Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (19928)
- Animal Sciences (9731)
- Physical Sciences and Mathematics (8180)
- Environmental Sciences (7330)
- Social and Behavioral Sciences (3665)
-
- Agriculture (3180)
- Ecology and Evolutionary Biology (3150)
- Medicine and Health Sciences (3104)
- Plant Sciences (2933)
- Zoology (2818)
- Education (2559)
- Biodiversity (2118)
- Ornithology (2113)
- Natural Resources and Conservation (2101)
- Environmental Health and Protection (2009)
- Veterinary Medicine (1816)
- Arts and Humanities (1788)
- Other Environmental Sciences (1729)
- Natural Resources Management and Policy (1644)
- Terrestrial and Aquatic Ecology (1640)
- Poultry or Avian Science (1600)
- Entomology (1580)
- Immunology and Infectious Disease (1495)
- Population Biology (1412)
- Engineering (1398)
- Parasitology (1175)
- Meat Science (1140)
- International and Area Studies (1110)
- Agricultural Science (1063)
- Veterinary Preventive Medicine, Epidemiology, and Public Health (1053)
- Keyword
-
- Extension circular (788)
- Nebraska (651)
- Cattle (313)
- Invasive species (242)
- Swine (234)
-
- Management (226)
- Agriculture (223)
- Publications (200)
- Livestock (197)
- Control (193)
- Beef (183)
- Reproduction (178)
- Beef cattle (173)
- University of Nebraska (165)
- Nutrition (160)
- Corn (144)
- Grus americana (142)
- Disease (140)
- Cooperative Extension (139)
- Nebraska Cooperative Extension (136)
- Birds (133)
- Conservation (133)
- Extension publications (132)
- Pigs (125)
- Sorghum (125)
- Sheep (123)
- Guide (122)
- Growth (121)
- Coyote (120)
- Sus scrofa (118)
- Publication Year
- Publication
-
- United States Department of Agriculture Wildlife Services: Staff Publications (2570)
- University of Nebraska-Lincoln Extension: Historical Materials (1492)
- Nebraska Bird Review (1477)
- Nebraska Beef Cattle Reports (1281)
- Department of Animal Science: Faculty Publications (1280)
-
- United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications (1269)
- School of Natural Resources: Faculty Publications (659)
- Harold W. Manter Laboratory of Parasitology: Faculty Publications (570)
- School of Biological Sciences: Faculty Publications (561)
- Roman L. Hruska U.S. Meat Animal Research Center: Reports (539)
- Department of Agronomy and Horticulture: Faculty Publications (510)
- United States Geological Survey: Staff Publications (481)
- Proceedings of the North American Crane Workshop (424)
- United States Fish and Wildlife Service: Publications (405)
- Textile Society of America: Symposium Proceedings (403)
- Great Plains Wildlife Damage Control Workshop Proceedings (365)
- School of Veterinary and Biomedical Sciences: Faculty Publications (365)
- NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County (362)
- University of Nebraska Historical Extension: Bulletin (356)
- Range Beef Cow Symposium (351)
- Department of Psychology: Faculty Publications (339)
- United States Department of Commerce: Staff Publications (339)
- Agricultural Research Division: News and Annual Reports (330)
- Great Plains Quarterly (through 2013) (327)
- Department of Entomology: Faculty Publications (318)
- Department of Animal Science: Dissertations, Theses, and Student Research (301)
- University of Nebraska State Museum: Mammalogy Papers (299)
- Insecta Mundi (294)
- Nebraska Swine Reports (291)
- Great Plains Research: A Journal of Natural and Social Sciences (through 2013) (285)
- Publication Type
- File Type
Articles 32581 - 32610 of 38015
Full-Text Articles in Entire DC Network
Utilizing A Computerized Fish And Wildlife Information System To Solve Animal Damage Control Problems, Jefferson L. Waldon, Charles T. Cushwa, Peter T. Bromley
Utilizing A Computerized Fish And Wildlife Information System To Solve Animal Damage Control Problems, Jefferson L. Waldon, Charles T. Cushwa, Peter T. Bromley
Eastern Wildlife Damage Control Conference: 2nd (1985)
Animal damage control professionals are faced with the monumental task of absorbing an enormous amount of literature about animal species. For example, one person cannot become an expert on all facets of dozens of species, much less the 1000 or more fish, reptiles, amphibians, mammals, and birds that fall under the wildlifer's jurisdiction. An important new aid to the wildlife damage control specialist is the computerized fish and wildlife information system (CFWIS). A CFWIS is a tool for systematically compiling and managing information about animal species which reside in a state. Cushwa and Kopf (1984) summarized the development of state …
Double-Crested Cormorant Damage To A Commercial Fishery In The Apostle Islands, Wisconsin, Scott R. Craven, Esther Lev
Double-Crested Cormorant Damage To A Commercial Fishery In The Apostle Islands, Wisconsin, Scott R. Craven, Esther Lev
