scholarly journals Genetic diversity of ranch and feral American mink (Neovison vison Schreber, 1777) in Poland in relation to the natural population of the species

2019 ◽  
Vol 149 (1) ◽  
Author(s):  
Beata Horecka

In Poland, the number of feral mink (Neovison vison) and the size of the fur-farming industry are growing. There is a concern that the gene pool of the wild living mink is being infiltrated by that of ranch animals. Three populations were analyzed: Polish ranch mink, feral animals from Poland, and, they were for the first time in Poland, compared with wild individuals from North America. The breeding history of the species and the main ways of introducing the American mink into new areas on different continents were considered. The final research included analysis of the polymorphism of 12 Mustelidae-specific microsatellite loci. It showed a similar level of genetic diversity in all the investigated populations. The research revealed the existence of geographically-specific subpopulations of feral mink in Poland, characterized by different origins, and indicated a small degree of introgression between Polish ranch and wild living populations in the past although the assignment simulation makes it clear that they are genetically distinct groups. The results are in accordance with previously reported models of colonization of Poland by this species and help to explain the influence of anthropogenic factors on the current status of this invasive species. Mixing of two separate genetic pools from the native range in Poland is a newly identified factor, shaping the genetic structure of ranch and feral populations of Neovison vison.

Mammal Review ◽  
2020 ◽  
Vol 50 (2) ◽  
pp. 157-169 ◽  
Author(s):  
Lauren A. Harrington ◽  
Johnny Birks ◽  
Paul Chanin ◽  
Darren Tansley

2017 ◽  
Vol 95 (6) ◽  
pp. 443-451 ◽  
Author(s):  
Jeff Bowman ◽  
Kaela Beauclerc ◽  
A. Hossain Farid ◽  
Heather Fenton ◽  
Cornelya F.C. Klütsch ◽  
...  

Farmed American mink (Neovison vison (Schreber, 1777)) pose a risk to biodiversity owing to escape and release from farms. Feral mink may affect native species in locations where American mink are not endemic, such as Europe. In contrast, escaping domestic mink may hybridize with wild mink in North America, leading to introgression of domestic traits via hybrid-mediated gene flow. We tested this idea in eastern Canada, which has a history of mink farming. We sampled known domestic and free-ranging mink, and profiled 508 individuals at 15 microsatellite loci. We found that 33% of free-ranging mink were either escaped domestic individuals, domestic–wild hybrids, or were introgressed to domestic or wild parental groups. The greatest prevalence of free-ranging domestic, hybrid, or introgressed mink (59%) occurred in Nova Scotia, which also had the most mink farms. Historic (1980s or earlier) mink sampled from museums had higher allelic richness and private allelic richness than contemporary wild mink. Domestic mink are artificially selected for traits desired by farmers, and as such, introgression with wild mink may lead to a loss of local adaptation. Our findings demonstrate that continued escape and release of mink could pose risks to the maintenance of genetic integrity in wild mink.


2020 ◽  
Vol 13 (10) ◽  
pp. 2610-2629
Author(s):  
Kimberley Y. Morris ◽  
Jeff Bowman ◽  
Albrecht Schulte‐Hostedde ◽  
Paul J. Wilson

2017 ◽  
Vol 19 (9) ◽  
pp. 2663-2673 ◽  
Author(s):  
Karla García ◽  
Yolanda Melero ◽  
Santiago Palazón ◽  
Joaquim Gosálbez ◽  
Jose Castresana

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 472
Author(s):  
Lina Zhang ◽  
Yan Hua ◽  
Shichao Wei

Genetic characteristics play an important role in alien species for achieving high adaptation and rapid evolution in a new environment. The American mink (Neovison vison) is one of the best-known and most widespread invasive species that has successfully invaded the Eurasian mainland over quite a short period, including most parts of northeastern China. However, genetic information on farmed and feral American mink populations introduced in China is completely lacking. In this study, we combined mitochondrial DNA sequences and polymorphic microsatellites to examine the genetic divergence and genetic diversity of farmed and feral American mink populations. Our results suggest that there is admixture of individuals of different genetic characteristics between farmed and feral populations of mink. Furthermore, the genetic diversity of both farmed and feral American mink populations was high, and no bottleneck or population expansion was detected in most of the populations. These findings not only highlight the genetic characteristics of American mink in northeastern China but also contribute to the general understanding of the invasiveness of farmed species.


