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The Role Of Colonization In Establishing Patterns Of Community Composition And Diversity In Shallow-Water Sedimentary Communities, Paul V. R. Snelgrove, J. Frederick Grassle, Judith P. Grassle, Rosemarie F. Petrecca, Karen I. Stocks

Journal of Marine Research

To determine whether pattern and diversity in benthic sedimentary communities are set primarily at colonization or by post-settlement biological interactions, we collected faunal cores and conducted reciprocal sediment transplant experiments at a sandy and a muddy site at 12 m depth, ~3 km apart off New Jersey. Multivariate analyses of cores collected at these sites in September 1994 indicated differences in the taxa determining local pattern, with the bivalve Spisula solidissima and the polychaete Polygordius sp. being dominant at the sandy site, and oligochaetes, several polychaete species and the bivalve Nucula annulata dominant at the muddy site. Individual cores from …

Annual Reports Of The Town Of Gilford, New Hampshire, For The Year Ending December 31, 2000., Gilford Town Representatives

Gilford, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

A Dynamic Analysis Of The Global Timber Market Under Global Warming: An Integrated Modeling Approach, Dug Man Lee, Kenneth S. Lyon

Economic Research Institute Study Papers

We developed a dynamic integrated modeling approach to identify the effect of global warming on the global timber market. The Timber Supply Model 2000, BlOME 3, and Hamburg were used as a suitable economic and ecological model. The TSM 2000 was adopted to model dynamic economic behavior in the global timber market. BlOME 3 was utilized as our steady state ecological model, and Hamburg as our general circulation model. The TSM 200 was developed to consider more important up-to-date components in the global timber market. We estimated dynamic ecological change based on the simulation results of BlOME 3 using Hamburg …

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HIMALAYA, the Journal of the Association for Nepal and Himalayan Studies

No abstract provided.

Aquilegia, Vol. 25 No. 5, July-August 2001: Newsletter Of The Colorado Native Plant Society, Tina Jones, Rob Udall, Myrna P. Steinkamp, Tamara Naumann, Sally White, Bobbie Henig, Janet Wingate

Aquilegia - Colorado Native Plant Society

No abstract provided.

Suggestions For Presenting The Results Of Data Analysis, David R. Anderson, William A. Link, Douglas H. Johnson, Kenneth P. Burnham

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

We give suggestions for the presentation of research results from frequentist, information-theoretic, and Bayesian analysis paradigms, followed by several general suggestions. The information-theoretic and Bayesian methods offer alternative approaches to data analysis and inference compared to traditionally used methods. Guidance is lacking on the presentation of results under these alternative procedures and on nontesting aspects of classical frequentist methods of statistical analysis. Null hypothesis testing has come under intense criticism. We recommend less reporting of the results of statistical tests of null hypotheses in cases where the null is surely false anyway, or where the null hypothesis is of little …

Statistics For Wildlifers: How Much And What Kind?, Douglas H. Johnson, Terry L. Shaffer, Wesley E. Newton

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

Quantitative methods are playing increasingly important roles in wildlife ecology and, ultimately, management. This change poses a challenge for wildlife practitioners and students who are not well educated in mathematics and statistics. Here we give our opinions on what wildlife biologists should know about statistics, while recognizing that not everyone is inclined mathematically. For those who are, we recommend that they take mathematics coursework at least through calculus and linear algebra. They should take statistics courses that are focused conceptually, stressing the "why" rather than the "how" of doing statistics. For less mathematically oriented wildlifers, introductory classes in statistical techniques …

Managing Minnesota's Recovered Wolves, L. David Mech

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

The Minnesota wolf (Canis lupus) population was estimated by the Minnesota Department of Natural Resources at 2,450 during winter 1997-1998 and had increased at an average annual rate of 4.5°% since winter 1988-1989. The population may be removed from the federal endangered species list by 2002, and management would then return to the state. A federal recovery team recommended a population goal of 1,250-1,400 wolves for Minnesota, with none in the agricultural region. A plan approved by the Minnesota legislature, however, continues the protection of wolves, except for pet and livestock depredation control, for at least 5 years …

Livestock Grazing In The Great Himalayan National Park Conservation Area--A Landscape Level Assessment, B. S. Mehra, P. K. Mathur

HIMALAYA, the Journal of the Association for Nepal and Himalayan Studies

No abstract provided.

Research Synopsis: Land Management In Mugu District Of Western Nepal: Power, Cultural Practices And Ecological Conditions, Andrea Nightingale

HIMALAYA, the Journal of the Association for Nepal and Himalayan Studies

No abstract provided.

Ecoregions Of Nebraska And Kansas, Robert F. Diffendal Jr.

