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Articles 2221 - 2250 of 2256
Full-Text Articles in Animal Sciences
Effects Of Mississippi Delta Flooding On Spider Populations, Peggy Rae Dorris
Effects Of Mississippi Delta Flooding On Spider Populations, Peggy Rae Dorris
Journal of the Arkansas Academy of Science
The Mississippi Delta flooded in the spring of 1973. Spider collections made in a Delta area of Mississippi in 1972 are compared with those made in 1973 during the flood and after it subsided. Because many egg cases and immature and mature spiders were destroyed by the flood, the spider population was diminished.
Nongeographic Variation In The Long-Nosed Bat, Choeroniscus Intermedius, Hugh H. Genoways, Robert J. Baker, Bernard Wyatt
Nongeographic Variation In The Long-Nosed Bat, Choeroniscus Intermedius, Hugh H. Genoways, Robert J. Baker, Bernard Wyatt
University of Nebraska State Museum: Mammalogy Papers
Of the 12 measurements analyzed, only length of tail exhibited enough individual variation to warrant its deletion in analysis of geographic or interspecific variation in the genus Choeroniscus. Also, because of the difficulty in consistently taking the measurement, we also suggest elimination of postorbital constriction.
Specimens of Choeroniscus intermedius were found to exhibit significant secondary sexual variation in five of the 12 measurements studied. Therefore, it is clear that males and females should be separated in analyses of variation within members of the genus. Females were found to be the larger in 10 of the 12 measurements--similar to the …
A Simulation Model Of Peromyscus Leucopus In An Area Of The Great Dismal Swamp, James E. Paschal Jr.
A Simulation Model Of Peromyscus Leucopus In An Area Of The Great Dismal Swamp, James E. Paschal Jr.
Biological Sciences Theses & Dissertations
A computer simulation model was developed to explain the population dynamics of the white-footed mouse (Peromyscus leucopus) in an area of the Great Dismal Swamp. The model was designed to provide an experimental base for future studies. The model indicates relationships between food availability, home range size, competition with Peromyscus nuttali habitat selection and reproduction.
White-footed mice were trapped in the Old Dismal Town site during each season from April, 1972 through March, 1973. The age-sex structure of the population was determined, and was compared with the simulated structure. Although there were significant discrepancies between the comparisons, the …
The Bobwhite Quail, Norm Dey, Jack Sinn
The Bobwhite Quail, Norm Dey, Jack Sinn
Nebraska Game and Parks Commission: Publications
A Year with the Bobwhite
Population Dynamics—Managing the Variables
The Way to Quail Abundance
The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe
The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe
Nebraska Game and Parks Commission: Publications
Ringneck—Its Past and Prospects: A most successful exotic, pheasant numbers are declining
Nuptial Rites and Nesting: Spring recoups winter’s losses
Summer Broods: While cocks undergo their annual moult, hens enter the brooding period; for eight weeks, hens attend chicks
Hunting the Ring-necked Pheasant
Season of Testing: Nebraska’s winters test a pheasant’s mettle, but given good cover and an adequate food supply, the ringneck is almost impervious to the elements
Methods of Management
Life History And Ecology Of The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe
Life History And Ecology Of The Ring-Necked Pheasant In Nebraska, William L. Baxter, Carl W. Wolfe
Nebraska Game and Parks Commission: Publications
Table of Contents
The Study … 6
Population Studies … 8 ...
Methods … 8 ...
Results and Discussion … 9
Nesting Studies … 13 ...
Methods … 13 ...
Results and Discussion … 14 ...
Nest Parasitism … 16 ...
Effects of Nest Searching on Nest Fate ... 17 ...
Nesting Chronology ... 18 ...
Roadside Nests ... 21 ...
Nesting in Experimental Alfalfa ... 22 ...
Pheasant Production in Wetlands ... 23
Brood Studies … 26 ...
Methods ... 26 ...
