Digital Commons Network^™

Comparison Of Boreal Ecosystem Model Sensitivity To Variability In Climate And Forest Site Parameters, Christopher S. Potter, Shusen Wang, Ned T. Nikolov, A D. Mcguire, Jane Liu, A W. King, John Kimball, Robert F. Grant, Steve Frolking, Joy S. Clein, Jing M. Chen, Jeffrey S. Amthor

Earth Sciences

Ecosystem models are useful tools for evaluating environmental controls on carbon and water cycles under past or future conditions. In this paper we compare annual carbon and water fluxes from nine boreal spruce forest ecosystem models in a series of sensitivity simulations. For each comparison, a single climate driver or forest site parameter was altered in a separate sensitivity run. Driver and parameter changes were prescribed principally to be large enough to identify and isolate any major differences in model responses, while also remaining within the range of variability that the boreal forest biome may be exposed to over a …

The First Ecological Study Of A Red Sea Maerl Bed., G Brownlie, Jm Hall-Spencer, A Hamid, C Henderson, A Kinchington, R Linklater-Mclennan, H Mokhtar

School of Biological and Marine Sciences

No abstract provided.

New Species Of Hemiphileurus Kolbe (Coleoptera: Scarabaeidae: Dynastinae) From Mexico, Guatemala, Colombia, And Brazil, Brett C. Ratcliffe

University of Nebraska State Museum: Entomology Papers

The following new species of Hemiphileurus are described: H. bispinosus Ratcliffe from Brazil, H. deslislesi Ratcliffe from Colombia, H. quadridentatus Ratcliffe from Guatemala, and H. warneri Ratcliffe from Mexico. The parameres of H. rugulosus Endrödi (Venezuela and Colombia) are illustrated to enable easier identification of this species, and H. kahni Dupuis and Dechambre is redescribed and recorded from Brazil for the first time. Diagnostic illustrations of the male parameres are provided for the above taxa. A checklist for all the species in the genus is given.

Se describen las siguientes nuevas especies de Hemiphileurus: H. bispinosus Ratcliffe de Brasil, …

The Faculty Notebook, December 2001, Provost's Office

Faculty Notebook

The Faculty Notebook is published periodically by the Office of the Provost at Gettysburg College to bring to the attention of the campus community accomplishments and activities of academic interest. Faculty are encouraged to submit materials for consideration for publication to the Associate Provost for Faculty Development. Copies of this publication are available at the Office of the Provost.

Iowa's Non-Native Graminoids, Thomas R. Rosburg

Journal of the Iowa Academy of Science: JIAS

Iowa's non-native graminoids include 60 species of grasses and one species of bulrush. The exotic grass species comprise a large proportion (about 31%) of the total species richness of grasses in Iowa, which are second only to the Asteraceae in terms of total species. About half of the non-native graminoids (52%) occur sporadically and form sparse, non-invasive populations, while eighteen species (about 30%) are commonly encountered in large populations throughout the state. About 60% are annuals and a large majority (89%) has been introduced from either Europe or Asia. The C3 photosynthetic pathway is prevalent, occurring in approximately two-thirds of …

Purple Loosestrife: History, Management, And Biological Control In Iowa, Amy P. Wiebe, John J. Obrycki

Journal of the Iowa Academy of Science: JIAS

Purple loosestrife (Lythrum salicaria) is an invasive plant species infesting wetlands in North America. Biodiversity and wetland habitat quality are reduced following purple loosestrife establishment. Several management tactics, including cultural, mechanical, and chemical controls, have had limited success in reducing the spread of purple loosestrife. Beginning in the 1990s, a biological control program has introduced several species of natural enemies from Europe that feed on purple loosestrife. Since 1994, Iowa State University has reared and released two species of beetles that feed on purple loosestrife, Galerucella calmariensis and G. pusilla. Biological control is one component of an integrated purple loosestrife …

University Of New Mexico Board Of Regents Minutes For November 13, 2001, University Of New Mexico Board Of Regents

Board of Regents Meeting Minutes

Minutes from the November 13, 2001 Board of Regents Meeting

Fisheries Research Report No. 130 - Environmental Requirements And Tolerances Of Rainbow Trout (Oncorhynchus Mykiss) And Brown Trout (Salmo Trutta) With Special Reference To Western Australia: A Review, Brett W. Molony

