Influence of variable retention harvests on forest ecosystems: Plant and mammal responses up to 8 years post-harvest

Sullivan, Thomas P.; Sullivan, Druscilla S.; Lindgren, Pontus M.F.

doi:10.1016/j.foreco.2007.08.005

Cited by 49 publications

(34 citation statements)

References 55 publications

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“…Red-backed voles are known for their high water requirements and their preference for mesic habitats (Getz 1968;Morris 1996). The removal of canopy cover and soil disturbance from harvesting can reduce live moss cover relative to uncut stands (Deans et al 2003), and decreases in vole density following harvesting disturbance have been attributed to reductions in the availability of moist microhabitats (Sullivan et al 2008). Accordingly, the isodar intercept (equal to: b 0 ?…”

Section: Discussionmentioning

confidence: 99%

An appraisal of the fitness consequences of forest disturbance for wildlife using habitat selection theory

et al. 2010

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Isodar theory can help to unveil the fitness consequences of habitat disturbance for wildlife through an evaluation of adaptive habitat selection using patterns of animal abundance in adjacent habitats. By incorporating measures of disturbance intensity or variations in resource availability into fitness-density functions, we can evaluate the functional form of isodars expected under different disturbance-fitness relationships. Using this framework, we investigated how a gradient of forest harvesting disturbance and differences in resource availability influenced habitat quality for snowshoe hares (Lepus americanus) and red-backed voles (Myodes gapperi) using pairs of logged and uncut boreal forest. Isodars for both species had positive intercepts, indicating reductions to maximum potential fitness in logged stands. Habitat selection by hares depended on both conspecific density and differences in canopy cover between harvested and uncut stands. Fitness-density curves for hares in logged stands were predicted to shift from diverging to converging with those in uncut forest across a gradient of high to low disturbance intensity. Selection for uncut forests thus became less pronounced with increasing population size at low levels of logging disturbance. Voles responded to differences in moss cover between habitats which reflected moisture availability. Lower moss cover in harvested stands either reduced maximum potential fitness or increased the relative rate of decline in fitness with density. Differences in vole densities between harvested and uncut stands were predicted, however, to diminish as populations increased. Our findings underscore the importance of accounting for density-dependent behaviors when evaluating how changing habitat conditions influence animal distribution.

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Section: Discussionmentioning

confidence: 99%

An appraisal of the fitness consequences of forest disturbance for wildlife using habitat selection theory

et al. 2010

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“…Clear-cutting and forest fires caused a marked decline in the populations of this vole, possibly because of competition with Peromyscus spp. (Martell 1983a;Gliwicz and Glowacka 2000;Klenner and Sullivan 2003;Sullivan et al 2008).…”

Section: Natural Historymentioning

confidence: 99%

Population dynamics of red-backed voles (Myodes) in North America

Boonstra

Krebs

2011

Oecologia

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We review the population dynamics of red-backed voles (Myodes species) in North America, the main deciduous and coniferous forest-dwelling microtines on this continent, and compare and contrast their pattern with that of the same or similar species in Eurasia. We identify 7 long-term studies of population changes in Myodes in North America. Using autoregressive and spectral analysis, we found that only 2 of the 7 show 3- to 5-year cycles like those found in some Eurasian populations. There was no relationship between latitude and cycling. The general lack of cyclicity is associated with two key aspects of their demography that act in tandem: first, poor overwinter survival in most years; second, chronically low densities, with irregular outbreak years. Eight factors might explain why some Myodes populations fluctuate in cycles and others fluctuate irregularly, and we review the evidence for each factor: food supplies, nutrients, predation, interspecific competition, disease, weather, spacing behavior and interactive effects. Of these eight, only food supplies appear to be sufficient to explain the differences between cyclic and non-cyclic populations. Irregular fluctuations are the result of pulsed food supplies in the form of berry crops (M. rutilus) or tree seeds (M. gapperi) linked to weather patterns. We argue that, to understand the cause for the patterns in the respective hemispheres, we must know the mechanism(s) driving population change and this must be linked to rigorous field tests. We suggest that a large-scale, year-round feeding experiment should improve overwintering survival, increase standing densities, and flip non-cyclic Myodes populations into cyclic dynamics that would mimic the patterns seen in the cyclic populations found in parts of Eurasia.

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“…For example, Sullivan et al (2008) did not find significant differences in species richness of sites with different BA in mixed Douglas FirLodgepole Pine forests of British Columbia. However, Alford et al (2012) found that small mammal species richness was higher following tree removal in tallgrass prairies of Oklahoma.…”

Section: Unfortunately Problems With the Marking Technique Preventedmentioning

confidence: 79%

Low-basal area treatment and prescribed fire to restore oak-pine savannas alter small mammal communities

Jacques

Hallgren

Wilson

2017

Forest Ecology and Management

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Influence of variable retention harvests on forest ecosystems: Plant and mammal responses up to 8 years post-harvest

Cited by 49 publications

References 55 publications

An appraisal of the fitness consequences of forest disturbance for wildlife using habitat selection theory

An appraisal of the fitness consequences of forest disturbance for wildlife using habitat selection theory

Population dynamics of red-backed voles (Myodes) in North America

Low-basal area treatment and prescribed fire to restore oak-pine savannas alter small mammal communities

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