Life ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 119
Author(s):  
Adrianna Kilikowska ◽  
Monika Mioduchowska ◽  
Anna Wysocka ◽  
Agnieszka Kaczmarczyk-Ziemba ◽  
Joanna Rychlińska ◽  
...  

Mussels of the family Unionidae are important components of freshwater ecosystems. Alarmingly, the International Union for Conservation of Nature and Natural Resources Red List of Threatened Species identifies almost 200 unionid species as extinct, endangered, or threatened. Their decline is the result of human impact on freshwater habitats, and the decrease of host fish populations. The Thick Shelled River Mussel Unio crassus Philipsson, 1788 is one of the examples that has been reported to show a dramatic decline of populations. Hierarchical organization of riverine systems is supposed to reflect the genetic structure of populations inhabiting them. The main goal of this study was an assessment of the U. crassus genetic diversity in river ecosystems using hierarchical analysis. Different molecular markers, the nuclear ribosomal internal transcribed spacer ITS region, and mitochondrial DNA genes (cox1 and ndh1), were used to examine the distribution of U. crassus among-population genetic variation at multiple spatial scales (within rivers, among rivers within drainages, and between drainages of the Neman and Vistula rivers). We found high genetic structure between both drainages suggesting that in the case of the analyzed U. crassus populations we were dealing with at least two different genetic units. Only about 4% of the mtDNA variation was due to differences among populations within drainages. However, comparison of population differentiation within drainages for mtDNA also showed some genetic structure among populations within the Vistula drainage. Only one haplotype was shared among all Polish populations whereas the remainder were unique for each population despite the hydrological connection. Interestingly, some haplotypes were present in both drainages. In the case of U. crassus populations under study, the Mantel test revealed a relatively strong relationship between genetic and geographical distances. However, in detail, the pattern of genetic diversity seems to be much more complicated. Therefore, we suggest that the observed pattern of U. crassus genetic diversity distribution is shaped by both historical and current factors i.e. different routes of post glacial colonization and history of drainage systems, historical gene flow, and more recent habitat fragmentation due to anthropogenic factors.


Author(s):  
Rakhshan Kamran

Abstract In December 2007, the House of Commons unanimously supported Jordan’s Principle, a commitment that all First Nations children would receive the health care products, social services, and supports, and education they need, in memory of Jordan River Anderson. However, the process of applying for Jordan’s Principle was convoluted and not transparent, leaving several cases not being responded to. The Canadian Human Rights Tribunal found the definition and implementation of Jordan’s Principle to be racist and discriminatory in 2016, ordering the Canadian government to make immediate changes. Failing to make changes to Jordan’s Principle, the Canadian government was found to be noncompliant with the Canadian Human Rights Tribunal orders in 2018. This article provides one case example of Jordan’s Principle that was not responded to, details on the current status of Jordan’s Principle, and information on the recent implementation of the Act respecting First Nations, Inuit and Métis children, youth and families.


2021 ◽  
Vol 19 (5) ◽  
pp. 266-267
Author(s):  
Lauren A Harrington ◽  
María Díez‐León ◽  
Asunción Gómez ◽  
Andrew Harrington ◽  
David W Macdonald ◽  
...  
Keyword(s):  

Insects ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 641
Author(s):  
Julio Chávez-Galarza ◽  
Ruth López-Montañez ◽  
Alejandra Jiménez ◽  
Rubén Ferro-Mauricio ◽  
Juan Oré ◽  
...  

Mitochondrial DNA variations of Peruvian honey bee populations were surveyed by using the tRNAleu-cox2 intergenic region. Only two studies have characterized these populations, indicating the presence of Africanized honey bee colonies in different regions of Peru and varied levels of Africanization, but the current status of its genetic diversity is unknown. A total of 512 honey bee colonies were sampled from three regions to characterize them. Our results revealed the presence of European and African haplotypes: the African haplotypes identified belong to sub-lineage AI (13) and sub-lineage AIII (03), and the European haplotypes to lineages C (06) and M (02). Of 24 haplotypes identified, 15 new sequences are reported here (11 sub-lineage AI, 2 sub-lineage AIII, and 2 lineage M). Peruvian honey bee populations presented a higher proportion from African than European haplotypes. High proportions of African haplotype were reported for Piura and Junín, unlike Lima, which showed more European haplotypes from lineage C. Few colonies belonging to lineage M would represent accidental purchase or traces of the introduction into Peru in the 19th century.


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