A Review of the Literature on Seed Fate in Whitebark Pine and the Life History Traits of Clark's Nutcracker and Pine Squirrels

A Review of the Literature on Seed Fate in Whitebark Pine and the Life History Traits of Clark's Nutcracker and Pine Squirrels
Title A Review of the Literature on Seed Fate in Whitebark Pine and the Life History Traits of Clark's Nutcracker and Pine Squirrels PDF eBook
Author Teresa J. Lorenz
Publisher
Total Pages 68
Release 2008
Genre Clark's nutcracker
ISBN

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Whitebark pine is a critical component of subalpine ecosystems in western North America, where it contributes to biodiversity and ecosystem function and in some communities is considered a keystone species. Whitebark pine is undergoing rangewide population declines attributed to the combined effects of mountain pine beetle, white pine blister rust, and fire suppression. The restoration and maintenance of whitebark pine populations require an understanding of all aspects of seed fate. In this paper, we review the literature on seed dispersal in whitebark pine. Clark's nutcracker, pine squirrels, and scatter-hoarding rodents are all known to influence whitebark pine seed fate and ultimately affect the ability of whitebark pine populations to regenerate. We also provide a general overview of the natural histories of the most influential species involved with whitebark pine seed fate: Clark's nutcracker and the pine squirrel.

A Review of the Literature on Seed Fate in Whitebark Pine and the Life History Traits of Clark's Nutcracker and Pine Squirrels

A Review of the Literature on Seed Fate in Whitebark Pine and the Life History Traits of Clark's Nutcracker and Pine Squirrels
Title A Review of the Literature on Seed Fate in Whitebark Pine and the Life History Traits of Clark's Nutcracker and Pine Squirrels PDF eBook
Author Teresa J. Lorenz
Publisher
Total Pages 62
Release 2008
Genre Clark's nutcracker
ISBN

Download A Review of the Literature on Seed Fate in Whitebark Pine and the Life History Traits of Clark's Nutcracker and Pine Squirrels Book in PDF, Epub and Kindle

Whitebark pine is a critical component of subalpine ecosystems in western North America, where it contributes to biodiversity and ecosystem function and in some communities is considered a keystone species. Whitebark pine is undergoing rangewide population declines attributed to the combined effects of mountain pine beetle, white pine blister rust, and fire suppression. The restoration and maintenance of whitebark pine populations require an understanding of all aspects of seed fate. In this paper, we review the literature on seed dispersal in whitebark pine. Clark's nutcracker, pine squirrels, and scatter-hoarding rodents are all known to influence whitebark pine seed fate and ultimately affect the ability of whitebark pine populations to regenerate. We also provide a general overview of the natural histories of the most influential species involved with whitebark pine seed fate: Clark's nutcracker and the pine squirrel.

Whitebark Pine Seed Scarifier

Whitebark Pine Seed Scarifier
Title Whitebark Pine Seed Scarifier PDF eBook
Author
Publisher
Total Pages 6
Release 2002
Genre Whitebark pine
ISBN

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Describes a prototype whitebark pine seed scarifier developed by the Missoula Technology and Development Center that allows workers to nick (scarify) seeds three times as fast as if they were doing so by hand, with reduced risk of injury. Populations of whitebark pine have declined over the past century because of white pine blister rust, insect infestations, and fire suppression. Whitebark pine seeds are a favored food of the grizzly bear, a threatened species protected by the Endangered Species Act in the 48 contiguous States. Whitebark pine trees, which may be the only trees growing in some sub-alpine and alpine areas of the northern Rocky Mountains, also catch snow during the winter. The drifts melt more slowly than thinner snowpack in bare areas, extending runoff. The scarifier should help reduce the costs of growing whitebark pine seedlings, possibly allowing more whitebark pines to be planted. Seeds collected from white-bark pine trees resistant to blister rust are germinated in nurseries. The germination rate increases from about 5 percent to 60 percent or more if each seed has a 1-mm-deep nick. Workers can nick about 400 seeds an hour by hand, compared to 1,500 seeds an hour when using the prototype scarifier. The scarifier costs about $1,000 to fabricate. Fabrication drawings will be available from the Missoula Technology and Development Center.

The Ecology and Evolution of Seed Dispersal Mutualisms Between Nutcrackers and Pines

The Ecology and Evolution of Seed Dispersal Mutualisms Between Nutcrackers and Pines
Title The Ecology and Evolution of Seed Dispersal Mutualisms Between Nutcrackers and Pines PDF eBook
Author Adam M. Siepielski
Publisher ProQuest
Total Pages 183
Release 2007
Genre Coevolution
ISBN 9780549356899

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Seed Crops of Forest Trees in the Pine Region of California

Seed Crops of Forest Trees in the Pine Region of California
Title Seed Crops of Forest Trees in the Pine Region of California PDF eBook
Author Harry Ardell Fowells
Publisher
Total Pages 52
Release 1956
Genre Fir
ISBN

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Project Puffin

Project Puffin
Title Project Puffin PDF eBook
Author Stephen W. Kress
Publisher Yale University Press
Total Pages 382
Release 2015-04-28
Genre Science
ISBN 0300213670

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Project Puffin is the inspiringstory of how a beloved seabird was restored to long-abandoned nesting colonies off the Maine coast. As a young ornithology instructor at the Hog Island Audubon Camp, Dr. Stephen W. Kress learned that puffins had nested on nearby islands until extirpated by hunters in the late 1800s. To right this environmental wrong, he resolved to bring puffins back to one such island—Eastern Egg Rock. Yet bringing the plan to reality meant convincing skeptics, finding resources, and inventing restoration methods at a time when many believed in “letting nature take its course.” Today, Project Puffin has restored more than 1,000 puffin pairs to three Maine islands. But even more exciting, techniques developed during the project have helped to restore rare and endangered seabirds worldwide. Further, reestablished puffins now serve as a window into the effects of climate change. The success of Dr. Kress's project offers hope that people can restore lost wildlife populations and the habitats that support them. The need for such inspiration has never been greater.

Birds of Montana

Birds of Montana
Title Birds of Montana PDF eBook
Author Jeffrey S. Marks
Publisher
Total Pages 0
Release 2016
Genre Birds
ISBN 9780931130199

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A definitive account of the Montana's birds covering historical aspects, conservation status, relative abundance, and ecology of all species known to occur in the state.