Changes in body size in fluctuating populations of the collared lemming: age and photoperiod influences
Paired wet lens weights of 115 laboratory-reared collared lemmings were plotted against known age, to assess the reliability of this parameter, as a means of estimating age. Approximately 85% of the total variability in In age (A) was accounted for by In paired wet lens weight (W) (equation of best...
Published in: | Canadian Journal of Zoology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1981
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/z81-031 http://www.nrcresearchpress.com/doi/pdf/10.1139/z81-031 |
id |
crcansciencepubl:10.1139/z81-031 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/z81-031 2023-12-17T10:29:46+01:00 Changes in body size in fluctuating populations of the collared lemming: age and photoperiod influences Mallory, Frank F. Elliott, J. Richard Brooks, Ronald J. 1981 http://dx.doi.org/10.1139/z81-031 http://www.nrcresearchpress.com/doi/pdf/10.1139/z81-031 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 59, issue 2, page 174-182 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1981 crcansciencepubl https://doi.org/10.1139/z81-031 2023-11-19T13:38:40Z Paired wet lens weights of 115 laboratory-reared collared lemmings were plotted against known age, to assess the reliability of this parameter, as a means of estimating age. Approximately 85% of the total variability in In age (A) was accounted for by In paired wet lens weight (W) (equation of best fit; In A (days) = −0.9771 + 2.186 In W (milligrams). In addition, variation in gender and photoperiod did not influence lens weight, although other parameters such as body weight and pelage were significantly affected.Field data from Eskimo Point, N. W.T., indicated that animals were older and heavier during the peak year (1973). Reduced recruitment and length of breeding season were observed during high densities, and sexual maturation was delayed in the nonbreeding segment of the population. Fluctuations in body size during microtine cycles were discussed as influenced by age, photoperiod, and shifts in the breeding season. Article in Journal/Newspaper eskimo* Canadian Science Publishing (via Crossref) Eskimo Point Canadian Journal of Zoology 59 2 174 182 |
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 Mallory, Frank F. Elliott, J. Richard Brooks, Ronald J. Changes in body size in fluctuating populations of the collared lemming: age and photoperiod influences |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Paired wet lens weights of 115 laboratory-reared collared lemmings were plotted against known age, to assess the reliability of this parameter, as a means of estimating age. Approximately 85% of the total variability in In age (A) was accounted for by In paired wet lens weight (W) (equation of best fit; In A (days) = −0.9771 + 2.186 In W (milligrams). In addition, variation in gender and photoperiod did not influence lens weight, although other parameters such as body weight and pelage were significantly affected.Field data from Eskimo Point, N. W.T., indicated that animals were older and heavier during the peak year (1973). Reduced recruitment and length of breeding season were observed during high densities, and sexual maturation was delayed in the nonbreeding segment of the population. Fluctuations in body size during microtine cycles were discussed as influenced by age, photoperiod, and shifts in the breeding season. |
format |
Article in Journal/Newspaper |
author |
Mallory, Frank F. Elliott, J. Richard Brooks, Ronald J. |
author_facet |
Mallory, Frank F. Elliott, J. Richard Brooks, Ronald J. |
author_sort |
Mallory, Frank F. |
title |
Changes in body size in fluctuating populations of the collared lemming: age and photoperiod influences |
title_short |
Changes in body size in fluctuating populations of the collared lemming: age and photoperiod influences |
title_full |
Changes in body size in fluctuating populations of the collared lemming: age and photoperiod influences |
title_fullStr |
Changes in body size in fluctuating populations of the collared lemming: age and photoperiod influences |
title_full_unstemmed |
Changes in body size in fluctuating populations of the collared lemming: age and photoperiod influences |
title_sort |
changes in body size in fluctuating populations of the collared lemming: age and photoperiod influences |
publisher |
Canadian Science Publishing |
publishDate |
1981 |
url |
http://dx.doi.org/10.1139/z81-031 http://www.nrcresearchpress.com/doi/pdf/10.1139/z81-031 |
geographic |
Eskimo Point |
geographic_facet |
Eskimo Point |
genre |
eskimo* |
genre_facet |
eskimo* |
op_source |
Canadian Journal of Zoology volume 59, issue 2, page 174-182 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z81-031 |
container_title |
Canadian Journal of Zoology |
container_volume |
59 |
container_issue |
2 |
container_start_page |
174 |
op_container_end_page |
182 |
_version_ |
1785582561937850368 |