Eastern Wildlife Damage Control Conference: 2nd (1985)
The endangered classification of the double-crested cormorant (DCC) in Wisconsin resulted in complete protection and significant management efforts in the 1970's., These efforts, probably coupled with reduced pesticide loads, resulted in a resurgence of Wisconsin cormorant populations from a low of 66 pairs in 1972 to 1028 pairs in 1982» The DCC was reclassified as a threatened species in 1982. This apparent success story did not take into consideration the potential negative impact of an abundant piscivorous bird. In 1978 a colony of DCC's became established on a remote rocky island in the Apostle Islands National, Lakeshore, in Lake Superior. …
Closing Remarks, F. Eugene Hester
Closing Remarks, F. Eugene Hester
Eastern Wildlife Damage Control Conference: 2nd (1985)
I am glad to be here to present the closing remarks before such a group of professionals who represent the many agencies and individuals who daily perform the delicate task of resolving animal damage conflicts. The segment of wildlife management that you represent is perhaps the most difficult to accomplish in view of existing public opinion and involvement.
Removal Of Nesting Starlings With Drc-1339, Douglas I. Hall
Removal Of Nesting Starlings With Drc-1339, Douglas I. Hall
Eastern Wildlife Damage Control Conference: 2nd (1985)
DRC-1339-treated crickets (Gryllus sp.) were utilized in an attempt to remove starlings (Sturnus vulgaris) nesting and rearing young in the aircraft hangars at the Little Rock Air Center, Little Rock, Pulaski County, Arkansas. Bait ratio of 1 treated to 5 untreated crickets was used. They were placed under airport night lights where foraging birds naturally gathered to feed on insects attracted to these lights. Adult starlings consumed the crickets as well as fed them to their young. Lethal control was achieved on both age classes of bird. Field test results show promise for the development of a …
Future Of Wildlife Damage Control And The Cooperative Extension Service, Peter T. Bromley
Future Of Wildlife Damage Control And The Cooperative Extension Service, Peter T. Bromley
Eastern Wildlife Damage Control Conference: 2nd (1985)
The driving forces which determine the role of the Cooperative Extension Service in wildlife damage control are (1) the demand for information by the public, (2) the degree of support for programs at the national level, and (3) the level of professionalism exhibited by Cooperative Extension Agents and subject matter Specialists. Analysis of several trends suggests that the Cooperative Extension Service role in Wildlife Damage Control will increase in coming years. The movement of urban people into rural settings will create greater demands for wildlife damage control information. Likewise, the expansion of wildlife population into urban and suburban environments due …
Usda Forest Service Role In Wildlife Damage Control, Hugh C. Black
Usda Forest Service Role In Wildlife Damage Control, Hugh C. Black
Eastern Wildlife Damage Control Conference: 2nd (1985)
Wildlife damage control is an important objective of resource management on the 191 million acres of National Forest System (NFS) lands administered by the USDA Forest Service. Policy on wildlife damage control is based on the USDA Policy on Fish and Wildlife (Secretary's Memorandum 9500-3, July 1983). The objective of wildlife damage control is to reduce damage and loss by wildlife on all NFS lands to levels consistent with management objectives. Control measures are only undertaken when and where necessary to realize wildlife management objectives and to prevent serious damage to public or private property and natural resources. Because of …
Landowner Tolerance Of Beavers: Implications For Damage Management And Control, Ken G. Purdy, Daniel J. Decker, Richard A. Malecki, John C. Proud
Landowner Tolerance Of Beavers: Implications For Damage Management And Control, Ken G. Purdy, Daniel J. Decker, Richard A. Malecki, John C. Proud
Eastern Wildlife Damage Control Conference: 2nd (1985)
Management of beaver (Castor canadensis) populations can be an effective way to create wetlands while at the same time producing a valued recreational and furbearer resource. Optimizing beaver populations for such a dual objective, however, requires careful integration of biological and sociological considerations in management planning. Knowledge of beaver population dynamics by itself is insufficient for sound management; human tolerance data also must be included in management decisions to reduce the potential of encountering problems that could impede the attainment of beaver-wetlands management objectives. Expansion of beaver into new areas often may be constrained by managers' perceptions of …
