Raptors are still affected by environmental pollutants: Greenlandic Peregrines will not have normal eggshell thickness until 2034
Abstract The DDT-induced effects, eggshell thinning and breeding failure in Peregrine Falcon (Falco peregrinus) populations were reverted with restrictions on the use of the compound from the 1970s, and in most studied populations, the eggshell thickness is back to normal. In Greenland, a previous s...
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crdegruyter:10.1515/orhu-2018-0026 2024-03-03T08:44:13+00:00 Raptors are still affected by environmental pollutants: Greenlandic Peregrines will not have normal eggshell thickness until 2034 Falk, Knud Møller, Søren Rigét, Frank F. Sørensen, Peter B. Vorkamp, Katrin 2018 http://dx.doi.org/10.1515/orhu-2018-0026 http://content.sciendo.com/view/journals/orhu/26/2/article-p171.xml https://www.sciendo.com/article/10.1515/orhu-2018-0026 en eng Walter de Gruyter GmbH http://creativecommons.org/licenses/by-nc-nd/4.0 Ornis Hungarica volume 26, issue 2, page 171-176 ISSN 2061-9588 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2018 crdegruyter https://doi.org/10.1515/orhu-2018-0026 2024-02-05T10:21:13Z Abstract The DDT-induced effects, eggshell thinning and breeding failure in Peregrine Falcon (Falco peregrinus) populations were reverted with restrictions on the use of the compound from the 1970s, and in most studied populations, the eggshell thickness is back to normal. In Greenland, a previous study of eggshell thinning in Peregrines found that shells had not yet reached pre-DDT levels. In this study, we extend the time series and reinterpret shell thinning data for 196 clutches covering a 45-year time span (1972–2017). There was a significant (P<0.001) increase in the eggshell thickness of 0.23% per year. This corresponds to a change in eggshell thinning from 14.5% to 5.4% in 2017 compared to the pre-DDT mean. With the current rate of change, pre-DDT shell thickness is predicted to be reached around the year 2034. However, a few clutches are still below the critical limit. The relatively slower recovery of the shell thickness in the Greenland population is likely indicative of the slower phasing out of DDT in the Greenlandic Peregrines’ wintering grounds in Latin America. The shell thinning in the Greenlandic population probably never crossed the 17% threshold associated with population declines, contrary to the populations in many other parts of the world. Article in Journal/Newspaper Falco peregrinus Greenland greenlandic peregrine falcon De Gruyter Greenland Ornis Hungarica 26 2 171 176 |
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Open Polar |
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De Gruyter |
op_collection_id |
crdegruyter |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Falk, Knud Møller, Søren Rigét, Frank F. Sørensen, Peter B. Vorkamp, Katrin Raptors are still affected by environmental pollutants: Greenlandic Peregrines will not have normal eggshell thickness until 2034 |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Abstract The DDT-induced effects, eggshell thinning and breeding failure in Peregrine Falcon (Falco peregrinus) populations were reverted with restrictions on the use of the compound from the 1970s, and in most studied populations, the eggshell thickness is back to normal. In Greenland, a previous study of eggshell thinning in Peregrines found that shells had not yet reached pre-DDT levels. In this study, we extend the time series and reinterpret shell thinning data for 196 clutches covering a 45-year time span (1972–2017). There was a significant (P<0.001) increase in the eggshell thickness of 0.23% per year. This corresponds to a change in eggshell thinning from 14.5% to 5.4% in 2017 compared to the pre-DDT mean. With the current rate of change, pre-DDT shell thickness is predicted to be reached around the year 2034. However, a few clutches are still below the critical limit. The relatively slower recovery of the shell thickness in the Greenland population is likely indicative of the slower phasing out of DDT in the Greenlandic Peregrines’ wintering grounds in Latin America. The shell thinning in the Greenlandic population probably never crossed the 17% threshold associated with population declines, contrary to the populations in many other parts of the world. |
format |
Article in Journal/Newspaper |
author |
Falk, Knud Møller, Søren Rigét, Frank F. Sørensen, Peter B. Vorkamp, Katrin |
author_facet |
Falk, Knud Møller, Søren Rigét, Frank F. Sørensen, Peter B. Vorkamp, Katrin |
author_sort |
Falk, Knud |
title |
Raptors are still affected by environmental pollutants: Greenlandic Peregrines will not have normal eggshell thickness until 2034 |
title_short |
Raptors are still affected by environmental pollutants: Greenlandic Peregrines will not have normal eggshell thickness until 2034 |
title_full |
Raptors are still affected by environmental pollutants: Greenlandic Peregrines will not have normal eggshell thickness until 2034 |
title_fullStr |
Raptors are still affected by environmental pollutants: Greenlandic Peregrines will not have normal eggshell thickness until 2034 |
title_full_unstemmed |
Raptors are still affected by environmental pollutants: Greenlandic Peregrines will not have normal eggshell thickness until 2034 |
title_sort |
raptors are still affected by environmental pollutants: greenlandic peregrines will not have normal eggshell thickness until 2034 |
publisher |
Walter de Gruyter GmbH |
publishDate |
2018 |
url |
http://dx.doi.org/10.1515/orhu-2018-0026 http://content.sciendo.com/view/journals/orhu/26/2/article-p171.xml https://www.sciendo.com/article/10.1515/orhu-2018-0026 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Falco peregrinus Greenland greenlandic peregrine falcon |
genre_facet |
Falco peregrinus Greenland greenlandic peregrine falcon |
op_source |
Ornis Hungarica volume 26, issue 2, page 171-176 ISSN 2061-9588 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0 |
op_doi |
https://doi.org/10.1515/orhu-2018-0026 |
container_title |
Ornis Hungarica |
container_volume |
26 |
container_issue |
2 |
container_start_page |
171 |
op_container_end_page |
176 |
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1792499700070350848 |