Using detailed ground counts from the Moray Firth to infer the proximate causes of the decline in UK common seal counts
Decreasing numbers of moulting common seals in Scotland have prompted concerns about the state of the population. Proximately, the observed declines could be due to changes in 1) fecundity, 2) mortality or 3) the timing of moult in relation to the aerial surveys. It is essential that the relative co...
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/8827ff32-6cc5-4738-b9ff-5dbdfffb90fd 2023-05-15T15:56:07+02:00 Using detailed ground counts from the Moray Firth to infer the proximate causes of the decline in UK common seal counts Matthiopoulos, Jason Mackey, B 2008 https://risweb.st-andrews.ac.uk/portal/en/researchoutput/using-detailed-ground-counts-from-the-moray-firth-to-infer-the-proximate-causes-of-the-decline-in-uk-common-seal-counts(8827ff32-6cc5-4738-b9ff-5dbdfffb90fd).html eng eng Unknown Publisher info:eu-repo/semantics/restrictedAccess Matthiopoulos , J & Mackey , B 2008 , Using detailed ground counts from the Moray Firth to infer the proximate causes of the decline in UK common seal counts . Unknown Publisher . book 2008 ftunstandrewcris 2022-06-02T07:39:24Z Decreasing numbers of moulting common seals in Scotland have prompted concerns about the state of the population. Proximately, the observed declines could be due to changes in 1) fecundity, 2) mortality or 3) the timing of moult in relation to the aerial surveys. It is essential that the relative contribution of these factors is evaluated in order to isolate the possible ultimate causes of the observed decline. We adapt a Bayesian model of UK common seal dynamics to enable it to fit detailed pupping and moulting data collected in the Morray Firth, Scotland. This work confirms that the decline is not a survey artifact. Furthermore, use of these more detailed data considerably improves the model’s ability to identify the possible demographic causes of the decline, resulting in only two alternative demographic scenarios. Book common seal University of St Andrews: Research Portal |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
description |
Decreasing numbers of moulting common seals in Scotland have prompted concerns about the state of the population. Proximately, the observed declines could be due to changes in 1) fecundity, 2) mortality or 3) the timing of moult in relation to the aerial surveys. It is essential that the relative contribution of these factors is evaluated in order to isolate the possible ultimate causes of the observed decline. We adapt a Bayesian model of UK common seal dynamics to enable it to fit detailed pupping and moulting data collected in the Morray Firth, Scotland. This work confirms that the decline is not a survey artifact. Furthermore, use of these more detailed data considerably improves the model’s ability to identify the possible demographic causes of the decline, resulting in only two alternative demographic scenarios. |
format |
Book |
author |
Matthiopoulos, Jason Mackey, B |
spellingShingle |
Matthiopoulos, Jason Mackey, B Using detailed ground counts from the Moray Firth to infer the proximate causes of the decline in UK common seal counts |
author_facet |
Matthiopoulos, Jason Mackey, B |
author_sort |
Matthiopoulos, Jason |
title |
Using detailed ground counts from the Moray Firth to infer the proximate causes of the decline in UK common seal counts |
title_short |
Using detailed ground counts from the Moray Firth to infer the proximate causes of the decline in UK common seal counts |
title_full |
Using detailed ground counts from the Moray Firth to infer the proximate causes of the decline in UK common seal counts |
title_fullStr |
Using detailed ground counts from the Moray Firth to infer the proximate causes of the decline in UK common seal counts |
title_full_unstemmed |
Using detailed ground counts from the Moray Firth to infer the proximate causes of the decline in UK common seal counts |
title_sort |
using detailed ground counts from the moray firth to infer the proximate causes of the decline in uk common seal counts |
publisher |
Unknown Publisher |
publishDate |
2008 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/using-detailed-ground-counts-from-the-moray-firth-to-infer-the-proximate-causes-of-the-decline-in-uk-common-seal-counts(8827ff32-6cc5-4738-b9ff-5dbdfffb90fd).html |
genre |
common seal |
genre_facet |
common seal |
op_source |
Matthiopoulos , J & Mackey , B 2008 , Using detailed ground counts from the Moray Firth to infer the proximate causes of the decline in UK common seal counts . Unknown Publisher . |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766391600744759296 |