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Articles 16051 - 16080 of 16292
Full-Text Articles in Life Sciences
Elk And Crop Damage In Pennsylvania, Gary W. Witmer, Rawland Cogan
Elk And Crop Damage In Pennsylvania, Gary W. Witmer, Rawland Cogan
Wildlife Damage Management Conference
The native eastern subspecies of elk (Cervus elaphus canadensis) was once widespread in Pennsylvania, but was extirpated from the state by 1880 (Bryant and Maser, 1982). About 177 Rocky Mountain elk (C. e. nelsoni) were re-introduced to the state between 1913 and 1926 (Sassaman, 1985). The herd increased as did crop damage complaints. Hunting seasons began in 1923 and continued until 1931. No further hunting was allowed because the herd had declined steadily. A small herd persisted in North-central Pennsylvania, in Elk and Cameron Counties. Elk sightings were rare by 1948, despite 17 years of closed …
Donkeys For Predation Control, Jeffrey S. Green
Donkeys For Predation Control, Jeffrey S. Green
Wildlife Damage Management Conference
Donkeys (Equus assinus) are described and their availability discussed. Key points which appear important in successfully using a donkey for reducing predation on livestock are presented.
Beaver And Beaver Dam Removal In Wisconsin Trout Streams, Larry Dickerson
Beaver And Beaver Dam Removal In Wisconsin Trout Streams, Larry Dickerson
Wildlife Damage Management Conference
Beaver (Castor canadensis) dam building activities create many longterm affects on stream ecosystems. Beaver dams may negatively influence trout fisheries by creating physical barriers to spawning areas, increasing sediment retention, and increasing water temperatures. The U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) Animal Damage Control (ADC) program in Wisconsin, entered into cooperative agreements with the Wisconsin Department of Natural Resources (WDNR) and the U.S. Forest Service (USFS) on the Nicolet National Forest from June through September, 1988, to remove beaver and beaver dams from priority classed trout streams. Four hundred and eight beaver …
Population Dynamics And Harvest Response Of Beaver, Neil F. Payne
Population Dynamics And Harvest Response Of Beaver, Neil F. Payne
Wildlife Damage Management Conference
"For when we speak of the fur trade, we mean the beaver trade. Other furs were handled; others -- notably the rich sea otter -- were more valuable by far. But the beaver was the root and core of the trade... Many men died, a continent was explored, an indigenous [human] race degraded and its culture crushed; all because beaver fur, with its tiny barbs, felted up better than any other" (Berry 1961:18).
Demonstration Electric Fences To Control Black Bear Damage To Apiaries In New York State, Janet L. Sillings, Thomas N. Tomsa Jr., James E. Forbes
Demonstration Electric Fences To Control Black Bear Damage To Apiaries In New York State, Janet L. Sillings, Thomas N. Tomsa Jr., James E. Forbes
Wildlife Damage Management Conference
The New York State black bear (Ursus americanus) population, approximately 4,000 animals (Clarke 1977), causes damage to apiaries in the catskill, Adirondack, and Southern Tier regions of the state. During 1987, 1988, and 1989, USDA Animal Damage Control (ADC) administered a program in New York to control bear damage to apiaries. Control activities were carried out pursuant to a Cooperative Agreement between ADC and the New York State Department of Agriculture and Markets, and were supported by matching Federal-State contributions. Program objectives were beekeeper education aimed at preventing bear damage and for the construction of demonstration temporary electric …
Coyote Depredation Control In New York - An Integrated Approach, Thomas N. Tomsa Jr., James E. Forbes
Coyote Depredation Control In New York - An Integrated Approach, Thomas N. Tomsa Jr., James E. Forbes
Wildlife Damage Management Conference
The New York State Cooperative Coyote Damage Control Program was established in late 1986 through a cooperative agreement between the New York State Department of Agriculture and Markets (NYSDAM) and USDA, APHIS, ADC in response to escalating complaints of coyote (Canis latrans) depredations on sheep from 1980-85. Ten counties with histories of and/or potential for coyote/livestock conflicts were identified and targeted for publicity and primary program emphasis. Program staff received 58 reports of coyote depredations on 182 sheep from 32 producers in the ten target counties and seven outlying counties from May 1987 through May 1989, and verified …
Laughing Gulls At Jfk Airport: Safety Hazard Or Wildlife Resource?, R. A. Dolbeer, M. Chevalier, P. P. Woronecki, E. B. Butler
Laughing Gulls At Jfk Airport: Safety Hazard Or Wildlife Resource?, R. A. Dolbeer, M. Chevalier, P. P. Woronecki, E. B. Butler
Wildlife Damage Management Conference
