Forest Sciences Commons^™

Importance Of Early Successional Forest For Wildlife In Southern New England, Amy Wynia

Senior Honors Projects

Many bird species that require early successional forest are declining in the Northeast U.S. because such habitat is relatively rare and when they inhabit the more common mature forests or suburban areas they are less successful. Early successional forest is maintained by regular disturbance (wind, fire, clear-cutting, and flooding) which has been happening less frequently during the past 50 years. Bird species that have declined during this time and which inhabit early successional forest include ruffed grouse (Bonasa umbellus), blue jay (Cyanocitta cristata), chestnut-sided warbler (Dendroica pensylvanica), gray catbird (Dumetella carolinensis), field sparrow (Spizella pusilla), golden-winged warbler (Vermivora chrysoptera), eastern …

Ecology, Biodiversity, Management, And Restoration Of Aspen In The Sierra Nevada, Wayne D. Shepperd, Paul C. Rogers, David Burton, Dale L. Bartos

Aspen Bibliography

This report was commissioned by the USDA Forest Service Lake Tahoe Basin Management Unit to synthesize existing information on the ecology and management of aspen (Populus tremuloides) in the Sierra Nevada of California and surrounding environs. It summarizes available information on aspen throughout North America from published literature, internal government agency reports, and experienced scientists and managers. The historic distribution, abundance, and ecologic role of aspen in the Sierra Nevada are discussed, along with the reproductive physiology of aspen. Issues that affect aspen health and vigor in the Sierra Nevada and elsewhere are covered, along with methodology for …

Spatial Autocorrelation And Pseudoreplication In Fire Ecology, Amanda L. Bataineh, Brian P. Oswald, Mohammad M. Bataineh, Daniel Unger, I-Kuai Hung, Daniel Scognamillo

Faculty Publications

Fire ecologists face many challenges regarding the statistical analyses of their studies. Hurlbert (1984) brought the problem of pseudoreplication to the scientific community’s attention in the mid 1980’s. Now, there is a new issue in the form of spatial autocorrelation. Spatial autocorrelation, if present, violates the traditional statistical assumption of observational independence. What, if anything, can the fire ecology community do about this new problem? An understanding of spatial autocorrelation, and knowledge of available methods used to reduce the effect of spatial autocorrelation and pseudoreplication will greatly assist fire ecology researchers.

The Challenge Of Environmental Protection, Jennifer Mattei

Biology Faculty Publications

Connecticut is in the midst of a demographic transition to a period of lower population growth. These demographic changes will help check the pressures exerted on the state's natural resources by population growth. Water, air, soil, energy sources, food, fisheries, forests, and biodiversity are common pool resources upon which we depend in ways that transcend political boundaries. Those governing Connecticut should help turn the state into a model of how to manage natural resources by halting forest fragmentation, reducing pollution, and promoting environmental science education.

An Assessment Of Potential Habitat Corridors And Landscape Ecology For Long-Tailed Macaques (Macaca Fascicularis) On Bali, Indonesia, Mark Warren Southern

All Master's Theses

The relationship between Balinese long-tailed macaques, Bali's cultural settings, and Bali's physical settings was studied. A Geographical Information System (GIS) database was developed and analyzed to determine if forest corridors exist on Bali that may provide habitat connectivity between 42 Balinese long-tailed macaque troops. The GIS database was also analyzed to determine if the landscape type that has the highest percentage of overlap with the 42 Balinese long-tailed macaque home range sites is forest. The results indicate that connectivity between troops located within Bali's western region is significantly higher than that for troops located in Bali's eastern region. The results …

Effects Of Diameter-Limit And Two-Age Timber Harvesting On Songbird Populations On An Industrial Forest In Central West Virginia, Cathy Ann Weakland

Graduate Theses, Dissertations, and Problem Reports (ETD)

Many studies examining forest fragmentation effects on songbirds have been conducted in landscapes significantly altered by urbanization or agriculturalization rather than forested landscapes. There is some evidence that forest fragmentation due to timber harvesting has different effects on bird abundance than fragmentation from other land uses. It is unknown how songbirds respond to different forms of timber harvesting as fragmentation events. Also, it is unclear if microhabitat-level or landscape-level characteristics are more important predictors of breeding bird occurrence in the central Appalachians. The objectives of my study were to determine the short-term effects of diameter-limit and two-age timber harvesting on …

Effect Of Artificial Flooding On The Vegetation And Avifauna Of Riparian Woodlands At Santa Ana National Wildlife Refuge, Hidalgo County, Texas, Charles David Castillo

Theses and Dissertations - UTB/UTPA

Riparian habitats along the Rio Grande at Santa Ana National Wildlife Refuge have dramatically decreased since the construction of Falcon Dam in 1953. Riparian habitats are dependent on annual or periodic flooding to maintain their biological integrity. Lack of seasonal flooding has contributed to changes in vegetative composition from riparian forests to thornscrub. Effects of artificial flooding on vegetation and avifauna of riparian woodlands were evaluated from 1995-1997 at the Santa Ana National Wildlife Refuge. Floodwaters caused the destruction of all existing herbaceous species along study transects and the regeneration of new and native seedlings. Avian abundance and diversity dramatically …

The Red-Cockaded Woodpecker's Role In The Southern Pine Ecosystem, Population Trends And Relationships With Southern Pine Beetles, Richard N. Conner, D. Craig Rudolph, Daniel Saenz, Robert N. Coulson