Computer Assisted Extension Program On Ground Squirrel Control, Terrell P. Salmon, Donald L. Lancaster, Leanne Lasarow
Computer Assisted Extension Program On Ground Squirrel Control, Terrell P. Salmon, Donald L. Lancaster, Leanne Lasarow
Eastern Wildlife Damage Control Conference: 2nd (1985)
Computers have become common place in virtually all phases of agriculture. Most individuals have access to microcomputers and the once apparent intimidation about using them is rapidly disappearing. Because of increased availability and public acceptance, it's no surprise that many Extension programs are using computers as an important component of their educational package. Recently, several computer models have been developed to assist Extension personnel and others in demonstrating proper wildlife damage control decision-making. We have developed such a model which is used to: 1) present ground squirrel control information to the grower, 2) take user (grower) input on production, yields, …
What You Wanted To Know About All You Ever Heard Concerning Snake Repellents, Gary J. San Julian
What You Wanted To Know About All You Ever Heard Concerning Snake Repellents, Gary J. San Julian
Eastern Wildlife Damage Control Conference: 2nd (1985)
Have you ever heard about a way to keep snakes away from your house? Many people in North Carolina have been told by their elders of various ways to repel snakes. When we first started working on this problem in North Carolina, we were amazed at the number of "home remedies" that people believed would protect their property from snakes; and we began to keep a record of these remedies. In 1981, a grant from the Pesticide Impact Assessment Program allowed us to begin to test some of these remedies to determine their value.
Preventive Control Of Pest Rodents, Walter E. Howard
Preventive Control Of Pest Rodents, Walter E. Howard
Eastern Wildlife Damage Control Conference: 2nd (1985)
With "preventive control" of pest rodents, by using rodent bait boxes (stations) on a permanent basis, there is no longer any biological, ecological, or economic reason for rodent pests or health problems to occur in villages, cities, and intensively cultivated agricultural areas, but not pastures or forests. Such pest rodents can usually be eliminated without endangering non-target species, quite inexpensively, simply, and in a more environmentally desirable manner than most current practices, where the pest rodents are not controlled until populations have built up, which requires large amounts of rodenticides. With preventive control, once the pest rodents have been controlled …
Participants
Eastern Wildlife Damage Control Conference: 2nd (1985)
List of participants
Comparisons Of Strychnine And Zinc Phosphide In Prairie Dog Control, H. Todd Holbrook, Robert M. Timm
Comparisons Of Strychnine And Zinc Phosphide In Prairie Dog Control, H. Todd Holbrook, Robert M. Timm
Eastern Wildlife Damage Control Conference: 2nd (1985)
Efficacy and safety are primary considerations in registration and use of toxicants for vertebrate pest control. Strychnine (0.5%) and zinc phosphide (2%) are currently registered by EPA for prairie dog control, but continued registration is uncertain. Two percent zinc phosphide bait has been suspected of producing lower and more erratic results than strychnine bait. In our study in western Nebraska in fall 1984, indices based on changes in burrow activity showed no difference in efficacy (P=0.66) or variability (P=0.7) of control for strychnine and zinc phosphide, however neither toxicant consistently gave effective control of blackballed prairie dogs. Costs for proper …
The Whooping Crane Cross-Fostering Experiment: The Role Of Animal Damage Control, Roderick C. Drewien, Stephen H. Bouffard, Desmond D. Call, Richard A. Wonacott
The Whooping Crane Cross-Fostering Experiment: The Role Of Animal Damage Control, Roderick C. Drewien, Stephen H. Bouffard, Desmond D. Call, Richard A. Wonacott
Eastern Wildlife Damage Control Conference: 2nd (1985)
Predator losses of endangered species in reintroduction programs are unacceptable because of the scarcity of the species and the major commitment of staff time and funds. When the whooping crane (Grus americana) cross-fostering experiment (experiment) at Grays Lake National Wildlife Refuge (Grays Lake), Idaho was proposed in 1972, animal damage control (ADC) was considered unnecessary. Sandhill crane (G. canadensis tabida) nest success was high and coyotes (Canis latrans) and red foxes (Vulpes Vulpes) were uncommon. Canids increased by the mid-1970's destroying whooping crane eggs and chicks. An ADC program initiated in 1976 …
Commercial Wildlife Pest Control Permits—An Alternative Approach—, Gerard W. Wendt
