Introduced semiaquatic mammals in the Uvs Nuur Hollow (Current distribution and ecological vectors of naturalization)

Saveljev, Alexander P.; Shar, S.; Scopin, Alexey; Otgonbaatar, M.; Soloviev, V. A.; Putincev, N. I.; Lhamsuren, N.

doi:10.1134/s2075111715010051

Cited by 7 publications

(6 citation statements)

References 6 publications

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“…A small population of Sino‐Mongolian beavers survived on the Bulgan River in the extreme west of Mongolia and neighbouring Xinjiang in China. Local translocations of Bulgan beavers have taken place, to the Khovd (1959–85, 39 animals), the Tes (in 1985, 1988 and 2002, 37 animals), and to Voronezh (four, in 1962; Stubbe & Dawaa 1983, Samiya et al 2012, Saveljev et al 2015).…”

Section: History and Status Of Beaver Populations By Countrymentioning

confidence: 99%

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Population and distribution of beaversCastor fiberandCastor canadensisin Eurasia

Saveljev²,

2020

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A century ago, overhunting had reduced Eurasian beaver Castor fiber populations to c. 1200 animals in scattered refugia from France to Mongolia. Reintroductions and natural spread have since restored the species to large areas of its original range. Population has more than tripled since the first modern estimate in 1998; the minimum estimate is now c. 1.5 million. Range expansion 2000–2020 has been rapid, with large extensions in western and south‐central Europe, southern Russia, and west and central Siberia. Beavers are now re‐established in all countries of their former European range except for Portugal, Italy, and the southern Balkans; they occur broadly across Siberia to Mongolia, with scattered populations father east. About half of the world population lives in Russia. Populations appear to be mature in much of European Russia, Belarus, the Baltic States, and Poland. There is a significant population of North American beaver Castor canadensis in Finland and north‐west Russia. Most other 20th‐Century introductions of this species have become extinct or been removed. Recent DNA studies have improved understanding of Castor fiber population prehistory and history. Two clades, east and west, are extant; a third ‘Danube’ clade is extinct. Refugial populations were strongly bottlenecked, with loss of genetic diversity through genetic drift. Future range extension, and large increases in populations and in impacts on freshwater systems, can be expected. Beavers are now recolonising densely populated, intensely modified, low‐relief regions, such as England, the Netherlands, Belgium, and north‐west Germany. They will become much more common and widespread there in coming decades. As beavers are ecosystem engineers with profound effects on riparian habitats, attention to integrating beaver management into these landscapes using experience gained in other areas – before the rapid increase in population densities and impacts occurs – is recommended.

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Section: History and Status Of Beaver Populations By Countrymentioning

confidence: 99%

“…Native beavers are today found in three isolated populations: Bulgan, Khovd, and the Uvs Lake basin (includes the Tes River and adjacent small rivers in Mongolia and Russia). The total population is estimated at 600, of which the Tes population is the largest (Samiya 2013, Saveljev et al 2015).…”

Section: History and Status Of Beaver Populations By Countrymentioning

confidence: 99%

Population and distribution of beaversCastor fiberandCastor canadensisin Eurasia

Saveljev²,

2020

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“…As an invasive species, the muskrat’s role as a prey species may have far‐reaching ecological effects (Saveljev et al 2015, Castillo et al 2017) and economic impacts (Nentwig et al 2010). Native predators can benefit from new sources of food (Tornberg & Haapala 2013); however, the facilitative affect that introduced muskrats have on invasive predators, such as American mink in South America, can disrupt local food chains (Crego et al 2016).…”

Section: Resultsmentioning

confidence: 99%

How do muskratsOndatra zibethicusaffect ecosystems? A review of evidence

Bomske

Ahlers

2020

Mammal Review

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Muskrats Ondatra zibethicus are reported to have wide‐ranging effects on wetland habitats, sometimes earning them the labels ‘keystone species’ or ‘ecosystem engineers’. We conducted an extensive review of the scientific literature and evaluated evidence for muskrats as potential keystone species or ecosystem engineers, and more generally, their known impacts on wetland ecosystems. We identified 363 publications (peer‐reviewed articles, books, theses, and reports) regarding muskrats, 202 of which were in an ecological context. Only 6% (n = 13) of these explicitly considered muskrats as ecosystem engineers (n = 9) or keystone species (n = 4). Our review found that muskrat populations may have broad effects on both wetland flora and fauna. However, studies generally occurred over small spatiotemporal scales and used dissimilar methods and reporting, which limited our inference regarding muskrats’ influence on wetland ecosystems. Research explicitly identifying muskrats as ecosystem engineers or keystone species is limited, but published evidence suggests that muskrats may have an effect on plant species diversity and habitat heterogeneity, which in turn may influence other animal species. However, long‐term and experimental research is needed to uncover impacts that muskrats have on ecosystems.

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“…Muskrats from the Russia Federation came to Mongolia in or around the 1940's (Dash, 1967;Dash & Bold, 1968;Pan & Ye, 1992;Shar et al, 2013;Saveljev et al, 2015). Eregdendagva (1961) noted that since 1946 the species had spread widely in the water courses feeding into the Tsukh (Sukh), Khovd, Gatsaa, Khuder and Uyalga rivers.…”

Section: Resultsmentioning

confidence: 99%

Fifty years after introduction: muskrat Ondatra zibethicus population of Khar-Us Lake, Western Mongolia

Mogoltsog¹,

Shar²,

Saveljev³

2018

Rus.J.Theriol.

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Introduced semiaquatic mammals in the Uvs Nuur Hollow (Current distribution and ecological vectors of naturalization)

Cited by 7 publications

References 6 publications

Population and distribution of beaversCastor fiberandCastor canadensisin Eurasia

Population and distribution of beaversCastor fiberandCastor canadensisin Eurasia

How do muskratsOndatra zibethicusaffect ecosystems? A review of evidence

Fifty years after introduction: muskrat Ondatra zibethicus population of Khar-Us Lake, Western Mongolia

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