Habitat, Abundance, and Distribution of Six Species of Shrews in Manitoba

Wrigley, Robert E.; Dubois, John E.; Copland, Herbert W. R.

doi:10.2307/1380091

Cited by 69 publications

(42 citation statements)

References 18 publications

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“…However, this is unlikely to be important for several reasons: (1) different trapping efforts at particular points and habitat categories were taken into account by the standardisation of data on trapping success, (2) 72.5% of captures of all shrews were recorded during the 11 'regular' trapping sessions (in 1990-1992 and 1996) and only 27.5% during the remaining 8 sessions, and (3) in spite of variable trapping procedures, distinct interspecific differences in habitat preferences have been found in other studies (Spencer and Pettus 1966, Yalden et al 1973, Wrigley et al. 1979.…”

Section: Discussionmentioning

confidence: 99%

“…Throughout the distribution of the Soricidae, wet habitats are the most productive in terms of biomasses and densities of prey and they are inhabited by the highest densities and numbers of coexisting shrew species (Spencer and Pettus 1966, Brown 1967, Wrigley et al 1979, Schrôpfer 1990, Kirkland 1991, Shvarts and Demin 1994, Churchfield et al 1997). Therefore, it is possible that my study area included habitats which offered very rich resources and the shrews coexisted under weak competitive interactions.…”

Section: Interspecific Similaritiesmentioning

confidence: 99%

“…Shrews often display high levels of interspecific overlap of habitat niches (Spencer and Pettus 1966, Brown 1967, Wrigley et al 1979, Churchfield et al 1997, Castien and Gosalbez 1999. However, certain segregation of habitat niches is usually observed.…”

Section: Introductionmentioning

confidence: 99%

“…However, certain segregation of habitat niches is usually observed. It relied on selection of places differing with regard to the following microhabitat factors: density and type of plant cover, distance to water, soil wetness or water level, soil type or richness, litter layer, and quantity of woody debris (Spencer and Pettus 1966, Brown 1967, Hawes 1977, Wrigley et al 1979, Terry 1981, Neet and Hausser 1990, Sheftel 1994, Shvarts and Demin 1994, Dickman 1995, Lee 1995, Castien and Gosalbez 1999. In some cases separation of habitat optima or mutual habitat exclusion has been observed (Hawes 1977, Neet and Hausser 1990, Sheftel 1994.…”

Section: Introductionmentioning

confidence: 99%

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Habitat preferences of four sympatric species of shrews

Rychlik¹

2000

Acta Theriol.

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Habitat preferences were studied in a shrew community of two semiaquatic species, Neomys anomalus Cabrera, 1907 and N. fodiens (Pennant, 1771), and two terrestrial species, Sorex araneus Linnaeus, 1758 and S. minutus Linnaeus, 1766, in a study area (5600 m ) alongside a small stream in Białowieża Forest (E Poland). Preferences were estimated by relating frequency of captures with macro-and microhabitat characteristics of trapping points. Distance to the stream and ground wetness appeared to be more important than macrohabitat and plant cover in separation of habitat niches. N. fodiens was trapped at places significantly wetter and closer to the stream than the three other species, N. anomalus was captured at places wetter and closer to the stream than S. araneus and S. minutus was trapped closer to the stream than S. araneus. Habitat preferences of these species reflected vertical segregation in their foraging. The interspecific overlaps in habitat preferences were lowest between N. fodiens and the two Sorex species and highest between N. anomalus and S. araneus and between the two Sorex species. An inverse relationship between the breadths of the trophic and habitat niches of the shrews appeared: the greatest trophic specialist S. minutus had the broadest habitat niche, whereas the greatest trophic generalist N. fodiens had the narrowest habitat niche. High interspecific overlaps in habitat preferences and little overlaps in spatial distribution suggest that the separation of ecological niches of these four species in the study site reflects other mechanisms in addition to habitat preferences.

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Section: Discussionmentioning

confidence: 99%

Section: Interspecific Similaritiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Habitat preferences of four sympatric species of shrews

Rychlik¹

2000

Acta Theriol.

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“…Typically, shrews are found near water (e.g., Wrigley et al 1979;Doyle 1990), and they may occasionally enter the water, either intentionally or accidentally. Once in the water they are susceptible to predation by fish, or they may drown and later be scavenged.…”

mentioning

confidence: 99%

American Pygmy Shrew, <em>Sorex hoyi</em>, Consumed by an Arctic Grayling, <em>Thymallus arcticus</em>

et al. 2011

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Arctic Grayling, Thymallus arcticus, are rarely reported to consume small mammals. We report an American Pygmy Shrew, Sorex hoyi, consumed by an Arctic Grayling caught in southern Yukon, Canada. This is the first record of an American Pygmy Shrew being consumed by an Arctic Grayling, and it confirms that Arctic Grayling will consume shrews (Sorex spp.) when they are available. We suspect that the body size of prey is a limiting factor in Arctic Grayling consuming small mammals, with some species of shrews being small enough for Arctic Grayling to consume.

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Mammals and Wetlands

Fritzell¹

1988

The Ecology and Management of Wetlands

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Habitat, Abundance, and Distribution of Six Species of Shrews in Manitoba

Cited by 69 publications

References 18 publications

Habitat preferences of four sympatric species of shrews

Habitat preferences of four sympatric species of shrews

American Pygmy Shrew, <em>Sorex hoyi</em>, Consumed by an Arctic Grayling, <em>Thymallus arcticus</em>

Mammals and Wetlands

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