Seasonal Pattern of Prevalence and Excretion of Eggs of Baylisascaris transfuga in the Brown Bear (Ursus arctos)
The seasonal dynamics of the prevalence, abundance, and mean intensity of egg excretion by the nematode parasite Baylisascaris transfuga in the European brown bear (Ursus arctos) were monitored relative to environmental factors (mean temperature, humidity, and temperature) over three years. The prev...
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ftmdpi:oai:mdpi.com:/2076-2615/10/12/2428/ 2023-08-20T04:10:16+02:00 Seasonal Pattern of Prevalence and Excretion of Eggs of Baylisascaris transfuga in the Brown Bear (Ursus arctos) Ladislav Molnár Alžbeta Königová Peter Major Zuzana Vasilková Martina Tomková Marián Várady agris 2020-12-18 application/pdf https://doi.org/10.3390/ani10122428 EN eng Multidisciplinary Digital Publishing Institute Wildlife https://dx.doi.org/10.3390/ani10122428 https://creativecommons.org/licenses/by/4.0/ Animals; Volume 10; Issue 12; Pages: 2428 European brown bear Baylisascaris transfuga prevalence seasonal dynamics Text 2020 ftmdpi https://doi.org/10.3390/ani10122428 2023-08-01T00:41:40Z The seasonal dynamics of the prevalence, abundance, and mean intensity of egg excretion by the nematode parasite Baylisascaris transfuga in the European brown bear (Ursus arctos) were monitored relative to environmental factors (mean temperature, humidity, and temperature) over three years. The prevalence, abundance, and mean intensity of egg excretion tended to increase from spring to autumn throughout the monitoring period. The seasonal prevalence (84.2–90.6%), abundance (470.2–545.3 eggs per gramme (EPG) of faeces), mean intensity of excretion (558.3–602.1 EPG), and number of eggs (1150 EPG) were highest in autumn. The prevalence of eggs (up to 48.5%), abundance (37.8–60.6 EPG), and mean intensity of excretion (94.4–125.0 EPG) were high in winter, despite the period of hibernation. The seasonal dynamics of B. transfuga abundance in bears, the mean temperature between spring and autumn, and the seasonal trend of increase in intensity of egg excretion with temperature from winter to summer were interrelated. Abundance differed significantly between winter and autumn, spring and autumn, and summer and autumn (p < 0.0001) in all years and between spring and summer in 2016 (p < 0.005), 2017 (p < 0.05). B. transfuga abundance differed significantly between the seasons over the three years only in spring (p ≤ 0.0001). Text Ursus arctos MDPI Open Access Publishing Animals 10 12 2428 |
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MDPI Open Access Publishing |
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English |
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European brown bear Baylisascaris transfuga prevalence seasonal dynamics |
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European brown bear Baylisascaris transfuga prevalence seasonal dynamics Ladislav Molnár Alžbeta Königová Peter Major Zuzana Vasilková Martina Tomková Marián Várady Seasonal Pattern of Prevalence and Excretion of Eggs of Baylisascaris transfuga in the Brown Bear (Ursus arctos) |
topic_facet |
European brown bear Baylisascaris transfuga prevalence seasonal dynamics |
description |
The seasonal dynamics of the prevalence, abundance, and mean intensity of egg excretion by the nematode parasite Baylisascaris transfuga in the European brown bear (Ursus arctos) were monitored relative to environmental factors (mean temperature, humidity, and temperature) over three years. The prevalence, abundance, and mean intensity of egg excretion tended to increase from spring to autumn throughout the monitoring period. The seasonal prevalence (84.2–90.6%), abundance (470.2–545.3 eggs per gramme (EPG) of faeces), mean intensity of excretion (558.3–602.1 EPG), and number of eggs (1150 EPG) were highest in autumn. The prevalence of eggs (up to 48.5%), abundance (37.8–60.6 EPG), and mean intensity of excretion (94.4–125.0 EPG) were high in winter, despite the period of hibernation. The seasonal dynamics of B. transfuga abundance in bears, the mean temperature between spring and autumn, and the seasonal trend of increase in intensity of egg excretion with temperature from winter to summer were interrelated. Abundance differed significantly between winter and autumn, spring and autumn, and summer and autumn (p < 0.0001) in all years and between spring and summer in 2016 (p < 0.005), 2017 (p < 0.05). B. transfuga abundance differed significantly between the seasons over the three years only in spring (p ≤ 0.0001). |
format |
Text |
author |
Ladislav Molnár Alžbeta Königová Peter Major Zuzana Vasilková Martina Tomková Marián Várady |
author_facet |
Ladislav Molnár Alžbeta Königová Peter Major Zuzana Vasilková Martina Tomková Marián Várady |
author_sort |
Ladislav Molnár |
title |
Seasonal Pattern of Prevalence and Excretion of Eggs of Baylisascaris transfuga in the Brown Bear (Ursus arctos) |
title_short |
Seasonal Pattern of Prevalence and Excretion of Eggs of Baylisascaris transfuga in the Brown Bear (Ursus arctos) |
title_full |
Seasonal Pattern of Prevalence and Excretion of Eggs of Baylisascaris transfuga in the Brown Bear (Ursus arctos) |
title_fullStr |
Seasonal Pattern of Prevalence and Excretion of Eggs of Baylisascaris transfuga in the Brown Bear (Ursus arctos) |
title_full_unstemmed |
Seasonal Pattern of Prevalence and Excretion of Eggs of Baylisascaris transfuga in the Brown Bear (Ursus arctos) |
title_sort |
seasonal pattern of prevalence and excretion of eggs of baylisascaris transfuga in the brown bear (ursus arctos) |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/ani10122428 |
op_coverage |
agris |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_source |
Animals; Volume 10; Issue 12; Pages: 2428 |
op_relation |
Wildlife https://dx.doi.org/10.3390/ani10122428 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/ani10122428 |
container_title |
Animals |
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10 |
container_issue |
12 |
container_start_page |
2428 |
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1774724339272253440 |