterns of phenology, breeding success, and interactions with the surrounding environment (e.g., human livelihoods). Such variation is key to adaptive, evolutionary responses, i.e., how individuals respond spatiotemporally to the environment to maximize fitness. In this study we used GPS location data from one to three full annual cycles from 76 Greylag geese (Anser anser) to test the hypothesis that geese originating at five latitudinally separated capture sites in Sweden have different migration strategies. We also assessed individual consistency in movement strategy over consecutive annual cycles. We used the scale-independent net squared displacement modeling framework to quantify variables of autumn and spring migration for geese from each capture site: distance, timing, and duration. Our results demonstrate a positive correlation between migration distance and latitudinal origin. Geese from the northernmost site on average migrated farther south and about 15 times as far as the short-moving or resident geese from the two southernmost sites. Movement strategies of individual geese varied considerably both within and among capture sites. Individual consistency in movement strategy from one annual cycle to the consecutive was high in geese from the northern sites moving the farthest, whereas the resident or short-moving geese from the southernmost sites generally showed lower or no individual consistency. These changes have come about during a time span so short (i.e., ca. 35 years or 8-10 generations) that it can unlikely be explained by classical Darwinian between-generation adaptation. Consequently, and given that young geese follow their parents during their first migration, we presume an important role of within-family, inter-generation change as a driver behind the large-scale changed migration habits in Swedish Greylag geese.

Authors/Creators:Nilsson, Lovisa and Olsson, Camilla and Elmberg, Johan and Bunnefeld, Nils and Liljebäck, Niklas and Månsson, Johan
Title:Leapfrog migration and residents: New migratory habits in Swedish Greylag geese
Series Name/Journal:Ecology and Evolution
Year of publishing :2022
Volume:12
Number:3
Article number:e8740
Number of Pages:11
Publisher:WILEY
ISSN:2045-7758
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:animal movement, Anser anser, flyway management, GPS telemetry, individual variation, net squared displacement
URN:NBN:urn:nbn:se:slu:epsilon-p-116790
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-116790
Additional ID:
Type of IDID
DOI10.1002/ece3.8740
Web of Science (WoS)000774874900001
ID Code:27719
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:06 May 2022 09:56
Metadata Last Modified:12 Sep 2022 08:20

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits