Digital Commons Network^™

Historical Biogeography Of Lowland Species Of Toads (Bufo) Across The Trans-Mexican Neovolcanic Belt And The Isthmus Of Tehuantepec, Benson H. Morrill

Undergraduate Honors Capstone Projects

The eastern extension of the massive Trans-Mexican Neovolcanic Belt 1 (TMNB) contacts the Atlantic Coast in central Veracruz, Mexico. Although it is not a massive structure at this eastern terminus, the TMNB has nonetheless effected vicariance and subsequent speciation in several species groups, including bufonid toads and freshwater fishes. In this study, we examined mtDNA sequences (cyt b, 16S) from populations of two different species groups of toads (B. marinus, and the B. nebulifer-B. valliceps species pair) from a lowland transect across the eastern end of the TMNB. We also included samples from outside this region (e.g., Costa …

Planting Date Effects On The Germinability And Seedling Vigor Of Abutilon Theophrasti Seeds, R E. Nurse, A Ditommaso, Ricardo A. Ramirez

Biology Faculty Publications

Abutilon theophrasti (Malvaceae) is a troublesome annual weed in many maize and soybean cropping systems of Canada and the United States. Seeds of A. theophrasti exhibit physical dormancy. Differences in the growing environment of parent plants may influence the germinability of seeds and vigour of seedlings produced by this species because of variation in resource allocation to seed development. Thus, the germinability of seeds and subsequent seedling vigour were examined for A. theophrasti plants grown in monoculture at a density of 4.2 plants m -2 under varying natural photoperiods in central New York State. Treatments were established by transplanting A. …

Landscape Assessment For The Buckskin Mountain Area, Wildlife Habitat Improvement, Bureau Of Land Management

All U.S. Government Documents (Utah Regional Depository)

No abstract provided.

16 Less Common Trees For Utah Landscapes: Diversifying Utah's Community Forests, Heidi Kratsch, Michael R. Kuhns

All Current Publications

This fact sheet provides descriptions of 16 tree species that are less commonly planted in Utah towns and cities.

Irrigation System Maintenance, Kelly Kopp, Jennie Hoover

CWEL Extension Fact Sheets

No abstract provided.

Silage Corn Performance, 2002; Cache, Davis, And Utah Counties, Utah, T. C. Griggs, J. V. Barnhill, C. E. Israelsen, F. D. Miner, M. M. Guenter, D. D. Knudsen

All Current Publications

No abstract provided.

Silage Corn Performance, 2003; Cache And Davis Counties, Utah, T. C. Griggs, J. V. Barnhill, C. E. Israelsen, K. Pack, D. R. Fillmore, D. D. Knudsen

All Current Publications

No abstract provided.

Managing Forests For Water Quality: Stream Crossings, Barbara Daniels, Darren Mcavoy, Michael R. Kuhns, Ron Gropp

All Current Publications

No abstract provided.

Grain Corn Performance, 2001; Box Elder And Millard Counties, Utah, T. C. Griggs, M. G. Pace, T. A. Reeve, R. F. Sessions

All Current Publications

No abstract provided.

Silage Corn Performance, 2001; Cache, Davis, And Millard Counties, Utah, T. C. Griggs, J. V. Barnhill, M. G. Pace, R. F. Sessions, R. L. Cartee, D. D. Knudsen

All Current Publications

No abstract provided.

Bent Leg Of Rams, Clell Bagley

All Current Publications

No abstract provided.

Irrigated Alfalfa Vaariety Performance, 1999-2002; Kaysville, Utah, Michael Bouck, Ralph Whitesides, Thomas Griggs, R. F. Sessions, J. S. Murdock, D. A. Chandler

All Current Publications

This report summarizes alfalfa yields from four harvest years of an irrigated trial at the Utah Agricultural Experiment station research farm at Kaysville, Cavis Co.

Vegetation Exclosures In Utah: What Can They Tell Us About Long-Term Range Trends?, William A. Adair, John A. Bissonette

Wildland Resources Faculty Publications

Exclosures are flexible range management tools that can be used to simultaneously:

• Clarify conflicts between wild and domestic herbivores and their advocates;

• Evaluate herbivore influence on range productivity and composition;

• Monitor long-term trends and changes in range condition; and

• Identify the normal range of variation characteristic of natural plant communities.

