Effects of landscape composition and configuration on northern flying squirrels in a forest mosaic

Ritchie, Louise E; Betts, Matthew G.; Forbes, Graham J.; Vernes, Karl

doi:10.1016/j.foreco.2009.01.028

Cited by 50 publications

(30 citation statements)

References 96 publications

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“…Northern flying squirrels in New Brunswick (Ritchie et al, 2009) responded more to the total amount of habitat available on a landscape scale than they did to its configuration within the landscape, and thus manipulation of landscape configuration (i.e., connectivity) is unlikely to be useful in maintaining metapopulation viability in the face of habitat loss. This would seem to argue for caution in carrying out commercial thinning across large portions of the Pacific Northwest landscape, especially if one eventual goal is to sustain the primary prey of the northern spotted owl.…”

Section: Discussionmentioning

confidence: 99%

Thinning of young Douglas-fir forests decreases density of northern flying squirrels in the Oregon Cascades

Manning

Hagar

McComb

2012

Forest Ecology and Management

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Section: Discussionmentioning

confidence: 99%

Thinning of young Douglas-fir forests decreases density of northern flying squirrels in the Oregon Cascades

Manning

Hagar

McComb

2012

Forest Ecology and Management

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“…When the effects of habitat loss and fragmentation are Electronic supplementary material The online version of this article (doi:10.1007/s10980-015-0213-5) contains supplementary material, which is available to authorized users. addressed independently, habitat loss has a greater impact on biodiversity compared to the effects of fragmentation by reducing species richness of many taxa including insects, amphibians, birds, and small mammals Nupp and Swihart 2000;Cushman 2006;Ritchie et al 2009;Cerezo et al 2010). The effects of fragmentation, meanwhile, are usually much weaker and abundance and species richness can either increase or decrease in fragmented landscapes (Fahrig 2003).…”

Section: Introductionmentioning

confidence: 99%

The relative influence of forest loss and fragmentation on insectivorous bats: does the type of matrix matter?

Pedro

Simonetti

2015

Landscape Ecol

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Artículo de publicación ISIDisentangling the relative effects of forest loss versus fragmentation on species distribution and abundance is crucial for adopting efficient biodiversity conservation actions, which could change with the nature of the landscape matrix. We tested the moderating effect of landscape matrix on insectivorous bats response to forest loss and fragmentation. We conducted acoustic surveys at forest patches surrounded by either an agricultural-dominated matrix or a pine-dominated matrix. We related bat activity to forest amount and the number of forest patches at multiple spatial scales, and compared their effects between landscape matrices. Bat activity was associated with both predictors, however their effects varied with the matrix type. In agricultural landscapes, as the amount of forest increased, the activity of Histiotus montanus, Lasiurus cinereus and Tadarida brasiliensis increased, while activity of Myotis chiloensis decreased. Similarly, as fragmentation increased, the activity of Lasiurus varius and M. chiloensis increased, while activity of H. montanus decreased. In production-forest landscapes, only H. montanus decreased its activity with increasing forest amount. In contrast, activity of L. cinereus, M. chiloensis and T. brasiliensis increased with increasing fragmentation. Forest amount was a stronger predictor for agricultural landscapes than for production-forest landscapes, suggesting that low contrast matrices can mitigate the effects of forest loss. Fragmented landscapes with native forest patches surrounded by a low contrast matrix may support a higher activity of insectivorous bats. Management efforts in fragmented landscapes should aim to decrease the patch-matrix contrast, which will mitigate the effects of forest loss on bats.FONDECYT 1095046 Programa Domeyko-Biodiversidad (IT3), Universidad de Chile Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT), Chil

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“…Landscape composition and physiognomy affect community structure, species richness, and distribution (Tscharntke et al 2005;Ritchie et al 2009). The effects of landscape configuration encompass a variety of processes, including dispersal, source-sink dynamics, neighborhood effects, and metapopulation dynamics (Dunning et al 1992).…”

Section: Introductionmentioning

confidence: 99%

Does landscape composition alter the spatiotemporal distribution of the pine processionary moth in a pine plantation forest?

Samalens

Rossi

2010

Population Ecology

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Landscape composition and physiognomy affect community structure and species distribution across space and time. The pine processionary moth (PPM) (Thaumetopoea pityocampa Den. & Schiff., Lepidoptera, Notodontidae) is a common pine defoliator throughout southern Europe and Mediterranean countries. We surveyed the spatiotemporal distribution of the PPM in a pine plantation forest in southwestern France and used the density of the winter nests as a proxy for population density. The study spanned 4 years (2005)(2006)(2007)(2008) and showed a high temporal variability in nest density. We found a strong edge effect with nest densities at stand edges more than twice as large as within-stand densities. At the landscape scale, the spatial distribution of the moth exhibited a significant spatial autocorrelation in 3 out of 4 years of our study. The spatial scales of the autocorrelation ranged from ca. 2 km to more than 22 km. We found a positive correlation between spatial distributions corresponding to certain sampling years, but the relationship was not systematic. Landscape configuration appeared to be an important driver of the PPM spatial pattern. Bivariate Moran's I correlograms showed that patch richness density as well as the percentage of local landscape covered by various land uses were correlated with population density. The study showed that accounting for landscape characteristics may be important in order to understand forest insect pest distribution, even in cases where the host species is abundant and homogeneously distributed throughout the study area, e.g., pure plantation forests.

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Effects of landscape composition and configuration on northern flying squirrels in a forest mosaic

Cited by 50 publications

References 96 publications

Thinning of young Douglas-fir forests decreases density of northern flying squirrels in the Oregon Cascades

Thinning of young Douglas-fir forests decreases density of northern flying squirrels in the Oregon Cascades

The relative influence of forest loss and fragmentation on insectivorous bats: does the type of matrix matter?

Does landscape composition alter the spatiotemporal distribution of the pine processionary moth in a pine plantation forest?

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