Variation in quality of caribou and reindeer forage plants associated with season, plant part, and phenology
Plant parts used as forage by caribou and reindeer (Rangifer tarandus) have been collected in conjunction with studies of foraging dynamics, nutrition, growth, and population ecology of this arctic ungulate over the course of several years in Alaska and other circumpolar areas. These samples were su...
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Septentrio Academic Publishing
1990
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Online Access: | https://doi.org/10.7557/2.10.3.841 https://doaj.org/article/b1fbc21c72e24172ae13f09b3a5b0480 |
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ftdoajarticles:oai:doaj.org/article:b1fbc21c72e24172ae13f09b3a5b0480 2023-05-15T15:06:21+02:00 Variation in quality of caribou and reindeer forage plants associated with season, plant part, and phenology David R. Klein 1990-09-01T00:00:00Z https://doi.org/10.7557/2.10.3.841 https://doaj.org/article/b1fbc21c72e24172ae13f09b3a5b0480 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/841 https://doaj.org/toc/1890-6729 doi:10.7557/2.10.3.841 1890-6729 https://doaj.org/article/b1fbc21c72e24172ae13f09b3a5b0480 Rangifer, Vol 10, Iss 3 (1990) caribou reindeer Rangifer tarandus forage quality plant phenology proximate analysis Animal culture SF1-1100 article 1990 ftdoajarticles https://doi.org/10.7557/2.10.3.841 2022-12-31T12:24:27Z Plant parts used as forage by caribou and reindeer (Rangifer tarandus) have been collected in conjunction with studies of foraging dynamics, nutrition, growth, and population ecology of this arctic ungulate over the course of several years in Alaska and other circumpolar areas. These samples were subjected to proximal analyses for percent nitrogen, phosphorus, sodium, carbohydrate, cell wall (NDF), acid detergent fiber (ADF), lignin, cellulose, and residual ash, and treated to determine in vitro and nylon bag dry matter digestibility (DMD). Among winter vascular plant forage only carbohydrates showed a positive correlation with digestibility, wheras in summer nitrogen, phosphorus, and in some cases sodium, also are positively correlated with digestibility. Forage from shrubs and forbs in early summer had higher nitrogen and carbohydrate levels than later in the season, wheras graminoids show an increase in these levels during the first few weeks of growth. Floral parts during anthesis showed higher nitrogen, phosphorus, and carbohydrate levels and higher digestibility than corresponding leaf material. The annual dietary cycle is the product of adjustment of the physiological cycle to seasonal fluctuation in forage quality and quantity. Article in Journal/Newspaper Arctic caribou Rangifer Rangifer tarandus Alaska Directory of Open Access Journals: DOAJ Articles Arctic Rangifer 10 3 123 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
caribou reindeer Rangifer tarandus forage quality plant phenology proximate analysis Animal culture SF1-1100 |
spellingShingle |
caribou reindeer Rangifer tarandus forage quality plant phenology proximate analysis Animal culture SF1-1100 David R. Klein Variation in quality of caribou and reindeer forage plants associated with season, plant part, and phenology |
topic_facet |
caribou reindeer Rangifer tarandus forage quality plant phenology proximate analysis Animal culture SF1-1100 |
description |
Plant parts used as forage by caribou and reindeer (Rangifer tarandus) have been collected in conjunction with studies of foraging dynamics, nutrition, growth, and population ecology of this arctic ungulate over the course of several years in Alaska and other circumpolar areas. These samples were subjected to proximal analyses for percent nitrogen, phosphorus, sodium, carbohydrate, cell wall (NDF), acid detergent fiber (ADF), lignin, cellulose, and residual ash, and treated to determine in vitro and nylon bag dry matter digestibility (DMD). Among winter vascular plant forage only carbohydrates showed a positive correlation with digestibility, wheras in summer nitrogen, phosphorus, and in some cases sodium, also are positively correlated with digestibility. Forage from shrubs and forbs in early summer had higher nitrogen and carbohydrate levels than later in the season, wheras graminoids show an increase in these levels during the first few weeks of growth. Floral parts during anthesis showed higher nitrogen, phosphorus, and carbohydrate levels and higher digestibility than corresponding leaf material. The annual dietary cycle is the product of adjustment of the physiological cycle to seasonal fluctuation in forage quality and quantity. |
format |
Article in Journal/Newspaper |
author |
David R. Klein |
author_facet |
David R. Klein |
author_sort |
David R. Klein |
title |
Variation in quality of caribou and reindeer forage plants associated with season, plant part, and phenology |
title_short |
Variation in quality of caribou and reindeer forage plants associated with season, plant part, and phenology |
title_full |
Variation in quality of caribou and reindeer forage plants associated with season, plant part, and phenology |
title_fullStr |
Variation in quality of caribou and reindeer forage plants associated with season, plant part, and phenology |
title_full_unstemmed |
Variation in quality of caribou and reindeer forage plants associated with season, plant part, and phenology |
title_sort |
variation in quality of caribou and reindeer forage plants associated with season, plant part, and phenology |
publisher |
Septentrio Academic Publishing |
publishDate |
1990 |
url |
https://doi.org/10.7557/2.10.3.841 https://doaj.org/article/b1fbc21c72e24172ae13f09b3a5b0480 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic caribou Rangifer Rangifer tarandus Alaska |
genre_facet |
Arctic caribou Rangifer Rangifer tarandus Alaska |
op_source |
Rangifer, Vol 10, Iss 3 (1990) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/841 https://doaj.org/toc/1890-6729 doi:10.7557/2.10.3.841 1890-6729 https://doaj.org/article/b1fbc21c72e24172ae13f09b3a5b0480 |
op_doi |
https://doi.org/10.7557/2.10.3.841 |
container_title |
Rangifer |
container_volume |
10 |
container_issue |
3 |
container_start_page |
123 |
_version_ |
1766337968716382208 |