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Keyword: Pinus ponderosa

Fire history in interior ponderosa pine communities of the Black Hills, South Dakota, USA

Publications Posted on: May 12, 2006
Chronologies of fire events were reconstructed from crossdated fire-scarred ponderosa pine trees for four sites in the south-central Black Hills. Compared to other ponderosa pine forests in the southwest US or southern Rocky Mountains, these communities burned less frequently.

Feeding ecology of Merriam's turkeys (Meleagris gallopavo merriami) in the Black Hills, South Dakota

Publications Posted on: May 12, 2006
W e studied the feeding ecology of Merriam’s turkey (Meleagris gallopavo merriami) in the Black Hills, South Dakota, between 1986 and 1989. Adult birds consumed 78 kinds of food, of which four food categories constituted >79% of winter diets and six food categories constituted >75% of summer diets.

Variation in selection of microhabitats by Merriam's turkey brood hens

Publications Posted on: May 10, 2006
We studied microhabitats of Merriam‘s turkey (Meleagris gallopavo merriami) brood hens in a ponderosa pine (Pinus ponderosa) ecosystem in South Dakota from 1986 to 1988. Cluster analysis indicated three groups of microhabitats, open-shrub, open-grasslforb and forest, based on vegetation characteristics at sites selected by brood hens.

Old Black Hills ponderosa pines tell a story

Publications Posted on: May 04, 2006
A single ponderosa pine tree found in the central Black Hills of SouthDakota revealed its age of more than 700 years by its tree rings taken from coring in 1992. The purpose of this study was to examine historic climatic patterns from the 13th century through most of the 20th century as inferred from ring widths of this and other nearby trees.

Wood and understory production under a range of ponderosa pine stocking levels, Black Hills, South Dakota

Publications Posted on: May 04, 2006
Stemwood and understory production (kg ha-1) were estimated during 3 nonconsecutive years on 5 growing stock levels of ponderosa pine including clearcuts and unthinned stands. Stemwood production was consistently greater at mid- and higher pine stocking levels, and understory production was greater in stands with less pine; however, there were no differences in total (stemwood + understory) production.

Do pine trees in aspen stands increase bird diversity?

Publications Posted on: May 02, 2006
In the Black Hills of South Dakota, quaking aspen (Populus tremuloides) is being replaced by conifers through fire suppression and successional processes. Although the Black Hills National forest is removing conifers (primarily ponderosa pine [Pinus ponderosa]) to increase the aspen communities in some mixed stands, Forest Plan guidelines allow four conifers per hectare to remain to increase diversity in the remaining aspen stand.

Shrub and tree establishment on coal spoils in northern High Plains - USA

Publications Posted on: April 27, 2006
Trickle irrigation, during establishment, increased survival two fold for seven species of shrubs and trees planted on coal mine spoil in the semiarid area of northeastern Wyoming, USA. Increased survival of irrigated plants persisted for five years after initiation of this study, which included two growing and winter seasons after cessation of irrigation.

Interior ponderosa pine in the Black Hills

Publications Posted on: April 27, 2006
The gross area of the Black Hills of South Dakota and associated Bear Lodge Mountains of eastern Wyoming is about 3.5 million acres (1.4 million ha). Roughly half the area supports forest or woodland cover. Essentially pure stands of climax Rocky Mountain ponderosa pine (Pinus ponderosa var. scopulorum Engelm.) predominate on about 1.5 million acres (0.6 million ha).

Turkey habitat use and nesting characteristics in ponderosa pine

Publications Posted on: March 23, 2006
Turkeys (Meleagris gallapovo) selected nest sites that provided good horizontal concealment. Rock or rock outcrops were selected most frequently for nest concealment on first-nest attempts. Renest attempts showed a selection preference for shrubs as nest cover; most of these were located in meadows. Nesting success doubled for renests versus first nest attempts.

Effects of timber harvesting on birds in the Black Hills of South Dakota and Wyoming, USA

Publications Posted on: March 23, 2006
Timber harvest alters structural characteristics in ponderosa pine forests. In the Black Hills, harvested stands with 40-70% overstory canopy cover are managed as sapling/pole (3.0 - 22.9 cm dbh) or mature (> 22.9 cm dbh) stands. Changing the forest structure to two size classes has unknown effects on bird communities in this region.