Sampling Problems ... 26 ...
Results and Discussion ... 27
Cover Utilization by Pheasant Broods ... 29 …
Status Of The Mountain Lion In Arkansas, John A. Sealander, Philip S. Gipson
Status Of The Mountain Lion In Arkansas, John A. Sealander, Philip S. Gipson
Journal of the Arkansas Academy of Science
Two authenticated kill records of the mountain lion, Felis concolor, in Arkansas are reported as well as numerous reliable sight records spanning an approximately 30-year period. Distribution of sightings in the state is discussed in relation to an expanding deer population. The cougar probably never was exterminated in Arkansas but it still may be considered endangered.
Variation And Ecology In A Local Population Of The Vesper Mouse (Nyctomys Sumichrasti), Hugh H. Genoways, J. Knox Jones Jr.
Variation And Ecology In A Local Population Of The Vesper Mouse (Nyctomys Sumichrasti), Hugh H. Genoways, J. Knox Jones Jr.
University of Nebraska State Museum: Mammalogy Papers
Vesper mice of the genus Nyctomys are relatively rare, arboreal rodents restricted to Middle America (eastern Panama to southern Mexico). Little is known concerning the biology of these secretive animals. Studies of variation of the one species, Nyctomys sumichrasti, have been limited to descriptions of new taxa (for example, see Goldman, 1916, 1937, and Laurie, 1953) and ecological observations have been confined to faunal accounts of political units (Goodwin, 1934; Hall and Dalquest, 1963) or were made coincidental to studies of other species (Lawlor, 1969; Fleming, 1970). Birkenholz and Wirtz (1965) recorded observations on the behavior, reproduction, and early …
Evaporative Water Loss In Two Northwest Snakes: Pituophis Catenifer And Crotalus Viridis, Donald R. Woolery
Evaporative Water Loss In Two Northwest Snakes: Pituophis Catenifer And Crotalus Viridis, Donald R. Woolery
All Master's Theses
A study by Gans, Krakauer and Paganelli (1968) dealt with twenty-six species of snakes representing five families. They found that the "rate of water loss was proportional to surface area" and that water loss correlates with the aridity of the selected habitat. No comparative information resulting from the direct separation of the pulmonary and cutaneous avenues of water loss is currently available. Also, no direct comparisons of this separation in sympatric species are available. These comparisons are the basis for this study.
The Microclimate, Ion And Water Balance Of Larval And Adult Ascaphus Truei Stejneger, Terry L. Mullen
The Microclimate, Ion And Water Balance Of Larval And Adult Ascaphus Truei Stejneger, Terry L. Mullen
All Master's Theses
The purpose of this paper is first to describe the microclimate occupied by larval and adult Ascaphus. This microclimate presents certain osmo- and iono- regulatory problems. The second purpose of this paper is to show how Ascaphus meets these osmo- and iono- regulatory problems.
Some Biological Aspects Of Lizard Eimerians, With A Description Of Eimeria Poinsettis N. Sp. From Sceloporus Poinsetti, David A, Colwell
Some Biological Aspects Of Lizard Eimerians, With A Description Of Eimeria Poinsettis N. Sp. From Sceloporus Poinsetti, David A, Colwell
All Master's Theses
A previously described eimerian, Eimeria sceloporis, from the northwestern fence lizard, Sceloporus occidentalis occidentalis, was observed for oocyst production, incidence and intensity of infection in both juvenile and adult lizards. In order to test the species specificity of Eimeria ahtanumensis, an attempted transmission was made to Sceloporus poinsetti, Sceloporus jarrovi, Sceloporus undulatus and Sceloporus occidentalis. During the winter of 1970-1971 fecal samples were collected from Sceloporus poinsetti to determine possible coccidial infections. The lizards were collected in September of 1970 in Hidulgo County, New Mexico and the ensuing investigation showed that nine of the thirteen adults were passing an intestinal …
The Breeding Biology Of The Western Tanager (Piranga Ludoviciana), Gary G. Benson
The Breeding Biology Of The Western Tanager (Piranga Ludoviciana), Gary G. Benson
All Master's Theses
In 1969 a two-year study was undertaken in an effort to enlarge our knowledge of the life history of the western tanager (Piranga ludoviciana). Bent (1958) summarizes the literature on the western tanager, and a review of his work clearly shows an almost total absence of detailed information on the species' life history. To obtain this information, observations were conducted from 1 May through 29 July 1969. A few observations were made during the 1968 breeding season.