John F. Kennedy International Airport is adjacent to Jamaica Bay Wildlife Refuge administered by the National Park Service. In 1979, 15 pairs of laughing gulls (Larus atricilla) nested on the refuge, the first recolonization of Long Island by this species since the gulls' disappearance from New York around 1900. The colony, with nests as close as 0.4 km to 1 runway, has subsequently increased to about 3,000 pairs. From 1970 to 1978, only 1 laughing gull strike by an aircraft was recorded at JFK. From 1979 through August 1989, 800 strikes were recorded, including 179 in 1989, in spite of …
Wildlife Damage To Crops: Perceptions Of Agricultural And Wildlife Professionals In 1957 And 1987, Michael R. Conover, Daniel J. Decker
Wildlife Damage To Crops: Perceptions Of Agricultural And Wildlife Professionals In 1957 And 1987, Michael R. Conover, Daniel J. Decker
Wildlife Damage Management Conference
We surveyed state wildlife agencies, state agricultural departments, Wildlife Extension Specialists, U.S.D.A. Animal Damage Control agents, and state Farm Bureau officials to develop a national perspective of wildlife damage to agricultural crops in the U.S. A broad consensus existed that wildlife damage was a major problem, although groups often differed in their perceptions of the seriousness of specific problems. The complexity of the wildlife damage problem was apparent in that 27 different wildlife species were cited as causing the greatest problem to a state's farmers. Nevertheless, 38-80% of the respondents from every group surveyed stated that deer were their worst …
Evaluation Of A Canada Goose Call-Activated Switch For Crop Damage Abatement, James W. Heinrich, Scott R. Craven
Evaluation Of A Canada Goose Call-Activated Switch For Crop Damage Abatement, James W. Heinrich, Scott R. Craven
Wildlife Damage Management Conference
Damage and nuisance problems caused by Canada geese (Branta canadensis) are difficult to control with current abatement technology. We tested the efficacy of a goose call-activated switch as a modification for propane exploders (gas cannons), using recorded Canada goose calls and live goose trials. We recorded a 30 m range for the switch and found that it was activated by a range of non-target sounds. The development of this device and the technology involved are discussed. The call-activated switch is not a useful tool in reducing Canada goose damage in crop fields.
Canada geese frequently feed on agricultural …
Survey Of Mississippi Catfish Farmers On Means, Effort, And Costs To Repel Fish-Eating Birds From Ponds, A. R. Stickley, K. J. Andrews
Survey Of Mississippi Catfish Farmers On Means, Effort, And Costs To Repel Fish-Eating Birds From Ponds, A. R. Stickley, K. J. Andrews
Wildlife Damage Management Conference
Eighty-seven percent of 281 Mississippi catfish farmers felt that fish-eating birds were enough of a problem to warrant harassment. Farmers estimated that they spent an average of 2.6 man-hours per day harassing birds at an average annual cost of $7400. Sixty percent of the farmers who harassed birds did so by driving around the ponds and firing at birds to repel them. Propane exploders and pyrotechnics were also used. Pyrotechnics were judged the most effective repellent technique. The cost of bird harassment according to these farmers is $2.1 million. The value of fish loss to cormorants alone is roughly estimated …
Fertility Control As A Tool For Regulation Of Wildlife Populations, U. S. Seal
Fertility Control As A Tool For Regulation Of Wildlife Populations, U. S. Seal
Wildlife Damage Management Conference
Biological control of reproduction and fertility is a normal part of the life history of all organisms. Control mechanisms allow timing of reproduction with respect to age, time of day, season, and other periodic environmental events. Further modulation can occur with variations in temperature, rainfall, nutrition, and health status. Interactions with other members of the species, ranging from pherohormonal stimulation of estrus to social delay of puberty and breeding to infanticide, provide further constraints upon fertility and recruitment. All of these processes ultimately act through molecular neuroendocrine mechanisms that are under genetic control and are subject to natural selection and …
Revolution In Bird Control, Air Birdstrike Prevention Inc.
Revolution In Bird Control, Air Birdstrike Prevention Inc.
Wildlife Damage Management Conference
Over 90% of all civil bird strikes in the U.S. occur at altitudes up to 3,000 feet above the ground and in the close vicinity of the airport. Many species of birds are involved, but almost 50% of all strikes involve gulls.
The Role Of Private Enterprise In Wildlife Damage Control, Lynn Braband
The Role Of Private Enterprise In Wildlife Damage Control, Lynn Braband
Wildlife Damage Management Conference
In addressing the role of private enterprise in wildlife damage control, I will not be bringing the final word or a comprehensively exhaustive report. Rather, I will be presenting some perspectives as the representative of a firm with extensive involvement with wildlife damage control as a business. My comments will be divided into why, what, how, and the future.