Commercial Wildlife Pest Control Permits—An Alternative Approach—, Gerard W. Wendt
Eastern Wildlife Damage Control Conference: 2nd (1985)
The Pennsylvania Game Commission has, throughout our existence, tried many new approaches to solve our wildlife/ human conflicts. In recent years, the District Game Protector has been plagued with calls requesting help with nuisance wildlife, especially in the high population urban areas. While the law provides for methods of dealing with deer and bear which cause damage to crops and related materials, little is included to simplify the situation created by small mammal wildlife pests. With limited manpower available, which has been further complicated as a result of the Supreme Court ruling regarding the Fair Labor Standards Act and overtime …
Role And Responsibilities Of Agencies For Wildlife Damage Control, Hal S. Atkinson Jr.
Role And Responsibilities Of Agencies For Wildlife Damage Control, Hal S. Atkinson Jr.
Eastern Wildlife Damage Control Conference: 2nd (1985)
The wildlife resources of the State belong to the people of the state as a whole. The Wildlife Resources Commission is charged with the stewardship of these resources and is empowered by general statute to promulgate those regulations deemed necessary to accomplish this charge. The Commission administers a management program designed to maintain wildlife populations at acceptable levels from both the sportsman's and landowners perspective. However, at times, both game and non-game species are involved in various conflicts with our human population. Our general statutes allow an owner or lessee of property to take without prior state approval any wildlife …
Relationship Between Seasonal Changes In Forage Quality And Feeding Patterns In Meadow Voles (Microtus Pennsylvanicus), Ronald J. Brooks, Stephen A. Struger
Relationship Between Seasonal Changes In Forage Quality And Feeding Patterns In Meadow Voles (Microtus Pennsylvanicus), Ronald J. Brooks, Stephen A. Struger
Eastern Wildlife Damage Control Conference: 2nd (1985)
Forage analyses revealed that mowed orchards provide a relatively high quality forage to meadow voles (Microtus pennsylvanicus), especially in the fall. Mowed forage was characterized by significantly higher protein and moisture content and significantly lower acid and neutral detergent fibre and lignin than forage from an abandoned orchard. Energy and fat were not significantly affected by mowing.. However, vole numbers declined markedly in mowed regions in comparison to undisturbed areas. Voles preferred to inhabit areas with dense cover even though vegetative dieback had occurred. Voles did not exhibit any distinct preference for either cracked corn (rodenticide carrier agent) …
Estimating Cost-Effectiveness Of Controlling Animal Damage To Conifer Seedlings, David S. Decalesta
Estimating Cost-Effectiveness Of Controlling Animal Damage To Conifer Seedlings, David S. Decalesta
Eastern Wildlife Damage Control Conference: 2nd (1985)
A model for determining the benefit-cost ratio of controlling damage by vertebrate pests to conifer seedlings requires knowledge of the amount, distribution, and duration of animal damage, reduction in damage associated with control, costs of control, methodology and value of trees at harvest. Because control costs occurring in the present must be compared with savings recovered decades later in the future, the model incorporates procedures for discounting or adjusting future monetary benefits into present net worth valuations,, The model allows forest managers to evaluate a wide range of damage costs and savings accruing from use of various control techniques. The …
An Evaluation Of Visual And Auditory Electronic Devices To Repel Deer, R. Blake Roper, Edward P. Hill
An Evaluation Of Visual And Auditory Electronic Devices To Repel Deer, R. Blake Roper, Edward P. Hill
Eastern Wildlife Damage Control Conference: 2nd (1985)
An electronic device that emitted auditory and visual stimuli was evaluated for repelling deer from hardwood plantations and soybean fields in Southwest Alabama from February 1976 through March 1978. Repellent effectiveness in hardwood plantations and in soybean fields was determined by comparing browsing damage on areas treated with the repellent stimuli against damage on control areas. No difference (P < 0.05) was detected in browsing damage between treated and control areas in either hardwood plantations or soybean fields. Browsing damage on soybeans continued when electronic stimuli were combined with electric fences, human scent rags, and periodic shooting, demonstrating the high degree of adaptability of the white-tailed deer as they attempt to utilize an available food supply.
