Brood parasitism, relatedness and sociality: a kinship role in female reproductive tactics
ABSTRACT Conspecific brood parasitism (CBP) is a reproductive tactic in which parasitic females lay eggs in nests of other females of the same species that then raise the joint brood. Parasites benefit by increased reproduction, without costs of parental care for the parasitic eggs. CBP occurs in ma...
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crwiley:10.1111/brv.12455 2024-06-02T08:14:27+00:00 Brood parasitism, relatedness and sociality: a kinship role in female reproductive tactics Andersson, Malte Åhlund, Matti Waldeck, Peter 2018 http://dx.doi.org/10.1111/brv.12455 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fbrv.12455 https://onlinelibrary.wiley.com/doi/pdf/10.1111/brv.12455 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Biological Reviews volume 94, issue 1, page 307-327 ISSN 1464-7931 1469-185X journal-article 2018 crwiley https://doi.org/10.1111/brv.12455 2024-05-03T10:59:52Z ABSTRACT Conspecific brood parasitism (CBP) is a reproductive tactic in which parasitic females lay eggs in nests of other females of the same species that then raise the joint brood. Parasites benefit by increased reproduction, without costs of parental care for the parasitic eggs. CBP occurs in many egg‐laying animals, among birds most often in species with large clutches and self‐feeding young: two major factors facilitating successful parasitism. CBP is particularly common in waterfowl (Anatidae), a group with female‐biased natal philopatry and locally related females. Theory suggests that relatedness between host and parasite can lead to inclusive fitness benefits for both, but if host costs are high, parasites should instead target unrelated females. Pairwise relatedness ( r ) in host–parasite (h‐p) pairs of females has been estimated using molecular genetic methods in seven waterfowl (10 studies). In many h‐p pairs, the two females were unrelated (with low r , near the local population mean). However, close relatives ( r = 0.5) were over‐represented in h‐p pairs, which in all 10 studies had higher mean relatedness than other females. In one species where this was studied, h‐p relatedness was higher than between nesting close neighbours, and hosts parasitized by non‐relatives aggressively rejected other females. In another species, birth nest‐mates (mother–daughters, sisters) associated in the breeding area as adults, and became h‐p pairs more often than expected by chance. These and other results point to recognition of birth nest‐mates and perhaps other close relatives. For small to medium host clutch sizes, addition of a few parasitic eggs need not reduce host offspring success. Estimates in two species suggest that hosts can then gain inclusive fitness if parasitized by relatives. Other evidence of female cooperation is incubation by old eider Somateria mollissima females of clutches laid by their relatives, and merging and joint care of broods of young. Merging females tended to be more closely ... Article in Journal/Newspaper Somateria mollissima Wiley Online Library Biological Reviews 94 1 307 327 |
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Wiley Online Library |
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English |
description |
ABSTRACT Conspecific brood parasitism (CBP) is a reproductive tactic in which parasitic females lay eggs in nests of other females of the same species that then raise the joint brood. Parasites benefit by increased reproduction, without costs of parental care for the parasitic eggs. CBP occurs in many egg‐laying animals, among birds most often in species with large clutches and self‐feeding young: two major factors facilitating successful parasitism. CBP is particularly common in waterfowl (Anatidae), a group with female‐biased natal philopatry and locally related females. Theory suggests that relatedness between host and parasite can lead to inclusive fitness benefits for both, but if host costs are high, parasites should instead target unrelated females. Pairwise relatedness ( r ) in host–parasite (h‐p) pairs of females has been estimated using molecular genetic methods in seven waterfowl (10 studies). In many h‐p pairs, the two females were unrelated (with low r , near the local population mean). However, close relatives ( r = 0.5) were over‐represented in h‐p pairs, which in all 10 studies had higher mean relatedness than other females. In one species where this was studied, h‐p relatedness was higher than between nesting close neighbours, and hosts parasitized by non‐relatives aggressively rejected other females. In another species, birth nest‐mates (mother–daughters, sisters) associated in the breeding area as adults, and became h‐p pairs more often than expected by chance. These and other results point to recognition of birth nest‐mates and perhaps other close relatives. For small to medium host clutch sizes, addition of a few parasitic eggs need not reduce host offspring success. Estimates in two species suggest that hosts can then gain inclusive fitness if parasitized by relatives. Other evidence of female cooperation is incubation by old eider Somateria mollissima females of clutches laid by their relatives, and merging and joint care of broods of young. Merging females tended to be more closely ... |
format |
Article in Journal/Newspaper |
author |
Andersson, Malte Åhlund, Matti Waldeck, Peter |
spellingShingle |
Andersson, Malte Åhlund, Matti Waldeck, Peter Brood parasitism, relatedness and sociality: a kinship role in female reproductive tactics |
author_facet |
Andersson, Malte Åhlund, Matti Waldeck, Peter |
author_sort |
Andersson, Malte |
title |
Brood parasitism, relatedness and sociality: a kinship role in female reproductive tactics |
title_short |
Brood parasitism, relatedness and sociality: a kinship role in female reproductive tactics |
title_full |
Brood parasitism, relatedness and sociality: a kinship role in female reproductive tactics |
title_fullStr |
Brood parasitism, relatedness and sociality: a kinship role in female reproductive tactics |
title_full_unstemmed |
Brood parasitism, relatedness and sociality: a kinship role in female reproductive tactics |
title_sort |
brood parasitism, relatedness and sociality: a kinship role in female reproductive tactics |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1111/brv.12455 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fbrv.12455 https://onlinelibrary.wiley.com/doi/pdf/10.1111/brv.12455 |
genre |
Somateria mollissima |
genre_facet |
Somateria mollissima |
op_source |
Biological Reviews volume 94, issue 1, page 307-327 ISSN 1464-7931 1469-185X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/brv.12455 |
container_title |
Biological Reviews |
container_volume |
94 |
container_issue |
1 |
container_start_page |
307 |
op_container_end_page |
327 |
_version_ |
1800738327692836864 |