Parasite intensity and fur coloration in reindeer calves – contrasting artificial and natural selection
Summary In reindeer, the variation in fur coloration is higher in semi‐domesticated than in wild populations. This difference might result from impacts of natural enemies acting on conspicuously coloured individuals with higher intensity in natural than semi‐domesticated populations. While predator...
Published in: | Journal of Animal Ecology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2009
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1365-2656.2008.01515.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2656.2008.01515.x https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2656.2008.01515.x |
id |
crwiley:10.1111/j.1365-2656.2008.01515.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1365-2656.2008.01515.x 2024-06-02T08:12:05+00:00 Parasite intensity and fur coloration in reindeer calves – contrasting artificial and natural selection Rødven, Rolf Männikkö, Inkeri Ims, Rolf A. Yoccoz, Nigel G. Folstad, Ivar 2009 http://dx.doi.org/10.1111/j.1365-2656.2008.01515.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2656.2008.01515.x https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2656.2008.01515.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Animal Ecology volume 78, issue 3, page 600-607 ISSN 0021-8790 1365-2656 journal-article 2009 crwiley https://doi.org/10.1111/j.1365-2656.2008.01515.x 2024-05-03T11:31:01Z Summary In reindeer, the variation in fur coloration is higher in semi‐domesticated than in wild populations. This difference might result from impacts of natural enemies acting on conspicuously coloured individuals with higher intensity in natural than semi‐domesticated populations. While predator pressure is rather similar for wild and semi‐domesticated populations, semi‐domesticated reindeer are less impacted by parasitism due to endectocidic treatment. In this study, we estimated the intensity of warble flies in different reindeer colour morphs in a large sample of untreated calves from multiple semi‐domesticated herds in northern Norway. We found that lighter coloured reindeer calves have higher intensities of warble fly larvae than darker ones. This is associated with a decrease in body mass, and may hence influence subsequent fitness of the animals. The high intensity of parasites in white calves implies that they are either more exposed or less resistant to parasitic infections. In either case, parasitism by warble flies appears to be a proximate cause driving coloration of reindeer towards a reduced variability in natural populations. Article in Journal/Newspaper Northern Norway Wiley Online Library Norway Journal of Animal Ecology 78 3 600 607 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Summary In reindeer, the variation in fur coloration is higher in semi‐domesticated than in wild populations. This difference might result from impacts of natural enemies acting on conspicuously coloured individuals with higher intensity in natural than semi‐domesticated populations. While predator pressure is rather similar for wild and semi‐domesticated populations, semi‐domesticated reindeer are less impacted by parasitism due to endectocidic treatment. In this study, we estimated the intensity of warble flies in different reindeer colour morphs in a large sample of untreated calves from multiple semi‐domesticated herds in northern Norway. We found that lighter coloured reindeer calves have higher intensities of warble fly larvae than darker ones. This is associated with a decrease in body mass, and may hence influence subsequent fitness of the animals. The high intensity of parasites in white calves implies that they are either more exposed or less resistant to parasitic infections. In either case, parasitism by warble flies appears to be a proximate cause driving coloration of reindeer towards a reduced variability in natural populations. |
format |
Article in Journal/Newspaper |
author |
Rødven, Rolf Männikkö, Inkeri Ims, Rolf A. Yoccoz, Nigel G. Folstad, Ivar |
spellingShingle |
Rødven, Rolf Männikkö, Inkeri Ims, Rolf A. Yoccoz, Nigel G. Folstad, Ivar Parasite intensity and fur coloration in reindeer calves – contrasting artificial and natural selection |
author_facet |
Rødven, Rolf Männikkö, Inkeri Ims, Rolf A. Yoccoz, Nigel G. Folstad, Ivar |
author_sort |
Rødven, Rolf |
title |
Parasite intensity and fur coloration in reindeer calves – contrasting artificial and natural selection |
title_short |
Parasite intensity and fur coloration in reindeer calves – contrasting artificial and natural selection |
title_full |
Parasite intensity and fur coloration in reindeer calves – contrasting artificial and natural selection |
title_fullStr |
Parasite intensity and fur coloration in reindeer calves – contrasting artificial and natural selection |
title_full_unstemmed |
Parasite intensity and fur coloration in reindeer calves – contrasting artificial and natural selection |
title_sort |
parasite intensity and fur coloration in reindeer calves – contrasting artificial and natural selection |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.1111/j.1365-2656.2008.01515.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2656.2008.01515.x https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2656.2008.01515.x |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway |
genre_facet |
Northern Norway |
op_source |
Journal of Animal Ecology volume 78, issue 3, page 600-607 ISSN 0021-8790 1365-2656 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2656.2008.01515.x |
container_title |
Journal of Animal Ecology |
container_volume |
78 |
container_issue |
3 |
container_start_page |
600 |
op_container_end_page |
607 |
_version_ |
1800758424504369152 |