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Why should Greylag Goose Anser anser parents rear offspring of others?

Nilsson, Leif LU and Kampe-Persson, Hakon (2003) In Wildfowl 54. p.25-37
Abstract
The benefits and costs of rearing large broods were studied in a population
of neck collared Greylag Geese in Scania, southernmost Sweden. Families were divided into four groups according to brood size: 1-4, 5-8, 9-12 and >12 young. Gosling survival showed a significant positive relationship with brood size on arrival at the rearing area. First-year and third-year local survival, as well as breeding recruitment, showed a significant positive relationships with brood size at fledging. For adults rearing large broods, no costs were detected during the year following
that when they fledged >8 young; both survival rate and reproductive success exceeded the long-term averages.
Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Wildfowl
volume
54
pages
25 - 37
publisher
Wildfowl and Wetlands Trust
external identifiers
  • scopus:4444238269
ISSN
0954-6324
language
English
LU publication?
yes
id
d09a6422-6f7d-456e-a29b-4ada323e0df5
alternative location
http://wildfowl.wwt.org.uk/index.php/wildfowl/article/view/1141/1141
date added to LUP
2016-12-12 14:51:21
date last changed
2022-04-24 20:07:52
@article{d09a6422-6f7d-456e-a29b-4ada323e0df5,
  abstract     = {{The benefits and costs of rearing large broods were studied in a population<br>
of neck collared Greylag Geese in Scania, southernmost Sweden. Families were divided into four groups according to brood size: 1-4, 5-8, 9-12 and &gt;12 young. Gosling survival showed a significant positive relationship with brood size on arrival at the rearing area. First-year and third-year local survival, as well as breeding recruitment, showed a significant positive relationships with brood size at fledging. For adults rearing large broods, no costs were detected during the year following<br>
that when they fledged &gt;8 young; both survival rate and reproductive success exceeded the long-term averages.}},
  author       = {{Nilsson, Leif and Kampe-Persson, Hakon}},
  issn         = {{0954-6324}},
  language     = {{eng}},
  pages        = {{25--37}},
  publisher    = {{Wildfowl and Wetlands Trust}},
  series       = {{Wildfowl}},
  title        = {{Why should Greylag Goose <em>Anser anser</em> parents rear offspring of others?}},
  url          = {{http://wildfowl.wwt.org.uk/index.php/wildfowl/article/view/1141/1141}},
  volume       = {{54}},
  year         = {{2003}},
}