Development and availability of the free-living stages of Ostertagia gruehneri, an abomasal parasite of barrenground caribou ( Rangifer tarandus groenlandicus), on the Canadian tundra
SUMMARY Climate change in the Arctic is anticipated to alter the ecology of northern ecosystems, including the transmission dynamics of many parasite species. One parasite of concern is Ostertagia gruehneri , an abomasal nematode of Rangifer ssp. that causes reduced food intake, weight loss, and dec...
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Language: | English |
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Cambridge University Press (CUP)
2012
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Online Access: | http://dx.doi.org/10.1017/s003118201200042x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S003118201200042X |
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crcambridgeupr:10.1017/s003118201200042x 2024-05-19T07:36:24+00:00 Development and availability of the free-living stages of Ostertagia gruehneri, an abomasal parasite of barrenground caribou ( Rangifer tarandus groenlandicus), on the Canadian tundra HOAR, BRYANNE M. RUCKSTUHL, KATHREEN KUTZ, SUSAN 2012 http://dx.doi.org/10.1017/s003118201200042x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S003118201200042X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Parasitology volume 139, issue 8, page 1093-1100 ISSN 0031-1820 1469-8161 journal-article 2012 crcambridgeupr https://doi.org/10.1017/s003118201200042x 2024-05-02T06:51:04Z SUMMARY Climate change in the Arctic is anticipated to alter the ecology of northern ecosystems, including the transmission dynamics of many parasite species. One parasite of concern is Ostertagia gruehneri , an abomasal nematode of Rangifer ssp. that causes reduced food intake, weight loss, and decreased pregnancy rates in reindeer. We investigated the development, availability, and overwinter survival of the free-living stages of O. gruehneri on the tundra. Fecal plots containing O. gruehneri eggs were established in the Northwest Territories, Canada under natural and artificially warmed conditions and sampled throughout the growing season of 2008 and the spring of 2009. Infective L3 were present 3–4 weeks post-establishment from all trials under both treatments, except for the trial established 4 July 2008 under warmed conditions wherein the first L3 was recovered 7 weeks post-establishment. These plots were exposed to significantly more time above 30°C than the natural plots established on the same date, suggesting a maximum temperature threshold for development. There was high overwinter survival of L2 and L3 across treatments and overwintering L2 appeared to develop to L3 the following spring. The impact of climate change on O. gruehneri is expected to be dynamic throughout the year with extreme maximum temperatures negatively impacting development rates. Article in Journal/Newspaper Arctic Climate change Northwest Territories Rangifer tarandus Tundra Cambridge University Press Parasitology 139 8 1093 1100 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
SUMMARY Climate change in the Arctic is anticipated to alter the ecology of northern ecosystems, including the transmission dynamics of many parasite species. One parasite of concern is Ostertagia gruehneri , an abomasal nematode of Rangifer ssp. that causes reduced food intake, weight loss, and decreased pregnancy rates in reindeer. We investigated the development, availability, and overwinter survival of the free-living stages of O. gruehneri on the tundra. Fecal plots containing O. gruehneri eggs were established in the Northwest Territories, Canada under natural and artificially warmed conditions and sampled throughout the growing season of 2008 and the spring of 2009. Infective L3 were present 3–4 weeks post-establishment from all trials under both treatments, except for the trial established 4 July 2008 under warmed conditions wherein the first L3 was recovered 7 weeks post-establishment. These plots were exposed to significantly more time above 30°C than the natural plots established on the same date, suggesting a maximum temperature threshold for development. There was high overwinter survival of L2 and L3 across treatments and overwintering L2 appeared to develop to L3 the following spring. The impact of climate change on O. gruehneri is expected to be dynamic throughout the year with extreme maximum temperatures negatively impacting development rates. |
format |
Article in Journal/Newspaper |
author |
HOAR, BRYANNE M. RUCKSTUHL, KATHREEN KUTZ, SUSAN |
spellingShingle |
HOAR, BRYANNE M. RUCKSTUHL, KATHREEN KUTZ, SUSAN Development and availability of the free-living stages of Ostertagia gruehneri, an abomasal parasite of barrenground caribou ( Rangifer tarandus groenlandicus), on the Canadian tundra |
author_facet |
HOAR, BRYANNE M. RUCKSTUHL, KATHREEN KUTZ, SUSAN |
author_sort |
HOAR, BRYANNE M. |
title |
Development and availability of the free-living stages of Ostertagia gruehneri, an abomasal parasite of barrenground caribou ( Rangifer tarandus groenlandicus), on the Canadian tundra |
title_short |
Development and availability of the free-living stages of Ostertagia gruehneri, an abomasal parasite of barrenground caribou ( Rangifer tarandus groenlandicus), on the Canadian tundra |
title_full |
Development and availability of the free-living stages of Ostertagia gruehneri, an abomasal parasite of barrenground caribou ( Rangifer tarandus groenlandicus), on the Canadian tundra |
title_fullStr |
Development and availability of the free-living stages of Ostertagia gruehneri, an abomasal parasite of barrenground caribou ( Rangifer tarandus groenlandicus), on the Canadian tundra |
title_full_unstemmed |
Development and availability of the free-living stages of Ostertagia gruehneri, an abomasal parasite of barrenground caribou ( Rangifer tarandus groenlandicus), on the Canadian tundra |
title_sort |
development and availability of the free-living stages of ostertagia gruehneri, an abomasal parasite of barrenground caribou ( rangifer tarandus groenlandicus), on the canadian tundra |
publisher |
Cambridge University Press (CUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1017/s003118201200042x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S003118201200042X |
genre |
Arctic Climate change Northwest Territories Rangifer tarandus Tundra |
genre_facet |
Arctic Climate change Northwest Territories Rangifer tarandus Tundra |
op_source |
Parasitology volume 139, issue 8, page 1093-1100 ISSN 0031-1820 1469-8161 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s003118201200042x |
container_title |
Parasitology |
container_volume |
139 |
container_issue |
8 |
container_start_page |
1093 |
op_container_end_page |
1100 |
_version_ |
1799475518368645120 |