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- Vertebrate Pest Conference Proceedings: 18th (1998) (3)
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Articles 1 - 12 of 12
Full-Text Articles in Entire DC Network
Cattle, Environment, And Economic Change: A History Of Cherry County, Nebraska’S Cattle Industry, From Earliest Times To 1940, Gail Lorna Didonato
Cattle, Environment, And Economic Change: A History Of Cherry County, Nebraska’S Cattle Industry, From Earliest Times To 1940, Gail Lorna Didonato
Department of History: Dissertations, Theses, and Student Research
A modern cattle industry in Cherry County, Nebraska, developed as challenges of land use and pressures of economic change demanded new and flexible adaptation to the unique environment. Located in the Sandhills, a region only opened to legal white settlement after Indian removal in 1878, the area passed through phases of occupation. Open-range cattlemen drawn by lucrative local markets gave way to struggles over land use between farmers and ranchers. Early twentieth century legislation, the 1904 Kinkaid Act, designed to promote farm settlement, in the end, benefited ranchers the most. As the wedge to gain legal access to land ownership, …
Review Of People And The Land Through Time: Linking Ecology And History By Emily W. B. Russell, Emily Greenwald
Review Of People And The Land Through Time: Linking Ecology And History By Emily W. B. Russell, Emily Greenwald
Great Plains Research: A Journal of Natural and Social Sciences
While some environmental historians have used the insights of the natural sciences in their historical work, Emily Russell, offering a scientist's perspective, challenges ecologists to incorporate historians' methods and insights into their studies. In People and the Land through Time, Russell outlines working principles for the "historical ecologist," a scholar who traces past human impacts on particular ecosystems. She makes it clear that her emphasis is on ecological systems rather than humans, but argues that ecosystems can't be fully understood without accounting for how human actions have affected them.
The book provides an introduction to methods and a variety …
1998 Platte River Basin Ecosystem Symposium Proceedings
1998 Platte River Basin Ecosystem Symposium Proceedings
Water Current Newsletter
No abstract provided.
Influence Of Soybean Canopy Closure On Predator Abundances And Predation On Helicoverpa Zea (Lepidoptera: Noctuidae) Eggs, Aaron C. Anderson, Kenneth V. Yeargan
Influence Of Soybean Canopy Closure On Predator Abundances And Predation On Helicoverpa Zea (Lepidoptera: Noctuidae) Eggs, Aaron C. Anderson, Kenneth V. Yeargan
Entomology Papers from Other Sources
Planting soybeans [Glycine max (L.) Merrill early and in narrow rows is the most effective cultural control for preventing outbreaks of Helicoverpa zea (Boddie) in soybean. Soybeans planted early in narrow rows close canopy earlier in the season compared with soybeans planted late and in wide rows (i.e., leaves of plants from adjacent rows touch each other and eventually become densely interwoven). Although several lines of research have established dramatically higher mortality for corn earworm eggs or small larvae in closed canopies, none has found the cause. In 1994 and 1995, we planted soybeans in every combination of early …
Measuring & Monitering Plant Populations, Caryl L. Elzinga, Daniel W. Salzer, John W. Willoughby
Measuring & Monitering Plant Populations, Caryl L. Elzinga, Daniel W. Salzer, John W. Willoughby
United States Bureau of Land Management: Staff Publications
This technical reference describes the role of effective monitoring and provides a step-by-step overview of the entire monitoring process for single plant species. The challenges of successful monitoring involve efficient and specific design and a commitment to implementation of the monitoring project, from data collection to reporting and using results. The material in this reference is presented in a logical progression from planning and objective setting, designing the methodology, and taking the measurements in the field to analyzing and presenting the data and making the necessary management responses. However, many of the steps occur simultaneously or provide feedback for the …
Biological Control: An Important Component In Integrated Management Of Musca Domestica (Diptera: Muscidae) In Caged-Layer Poultry Houses In Buenos Aires, Argentina, Diana C. Crespo, Roberto E. Lecuona, Jerome A. Hogsette
Biological Control: An Important Component In Integrated Management Of Musca Domestica (Diptera: Muscidae) In Caged-Layer Poultry Houses In Buenos Aires, Argentina, Diana C. Crespo, Roberto E. Lecuona, Jerome A. Hogsette
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
An Integrated Management program to control Musca domestica L. was developed by evaluating cultural + chemical control, cultural + biological control + granular bait (IMP 1), and cultural + chemical + biological control + granular bait (IMP 2) in poultry houses in Argentina. Adult fly density was estimated by a modified Scudder-grid method. Percentage of house fly parasitism was estimated by direct and indirect methods. Spalangia endius Walker and Muscidifurax raptor Girault & Sanders were released at a rate of 10 parasitoids/hen/week. Complete absence of control practices allowed a sustained growth of the fly population. When larvicides and adulticides were …
Computer Model For Simulating Almond Moth (Lepidoptera: Pyralidae) Population Dynamics, James E. Throne, David W. Hagstrum, Jan Nawrot
