Is the eye lens method of age estimation reliable in voles?
We examined the reliability of laboratory-derived calibration curves for age determination of field individuals of the common vole, Microtus arvalis. The sex-specific calibration curves for age determination based on the relationship between eye lens mass and age derived in the laboratory were appli...
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ftczechacademysc:oai:kramerius.lib.cas.cz:uuid:e64462ed-3c17-a22b-693f-842b961ed514 2024-03-17T08:57:30+00:00 Is the eye lens method of age estimation reliable in voles? Jánová Eva Nesvadbová Jiřina Tkadlec Emil https://kramerius.lib.cas.cz/view/uuid:e64462ed-3c17-a22b-693f-842b961ed514 eng eng https://kramerius.lib.cas.cz/view/uuid:e64462ed-3c17-a22b-693f-842b961ed514 age calibration eye lens mass Microtus sexual differences article ftczechacademysc 2024-02-19T22:42:29Z We examined the reliability of laboratory-derived calibration curves for age determination of field individuals of the common vole, Microtus arvalis. The sex-specific calibration curves for age determination based on the relationship between eye lens mass and age derived in the laboratory were applied to a live-trapped field population of common vole. When comparing the individual’s age to the length of its trapping history, we found a slight tendency for underestimation of real age. These errors were observed slightly more in females than in males and in individuals captured over a longer time. This could mean that growth rates in captive animals, especially older ones, and in females are greater than those from the field. The month of first trapping has no effect on the presence of the error. We suggest that, in population studies with a special concern for ageing individuals over the whole life span, other methods should be examined, such as those measuring insoluble eye lens proteins or calibration curves based on more than one predictor. Article in Journal/Newspaper Common vole Microtus arvalis Czech Academy of Sciences: dKNAV |
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Open Polar |
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Czech Academy of Sciences: dKNAV |
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ftczechacademysc |
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English |
topic |
age calibration eye lens mass Microtus sexual differences |
spellingShingle |
age calibration eye lens mass Microtus sexual differences Jánová Eva Nesvadbová Jiřina Tkadlec Emil Is the eye lens method of age estimation reliable in voles? |
topic_facet |
age calibration eye lens mass Microtus sexual differences |
description |
We examined the reliability of laboratory-derived calibration curves for age determination of field individuals of the common vole, Microtus arvalis. The sex-specific calibration curves for age determination based on the relationship between eye lens mass and age derived in the laboratory were applied to a live-trapped field population of common vole. When comparing the individual’s age to the length of its trapping history, we found a slight tendency for underestimation of real age. These errors were observed slightly more in females than in males and in individuals captured over a longer time. This could mean that growth rates in captive animals, especially older ones, and in females are greater than those from the field. The month of first trapping has no effect on the presence of the error. We suggest that, in population studies with a special concern for ageing individuals over the whole life span, other methods should be examined, such as those measuring insoluble eye lens proteins or calibration curves based on more than one predictor. |
format |
Article in Journal/Newspaper |
author |
Jánová Eva Nesvadbová Jiřina Tkadlec Emil |
author_facet |
Jánová Eva Nesvadbová Jiřina Tkadlec Emil |
author_sort |
Jánová Eva |
title |
Is the eye lens method of age estimation reliable in voles? |
title_short |
Is the eye lens method of age estimation reliable in voles? |
title_full |
Is the eye lens method of age estimation reliable in voles? |
title_fullStr |
Is the eye lens method of age estimation reliable in voles? |
title_full_unstemmed |
Is the eye lens method of age estimation reliable in voles? |
title_sort |
is the eye lens method of age estimation reliable in voles? |
url |
https://kramerius.lib.cas.cz/view/uuid:e64462ed-3c17-a22b-693f-842b961ed514 |
genre |
Common vole Microtus arvalis |
genre_facet |
Common vole Microtus arvalis |
op_relation |
https://kramerius.lib.cas.cz/view/uuid:e64462ed-3c17-a22b-693f-842b961ed514 |
_version_ |
1793766684389015552 |