Fetal sex ratio in relation to maternal mass and age in reindeer
Theory suggests that a male in good condition at the end of the period of parental investment will outproduce a sister in similar condition, while she will outproduce him if both are in poor condition. Accordingly, natural selection should favor parental ability to adjust the sex ratio of offspring...
Published in: | Canadian Journal of Zoology |
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Language: | English |
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Canadian Science Publishing
1997
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Online Access: | http://dx.doi.org/10.1139/z97-082 http://www.nrcresearchpress.com/doi/pdf/10.1139/z97-082 |
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crcansciencepubl:10.1139/z97-082 2023-12-17T10:49:08+01:00 Fetal sex ratio in relation to maternal mass and age in reindeer Reimers, Eigil Lenvik, Dag 1997 http://dx.doi.org/10.1139/z97-082 http://www.nrcresearchpress.com/doi/pdf/10.1139/z97-082 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 75, issue 4, page 648-650 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1997 crcansciencepubl https://doi.org/10.1139/z97-082 2023-11-19T13:38:21Z Theory suggests that a male in good condition at the end of the period of parental investment will outproduce a sister in similar condition, while she will outproduce him if both are in poor condition. Accordingly, natural selection should favor parental ability to adjust the sex ratio of offspring produced according to parental ability to invest. As maternal condition declines from good to poor, the fetal sex ratio should decline from a high proportion of males to a high proportion of females. Data from 1525 domestic reindeer (Rangifer tarandus) in six different herds slaughtered during December and January in 1976 through 1979 do not support a relationship between the sex of the fetus and either the condition of the mother or her age. Article in Journal/Newspaper Rangifer tarandus Canadian Science Publishing (via Crossref) Canadian Journal of Zoology 75 4 648 650 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Reimers, Eigil Lenvik, Dag Fetal sex ratio in relation to maternal mass and age in reindeer |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Theory suggests that a male in good condition at the end of the period of parental investment will outproduce a sister in similar condition, while she will outproduce him if both are in poor condition. Accordingly, natural selection should favor parental ability to adjust the sex ratio of offspring produced according to parental ability to invest. As maternal condition declines from good to poor, the fetal sex ratio should decline from a high proportion of males to a high proportion of females. Data from 1525 domestic reindeer (Rangifer tarandus) in six different herds slaughtered during December and January in 1976 through 1979 do not support a relationship between the sex of the fetus and either the condition of the mother or her age. |
format |
Article in Journal/Newspaper |
author |
Reimers, Eigil Lenvik, Dag |
author_facet |
Reimers, Eigil Lenvik, Dag |
author_sort |
Reimers, Eigil |
title |
Fetal sex ratio in relation to maternal mass and age in reindeer |
title_short |
Fetal sex ratio in relation to maternal mass and age in reindeer |
title_full |
Fetal sex ratio in relation to maternal mass and age in reindeer |
title_fullStr |
Fetal sex ratio in relation to maternal mass and age in reindeer |
title_full_unstemmed |
Fetal sex ratio in relation to maternal mass and age in reindeer |
title_sort |
fetal sex ratio in relation to maternal mass and age in reindeer |
publisher |
Canadian Science Publishing |
publishDate |
1997 |
url |
http://dx.doi.org/10.1139/z97-082 http://www.nrcresearchpress.com/doi/pdf/10.1139/z97-082 |
genre |
Rangifer tarandus |
genre_facet |
Rangifer tarandus |
op_source |
Canadian Journal of Zoology volume 75, issue 4, page 648-650 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z97-082 |
container_title |
Canadian Journal of Zoology |
container_volume |
75 |
container_issue |
4 |
container_start_page |
648 |
op_container_end_page |
650 |
_version_ |
1785573501399203840 |