Habitat Use and Management of Pileated Woodpeckers in Northeastern Oregon

Bull, Evelyn L.; Holthausen, Richard S.

doi:10.2307/3809431

Cited by 77 publications

(80 citation statements)

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“…There are many methods for estimating home range (Harris et al 1990;Powell 2000;Worton 1987), as well as various applications of home range size and use measures. These applications include, but are not limited to, determining relationships between home range size and species' characteristics (Harvey and Clutton-Brock 1981;Haskell et al 2002;Mace and Harvey 1983), habitat preferences (Cederlund and Okarma 1988;Gese et al 1988;Tufto et al 1996), seasonal and annual fluctuations (Börger et al 2006;Li et al 2000;Wiktander et al 2001), and sex differences (Attuquayefio et al 1986;Fedigan et al 1988), as well as applications to conservation and management (Bingham and Noon 1997;Bull and Holthausen 1993;Linnell et al 2001). Further, home range size is often used to predict a species' vulnerability to habitat loss, although the strength of such predictions have varied (Johns and Skorupa 1987;Onderdonk and Chapman 2000;Skorupa 1986).…”

Section: Introductionmentioning

confidence: 99%

Travel and Spatial Patterns Change When Chiropotes satanas chiropotes Inhabit Forest Fragments

et al. 2009

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Previous studies have used home range size to predict a species' vulnerability to forest fragmentation. Northern bearded saki monkeys (Chiropotes satanas chiropotes) are medium-bodied frugivores with large home ranges, but sometimes they reside in forest fragments that are smaller than the species' characteristic home range size. Here we examine how travel and spatial patterns differ among groups living in forest fragments of 3 size classes (1 ha, 10 ha, and 100 ha) versus continuous forest. We collected data in 6 research cycles from JulyAugust 2003 and January 2005-June 2006 at the Biological Dynamics of Forest Fragments Project (BDFFP), north of Manaus, Brazil. For each cycle, we followed the monkeys at each study site from dawn until dusk for 3 consecutive days, and recorded their location. Although bearded saki monkeys living in 10-ha and 1-ha fragments had smaller day ranges and traveled shorter daily distances, they traveled greater distances than expected based on the size of the forest fragment. Monkeys in the small fragments revisited a greater percentage of feeding trees each day, traveled in more circular patterns, and used the fragments in a more uniform pattern than monkeys in the continuous forest. Our results suggest that monkeys in the small fragments maximize their use of the forest, and that the preservation of large tracts of forest is essential for species conservation. Species with large home ranges sometimes inhabit forest fragments, but doing so can alter behavior, demographics, and ecology, and the monkeys may be vulnerable to stochastic events.

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Section: Introductionmentioning

confidence: 99%

Travel and Spatial Patterns Change When Chiropotes satanas chiropotes Inhabit Forest Fragments

et al. 2009

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“…Landscapescale forest management must accommodate species with extensive and specialized habitat needs, including some cavity-nesting birds dependent on older forest Wiggers 1989, 1993;Bull and Holthausen 1993;Freedman et al 1996;Bonar 2000).…”

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Effects of Timber Harvesting and Plantation Development on Cavity-nesting Birds in New Brunswick

et al. 2006

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Effects of timber harvesting and plantation development on cavity-nesting birds in New Brunswick. Canadian Field-Naturalist 120(3): 298-306.We studied the abundance of cavity-nesting birds in forestry-related habitats in a region of Acadian forest in New Brunswick. We examined five reference stands of natural forest, a chronosequence of conifer plantations up to 19 years old (the oldest in the study area), two selectively harvested stands, and a 30-year-old naturally regenerated clear-cut. The species richness and abundance of cavity-nesting birds were higher in reference forest (average 10.0 species per stand; 5.3 territories per 10 ha) than in plantations (2.3/stand; 1.0/10 ha), selectively harvested stands (7.0/stand; 3.8/10 ha), or the naturally regenerated clear-cut (5.0/stand; 2.5/10 ha). A cluster analysis segregated the "community" of cavity-nesting birds of natural forest from those of other treatments. Of the various harvested stands and plantations, five with a relatively large number of residual snags clustered similarly in the cluster analysis, while those with no or very few snags also clustered together. We used arrays of nest boxes (12 per stand) to examine whether the availability of cavities was limiting the use of habitats otherwise suitable for foraging by cavity-dependent species. Nest-box use for nesting and roosting was much higher in the seven plantations examined (average 4.0/10 ha for nesting and 2.9/10 ha for roosting) than in three reference stands (each 0.3/10 ha), suggesting that the plantations were deficient in this critical-habitat element. Our results suggest that certain mitigations, such as leaving residual snags and living cavity-trees, would help maintain populations of some cavity-dependent birds in clear-cuts and plantations. However, some cavity-dependent species might not be accommodated by these mitigations and are potentially at risk in intensively managed areas, unless landscape-scale management plans ensure the survival of sufficient areas of older mixed-wood forest.

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“…Currently, most National Forests east of the Cascade Range use the snag densities recommended by Thomas and others (1979) for woodpecker management. Bull and Holthausen (1993), however, found that pileated woodpecker densities were less than what this model would have predicted by snag numbers alone. In addition, recent studies suggest that current snag density guidelines may be too low to produce the desired levels of woodpecker abundance because the guidelines focus only on their nesting needs (Bull and others 1997).…”

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confidence: 74%

Estimating snag and large tree densities and distributions on a landscape for wildlife management.

Garton¹,

Bate²,

Wisdom³

1999

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We provide efficient and accurate methods for sampling snags and large trees on a landscape to conduct compliance and effectiveness monitoring for wildlife in relation to the habitat standards and guidelines on National Forests. Included online are the necessary spreadsheets, macros, and instructions to conduct all surveys and analyses pertaining to estimation of snag and large tree densities and distributions at the subwatershed scale. The methods focus on optimizing sampling effort by choosing a plot size appropriate for the specific forest conditions encountered. Two methods are available for density analysis. Method one requires sampling until a desired precision level is obtained for a density estimate. Method two is intended for use in areas that have low snag densities compared to Forest plan targeted densities. After taking a minimum of 60 samples, one may test for a significant difference between the estimated and targeted densities. In addition, data can be used to calculate a distribution index. The value obtained from the distribution index indicates whether the current distribution of target snags and large trees across a subwatershed is adequate to meet the habitat needs of territorial cavity-nesters and other wildlife species. Wildlife use also may be evaluated.Keywords: Density, distribution, foraging, nesting, monitoring, sampling technique, snag, large tree, woodpecker, wildlife management, wildlife use.

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Habitat Use and Management of Pileated Woodpeckers in Northeastern Oregon

Cited by 77 publications

References 0 publications

Travel and Spatial Patterns Change When Chiropotes satanas chiropotes Inhabit Forest Fragments

Travel and Spatial Patterns Change When Chiropotes satanas chiropotes Inhabit Forest Fragments

Effects of Timber Harvesting and Plantation Development on Cavity-nesting Birds in New Brunswick

Estimating snag and large tree densities and distributions on a landscape for wildlife management.

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