Diet selection in Arctic lemmings ( Lemmus sibiricus and Dicrostonyx groenlandicus ): forage availability and natural diets
We describe forage availability and diets of the lemmings Lemmus sibiricus and Dicrostonyx groenlandicus at Igloolik Island, Northwest Territories. Summer and winter diets of Dicrostonyx were dominated by the evergreen shrub Dryas integrifolia and supplemented by the deciduous shrub Salix arctica. L...
Published in: | Canadian Journal of Zoology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1986
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/z86-253 http://www.nrcresearchpress.com/doi/pdf/10.1139/z86-253 |
id |
crcansciencepubl:10.1139/z86-253 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/z86-253 2023-12-17T10:25:55+01:00 Diet selection in Arctic lemmings ( Lemmus sibiricus and Dicrostonyx groenlandicus ): forage availability and natural diets Rodgers, Arthur R. Lewis, Martin C. 1986 http://dx.doi.org/10.1139/z86-253 http://www.nrcresearchpress.com/doi/pdf/10.1139/z86-253 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 64, issue 8, page 1684-1689 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1986 crcansciencepubl https://doi.org/10.1139/z86-253 2023-11-19T13:38:36Z We describe forage availability and diets of the lemmings Lemmus sibiricus and Dicrostonyx groenlandicus at Igloolik Island, Northwest Territories. Summer and winter diets of Dicrostonyx were dominated by the evergreen shrub Dryas integrifolia and supplemented by the deciduous shrub Salix arctica. Lemmus ate mainly graminoids and some mosses in summer but the reverse in winter. In both species, winter diets were similar in different habitats. Comparison with diets of lemmings in Alaska show sufficient similarity to explain the synchrony of population fluctuations over wide geographical areas. Site-specific differences occur, however, and these are accounted for by an examination of the diet selection process in each species. These differences have important implications for the demography of lemmings at different sites. Article in Journal/Newspaper Arctic Dicrostonyx groenlandicus Igloolik Lemmus sibiricus Northwest Territories Alaska Canadian Science Publishing (via Crossref) Arctic Northwest Territories Igloolik ENVELOPE(-81.800,-81.800,69.378,69.378) Canadian Journal of Zoology 64 8 1684 1689 |
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 Rodgers, Arthur R. Lewis, Martin C. Diet selection in Arctic lemmings ( Lemmus sibiricus and Dicrostonyx groenlandicus ): forage availability and natural diets |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
We describe forage availability and diets of the lemmings Lemmus sibiricus and Dicrostonyx groenlandicus at Igloolik Island, Northwest Territories. Summer and winter diets of Dicrostonyx were dominated by the evergreen shrub Dryas integrifolia and supplemented by the deciduous shrub Salix arctica. Lemmus ate mainly graminoids and some mosses in summer but the reverse in winter. In both species, winter diets were similar in different habitats. Comparison with diets of lemmings in Alaska show sufficient similarity to explain the synchrony of population fluctuations over wide geographical areas. Site-specific differences occur, however, and these are accounted for by an examination of the diet selection process in each species. These differences have important implications for the demography of lemmings at different sites. |
format |
Article in Journal/Newspaper |
author |
Rodgers, Arthur R. Lewis, Martin C. |
author_facet |
Rodgers, Arthur R. Lewis, Martin C. |
author_sort |
Rodgers, Arthur R. |
title |
Diet selection in Arctic lemmings ( Lemmus sibiricus and Dicrostonyx groenlandicus ): forage availability and natural diets |
title_short |
Diet selection in Arctic lemmings ( Lemmus sibiricus and Dicrostonyx groenlandicus ): forage availability and natural diets |
title_full |
Diet selection in Arctic lemmings ( Lemmus sibiricus and Dicrostonyx groenlandicus ): forage availability and natural diets |
title_fullStr |
Diet selection in Arctic lemmings ( Lemmus sibiricus and Dicrostonyx groenlandicus ): forage availability and natural diets |
title_full_unstemmed |
Diet selection in Arctic lemmings ( Lemmus sibiricus and Dicrostonyx groenlandicus ): forage availability and natural diets |
title_sort |
diet selection in arctic lemmings ( lemmus sibiricus and dicrostonyx groenlandicus ): forage availability and natural diets |
publisher |
Canadian Science Publishing |
publishDate |
1986 |
url |
http://dx.doi.org/10.1139/z86-253 http://www.nrcresearchpress.com/doi/pdf/10.1139/z86-253 |
long_lat |
ENVELOPE(-81.800,-81.800,69.378,69.378) |
geographic |
Arctic Northwest Territories Igloolik |
geographic_facet |
Arctic Northwest Territories Igloolik |
genre |
Arctic Dicrostonyx groenlandicus Igloolik Lemmus sibiricus Northwest Territories Alaska |
genre_facet |
Arctic Dicrostonyx groenlandicus Igloolik Lemmus sibiricus Northwest Territories Alaska |
op_source |
Canadian Journal of Zoology volume 64, issue 8, page 1684-1689 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z86-253 |
container_title |
Canadian Journal of Zoology |
container_volume |
64 |
container_issue |
8 |
container_start_page |
1684 |
op_container_end_page |
1689 |
_version_ |
1785577584424124416 |