Wildlife Damage Control - The Role And Responsibility Of The U.S. Fish And Wildlife Service, Leroy W. Sowl
Wildlife Damage Control - The Role And Responsibility Of The U.S. Fish And Wildlife Service, Leroy W. Sowl
Eastern Wildlife Damage Control Conference: 2nd (1985)
The doctrine of State ownership of wildlife was a part of the body of English common law transplanted to these shores by the original English settlers. The Crown conveyed ownership of many natural resources, and included wildlife in the patents it issued to the proprietors of plantations and colonies. When the provinces became States, they inherited ownership of wildlife.
Economic And Environmental Impacts Of Beavers In North Carolina, David K. Woodward, Robert B. Hazel, Brian P. Gaffney
Economic And Environmental Impacts Of Beavers In North Carolina, David K. Woodward, Robert B. Hazel, Brian P. Gaffney
Eastern Wildlife Damage Control Conference: 2nd (1985)
In 1984, a postal survey of landowners and managers was conducted in North Carolina concerning the presence of beavers (Castor canadensis) on their property. Major objectives of the survey were to determine: (1) current distribution and relative abundance of beavers in North Carolina, (2) the economic and environmental impacts from an apparently increasing beaver population, and (3) landowner attitudes toward these increasing populations. Of the 1,069 questionnaires returned, data was compiled from 456 landowners (43 percent) who confirmed the presence of beaver activity on their property during 1983. A significant increase in beaver numbers and distribution has occurred throughout much …
“Notes” From Nebraska Bird Review (September 1985) 53(3)
“Notes” From Nebraska Bird Review (September 1985) 53(3)
Nebraska Bird Review
RE SWAN GEESE IN KEITH COUNTY. A recent account (NBR 53:4) of Chinese Geese (domestic forms of the Swan Goose are called Chinese Geese –Ed.) in Keith County seems to suggest that the birds were of natural occurrence. No wild individuals of this species have ever been reported in North America, however, and it may in fact be declining in its native range. It is exceedingly common, though, in zoos and parks as well as on farms, where it is often only nominally a captive; birds are readily available and are not typically afforded the close watch given more valuable …
Hybrid Bluebirds In The Pine Ridge, Barbara L. Wilson, Jim Minyard, Hope Minyard, Tanya Bray
Hybrid Bluebirds In The Pine Ridge, Barbara L. Wilson, Jim Minyard, Hope Minyard, Tanya Bray
Nebraska Bird Review
A hybrid pair of bluebirds is raising young in Dawes County, Nebraska, in the yard of Jim and Hope Minyard, approximately 8 miles south of Crawford. The female of the pair is a Mountain Bluebird (Sialia currucoides). She is basically a dull gray bluebird, with little contrast between upperparts and underparts. There is no rusty or tan on her breast, and no sharp demarcation between the gray breast and the lighter belly. Her rump and the bases of her outer tail feathers are a light, bright blue, while the other tail feathers and the primaries are blackish. When …
Nebraska Bird Review (September 1985) 53(3), Whole Issue
Nebraska Bird Review (September 1985) 53(3), Whole Issue
Nebraska Bird Review
1984 Nebraska Nesting Survey … 46
1985 (Sixtieth) Spring Occurrence Report … 50
Hybrid Bluebirds in the Pine Ridge … 67
Notes … 67
Book Review … 68
The Prairie Naturalist Volume 17, No. 3. September 1985
The Prairie Naturalist Volume 17, No. 3. September 1985
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
TABLE OF CONTENTS
EFFECTS OF FIRE ON NUTRIENT AND ENERGY CONCENTRATION OF FIVE PRAIRIE GRASS SPECIES ▪ K. M. Ohr and T. B. Bragg
FOOD HABITS OF JUVENILE GIZZARD SHAD IN OPEN-WATER AND NEAR-SHORE HABITATS OF MELVERN RESERVOIR, KANSAS ▪ B. L. Todd and D. W. Willis
CHANGES IN BREEDING BLACKBIRD NUMBERS IN NORTH DAKOTA FROM 1967 TO 1981–82 ▪ J. F. Besser
RARE ANIMALS AND PLANTS OF SOUTH DAKOTA ▪ W. C. Houtcooper, D. J. Ode, J. A. Pearson, and G. M. Vandel III …
“Book Review” From Nebraska Bird Review (September 1985) 53(3)
“Book Review” From Nebraska Bird Review (September 1985) 53(3)
Nebraska Bird Review
The Bird Identification Calendar, 1986, illustrated in color by John Sill, 11 x 14, Stephen Greene Press in cooperation with The Massachusetts Audubon Society, distributed by Viking Penguin Inc., New York City.
