Do adult and juvenile dunlins Calidris alpina form randomly mixed flocks during fall migration?
(2009) In Journal of Avian Biology 40(6). p.646-649- Abstract
- Many northerly breeding shorebird species show a separation in timing of adult and juvenile migration. If, in addition to genetic control of migration, learning from experienced conspecifics is advantageous, juveniles should join adult birds during their first fall migration when possible. We here present a method to test if juveniles mix with adults during the period of overlap during southward migration, using dunlin Calidris alpina migrating over southern Sweden as an example. While taking timing differences between age classes into account, we compare flock compositions observed in the field against randomized flock-compositions based on the pool of available individuals derived from the field data. During both the early, the... (More)
- Many northerly breeding shorebird species show a separation in timing of adult and juvenile migration. If, in addition to genetic control of migration, learning from experienced conspecifics is advantageous, juveniles should join adult birds during their first fall migration when possible. We here present a method to test if juveniles mix with adults during the period of overlap during southward migration, using dunlin Calidris alpina migrating over southern Sweden as an example. While taking timing differences between age classes into account, we compare flock compositions observed in the field against randomized flock-compositions based on the pool of available individuals derived from the field data. During both the early, the adult-dominated, and later, the juvenile-dominated, part of the season, age classes segregate. Applied to other shorebird species, our method could be used in a comparative sense to evaluate the potential for social learning of migration routes. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1533492
- author
- Henningsson, Sara LU and Karlsson, Håkan LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Avian Biology
- volume
- 40
- issue
- 6
- pages
- 646 - 649
- publisher
- Wiley-Blackwell
- external identifiers
-
- wos:000272452500010
- scopus:72249088993
- ISSN
- 0908-8857
- DOI
- 10.1111/j.1600-048X.2009.04598.x
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Animal Ecology (Closed 2011) (011012001)
- id
- 56df5d93-dc95-44ce-8642-b7a234445d03 (old id 1533492)
- date added to LUP
- 2016-04-01 11:49:36
- date last changed
- 2022-04-05 05:39:20
@article{56df5d93-dc95-44ce-8642-b7a234445d03,
abstract = {{Many northerly breeding shorebird species show a separation in timing of adult and juvenile migration. If, in addition to genetic control of migration, learning from experienced conspecifics is advantageous, juveniles should join adult birds during their first fall migration when possible. We here present a method to test if juveniles mix with adults during the period of overlap during southward migration, using dunlin Calidris alpina migrating over southern Sweden as an example. While taking timing differences between age classes into account, we compare flock compositions observed in the field against randomized flock-compositions based on the pool of available individuals derived from the field data. During both the early, the adult-dominated, and later, the juvenile-dominated, part of the season, age classes segregate. Applied to other shorebird species, our method could be used in a comparative sense to evaluate the potential for social learning of migration routes.}},
author = {{Henningsson, Sara and Karlsson, Håkan}},
issn = {{0908-8857}},
language = {{eng}},
number = {{6}},
pages = {{646--649}},
publisher = {{Wiley-Blackwell}},
series = {{Journal of Avian Biology}},
title = {{Do adult and juvenile dunlins Calidris alpina form randomly mixed flocks during fall migration?}},
url = {{http://dx.doi.org/10.1111/j.1600-048X.2009.04598.x}},
doi = {{10.1111/j.1600-048X.2009.04598.x}},
volume = {{40}},
year = {{2009}},
}