Svetimkraščio žinduolio ondatros (Ondatra zibethicus) paplitimas, genetinė įvairovė ir helmintai
The muskrat is an alien semi-aquatic mammal which was introduced to various regions around the world from North America. The aim of the study – to investigate the distribution, genetic diversity and helminths of alien mammal muskrat (Ondatra zibethicus). The evaluated distribution and the abundance...
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Format: | Doctoral or Postdoctoral Thesis |
Language: | Lithuanian English |
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Institutional Repository of Vytautas Magnus University
2019
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ftastulginskisun:oai:elaba:2182692 2023-05-15T17:01:10+02:00 Svetimkraščio žinduolio ondatros (Ondatra zibethicus) paplitimas, genetinė įvairovė ir helmintai The distribution, genetic diversity and helminths of alien mammal muskrat (Ondatra zibethicus) Skyrienė, Gintarė Paulauskas, Algimantas info:eu-repo/date/embargoEnd/2019-12-30 application/pdf https://vb.vdu.lt/VDU:ELABAETD2182692&prefLang=en_US lit eng lit eng Institutional Repository of Vytautas Magnus University https://vb.vdu.lt/object/elaba:2182692/2182692.pdf https://vb.vdu.lt/VDU:ELABAETD2182692&prefLang=en_US info:eu-repo/semantics/embargoedAccess muskrat distribution genetics helminths impact info:eu-repo/semantics/doctoralThesis 2019 ftastulginskisun 2021-12-16T00:12:23Z The muskrat is an alien semi-aquatic mammal which was introduced to various regions around the world from North America. The aim of the study – to investigate the distribution, genetic diversity and helminths of alien mammal muskrat (Ondatra zibethicus). The evaluated distribution and the abundance of muskrats showed that it are not the same, very varying in different years and falling significantly in the various water bodies in Lithuania. Therefore, the impact of muskrats on native species and communities, habitats and ecosystems are insignificant and localized. Until now, the attention to the genetic structure of this invasive animal was very little. The genetic analysis and genetic diversity of the population of muskrats was assessed for the first time in Lithuania. The genetic diversity was studied using the microsatellite DNA markers. This allowed for the evaluation that the genetic diversity was lower in Lithuania than Karelia (Russia) or native Canadian populations of muskrat. After the evaluation of helminthological analysis were determined that the muskrat has lost American origin parasites after the period of acclimatization. The comparison of the helminth community structure and infection rates of muskrat were determined that it were higher in the highest numerosity of muskrat’s abundance (in 1973-1975) to comparing the period than it significantly reduced (in 2001-2014). Investigated number of muskrats suggests that the helminthological impact of muskrat to humans and the environment is low. Doctoral or Postdoctoral Thesis karelia* ASU VL (VMU - Vytautas Magnus University Agriculture Academy Virtual Library) |
institution |
Open Polar |
collection |
ASU VL (VMU - Vytautas Magnus University Agriculture Academy Virtual Library) |
op_collection_id |
ftastulginskisun |
language |
Lithuanian English |
topic |
muskrat distribution genetics helminths impact |
spellingShingle |
muskrat distribution genetics helminths impact Skyrienė, Gintarė Svetimkraščio žinduolio ondatros (Ondatra zibethicus) paplitimas, genetinė įvairovė ir helmintai |
topic_facet |
muskrat distribution genetics helminths impact |
description |
The muskrat is an alien semi-aquatic mammal which was introduced to various regions around the world from North America. The aim of the study – to investigate the distribution, genetic diversity and helminths of alien mammal muskrat (Ondatra zibethicus). The evaluated distribution and the abundance of muskrats showed that it are not the same, very varying in different years and falling significantly in the various water bodies in Lithuania. Therefore, the impact of muskrats on native species and communities, habitats and ecosystems are insignificant and localized. Until now, the attention to the genetic structure of this invasive animal was very little. The genetic analysis and genetic diversity of the population of muskrats was assessed for the first time in Lithuania. The genetic diversity was studied using the microsatellite DNA markers. This allowed for the evaluation that the genetic diversity was lower in Lithuania than Karelia (Russia) or native Canadian populations of muskrat. After the evaluation of helminthological analysis were determined that the muskrat has lost American origin parasites after the period of acclimatization. The comparison of the helminth community structure and infection rates of muskrat were determined that it were higher in the highest numerosity of muskrat’s abundance (in 1973-1975) to comparing the period than it significantly reduced (in 2001-2014). Investigated number of muskrats suggests that the helminthological impact of muskrat to humans and the environment is low. |
author2 |
Paulauskas, Algimantas |
format |
Doctoral or Postdoctoral Thesis |
author |
Skyrienė, Gintarė |
author_facet |
Skyrienė, Gintarė |
author_sort |
Skyrienė, Gintarė |
title |
Svetimkraščio žinduolio ondatros (Ondatra zibethicus) paplitimas, genetinė įvairovė ir helmintai |
title_short |
Svetimkraščio žinduolio ondatros (Ondatra zibethicus) paplitimas, genetinė įvairovė ir helmintai |
title_full |
Svetimkraščio žinduolio ondatros (Ondatra zibethicus) paplitimas, genetinė įvairovė ir helmintai |
title_fullStr |
Svetimkraščio žinduolio ondatros (Ondatra zibethicus) paplitimas, genetinė įvairovė ir helmintai |
title_full_unstemmed |
Svetimkraščio žinduolio ondatros (Ondatra zibethicus) paplitimas, genetinė įvairovė ir helmintai |
title_sort |
svetimkraščio žinduolio ondatros (ondatra zibethicus) paplitimas, genetinė įvairovė ir helmintai |
publisher |
Institutional Repository of Vytautas Magnus University |
publishDate |
2019 |
url |
https://vb.vdu.lt/VDU:ELABAETD2182692&prefLang=en_US |
genre |
karelia* |
genre_facet |
karelia* |
op_relation |
https://vb.vdu.lt/object/elaba:2182692/2182692.pdf https://vb.vdu.lt/VDU:ELABAETD2182692&prefLang=en_US |
op_rights |
info:eu-repo/semantics/embargoedAccess |
_version_ |
1766054228249280512 |