Robert F. Diffendal, Jr., Publications

Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources; they are designed to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. Ecoregions are directly applicable to the immediate needs of state agencies, including the development of biological criteria and water quality standards, and the establishment of management goals for nonpoint-source pollution. They are also relevant to integrated ecosystem management, an ultimate goal of most federal and state resource management agencies. The approach used to compile this map is based on the premise …

Chapter 08: Conclusions And Recommendations, David Layne Coppock, Corinne Valdivia, Jim Yazman, Christian Jetté, João S. De Queiroz, Lisa Markowitz, Isaac M. Ortega

Sustaining Agropastoralism on the Bolivian Altiplano: The Case of San José Llanga

Here we review brief summaries by chapter and then derive some integrated conclusions across chapters. Recommendations are presented with respect to further research, outreach and policy consideration. Because several years have passed between the end of our field work and publication of this synthesis volume, we end with an epilogue that highlights changes and key events that happened at San José Llanga (SJL) and with collaborating institutions in Bolivia between 1996-9.

Teaching And Learning In The School Garden, Elizabeth Lynn Waddell

Theses Digitization Project

This project was created to encourage educators to establish school site gardens. Gardens provide the opportunity to introduce environmental topics, and can become hands-on learning centers for subjects across the course of study.

An Environmental Education Field Guide For Mystic Lake Wetland Habitats, Linda Jean Ellingston

Theses Digitization Project

This curriculum guide is for grades four through six. It examines how wetlands, wildlife, and people interact and depend upon each other. The San Jacinto Valley wetland area is used as an example of wetland habitat destruction from population pressures that have changed the natural landscape. It is also used as an example of what habitat reconstruction can do to restore vital habitats. Through student contact with the wetlands increased awareness of the fragile interrelationships between the physical and biological components of a wetland habitat is gained. Students can use ecological themes to help them assimilate collected and given data …

The Gray Wolves (Canis Lupus) Of British Columbia’S Coastal Rainforests, Chris T. Darimont, Paul C. Paquet

Biogeography and Ecological Opportunity Collection

The mainland coast of British Columbia (BC) is a remote area that is comparatively free from human-caused disturbance. However, concerns about current and anticipated increases in industrial forestry activity have prompted conservation biologists to investigate the biota in this understudied region. We were commissioned by the Raincoast Conservation Society to study coastal wolves so that information could be incorporated into ongoing conservation planning and education efforts. The summer of 2000 marked the pilot season of a multi-year research project. Our team spent more than 240 person days in the field during the summer and fall seasons. We surveyed 18 mainland …

Sclerosponges: Potential High-Resolution Recorders Of Marine Paleotemperatures, Gary B. Hughes, Charles W. Thayer

Statistics

Sclerosponges have great potential as seawater temperature recorders. These animals precipitate their skeletons in carbon and oxygen isotopic equilibrium with the surrounding seawater (Druffel and Benavides, 1986). Their skeletons also display chemical properties that vary directly with changes in environmental conditions. Lack of photosynthetic symbionts allows sclerosponges to live below the photic zone, providing the potential to investigate past marine conditions beyond the range of corals. Individual sponges live for several centuries, preserving archives of pre-and postindustrial seawater variations within single specimens (Hartman and Reiswig, 1980). Cross-correlation of successively older specimens could yield up to 2000 years of marine history. …

Effects Of Improved Fallows On The Diversity Of Plant-Parasitic Nematodes In The Agroforestry Systems Of Western Kenya, Tacko Serigne Kandji

All PhD Dissertations

In recent years, fast growing nitrogen-fixing shrubs of the family Fabaceae, Sesbania sesban (L.) Merr., Crotalaria grahamiana Wight & Arn. and Tephrosia vogelii Hook. f., have been intensively used in western Kenya to improve soil fertility, control soil erosion and increase crop yield. Local farmers have recognised the benefits of rotating these plant species with crops, and this has facilitated the rapid spread of this improved fallow technology in the area. Research has been conducted to understand the implications of this new land use system vis-a-vis the physical, chemical and biological characteristics of the soil. The scope of this study …

Counting Cranes: How Much Effort Is Enough?, Douglas H. Johnson, Roderick C. Drewien, Douglas S. Benning

Proceedings of the North American Crane Workshop

Accurate population estimates of sandhill cranes (Grus canadensis) are important because management decisions, such as establishing hunting regulations, are based on those estimates. Counts often are made during aerial surveys when the cranes are congregated. A complete census may be feasible if the area to be surveyed is small and adequate resources are available. For large areas, resources may be inadequate for a census so partial counts (sample surveys) are made. Because cranes are gregarious, the counts in a sample of units may contain either a disproportionately large, or a disproportionately small, fraction of the total, leading to …

Integrating Environmental Education Into The Curriculum Through Environmental Community Service Learning, Jay Allen Westover

Theses Digitization Project

The goal of environmental education is to increase individuals' ecological knowledge, awareness of associated environmental problems, and motivation to evaluate and implement solutions. This project combined the concepts of environmental education with community service learning to create a new method of curriculum integration: environmental community service learning. The California state standards for environmental education, service learning, language arts, mathematics, science, and social studies were integrated into four thematic units using the teaching methodologies of cooperative learning, authentic assessment, and reflection. The integrated, thematic units of this project could be used by educators in a multi-disciplinary, team teaching scenario on in …

Fungi Associated With Biological Soil Crusts In Desert Grasslands Of Utah And Wyoming, Jack S. States, Martha Christensen

Canyonlands Research Bibliography

No abstract provided.