Gis: A Tool For Analyzing And Managing Deer Damage To Crops, Glenn R. Dudderar, Jonathan B. Haufler, Scott R. Winterstein, Petrus Gunarso
Gis: A Tool For Analyzing And Managing Deer Damage To Crops, Glenn R. Dudderar, Jonathan B. Haufler, Scott R. Winterstein, Petrus Gunarso
Wildlife Damage Management Conference
A common problem of biologists and agriculturists trying to control white-tailed deer (Odocoileus virginianus) damage to crops is understanding the causes and alternative solutions to the damage over multi-county or state-wide areas. Deer damage a variety of crops in different ways at different times of the year. Crops damaged, types of damage, and damage severity are influenced by deer densities, distributions, movements and harvest, as well as field size and interspersion with surrounding land cover types and uses. The complexity of the interaction of these factors requires improved analysis if the most appropriate control methods are to be …
A Review Of The Status Of Bird Management Products And Devices In The United States, Charles W. Areson
A Review Of The Status Of Bird Management Products And Devices In The United States, Charles W. Areson
Wildlife Damage Management Conference
Commercial urban /industrial structural pest bird control is approaching a time of crisis. Several long-standing toxicants that have been used as a major part of pest bird control programs are either suspended, at risk of suspension, or have had their production terminated by the manufacturer. "Environmental groups" are up in arms about the use and misuse of pesticides. Lawsuits have been filed to stop the use of some products, and political pressure has brought about reviews of some pesticide products on both the state and federal levels. EPA has seemed to have a "get tough" policy in its reregistration guidelines, …
Wildlife Disease Concerns In Animal Damage Control, Sarah Shapiro Hurley
Wildlife Disease Concerns In Animal Damage Control, Sarah Shapiro Hurley
Wildlife Damage Management Conference
There are many facets to the topic of wildlife disease concerns in animal damage control, but the area that I have chosen to discuss is that of zoonotic disease - diseases which are transmissible in nature between humans and other animals. The list of zoonoses is extensive and in the time available only a few can be reviewed.
The Effectiveness Of Orco Mole Bait In Controlling Mole Damage, Dale K. Elshoff, Glenn R. Dudderar
The Effectiveness Of Orco Mole Bait In Controlling Mole Damage, Dale K. Elshoff, Glenn R. Dudderar
Wildlife Damage Management Conference
The tunneling damage caused by eastern moles (Scalopus aguaticus) and starnosed moles (Condylura cristata) is well known to professionals in lawn care, golfcourse maintenance, and turfgrass production, as well as many private landowners. Present damage control methods, including trapping, gas and smoke fumigants, and insecticide applications have a wide variety of limitations and prove impractical in some situations. An easily applied mole damage control method is needed that professional and nonprofessional applicators can use in a variety of environmental and physical conditions.
This study tested the effectiveness of Orco Mole Bait, a chlorophacinone pellet placed in …
Putting A Top Quality Forage Program Together On Your Farm, Richard Brown Phillips
Putting A Top Quality Forage Program Together On Your Farm, Richard Brown Phillips
Kentucky Alfalfa and Stored Forage Conference
You know most of us here, and I am including myself, really don't have a super talent for predicting the future with a great deal of consistency, however, our interest doesn't have to be in predicting, but rather, just primarily in considering potentials and opportunities in the future. What do you say, let's take a little time to look at some of the opportunities in the forage industry. The nation's No. 1 cash crop.
Sampling And Testing For Quality, Buddy Sims
Sampling And Testing For Quality, Buddy Sims
Kentucky Alfalfa and Stored Forage Conference
The Kentucky Department of Agriculture is preparing to implement a unique and far-reaching program to provide forage producers with a detailed analysis of the quality of hay.
This program was mandated by the Kentucky legislature in 1988 as a means to enhance the marketing of Kentucky hay. A statewide hay testing and marketing program was recommended by a special legislative task force report issued in 1987 and has the endorsement of a number of agricultural organizations, including the University of Kentucky College of Agriculture and Kentucky Farm Bureau.
Marketing Kentucky Hay — A Reality, J. Kenneth Evans
Marketing Kentucky Hay — A Reality, J. Kenneth Evans
Kentucky Alfalfa and Stored Forage Conference
As I write this in early December, Kentucky does not yet have a system for marketing hay. The above title reflects an attitude which positively expects a marketing system to be in place by the 1989 season. Many details of such a system have been discussed, some decisions have already been made and more will be made by the time you read this. Literally hundreds of decisions need to be made before hay is marketed in 1989. since these decisions will be made by a group of people (a producer Board of Directors and the KY Department of Agriculture personnel) …
Equipment And Chemical Advances In Harvesting And Storing Quality Hay, Michael Collins
Equipment And Chemical Advances In Harvesting And Storing Quality Hay, Michael Collins
Kentucky Alfalfa and Stored Forage Conference
In some areas of the country, many producers have gone to silage or haylage for storage of a portion of their forage. However, hay remains the most popular storage method for forage. Hay stores well for long periods and is better suited to cash sale and transportation over substantial distances than silage. Mechanical conditioning, which gained acceptance during the 1950's is probably still the greatest single change in hay harvesting and storage technology during this century. However, a number of other noteworthy changes and innovations have occurred in recent years which have helped to reduce the extent of losses during …
Alfalfa Hay: Quality Makes The Difference, Garry D. Lacefield
Alfalfa Hay: Quality Makes The Difference, Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
Alfalfa "Queen of the Forage Crops" is one of t.he most important forage legumes grown in the U.S. It can be grown over a wide range of soil and climatic conditions, it has the highest yield potential and the highest feeding values of all adapted perennial forage legumes. Alfalfa is a versatile crop which can be used for pasture, hay, silage, green-chop, soil improvements and human consumption (sprouts, etc.).