Trap Manifested Behavior Trap Reflected Density Trap Reflected Distribution And Foods Consumed By Raccoons (Procyon Lotor L.) In Two Natural Areas Of Virginia, Elton L. Winslow
Trap Manifested Behavior Trap Reflected Density Trap Reflected Distribution And Foods Consumed By Raccoons (Procyon Lotor L.) In Two Natural Areas Of Virginia, Elton L. Winslow
Biological Sciences Theses & Dissertations
A study was undertaken comparing populations of raccoons (Procyon lotor L.) in two natural areas of Virginia, one in the Piedmont physiographic province at Montpelier and the other in the coastal plain at Newport News. Comparisons were made with respect to differences in: (1) capture and recapture success, (2) relative trap reflected density, (3) trap reflected distribution with respect to aquatic habitat, and (4) in food consumption. Comparison of capture data indicated that capture success per 100 trap nights was much higher at Newport News (1.58) than at Montpelier (.76). However a similar comparison of recapture success per …
Harvest Mice (Genus Reithrodontomys) Of Nicaragua, J. Knox Jones Jr., Hugh H. Genoways
Harvest Mice (Genus Reithrodontomys) Of Nicaragua, J. Knox Jones Jr., Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Harvest mice of the genus Reithrodontomys first were reported from Nicaragua by Oldfield Thomas (1907), who originally described Reithrodontomys sumichrasti modestus based on a single specimen from Jinotega. J. A. Allen (1908, 1910) recorded additional specimens of R. s. modestus, which still was the only species known from the country when A. H. Howell (1914) revised the genus Reithrodontomys. In his thorough review of Latin American harvest mice, Hooper (1952) added a second species, Reithrodontomys mexicanus lucifrons, to the Nicaraguan fauna, and Englert (1959) and Anderson and Jones (1960) recorded three additional kinds. The present report treats …
Mating Weaners Does Not Affect Future Ewe Performance, R J. Suiter, K. P. Croker
Mating Weaners Does Not Affect Future Ewe Performance, R J. Suiter, K. P. Croker
Journal of the Department of Agriculture, Western Australia, Series 4
Maiden ewes in Western Australia are usually mated in their second year because of supposed ill-effects of earlier mating on the ewe's future production. Mating at a younger age however, providing there was no reduction in future performance, would provide for an extra lamb drop and thus increase the lifetime output of ewes.
Information from various sources indicated that weaners could be successfully mated providing their bodyweights were satisfactory. This trial was carried out to test the results of mating weaners under Western Australian conditions.
Some Ecological Relations Of Fairy Shrimps In Alkaline Habitats Of Nebraska, D. B. Mccarraher
Some Ecological Relations Of Fairy Shrimps In Alkaline Habitats Of Nebraska, D. B. Mccarraher
Nebraska Game and Parks Commission: Staff Research Publications
Ecological studies on the distribution of fairy shrimps have been made from 246 sites in the sandhills region of Nebraska. New records for Nebraska have been established for Artemia salina, Branchinecta campestris, B. lindahli, B. mackini and Cyzicus mexicanus. Seasonal populations of shrimp have been located in habitats containing permanent fish populations. Water mineralization was the dominant environmental condition related to the distribution of phyllopods with sodium and potassium compounds predominating in the strongly alkaline lakes. Several of the Artemia lakes were classified as hydroxide sites. Many of the alkaline ponds, where B. lindahli and B. campestris flourish, are …
Observation On The Impact Of Certain Insecticides On Spider Populations In A Cotton Field, Peggy Rae Dorris
Observation On The Impact Of Certain Insecticides On Spider Populations In A Cotton Field, Peggy Rae Dorris
Journal of the Arkansas Academy of Science
No abstract provided.
