Are warbles and bots related to reproductive status in West Greenland caribou?
In March-April 2008-09, using CARMA protocols, 81 cows and 16 calves were collected in West Greenland from two caribou populations; Akia-Maniitsoq (AM) and Kangerlussuaq-Sisimiut (KS). In both populations, warble larvae numbers were highest in calves and higher in non-pregnant than pregnant cows. No...
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ftdoajarticles:oai:doaj.org/article:244b3bbf2e434c699c21262df64cc994 2023-05-15T15:53:32+02:00 Are warbles and bots related to reproductive status in West Greenland caribou? Christine Cuyler Robert R. White Keith Lewis Colleen Soulliere Anne Gunn Don E. Russell Colin Daniel 2012-03-01T00:00:00Z https://doi.org/10.7557/2.32.2.2273 https://doaj.org/article/244b3bbf2e434c699c21262df64cc994 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/rangifer/article/view/2273 https://doaj.org/toc/1890-6729 doi:10.7557/2.32.2.2273 1890-6729 https://doaj.org/article/244b3bbf2e434c699c21262df64cc994 Rangifer, Vol 32, Iss 2 (2012) energetics nose bot larvae oestridae Rangifer reproduction survival Animal culture SF1-1100 article 2012 ftdoajarticles https://doi.org/10.7557/2.32.2.2273 2022-12-30T23:24:14Z In March-April 2008-09, using CARMA protocols, 81 cows and 16 calves were collected in West Greenland from two caribou populations; Akia-Maniitsoq (AM) and Kangerlussuaq-Sisimiut (KS). In both populations, warble larvae numbers were highest in calves and higher in non-pregnant than pregnant cows. Nose bots showed no relationship with pregnancy or lactation; KS calves had higher nose bot loads than cows, a pattern not observed in AM. Pregnant cows had more rump fat than non-pregnant cows. KS cows lacking rump fat entirely had the highest warble burdens. We observed lactating pregnant cows with moderate larval burdens. Projected energy cost of the heaviest observed combined larvae burdens was equivalent to 2-5 days basal metabolic rate (BMR) for a cow, and 7-12 days BMR for a calf. Foregone fattening in adult cows with average burdens was 0.2 to 0.5 kg, but almost doubled with the heaviest infestations to 0.4 and 0.8 kg. Average burdens in calves resulted in forgone fattening of about 0.5 kg, with peak costs equivalent to 0.7 and 1.1 kg fat for AM and KS calves respectively. Although modest, these projected energy costs of hosting larvae for cows support the negative relationship between rump fat and larvae burden. For calves, hosting high burdens of warble larvae could affect winter survival, specifically those weaned normally in October or in early winter. Harmful effects of oestrid larvae burdens may remain subtle but clearly cumulative in relation to seasonal forage availability and incidence of other parasites. Article in Journal/Newspaper caribou Greenland Kangerlussuaq Maniitsoq Rangifer Sisimiut Directory of Open Access Journals: DOAJ Articles Greenland Kangerlussuaq ENVELOPE(-55.633,-55.633,72.633,72.633) Sisimiut ENVELOPE(-53.674,-53.674,66.939,66.939) Maniitsoq ENVELOPE(-55.217,-55.217,72.967,72.967) Rangifer 243 257 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
energetics nose bot larvae oestridae Rangifer reproduction survival Animal culture SF1-1100 |
spellingShingle |
energetics nose bot larvae oestridae Rangifer reproduction survival Animal culture SF1-1100 Christine Cuyler Robert R. White Keith Lewis Colleen Soulliere Anne Gunn Don E. Russell Colin Daniel Are warbles and bots related to reproductive status in West Greenland caribou? |
topic_facet |
energetics nose bot larvae oestridae Rangifer reproduction survival Animal culture SF1-1100 |
description |
In March-April 2008-09, using CARMA protocols, 81 cows and 16 calves were collected in West Greenland from two caribou populations; Akia-Maniitsoq (AM) and Kangerlussuaq-Sisimiut (KS). In both populations, warble larvae numbers were highest in calves and higher in non-pregnant than pregnant cows. Nose bots showed no relationship with pregnancy or lactation; KS calves had higher nose bot loads than cows, a pattern not observed in AM. Pregnant cows had more rump fat than non-pregnant cows. KS cows lacking rump fat entirely had the highest warble burdens. We observed lactating pregnant cows with moderate larval burdens. Projected energy cost of the heaviest observed combined larvae burdens was equivalent to 2-5 days basal metabolic rate (BMR) for a cow, and 7-12 days BMR for a calf. Foregone fattening in adult cows with average burdens was 0.2 to 0.5 kg, but almost doubled with the heaviest infestations to 0.4 and 0.8 kg. Average burdens in calves resulted in forgone fattening of about 0.5 kg, with peak costs equivalent to 0.7 and 1.1 kg fat for AM and KS calves respectively. Although modest, these projected energy costs of hosting larvae for cows support the negative relationship between rump fat and larvae burden. For calves, hosting high burdens of warble larvae could affect winter survival, specifically those weaned normally in October or in early winter. Harmful effects of oestrid larvae burdens may remain subtle but clearly cumulative in relation to seasonal forage availability and incidence of other parasites. |
format |
Article in Journal/Newspaper |
author |
Christine Cuyler Robert R. White Keith Lewis Colleen Soulliere Anne Gunn Don E. Russell Colin Daniel |
author_facet |
Christine Cuyler Robert R. White Keith Lewis Colleen Soulliere Anne Gunn Don E. Russell Colin Daniel |
author_sort |
Christine Cuyler |
title |
Are warbles and bots related to reproductive status in West Greenland caribou? |
title_short |
Are warbles and bots related to reproductive status in West Greenland caribou? |
title_full |
Are warbles and bots related to reproductive status in West Greenland caribou? |
title_fullStr |
Are warbles and bots related to reproductive status in West Greenland caribou? |
title_full_unstemmed |
Are warbles and bots related to reproductive status in West Greenland caribou? |
title_sort |
are warbles and bots related to reproductive status in west greenland caribou? |
publisher |
Septentrio Academic Publishing |
publishDate |
2012 |
url |
https://doi.org/10.7557/2.32.2.2273 https://doaj.org/article/244b3bbf2e434c699c21262df64cc994 |
long_lat |
ENVELOPE(-55.633,-55.633,72.633,72.633) ENVELOPE(-53.674,-53.674,66.939,66.939) ENVELOPE(-55.217,-55.217,72.967,72.967) |
geographic |
Greenland Kangerlussuaq Sisimiut Maniitsoq |
geographic_facet |
Greenland Kangerlussuaq Sisimiut Maniitsoq |
genre |
caribou Greenland Kangerlussuaq Maniitsoq Rangifer Sisimiut |
genre_facet |
caribou Greenland Kangerlussuaq Maniitsoq Rangifer Sisimiut |
op_source |
Rangifer, Vol 32, Iss 2 (2012) |
op_relation |
https://septentrio.uit.no/index.php/rangifer/article/view/2273 https://doaj.org/toc/1890-6729 doi:10.7557/2.32.2.2273 1890-6729 https://doaj.org/article/244b3bbf2e434c699c21262df64cc994 |
op_doi |
https://doi.org/10.7557/2.32.2.2273 |
container_title |
Rangifer |
container_start_page |
243 |
op_container_end_page |
257 |
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1766388631882170368 |