Fisheries Research Reports

Both Oncorhynchus mykiss (rainbow trout) and Salmo trutta (brown trout) have a long history of translocation and culture and a wide knowledge base exists. O.mykiss is being considered as a candidate for inland aquaculture in the salinity affected areas of southern Western Australia and this review aims, in part, at providing relevant information to those considering a trout-framing venture in Western Australia. Both species of trout can survive a wide range of environmental conditions, including temperature, salinity, pH, dissolved oxygen and ammonia, with O.mykiss having a higher temperature tolerance than S.trutta. However, within the ranges of environmental conditions, each species …

Ice Age Floods In The Spokane And Cheney Area, Washington, Eugene P. Kiver, Dale F. Stradling

Cheney-Palouse Chapter Records

This booklet provides directions for a driving tour featuring evidence for Ice Age floods in Spokane County. The route extends from Interstate 90 along the north to Williams Lake Road to the south.

The booklet was created for the seventh field trip sponsored by the Cheney-Palouse Chapter of the Ice Age Flood Institute.

The Courier, Volume 35, Issue 2, October 12, 2001, The Courier, College Of Dupage

The Courier

Stories:

New Speech And Reading Center

Parking Problem Still Nothing New

Islamic Student Speaks Out

25 Year Facilities Master Plan

Parking Garage Plans

Dental Hygiene Addition To MAC

How Do You Feel Now That The United States Has Bombed Afghanistan?

Muslim Students Share Opinions On Terrorism, The U.S. And Their Faith

Terrorism In America: Insights And Opinions

Once Upon A Midnight A Hit On Mainstage

People:

Meryl Sussman

Juet Brown

John Astin

Patrick Smollen

Charles Ellenbaum

Busa family

Beth Emody

Albert Guevara

The George-Anne, Georgia Southern University

The George-Anne

• U.S. Attacks Taliban, Al'Qaeda Strongholds
• Police Beat
• Opinions
• Sports
• Lifestyles
• Classifieds

Fall 2001, Seattle University

Seattle University News (Sun)

No abstract provided.

Forested Wetlands Of The Southern United States: A Bibliography, William Conner, Nicole L. Hill, Evander M. Whitehead, William S. Busbee, Marceau A. Ratard, Mehmet Ozalp, Darrell L. Smith, James P. Marshall

Publications

The term forested wetland covers a variety of forest types including mangroves, cypress/tupelo swamps, bottomland hardwoods, pocosins and Carolina bays, flatwoods, and mountain fens. These forests are dominated by woody species that have morphological features, physiological adaptations, and/or reproductive strategies enabling them to achieve maturity and reproduce in an environment where the soils within the rooting zone may be inundated or saturated for various periods during the growing season. Although alluvial floodplains occur along most streams of the United States, they are most extensive in the Atlantic Coastal Plain, Gulf Coastal Plain, and Mississippi Alluvial Plain. Only about half of …

Abundance And Habitat Associations Of Birds Wintering In The Platte River Valley, Nebraska, Craig Davis

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

The abundance and habitat associations of overwintering birds in Platte River Valley of central Nebraska may influence their long-term survival. I observed a total of 51 species over a three-year period in shrub-grassland, forest, grassland, and cropland habitats during the winter. Grassland habitats had the lowest abundance of wintering birds, while abundances in shrub-grassland, forest, and cropland habitats were higher and similar. Species richness was highest in forests ( x= 2.97 species) and lowest in grasslands (x = 0.73 species) and croplands (x = 0.57 species). Overall, horned larks (Eremophila alpestris), American tree sparrows (Spizella arborea), …

Review Of Standard Soil Methods For Long-Term Ecological Research Edited By G. Philip Robertson, David E. Coleman, Caroline S. Bledsoe, And Phillip Sollins, Mary Ann Vinton

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Standard Soil Methods for Long-Term Ecological Research is the second in a series of books dedicated to summarizing the research results and methods of ecological studies being conducted at sites around North America and Antarctica under the sponsorship of the National Science Foundation's Long-Term Ecological Research (LTER) program. The twenty-one sites range from arctic tundra to hot desert and from natural tropical rainforest to urban and suburban areas.