Nocturnal Roost Site Selection And Diurnal Habitat Use By Sandhill Cranes During Spring In Central Nebraska, Craig A. Davis

Proceedings of the North American Crane Workshop

During spring 1998 and 1999, the Platte River Whooping Crane Maintenance Trust conducted ground and aerial surveys of staging sandhill cranes (Grus canadensis; hereafter, cranes) to detennine roost site selection and habitat-use patterns along a l20-Ian stretch of the Platte River in south-central Nebraska. Cranes peaked at 232,023 during 22-28 March 1998 and 206,074 during 28 Februaty-6 March 1999 in the study area, a portion of the total crane staging area in the Platte River Valley. Diurnal observations showed that 48% of the cranes were in com fields, 34% in lowland grasslands, 13% in alfalfa fields, and 5% …

Crop Watch No. 2001-19, August 3, 2001, Lisa Brown Jasa

Crop Watch (1994–2005)

Field Updates..........168

Western Nebraska Insects..........170

Western Wheat Yields..........171

Preventing Wheat Diseases..........171

Bacterial Stalk Rot in Corn..........172

Soybean Field Days..........173

2nd ECB Flight..........174

Planting Alfalfa..........174

Terminating Farm Leases..........175

Wright's Research Areas..........176

Forage Options..........176

2001 Commencement Program, Seattle University

Commencement Programs

No abstract provided.

Parenting And Child Competence: A Longitudinal Investigation Of The Moderating Influences Of Ethnicity, Family Socioeconomic Status, And Neighborhood Quality, Eric Curtis Dearing

Doctoral Dissertations

Although there is considerable evidence that parenting influences the behavioral, cognitive, emotional, and social development of children, the effects of some parenting behaviors may not be universal. In the present study, child ethnicity, family socioeconomic status, neighborhood quality (i.e., crime and median income), and cumulative risk (i.e., composite of family socioeconomic status and neighborhood quality) were modeled as potential moderators of associations between parenting (i.e., maternal sensitivity and traditional values) and four child outcomes (i.e., behavior problems, depression, loneliness, and school performance). Pathways of mediation for these parenting measures were also explored. In addition, age trends in neighborhood effects were …

Ecology: Introduction, Sheila Conant

Studies in Avian Biology

No abstract provided.

The Evolution Of Virtual Ecology, Alan Kamil, Alan B. Bond

Alan Bond Publications

The relationship between the perceptual and cognitive abilities of predatory birds and the appearance of their insect prey has long been of intense interest to evolutionary biologists. One classic example is crypsis, the correspondence between the appearance of prey species and of the substrates on which they rest which has long been considered a prime illustration of effects of natural selection, in this case operating against individuals that were more readily detected by predators (Poulton 1890; Wallace 1891). But the influences of predator psychology are broader, more complex, and more subtle than just pattern matching. Many cryptic prey, including the …

Ecological Sustainability For Pastoral Management, Hugh Pringle, Ken Tinley

Journal of the Department of Agriculture, Western Australia, Series 4

Pastoralists and rangeland bureaucracies are now required to operate within the limits of ecological sustainability. However, while the concept of ecological sustainability has been enshrined in law and policy at State and Commonwealth levels in Australia, there has been little translation into pastoral management objectives. The introduction of the 'EMU (Ecosystem Management Unit) process', as an equal partnership between ecologists and pastoralists, promises to bring pastoralists into close dialogue with the landscapes they manage on their stations, and to acknowledge and manage for values other than pasture production. In doing so, pastoralists are likely to increase production, reduce costs, and …

Ornithology Of Sabah: History, Gazetteer, Annotated Checklist, And Bibliography, Frederick H. Sheldon, Robert G. Moyle, Jody Kennard

Ornithological Monographs

No abstract provided.

Comparing Two Methods To Determine Nest Location Of Golden Mice (Ochrotomys Nuttalli), Anita T. Morzillo, George A. Feldhamer

Publications

Fluorescent powder tracking was compared with radiotelemetry to locate nests used by golden mice (Ochrotomys nuttalli), a semi-arboreal species. Fluorescent powder was not a successful method for determining nest location or movement patterns for golden mice. Many golden mice immediately climbed trees, whereas white-footed mice remained on the ground. Weather conditions can negatively affect the success of powder tracking. Although radiotelemetry successfully determined the locations of occupied nests, precise estimates of movements within a microhabitat could not be made.

Persistence Of Aspen Regeneration Near The National Elk Refuge And Gros Ventre Valley Elk Feedgrounds Of Wyoming, D.T. Barnett, T.J. Stohlgren

Aspen Bibliography

We investigated aspen (Populus tremuloides) regeneration in the Gros Ventre River Valley, the National Elk Refuge, and a small part of Grand Teton National Park, Wyoming, to see if elk (Cervus elaphus) browsing was as damaging as previously thought. We conducted a landscape-scale survey to assess aspen regeneration across gradients of wintering elk concentrations using 68 randomly selected aspen stands in the 1,090 km2 study area. Forty-four percent of the stands sampled supported regeneration of saplings (stems greater than 2 m in height but less than 10 cm in diameter). There were no significant differences of regeneration across elk winter …