Investigating the effects of forest structure on the small mammal community in frequent-fire coniferous forests using capture-recapture models for stratified populations

Sollmann, Rahel; White, Angela M.; Gardner, Beth; Manley, Patricia N.

doi:10.1016/j.mambio.2015.03.002

Cited by 34 publications

(9 citation statements)

References 53 publications

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“…For each of the target species, we considered consistent site‐specific divergences from the average adult sex ratio (male:female), juvenile to adult ratio (juvenile:adult), and average adult body mass (either the highest or lowest among all years) as evidence of an abnormal population structure, which might reflect differences in habitat quality (Greenberg et al , Robertson and Hutto , Sollmann et al ). Species‐specific adult sex ratios were the number of known adult males divided by the number of known adult females caught on each site within a year, and juvenile to adult ratios were the number of known juveniles divided by the number of known adults.…”

Section: Methodsmentioning

confidence: 99%

Abundance and ecological associations of small mammals

et al. 2019

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Effective conservation and management of small mammals require knowledge of the population dynamics of co-occurring species. We estimated the abundances, autocorrelations, and spatiotemporal associations of 4 small-mammal species from 2011-2016 using live-trapping mark-recapture methods on 9 sites across elevation and canopy openness gradients of a late-successional forest in the H. J. Andrews Experimental Forest, on the west slope of the Oregon Cascades. We also quantified species-specific spatial variation in adult sex ratios and body mass. We used Huggins closed capture models to estimate siteand year-specific abundances of 4 target species: Humboldt's flying squirrels (Glaucomys oregonensis), Townsend's chipmunks (Neotamias townsendii), western red-backed voles (Myodes californicus), and deer mice (Peromyscus maniculatus). We estimated the temporal autocorrelations among site-and species-specific abundance estimates and used generalized linear mixed effects models to investigate the effects of 7 spatiotemporal covariates on species-specific mean abundance estimates. Species-specific adult sex ratios, juvenile to adult ratios, and adult body masses were not widely variable among study sites. Abundance estimates varied by as much as 4-fold among years and 6-fold among sites. Humboldt's flying squirrel abundance was temporally autocorrelated at intervals of 1 and 5 years, Townsend's chipmunk abundance was temporally autocorrelated at intervals of 1-4 years, and western red-backed vole abundance was temporally autocorrelated at 1, 4, and 5 years. Mean fall abundance estimates were associated with elevation and climate and in some cases, canopy openness and berry-producing shrubs, but the direction of the association differed among species for some covariates. Our findings could provide additional management tools for smallmammal abundance objectives, and highlight the importance of careful covariate selection in studies using indices of small-mammal abundance. Ó

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Section: Methodsmentioning

confidence: 99%

Abundance and ecological associations of small mammals

et al. 2019

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“…Despite continued forest destruction in Uganda, few studies have directly examined the effects of disturbance on small mammal communities. Sollmann et al (2015) found forest structure to influence total abundance of species and abundance of some individual species. Some of the major disturbances in Afro-tropical forest ecosystems are human mediated (Obua et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Rodent species composition, relative abundance, and habitat association in the Mabira Central Forest Reserve, Uganda

Ssuuna

Makundi²,

Isabirye

et al. 2020

Journal of Vertebrate Biology

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“…The reduced vegetation complexity of closed-canopy forests may limit resources important to small mammals. Most studies show that forests with a greater percentage of tree cover harbour less abundant small mammal communities 44 . In the Sierra Nevada mountains in North America, small mammals showed a limited response to canopy thinning, reflecting the generalist habits of the common species in those forests, which may be a legacy of more than a century of human impacts generating a process of biotic homogenization via differential success of some native species over the others 45 .…”

Section: Discussionmentioning

confidence: 99%

“…Unlike rocks, woody debris is more ephemeral, and apparently it was less valued as a shelter resource (Table 3 ). Many studies show the importance of coarse woody debris as a quantitative habitat feature for forest small mammals 44 ; their value increases in the late decay stages 52 . Woody debris in mid-to-late decay state is often a suitable substrate for lichen and fungi, and can support a rich insect fauna 53 , all potential foods for omnivorous rodents and shrews.…”

Section: Discussionmentioning

confidence: 99%

Responses of small mammals to habitat characteristics in Southern Carpathian forests

Benedek

Sîrbu

Lazăr

2021

Sci Rep

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Compared to Northern Carpathians, the small mammal fauna of Southern Carpathian forests is poorly known, with no data on habitat use; our study seeks to fill this gap. To this end, we conducted a survey in the Southern Carpathians for five years, assessing habitat use by small mammals in forests along an elevational gradient. Trapping was done using live traps set in transects at elevations between 820 and 2040 m. For each transect we evaluated variables related to vegetation structure, habitat complexity, and geographical location. We considered abundance, species composition and species richness as response variables. The rodents Apodemus flavicollis and Myodes glareolus and the shrew Sorex araneus were common and dominant. Their abundance were positively correlated with tree cover, the best explanatory variable. Responses to other variables were mixed. The strong divergence in the relative habitat use by the three most abundant species may act as a mechanism that enables their coexistence as dominant species, exploiting the same wide range of habitat resources. Overall, habitat use in our study area was similar to that reported from Northern Carpathians, but we found also important differences probably caused by the differences in latitude and forest management practices.

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Investigating the effects of forest structure on the small mammal community in frequent-fire coniferous forests using capture-recapture models for stratified populations

Abstract: Please cite this article as: Sollmann, R., White, A.M., Gardner, B., Manley, P.N.,Investigating the effects of forest structure on the small mammal community in frequent-fire coniferous forests using capturerecapture models for stratified populations, Mammalian Biology (2015), http://dx.

Cited by 34 publications

References 53 publications

Abundance and ecological associations of small mammals

Abundance and ecological associations of small mammals

Rodent species composition, relative abundance, and habitat association in the Mabira Central Forest Reserve, Uganda

Responses of small mammals to habitat characteristics in Southern Carpathian forests

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