Habitat Fragmentation Effects On Birds In Grasslands And Wetlands: A Critique Of Our Knowledge, Douglas Johnson

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Habitat fragmentation exacerbates the problem of habitat loss for grassland and wetland birds. Remaining patches of grasslands and wetlands may be too small, too isolated, and too influenced by edge effects to maintain viable populations of some breeding birds. Knowledge of the effects of fragmentation on bird populations is critically important for decisions about reserve design, grassland and wetland management, and implementation of cropland set-aside programs that benefit wildlife. In my review of research that has been conducted on habitat fragmentation, I found at least five common problems in the methodology used. The results of many studies are compromised by …

Winter Severity And Wolf Predation On A Formerly Wolf-Free Elk Herd, L. David Mech, Douglas W. Smith, Kerry M. Murphy, Daniel R. Macnulty

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

We studied wolf (Canis lupus) predation on elk (Cervus elaphus) in Yellowstone National Park from 17 March to 15 April 1997 (severe winter conditions) and from 2 to 31 March 1998 (mild winter conditions) 2-3 years after wolves were reintroduced to the park. Elk composed 91% of 117 kills. Data comparisons for 1997 versus 1998 were: hunting success rate, 26% versus 15%; kill rate, 17.1 kg/wolf/day versus 6.1; percent of kill consumed in first day, 7 versus 86; percent femur marrow fat of adult kills, 27 versus 70; calf:adult ratios of kills, 2:33 versus 17:23; sex …

The Role Of Predation In Wildlife Population Dynamics, Eric M. Gese, Frederick F. Knowlton

United States Department of Agriculture Wildlife Services: Staff Publications

The role predation plays in the dynamics of prey populations is controversial. Our understandings of predator-prey relationships is complicated by a multitude of factors in the environment and a general lack of knowledge of most ecological systems. Various other factors, besides predation, may regulate or limit prey populations, and various factors influence the degree to which predation affects prey populations. Furthermore, some factors may create time lags, or even cause generational effects, that go unnoticed. Herein, we review the role of predation in wildlife population dynamics, some of the factors influencing predator-prey interactions, and attempt to indicate where the professional …

Mapping And Monitoring Of Coral Communities And Their Spatial Patterns Using A Surface-Based Video Method From A Vessel, Bernhard Riegl, Jan L. Korrubel, Charles Martin

Marine & Environmental Sciences Faculty Articles

No Abstract Provided.

Degradation Of Reef Structure, Coral And Fish Communities In The Red Sea By Ship Groundings And Dynamite Fisheries, Bernhard Riegl

Marine & Environmental Sciences Faculty Articles

Reef degradation was investigated on 66 Egyptian Red Sea reefs—60 reefs for dynamite damage (using line transects) and six ship grounding sites (using 1 m sample squares). Ship groundings and dynamite fishing caused similar damage, reduction of the reef to rubble (65% of reefs were dynamited, mostly leeward, 58%). Changes in coral (line transect study) and fish communities (point count study) in impacted sites were documented. On impacted reefs, coral cover decreased, bare substratum and rubble increased, and fish dominance shifted away from Pomacentridae. Oceanographic conditions result in a stable pattern of coral communities (windward Acropora, leeward Porites). …

2001 Grizzly Football Yearbook, University Of Montana--Missoula. Athletics Department

Grizzly Football Yearbook, 1939-2018

Annual yearbook of the University of Montana’s Athletics Department. This volume covers the period from fall 2001 through spring 2002.

Evolving Presidential Policy Toward Livestock Grazing In National Monuments, Andy Kerr, Mark Salvo

Penn State Environmental Law Review (1991 - 2011)

No abstract provided.

Evolving Presidential Policy Toward Livestock Grazing In National Monuments, Andy Kerr, Mark Salvo

Penn State Environmental Law Review (1991 - 2011)

No abstract provided.

Low-Income Homeownership In Portland's Albina Community: A Comparative Analysis Of Housing Quality In Market-Rate And Subsidized Houses, Carolyn Emily Collopy

Dissertations and Theses

The purpose of this study was to detem1ine which of these two options, market-rate or subsidized, offer higher quality affordable housing to low and moderate-level income households. Through field observation and GIS analysis, the study compared the structural, block, neighborhood amenity, crime, and proximity to CBD characteristics of affordable market-rate and subsidized houses in Portland's Albina Community. The study samples were approximately 100 houses per sample; market-rate houses consisted of houses that sold during 2000 for $125,000 or less, and subsidized houses were selected from housing created by three local non-profit development agencies.