Faculty Publications

This study reviews the overall ecological role of the Red-cockaded Woodpecker (Picoides borealis)in the southern pine ecosystem. It is the only North American woodpecker species to become well adapted to a landscape that was relatively devoid of the substrate typically used by woodpeckers for cavity excavation (i.e. snags and decayed, living hardwoods). Its adaptation to use living pines for cavity excavation has expanded the use of this fire-disclimax ecosystem for numerous other cavity-using species. As such, the Red-cockaded Woodpecker represents an important keystone species of fire-disclimax pine ecosystems of the South. Historically, populations of this woodpecker and other cavity dependent …

Ecology And Management Of Larix Forests: A Look Ahead ... Proceedings Of An International Symposium, United States Department Of Agriculture, Forest Service

Forestry

This proceedings is the product of an international symposium on the Larix species of North America, Europe, and Asia. Western larch, an important species in the Western United States and Canada, was featured. The symposium included information on ecology, management, silviculture, regeneration processes, growth, wildlife, vegetation succession, silvics, history, genetics, breeding and provenance testing, physiology, fire, insects and disease, and research need. This proceedings illustrates the importance of Larix in the temperate forests of the Northern Hemisphere.

Silviculture And Management Of Aspen In Canada: The Western Canada Scene, S. Navratil, I.E. Bella, E.B. Peterson

Aspen Bibliography

No abstract provided.

Aspen Symposium '89: Proceedings. Duluth, Minnesota, July 25-27, 1989, R.D. Adams

Aspen Bibliography

No abstract provided.

Breeding Birds In Uncut Aspen And 6- To 10-Year-Old Clearcuts In Southwestern Colorado, V.E. Scott, G.L. Crouch

Aspen Bibliography

Numbers of breeding birds were estimated for various sizes and ages of clearcuts, for edge habitat created by the clearcuts, leave strips between clearcuts, and uncut aspen forest (controls). Total numbers of birds were not different among three size classes or five age classes of clearcuts. Total were lower on clearcuts than on edges but not different from controls or leave strips.

Response Of Breeding Birds To Commercial Clearcutting Of Aspen In Southwestern Colorado [Usa], V.E. Scott, G.L. Crouch

Aspen Bibliography

Breeding birds on an aspen forest in southwestern Colorado increased in species diversity after 25% of the timber sale area forest was clearcut in patches of 3 to 20 acres. Bird population density on the forest with clearcuts was not significantly different from that on an uncut forest. Of the 20 species evaluated, six were more and one was less abundant than on the uncut forest.

Livestock Grazing On Public Lands: Procedures And Issues, E. T. Bartlett

The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)

17 pages.

Contains references.

Fire Effects In Northeastern Forests: Aspen, C. Rouse

Aspen Bibliography

No abstract provided.

Effects Of Recreation (Trampling) On The Forest Floor And Associated Streams Of Aspen And Conifer Forests, M.C. Molles, J.R. Gosz, R.G. Cates

Aspen Bibliography

Heavy trampling significantly reduced the biomass of understory vegetation in aspen stands subject to different management procedures (thinning, fertilization). Light trampling also resulted in lower understory biomass except where it was performed in a fertilized aspen stand which had an understory community dominated by grasses. The grass community appears to be more resistant to trampling. Coverage by the understory was also reduced by both heavy and light trampling in aspen stands. The sparse understory of spruce-fir forests was not significantly changed. Trampling fragmented the forest floor in aspen but not in spruce-fir.

Aspen [Populus Tremuloides] Community Types On The Bridger-Teton National Forest In Western Wyoming [Including A Key With Indicator Species], Andrew P. Youngblood, Walter F. Mueggler

Aspen Bibliography

A classification system is presented for aspen (Populus tremuloides Michx.) dominated forests on the Bridger-Teton National Forest in western Wyoming. Twenty-six aspen community types are defined and described. A diagnostic key that utilizes indicator plant species is provided for field identification of the community types. Vegetation composition, environment, productivity, relationship to surrounding vegetation, and successional status are discussed. Tables are provided for detailed comparisons.

Effects Of Annual Burning On Grassland In The Aspen Parkland Of East-Central Alberta, Howard G. Anderson, Arthur W. Bailey

Aspen Bibliography

Annual early spring burning has markedly altered the physiognomy and species composition of aspen parkland vegetation of east-central Alberta. Burning was conducted in April for at least 24 years when soil moisture was normally high. The number of herbaceous species per quadrat doubled while a number of woody species declined slightly.

Classification Of Quaking Aspen Stands In The Black Hills And Bear Lodge Mountains, K.E. Severson, J.F. Thilenius

Aspen Bibliography

No abstract provided.

Grass-Woody Plant Relationships, A.W. Bailey, R.K. Gupta

Aspen Bibliography

No abstract provided.

Aspen Grove Use By Deer, Elk, And Cattle In Southwestern Coniferous Forests, Hudson G. Reynolds

Aspen Bibliography

Aspen groves within mixed conifer forests produce more herbaceous understory than adjacent forest. Thinning aspen groves improves herbaceous understory and aspen regeneration. Higher deer and cattle use of aspen groves is associated with the greater abundance of understory vegetation.

Influence Of Fire On Aspen Suckering, K.W. Horton, E.J. Hopkins

Aspen Bibliography

No abstract provided.

Ecology Of The Aspen Parkland Of Western Canada In Relation To Land Use, R.D. Bird

Aspen Bibliography

No abstract provided.

Silvical Characteristics Of Bigtooth Aspen [Populas Grandidentata], P.E. Slabaugh

Aspen Bibliography

No abstract provided.

Prevernal Leafing Of Aspen In Utah Mountains, W.P. Cottam

Aspen Bibliography

The Rocky Mountain aspen (Populus tremuloides Michx., var. aurea Tidestrom) dominates more mountainous terrain in Utah at elevations between 7,000 and 10,000 feet than any other forest species.