Anti-parasite treatment results in decreased estimated survival with increasing lead (Pb) levels in the common eider Somateria mollissima
Field experiments where parasites are removed through treatment and contaminant levels in host tissues are recorded can provide insight into the combined effects of parasitism and contaminants in wild populations. In 2013 and 2014, we treated northern common eider ducks ( Somateria mollissima ) arri...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
---|---|
Main Authors: | , , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The Royal Society
2019
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1098/rspb.2019.1356 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2019.1356 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2019.1356 |
id |
crroyalsociety:10.1098/rspb.2019.1356 |
---|---|
record_format |
openpolar |
spelling |
crroyalsociety:10.1098/rspb.2019.1356 2024-09-09T19:36:51+00:00 Anti-parasite treatment results in decreased estimated survival with increasing lead (Pb) levels in the common eider Somateria mollissima Morrill, A. Provencher, J. F. Gilchrist, H. G. Mallory, M. L. Forbes, M. R. Environment and Climate Change Canada Arctic Institute of North America Institute for Wetland and Waterfowl Research, Ducks Unlimited Canada W. Garfield Weston Foundation Indigenous and Northern Affairs Canada Canada Research Chairs Natural Sciences and Engineering Research Council of Canada Northern Scientific Training Program 2019 http://dx.doi.org/10.1098/rspb.2019.1356 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2019.1356 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2019.1356 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 286, issue 1910, page 20191356 ISSN 0962-8452 1471-2954 journal-article 2019 crroyalsociety https://doi.org/10.1098/rspb.2019.1356 2024-07-08T04:26:36Z Field experiments where parasites are removed through treatment and contaminant levels in host tissues are recorded can provide insight into the combined effects of parasitism and contaminants in wild populations. In 2013 and 2014, we treated northern common eider ducks ( Somateria mollissima ) arriving at a breeding colony with either a broad-spectrum antihelminthic (PANACUR ® ) or distilled water, and measured their blood lead (Pb) levels. Breeding propensity and clutch sizes were inversely related to Pb in both treatment groups. In comparison, a negative effect of Pb on resight probability the following year was observed only in the anti-parasitic treatment (APT) group. These contrasting patterns suggest a long-term benefit to survival of intestinal parasitism in eiders experiencing Pb exposure. The arrival date of hens explained some, but not all, of the effects of Pb. We weigh the merits of different hypotheses in explaining our results, including protective bioaccumulation of Pb by parasites, condition-linked thresholds to costly reproduction and the direct effects of APT on eider health. We conclude that variation in helminth parasitism influences survival in this migratory bird in counterintuitive ways. Article in Journal/Newspaper Common Eider Somateria mollissima The Royal Society Proceedings of the Royal Society B: Biological Sciences 286 1910 20191356 |
institution |
Open Polar |
collection |
The Royal Society |
op_collection_id |
crroyalsociety |
language |
English |
description |
Field experiments where parasites are removed through treatment and contaminant levels in host tissues are recorded can provide insight into the combined effects of parasitism and contaminants in wild populations. In 2013 and 2014, we treated northern common eider ducks ( Somateria mollissima ) arriving at a breeding colony with either a broad-spectrum antihelminthic (PANACUR ® ) or distilled water, and measured their blood lead (Pb) levels. Breeding propensity and clutch sizes were inversely related to Pb in both treatment groups. In comparison, a negative effect of Pb on resight probability the following year was observed only in the anti-parasitic treatment (APT) group. These contrasting patterns suggest a long-term benefit to survival of intestinal parasitism in eiders experiencing Pb exposure. The arrival date of hens explained some, but not all, of the effects of Pb. We weigh the merits of different hypotheses in explaining our results, including protective bioaccumulation of Pb by parasites, condition-linked thresholds to costly reproduction and the direct effects of APT on eider health. We conclude that variation in helminth parasitism influences survival in this migratory bird in counterintuitive ways. |
author2 |
Environment and Climate Change Canada Arctic Institute of North America Institute for Wetland and Waterfowl Research, Ducks Unlimited Canada W. Garfield Weston Foundation Indigenous and Northern Affairs Canada Canada Research Chairs Natural Sciences and Engineering Research Council of Canada Northern Scientific Training Program |
format |
Article in Journal/Newspaper |
author |
Morrill, A. Provencher, J. F. Gilchrist, H. G. Mallory, M. L. Forbes, M. R. |
spellingShingle |
Morrill, A. Provencher, J. F. Gilchrist, H. G. Mallory, M. L. Forbes, M. R. Anti-parasite treatment results in decreased estimated survival with increasing lead (Pb) levels in the common eider Somateria mollissima |
author_facet |
Morrill, A. Provencher, J. F. Gilchrist, H. G. Mallory, M. L. Forbes, M. R. |
author_sort |
Morrill, A. |
title |
Anti-parasite treatment results in decreased estimated survival with increasing lead (Pb) levels in the common eider Somateria mollissima |
title_short |
Anti-parasite treatment results in decreased estimated survival with increasing lead (Pb) levels in the common eider Somateria mollissima |
title_full |
Anti-parasite treatment results in decreased estimated survival with increasing lead (Pb) levels in the common eider Somateria mollissima |
title_fullStr |
Anti-parasite treatment results in decreased estimated survival with increasing lead (Pb) levels in the common eider Somateria mollissima |
title_full_unstemmed |
Anti-parasite treatment results in decreased estimated survival with increasing lead (Pb) levels in the common eider Somateria mollissima |
title_sort |
anti-parasite treatment results in decreased estimated survival with increasing lead (pb) levels in the common eider somateria mollissima |
publisher |
The Royal Society |
publishDate |
2019 |
url |
http://dx.doi.org/10.1098/rspb.2019.1356 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2019.1356 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2019.1356 |
genre |
Common Eider Somateria mollissima |
genre_facet |
Common Eider Somateria mollissima |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 286, issue 1910, page 20191356 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2019.1356 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
286 |
container_issue |
1910 |
container_start_page |
20191356 |
_version_ |
1809905990373474304 |