Foreword [1989], Garry D. Lacefield
Foreword [1989], Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
This is the front matter of the proceedings.
Evaluating Hay Quality, William C. Templeton Jr.
Evaluating Hay Quality, William C. Templeton Jr.
Kentucky Alfalfa and Stored Forage Conference
One of the frustrations to nutritionists interested in the feeding value of roughage has been that with all their book knowledge and technical aids no dependable scheme they could devise would consistently rank forages in feeding value, while the dumb ruminant animal could unerringly detect differences in their nutritive values.
-E. W. Crampton, 1965
Alfalfa Yield, Quality And Persistence, Michael Collins
Alfalfa Yield, Quality And Persistence, Michael Collins
Kentucky Alfalfa and Stored Forage Conference
Alfalfa management in complex because it requires the simultaneous consideration of factors that affect the yield of the crop, forage quality for ruminants and the persistence of the stand. Considerable research has demonstrated the importance of agronomic factors such as soil pH, drainage and soil fertility in successful alfalfa production. Beyond soil factors and cultivar selection, selection of harvest date is one the most important management factors that influence yield, quality and stand persistence.
The Alfalfa Plant's Reaction To Grazing, Paul Deaton
The Alfalfa Plant's Reaction To Grazing, Paul Deaton
Kentucky Alfalfa and Stored Forage Conference
Will the alfalfa plan survive grazing intensively by cattle? This question is asked most frequently these days.
Let's review the parts of an alfalfa plant to begin this discussion. Those parts are: Roots, crown and top growth. Alfalfa has a tap root which is used to store nutrient reserves for survival. It's ability to store these reserves and pull from them during times of stress (drought, cutting, etc.) makes it a very hardy plant.
Grazing Alfalfa — A Reality, John H. Wilson
Grazing Alfalfa — A Reality, John H. Wilson
Kentucky Alfalfa and Stored Forage Conference
Alfalfa offers an excellent opportunity to beef producers for receiving excellent performance. Exciting results have been seen for the past two years on the Thomas Farm (Registered Polled Hereford). A total of 1063 pounds of beef per acre produced this year, with similar results seen in 1986 - a total of 874 pounds of beef produced in 1986.
Weed Control In Alfalfa, Jonathan D. Green
Weed Control In Alfalfa, Jonathan D. Green
Kentucky Alfalfa and Stored Forage Conference
Since weeds which infest forages are harvested along with the alfalfa crop, total dry matter production does not necessarily increase with good weed control. However, controlling weeds which invade alfalfa improve the forage quality. In addition, maintaining good weed control may also prolong the productive life of the alfalfa stand.
If managed properly, established alfalfa stands can effectively prevent many annual and perennial weeds from becoming a major problem. Maintaining proper soil fertility, soil pH, and good soil drainage are some practices which help keep the alfalfa competitive against invading weeds. Other factors which put alfalfa under stress, such as …
Blister Beetles In Alfalfa, C. M. Christensen, Lee H. Townsend
Blister Beetles In Alfalfa, C. M. Christensen, Lee H. Townsend
Kentucky Alfalfa and Stored Forage Conference
Blister beetles are Iong cylindrical beetles that may be black, gray, yellow and brown striped, black with gray margins on the wing covers or black with a red head. These insects are usually found feeding in clusters on alfalfa. They can cause severe sickness and sometimes death when livestock especially horses eat the live or dead beetles. They are usually not found in alfalfa in mid-July and early August which translates to the third or fourth cutting. Blister beetles (black ones, gray margined ones, and yellow striped ones) were collected in very noticeable numbers in several central Kentucky alfalfa fields …
Alfalfa Establishment, Garry D. Lacefield
Alfalfa Establishment, Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
Alfalfa "Queen of the Forage Crops" is the most important forage legume grown in the United States. It is grown over a wide range of soil and climatic conditions. Alfalfa has the highest yield potential and the highest feeding value of all adapted perennial forage legumes. It is a versatile crop which can be used for pasture, hay, silage, green-chop, soil improvements and soil conservation. As a result. of this crops many merits; especially yield, quality and versatile use, it can be used successfully in many animal feeding programs.