Alfalfa Variety Selection Guidelines, Thomas Griggs

All Current Publications

This fact sheet provides guidelines for selecting the right alfalfa variety and includes preliminary site and end-use consideration, variety selection based on plant traits, and seed quality and treatment considerations.

Restoration Of Aspen Woodland Invaded By Western Juniper: Applications Of Partial Cutting And Prescribed Fire, Jonathon D. Bates, Richard F. Miller

Aspen Bibliography

Western juniper (Juniperus occidentalis spp. occidentalis) woodlands are rapidly replacing quaking aspen (Populus tremuloides) stands throughout the northern Great Basin. Aspen stands provide important habitat for many wildlife species and contain a high diversity of understory shrubs and herbaceous species. We studies two juniper removal treatments to restore aspen woodlands in Kiger Canyon on Steens Mountain, Oregon.

Pastoral Risk Management In Southern Ethiopia: Observations From Pilot Projects Based On Participatory Community Assessments, D. Layne Coppock, Solomon Desta, Seyoum Tezera, Rancis K. Lelo

Environment and Society Faculty Publications

The Borana pastoral system has come under increasing pressure as human populations grow and per capita availability of resources declines. Livestock exhibit large, periodic die-offs that threaten wealth accumulation and food security. Several types of interventions may improve risk management here. For example, there may be opportunity for some pastoralists to diversify their livelihoods. Here we report on a community-based process involving pilot projects begun since 2000. We have embraced Participatory Rural Appraisal (PRA) and Action Research (AR) as tools for investigation and empowerment of local people. Full PRAs were conducted for semi-settled communities, located near towns, to identify priority …

Guidelines For Visual Assessment Of Herbage Mass In Pastures, Thomas Griggs, K. Pack

All Current Publications

This fact sheet provides pasture managers with a technique to improve their abilities to budget forage to livestock and determine amounts of forage to reserve for mechanical harvest. They can also use the technique to estimate harvest efficiency and pasture growth rates, forecast future forage supply and plan adjustments in stocking rate to balance forage supply with livestock demand.

Utah County Master Gardeners Tour Suggestions, Larry Sagers

All Archived Publications

No abstract provided.

Propagation From Cuttings, Larry A. Sagers, Gary Fawson

All Archived Publications

No abstract provided.

Propagation By Grafting And Budding, Larry A. Sagers

All Archived Publications

No abstract provided.

Master Gardener Program, Larry A. Sagers

All Archived Publications

No abstract provided.

Planting Landscape Trees, Larry A. Sagers

All Archived Publications

No abstract provided.

Plant Growth And Development, Larry A. Sagers

All Archived Publications

No abstract provided.

Plant Translation, Larry A. Sagers

All Archived Publications

No abstract provided.

Plant Disease Management, Larry A. Sagers

All Archived Publications

No abstract provided.

2003 Annual Report, Various Authors

Annual Reports

No abstract provided.

Growing Bulbs In Utah, Larry A. Sagers

All Archived Publications

No abstract provided.

New Seed Varieties, Larry A. Sagers

All Archived Publications

No abstract provided.

Baseline Protocols, John Harrison, Dallen Smith, Aditya Toney

All Current Publications

University researchers and Extension specialist in 11 states are currently evaluating the impact of voluntary environmental management systems (EMS) for agricultural operations. This evaluation is being conducted through a series of studies with a wide variety of agriculture production operators that voluntarily choose to participate and share information on the design and implementation of their EMSs (Harrison, 2002, and Partnership for Livestock Environmental Management Systems, 2004).

Electronic Manure Handling Process Map, John Harrison, Aditya Toney

All Current Publications

Implementation of an Agriculture Environmental Management System (AEMS) is intended to result in improved environmental performance (Block, 1999; Harrison, 2002). Agriculturalists are generally unfamiliar with the terms ‘aspects and impacts’ (Jackson, Kirschner, Serber, Koelsch, Risse & Bird, personal communication, December 17, 2001).