Long-term effects of precommercial thinning on small mammals in northern Maine

Homyack, Jessica A.; Harrison, Daniel J.; Krohn, William B.

doi:10.1016/j.foreco.2004.10.005

Cited by 54 publications

(23 citation statements)

References 53 publications

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“…In general, PCT could also have a long-term impact on the ground vegetation cover since high stocking is a severe limitation due to the reduction in light to the ground and the stocking is more important than the canopy species composition per se. (Hedwall et al 2013;Bataineh et al 2014) Similarly, positive response of PCT has been found for small mammals (Homyack et al 2005;Sullivan et al 2009).…”

Section: Introductionmentioning

confidence: 68%

Scenario analysis of planting density and pre-commercial thinning: will the mixed forest have a chance?

Holmström¹,

Hjelm

Karlsson³

et al. 2016

Eur J Forest Res

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In the establishment phase, several management alternatives could be applied that affect the species composition of the future stand. In this study, tree seedling data from experiments with planted Norway spruce (Picea abies L. Karst) and naturally regenerated species, mainly Silver birch (Betula pendula Roth), were used for six simulated pre-commercial thinning (PCT) scenarios. The scenarios included both monocultures and mixed stand alternatives with various initial spacing of the planted Norway spruce (0, 1600 or 2800 seedlings) and selection of main stems based on relative heights. Further stand development and individual tree growth were simulated until final harvest. Potentially, based on findings of the seedling measurements, the stands could be mixed with five to six species, but the browsing pressure from ungulates reduced this possibility since the height growth for all species except Norway spruce was highly affected by browsing. The simulated mixtures had a small variation between the PCT scenarios for the maximum mean annual increment (about 10 %). Although the growth was similar for Norway spruce, the proportion of birch in the final stands differed from 3 to 21 % between treatments and none of the highdensity planting treatments generated a mixed Norway spruce-birch forest at the time of final felling.

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Section: Introductionmentioning

confidence: 68%

Scenario analysis of planting density and pre-commercial thinning: will the mixed forest have a chance?

Holmström¹,

Hjelm

Karlsson³

et al. 2016

Eur J Forest Res

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“…In boreal mixedwood and black spruce sites in western Quebec, Cheveau (2003) found no difference in red-backed vole capture rates between diameterlimit cuts and controls. Studies of selection cutting, thinning, and other high-retention (typically 50%-70%) harvesting systems from other areas have shown either no significant effects (Brooks and Healy 1988, Klenner and Sullivan 2003, Fuller et al 2004, Gitzen 2006, or a positive effect (Monthey and Soutiere 1985, Medin and Booth 1989, Mahon 1998, Steventon et al 1998, Von Treba et al 1998, Homyack et al 2005, of harvesting on this species.…”

Section: Rodentsmentioning

confidence: 97%

“…Short-tailed shrews are most common where there are moist microclimates associated with understory cover, herbaceous vegetation, and deciduous leaf litter (Miller and Getz 1977, Kuttner 2002, Fuller et al 2004. Studies from Maine (Fuller et al 2004, Homyack et al 2005 and Nova Scotia (Swan et al 1984) found that precommercial thinning, selection harvesting (to a residual basal area of 13 m 2 /ha), shelterwood harvesting (to a residual basal area of 9 m 2 /ha), and stripcutting did not significantly reduce shorttailed shrew abundance relative to mature stands. Another study from Maine (Monthey and Soutiere 1985), however, reported lower abundance in hardwood stands cut to a 40-cm diameter limit than in uncut stands.…”

Section: Northern Short-tailed Shrewmentioning

confidence: 99%

Effects of partial harvesting on vertebrate species associated with late-successional forests in Ontario’s boreal region

Vanderwel¹,

Mills²,

Malcolm³

2009

The Forestry Chronicle

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In the boreal forest region, partial-harvest silviculture has been garnering increasing interest as a means of maintaining wildlife species and habitat structure associated with late-successional forests. If late-successional species can find suitable habitat in partially harvested stands with a given level of structural retention, then partial harvesting might represent a viable silvicultural tool for maintaining wildlife dependent on mature or old-forest habitat within managed stands over time. Here we summarize literature on the responses of late-successional amphibians, birds, and mammals in Ontario's boreal region to various intensities of partial harvesting. We assess species responses from comparisons of habitat use in harvested and unharvested stands; we do not explicitly consider impacts of partial harvesting applied over large areas across the landscape. At the stand scale, light-intensity harvesting (70% retention) negatively affects several passerine birds, as well as spruce grouse winter habitat, but most late-successional species (including all mammals and amphibians considered) appear to be tolerant of this level of habitat alteration. Moderate-intensity harvesting (50% retention) was found to reduce the abundance of about 40% of the species considered, particularly cavity-and snag-dependent species (martens, northern flying squirrels, owls) and passerine birds that forage or nest in the canopy and understory. Highintensity (30% retention) partial harvesting was found to provide unsuitable habitat for about one quarter of all late-successional species, including most forest raptors, pileated and black-backed woodpeckers, brown creepers, northern flying squirrels, and woodland caribou. Also, studies indicate that additional passerine bird species would decrease in abundance, as would small, moisture-dependent, terrestrial species such as short-tailed shrews, red-backed voles, and eastern red-backed salamanders. There is a need to strengthen our understanding of responses to partial harvesting for nonpasserine birds and large mammals, and to verify species responses through experimental studies within Ontario's boreal region.Key words: structural retention, selection, shelterwood, seed tree, cavities, snags, downed woody debris, habitat suitability, amphibians, birds, mammals, biodiversity, review RÉSUMÉ Dans la région de la forêt boréale, la sylviculture basée sur une récolte partielle a attiré de plus en plus d'attention en tant que moyen de préserver les espèces sauvages et la structure du milieu associé aux forêts de fin de succession. Si les espèces de fin de succession peuvent retrouver un milieu adéquat dans les peuplements ayant subi une coupe partielle qui préserve à un niveau donné la structure du milieu, alors la coupe partielle pourrait constituer un outil sylvicole viable pour la préservation de la faune dépendante d'une forêt mûre ou d'une vieille forêt retrouvée au cours du temps parmi les peuplements aménagés. Nous avons résumé dans cet article la littérature portant sur les ...

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“…Hagar et al, 2004;Homyack et al, 2005;Sullivan et al, 2005). Moreover, the impact of different thinning intensities is only just beginning to be explored (Hayes et al, 2003;Hagar et al, 2004;Sullivan et al, 2005Sullivan et al, , 2007.…”

Section: Stand Typementioning

confidence: 99%

Stand and landscape-level factors related to bird assemblages in exotic pine plantations: Implications for forest management

Luck

Korodaj

2008

Forest Ecology and Management

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Long-term effects of precommercial thinning on small mammals in northern Maine

Cited by 54 publications

References 53 publications

Scenario analysis of planting density and pre-commercial thinning: will the mixed forest have a chance?

Scenario analysis of planting density and pre-commercial thinning: will the mixed forest have a chance?

Effects of partial harvesting on vertebrate species associated with late-successional forests in Ontario’s boreal region

Stand and landscape-level factors related to bird assemblages in exotic pine plantations: Implications for forest management

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