The calendar space is full size; the over 70 illustrations and short paragraphs are on the facing page (back of the previous page). Also, two preliminary pages on bird identification in general.
1984 Nebraska Nesting Survey, Esther V. Bennett
1984 Nebraska Nesting Survey, Esther V. Bennett
Nebraska Bird Review
Data on the 1984 nesting season in Nebraska were received from 17 observers and organizations, reporting on 72 species from 36 counties or groups of counties. Counties in the tabulations are listed in a west to east order, with the northernmost of the approximately equal locations given first. Numbers represent Nest Record Cards; N represents nests observed for which no Nest Record Card was submitted; F represents feeding; CF represents carrying food; CN represents carrying nesting material; and Y represents young observed. GPC in the following paragraph represents Nebraska Game and Parks Commission. Thirty species were reported on 192 North …
1985 (Sixtieth) Spring Occurrence Report
1985 (Sixtieth) Spring Occurrence Report
Nebraska Bird Review
Two hundred ninety-two species, plus Clark’s Nutcracker, for which no specific dates were reported, and Lapland Longspur, which was not recorded, are listed in this report, from 22 locations. The comparable figures for 1984 are 293 and one possible, from 13 locations; 1983 288 and 2 possibles from 13; and 1982 287 from 15 locations.
Masthead From Nebraska Bird Review (September 1985) 53(3)
Masthead From Nebraska Bird Review (September 1985) 53(3)
Nebraska Bird Review
Published quarterly in March, June, September, and December by the Nebraska Ornithologists' Union, Inc., as its official journal and sent to all members who are not in arrears for dues. Subscriptions (on calendar year basis only) are $10.00 per year in the United States, $12.00 per year in Canada and Mexico, and $12.50 per year in all other countries, payable in advance. Single copies are $3.00 each, postpaid, in the United States; $3.50 elsewhere.
Memberships (on a calendar year basis only): Students, $.3.00; Active, $7.00; Sustaining, $15.00; Family Sustaining, $20.00; Life, $100.00.
All dues and subscriptions should be remitted to …
The Probe, Issue 56 - September/October 1985
The Probe, Issue 56 - September/October 1985
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE
National Animal Damage Control Association
September- October, 1985
The Justice Department has decreed that the transfer of ADC activities from Agriculture to Interior was illegal so no legislative action was needed to transfer ADC duties.
1080 Collar
Animal Right Activists on Garden Slugs
Professionalism – Commitment Beyond Employment by Jack W. Thomas Applied Wildlife Management
Elephant Rampage
2nd Eastern Wildlife Damage Control Conference
Legislation Scoreboard
National sample of individual attitudes towards 33 animals.
Olive-backed pipit
Personnel
Viewpoint: Forage And Range Research Needs In The Central Great Plains, Kenneth P. Vogel, H. J. Gorz, Francis A. Haskins
Viewpoint: Forage And Range Research Needs In The Central Great Plains, Kenneth P. Vogel, H. J. Gorz, Francis A. Haskins
Department of Agronomy and Horticulture: Faculty Publications
In the central Great Plains, pastures and rangelands often are not economically competitive with grain crops. This has led to increases in acreages of row crops at the expense of rangelands, pastures, and hay crops on marginal lands resulting in severe erosion problems. The productivity of forages, pastures, and rangelands needs to be increased to levels that would make them economically competitive with grain crops. Innovative research will be needed to develop the required knowledge and technology upon which productivity increases can be based. Pastures and rangelands in this area are usually components of production systems which may also include …