An Experimental Examination of Nest‐Site Segregation by Two Peromyscus Species

Dooley, James; Dueser, Raymond D.

doi:10.2307/1940330

Cited by 16 publications

(6 citation statements)

References 28 publications

(41 reference statements)

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“…For herbaceous ecotones, competition effects were found by Busch and Kravetz (1992), and by Thompson and Fox (1993). For wooded areas of temperate regions, most removal experiments (Montgomery 1981, Gilbert and Krebs 1984, Wolff and Dueser 1986, Turner and Grant 1987, Scott and Dueser 1992 found no or slight competition within the rodent community, but others (Sekijima andSone 1994, Dooley andDueser 1996) did.…”

Section: Introductionmentioning

confidence: 95%

Asymmetrical competition between the bank vole and the wood mouse, a removal experiment

Fasola¹,

Canova²

2000

Acta Theriol.

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Asymmetrical competition between the bank vole and the wood mouse, a removal experiment Mauro FASOLA and Luca CANOVA Fasola M. and Canova L. 2000. Asymmetrical competition between the bank vole and the wood mouse, a removal experiment. Acta Theriologica 45: 353-365.Experimental removal was conducted to test interspecific competition between the wood mouse Apodemus sylvaticus (Linnaeus, 1758) and the bank vole Clethrionomys glareolus (Schreber, 1780) that dominate the rodent communities in the forested biotopes through most of central Europe. Population density, body mass, reproductive condition, and habitat use were compared among two experimental sites (where one of the species had been removed) and one control site. The 5-year-study included pre--removal, removal, and post-removal periods. Reproductive condition was not affected by the density of the competitor or the conspecifics. Also, we did not detected any habitat shift that could be related to competitive release. However, the removal of wood mice strongly affected the population density of bank voles, but the removal of bank voles affected density of wood mice only slightly. Thus, we conclude that the competitive effect was asymmetrical.

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Section: Introductionmentioning

confidence: 95%

Asymmetrical competition between the bank vole and the wood mouse, a removal experiment

Fasola¹,

Canova²

2000

Acta Theriol.

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“…The white-footed mouse (Peromyscus leucopus noveboracensis) and woodland deer mouse (P. maniculatus gracilis) are abundant rodents that are syntopic throughout forests in midwestern and eastern North America (Figure 1a,b; Wolff, Dueser, & Berry, 1985). Both species increase with masting (Elias, Witham, & Hunter, 2004;Falls, Falls, & Fryxell, 2007) and have long been used as models for studying resource use (Davidson & Morris, 2001;Shaner, Bowers, & Macko, 2007) and competition (Dooley & Dueser, 1990) because they have similar morphology and habitat affinities (Stephens, Anderson, Wendt, & Meece, 2014;Wolff, 1996a). Additionally, P. leucopus and P. maniculatus use similar food resources in syntopy and are thought to be dietary generalists (Hamilton, 1941;Wolff et al, 1985), although Cramer (2014) found that they have different selection preferences for maple seeds (Acer spp.)…”

Section: Introductionmentioning

confidence: 99%

Pulsed resource availability changes dietary niche breadth and partitioning between generalist rodent consumers

Stephens

Hobbie

Lee

et al. 2019

Ecology and Evolution

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Identifying the mechanisms that structure niche breadth and overlap between species is important for determining how species interact and assessing their functional role in an ecosystem. Without manipulative experiments, assessing the role of foraging ecology and interspecific competition in structuring diet is challenging. Systems with regular pulses of resources act as a natural experiment to investigate the factors that influence the dietary niches of consumers. We used natural pulses of mast‐fruiting of American beech (Fagus grandifolia) to test whether optimal foraging or competition structure the dietary niche breadth and overlap between two congener rodent species (Peromyscus leucopus and P. maniculatus), both of which are generalist consumers. We reconstructed diets seasonally over a 2‐year period using stable isotope analysis (δ13C, δ15N) of hair and of potential dietary items and measured niche dynamics using standard ellipse area calculated within a Bayesian framework. Changes in niche breadth were generally consistent with predictions of optimal foraging theory, with both species consuming more beechnuts (a high‐quality food resource) and having a narrower niche breadth during masting seasons compared to nonmasting seasons when dietary niches expanded and more fungi (a low‐quality food source) were consumed. In contrast, changes in dietary niche overlap were consistent with competition theory, with higher diet overlap during masting seasons than during nonmasting seasons. Overall, dietary niche dynamics were closely tied to beech masting, underscoring that food availability influences competition. Diet plasticity and niche partitioning between the two Peromyscus species may reflect differences in foraging strategies, thereby reducing competition when food availability is low. Such dietary shifts may have important implications for changes in ecosystem function, including the dispersal of fungal spores.

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“…Daytime refuges are important resources for the survival of nocturnal mammals, providing them with protection from environmental conditions and predators, and security for their offspring. Thus, the availability of such refuges may be a limiting factor affecting the distribution and status of populations (Dooley and Dueser, 1990).…”

Section: Introductionmentioning

confidence: 99%

Daytime Habitat Selection by Introduced Eastern CottontailSylvilagus floridanusand Native European HareLepus europaeusin Northern Italy

Bertolino¹,

Montezemolo²,

Perrone³

2011

Zoological Science

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We used radiotelemetry to investigate resting sites habitat selection by introduced eastern cottontail (Sylvilagus floridanus) and native European hare (Lepus europaeus) under sympatric conditions. We tracked 24 hares and 34 cottontails in a protected area of northwestern Italy. Hares were found in different sites every week, while cottontails used the same site for two weeks, and occasionally for longer. It is supposed that this periodic nest switching reduces the risk of predation and parasitism. Hares and cottontails forms were located in different habitats and characterized by dense vegetation cover near the ground. This cover increased from winter to summer in both species, while in autumn it continued to increase in cottontails only, and decreased in hares. Cottontails selected shrubby habitats near the river, and avoided crop fields in all seasons. Hares were more adaptive in their search, using high herbs and shrubs all year round, wheat fields in spring, maize in spring and summer, and stubbles in winter. Arguably, partial niche differentiation is necessary to allow the coexistence of similar species. In our study area, hares and cottontails differentiated in the use of resting sites habitats, presumably so as not to compete in this part of their ecological niche.

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An Experimental Examination of Nest‐Site Segregation by Two Peromyscus Species

Cited by 16 publications

References 28 publications

Asymmetrical competition between the bank vole and the wood mouse, a removal experiment

Asymmetrical competition between the bank vole and the wood mouse, a removal experiment

Pulsed resource availability changes dietary niche breadth and partitioning between generalist rodent consumers

Daytime Habitat Selection by Introduced Eastern CottontailSylvilagus floridanusand Native European HareLepus europaeusin Northern Italy

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