General characteristics of the two samples revealed …

Spatial And Temporal Variability In Nest Success Of Snail Kites In Florida : A Meta-Analysis, Victoria J. Dreitz, Robert E. Bennetts, Brian Toland, Wiley M. Kitchens, Michael W. Collopy

Wildlife Biology Faculty Publications

Nesting success of Snail Kites (Rostrhamus sociabilis) in Florida is highly variable among years and locations, and hydrology is the most frequently reported explanatory factor. We conducted a meta-analysis to evaluate the extent of spatial and temporal variability in nesting success, and explicitly tested for the effects of annual minimum water levels. Data were obtained from six independent studies spanning 22 years and 11 wetlands. Our results indicated there was substantial spatial and temporal variability in nest success and that annual minimum water level, either as a categorical or continuous response, was not a significant source of this …

Canadian Cooperative Wildlife Health Centre, Volume 8-1, Summer 2001

Canadian Cooperative Wildlife Health Centre: Newsletters and Publications

Raptor Carcasses Needed for Assessment of Lead Exposure: CWS and CCWHC cooperative project
Radio-telemetry for Detecting and Understanding Disease
Update on West Nile Virus in North America
French heartworm in red fox and domestic dogs in Newfoundland
Raccoon Rabies Reaches New Brunswick
Neurological Disease in Moose in Nova Scotia
Brain Abscesses in White-tailed Deer
Suspected predation by ravens on nesting painted turtles
Marine Mammals in British Columbia
Chronic Wasting Disease in free-ranging mule-deer in Saskatchewan

Abstracts Of Papers, 79th Annual Meeting Of The Virginia Academy Of Science, May 22-25, 2001, James Madison University, Harrisonburg, Virginia

Virginia Journal of Science

Abstracts of papers that were presented at the 79th Annual Meeting of the Virginia Academy of Science, May 22-25, 2001, James Madison University, Harrisonburg, Virginia.

The Physiology Of Life History Trade-Offs In Animals, Anthony J. Zera, Lawrence G. Harshman

Anthony Zera Publications

The functional causes of life history trade-offs have been a topic of interest to evolutionary biologists for over six decades. Our review of life history trade-offs discusses conceptual issues associated with physiological aspects of trade-offs, and it describes recent advances on this topic. We focus on studies of four model systems: wing polymorphic insects, Drosophila, lizards, and birds. The most significant recent advances have been: (a) incorporation of genetics in physiological studies of trade-offs, (b) integration of investigations of nutrient input with nutrient allocation, (c) development of more sophisticated models of resource acquisition and allocation, (d) a shift to more …

Invasion Genetics Of New World Medflies: Testing Alternative Colonization Scenarios, Andrew J. Bohonak, Neil Davies, Francis X. Villablanca, George K. Roderick

Biological Sciences

The Mediterranean fruit fly (Ceratitis capitata) is an invasive agricultural pest with a wide host range and a nearly global distribution. Efforts to forgo the medfly''s spread into the United States are dependent on an understanding of population dynamics in newly established populations elsewhere. To explore the potential influence of demographic and historical parameters in six medfly populations distributed from Mexico to Peru, we created population genetic null models using Monte Carlo simulations. Null expectations for genetic differentiation (F _ST) were compared with actual sequence variation from four highly polymorphic nuclear loci. Four colonization scenarios that …

E. Franklin Frazier's Theory Of The Black Family: Vindication And Sociological Insight, Clovis E. Semmes

The Journal of Sociology & Social Welfare

Despite many accolades, E. Franklin Frazier, the first African American to be elected to the American Sociological Society, is also an object of scorn. Specifically, some accuse Frazier of a view that blames the ills of the Black community on female-headed households, illegitimacy, and family disorganization. Some also accuse Frazier of characterizing the Black family as broken and pathological and the opinion that families must be formal and nuclear in order to be viable. This paper argues that these representations of Frazier are mistaken and offers a more accurate and holistic portrayal of Frazier's sociological judgements and theorizing regarding the …