Computer Model For Simulating Almond Moth (Lepidoptera: Pyralidae) Population Dynamics, James E. Throne, David W. Hagstrum, Jan Nawrot
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
We developed a computer model for simulating the population dynamics of the almond moth, Cadra cautella (Walker). The model incorporates previously published life history data for the almond moth developing on stored peanuts, Arachis hypogaea L., including stage-specific immature developmental time and survival and adult longevity and fecundity. The model was modified so that it also could be used to simulate almond moth population dynamics on stored, dried citrus pulp and stored corn (Zea mays L.). We tested the validity of the model by using 4 previously published data sets. The model was useful for interpreting population dynamics observed …
Geographical Variation In Male Courtship Behavior And Sexual Isolation In Wolf Spiders Of The Genus Schizocosa, Gary L. Miller, Gary L. Stratton, Patricia R. Miller, Eileen Hebets
Geographical Variation In Male Courtship Behavior And Sexual Isolation In Wolf Spiders Of The Genus Schizocosa, Gary L. Miller, Gary L. Stratton, Patricia R. Miller, Eileen Hebets
Eileen Hebets Publications
We surveyed 12 populations of the wolf spider Schizocosa crassipes (Walckenaer) and S. nr. crassipes in Tennessee, Mississippi, Louisiana, and Florida, in the United States, to determine the extent of variation in male courtship behavior when observed in standard laboratory conditions. We observed variation in both the frequency of occurrence and the sequence of the four principal male courtship behaviors and, when compared statistically, most of these behaviors differed between populations. Although there was no clinal pattern in the frequency of courtship behavior, we observed geographically consistent patterns in the sequence in which male courtship behaviors are displayed. We conducted …
Mammalian Reservoirs And The Changing Epidemiology Of Rabies In The United States, James E. Childs, John W. Krebs, Charles E. Rupprecht
Mammalian Reservoirs And The Changing Epidemiology Of Rabies In The United States, James E. Childs, John W. Krebs, Charles E. Rupprecht
Vertebrate Pest Conference Proceedings: 18th (1998)
The epidemiology of rabies in the United States has changed dramatically over the past few decades. Greater than 90% of all animal rabies cases reported annually to the Centers for Disease Control and Prevention now occur in wildlife, whereas before 1960 the majority were domestic animals. The principal rabies reservoirs today are wild carnivores and bats, infected with many different types of rabies virus variants. Annual reporting of human deaths have fallen from more than 100 at the turn of the century to one to six per year, despite major outbreaks of animal rabies in several distinct geographic areas. Most …
Social And Biological Aspects Of Non-Native Red Fox Management In California, Jeffrey C. Lewis, Kevin L. Sallee, Richard T. Golightly Jr., Ronald M. Jurek
Social And Biological Aspects Of Non-Native Red Fox Management In California, Jeffrey C. Lewis, Kevin L. Sallee, Richard T. Golightly Jr., Ronald M. Jurek
Vertebrate Pest Conference Proceedings: 18th (1998)
Since the late 1800s, non-native red foxes have been introduced in California for fur farming and fox hunting. Dispersal, population growth, and extensive translocations by humans have aided the expansion of the nonnative fox population throughout many of the lowland and coastal areas of the state. Since the 1980s, non-native red foxes have been recognized as predators of a number of endangered species. Trapping and euthanizing non-native red foxes have been used as methods to protect these endangered species, but have been opposed by some members of the public. Opposition by animal rights groups to red fox trapping and euthanization …
Twenty-Five Years Of Managing Birds Associated With Buildings At The University Of California, Berkeley, Arthur J. Slater
Twenty-Five Years Of Managing Birds Associated With Buildings At The University Of California, Berkeley, Arthur J. Slater
Vertebrate Pest Conference Proceedings: 18th (1998)
Information concerning 19 species of birds associated with 28 buildings on the University of California at Berkeley campus has been collected for 25 years. Sixteen species are included under three minor associations (temporary roosters, building invaders, and species that nest on (or in) buildings in small numbers). Barn owls and ravens have caused intense, though localized problems. Two additional species (cliff swallows and feral pigeons) have caused major problems. Feral pigeons have caused the most difficult problems to resolve. Case histories are used to describe problems associated with these birds, and control strategies for them. Cooper's hawks have nested in …
Ecologic Studies Of Rodent Reservoirs: Their Relevance For Human Health, James N. Mills, James E. Childs
Ecologic Studies Of Rodent Reservoirs: Their Relevance For Human Health, James N. Mills, James E. Childs
Zoonotics and Wildlife Disease: Publications
Within the past few years, the number of “new” human diseases associated with small-mammal reservoirs has increased dramatically, stimulating renewed interest in reservoir ecology research. A consistent, integrative approach to such research allows direct comparisons between studies, contributes to the efficient use of resources and data, and increases investigator safety. We outline steps directed toward understanding vertebrate host ecology as it relates to human disease and illustrate the relevance of each step by using examples from studies of hosts associated with rodent-borne hemorrhagic fever viruses.