Three Physical Measurements Of Male White-Tailed Deer In West Virginia Correlated With Soil Fertility And Population Density, Charles C. Coffman
Three Physical Measurements Of Male White-Tailed Deer In West Virginia Correlated With Soil Fertility And Population Density, Charles C. Coffman
Theses, Dissertations and Capstones
Differences in the physical size of male white-tailed deer from varying parts of West Virginia were known to exist a considerable number of years before any sophisticated attempts were made to explain them. Prior to 1940, the state's deer herd had been making a slow, but increasingly steady, comeback from a period of extreme scarcity around the turn of the century. To supplement the original remaining stock, shown in Figure 1, page 2, a deer restocking program was initiated in 1923. In 1937, federal legislation, in the form of the Federal Aid to Wildlife Restoration Act, gave added support to …
Studies On The Avifauna Of Burgner Acres, An Upland Stream-Side, Ash-Elm Forest And Its Edge, Kerry Lee Bryan
Studies On The Avifauna Of Burgner Acres, An Upland Stream-Side, Ash-Elm Forest And Its Edge, Kerry Lee Bryan
Masters Theses
No abstract provided.
Ninth Random Sample Laying Test, 1965-66, Department Of Agriculture, Western Australia
Ninth Random Sample Laying Test, 1965-66, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
NINTH RANDOM SAMPLE LAYING TEST, 1965-66
POULTRY RESEARCH STATION, WEMBLEY
FINAL REPORT TO 500 DAYS
Tenth Random Sample Laying Test, 1966-67 : Cages, Department Of Agriculture, Western Australia
Tenth Random Sample Laying Test, 1966-67 : Cages, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
TENTH RANDOM SAMPLE LAYING TEST, 1966-67 - CAGES
POULTRY RESEARCH STATION, WEMBLEY
SECOND PROGRESSIVE REPORT TO 26th FEBRUARY, 1967
Average age of birds 215.5 days or 30 weeks and 6 days.
Special Field Days For Merino Breeders, Department Of Agriculture, Western Australia
Special Field Days For Merino Breeders, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
More than 200 Merino stud breeders attended special stud breeding and fertility field days arranged for them by the Department of Agriculture recently.
Breeders attending represented some 40 per cent of the State's Merino studs.
Poultry Behaviour As It Affects Management, R H. Morris
Poultry Behaviour As It Affects Management, R H. Morris
Journal of the Department of Agriculture, Western Australia, Series 4
UNDER natural conditions animals have considerable control over their movements and over their proximity to each other.
Today, however, there is a trend in animal husbandry towards greater intensificaton, and this is most evident in the poultry industry.
Tenth Random Sample Laying Test, 1966-67 : Litter, Department Of Agriculture, Western Australia
Tenth Random Sample Laying Test, 1966-67 : Litter, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
TENTH RANDOM SAMPLE LAYING TEST, 1966-67 - LITTER
POULTRY RESEARCH STATION, WEMBLEY
SECOND PROGRESSIVE REPORT TO 26th FEBRUARY,1967
Average age of birds 215.5 days or 30 weeks and 6 days.
The Breeding Population Of Waterfowl On The Chippewa National Forest, John Mathiesen
The Breeding Population Of Waterfowl On The Chippewa National Forest, John Mathiesen
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
The purpose of this paper is to describe the characteristics of the breeding waterfowl population on the Chippewa National Forest in north central Minnesota.
Distribution And Taxonomy Of Mammals Of Nebraska, J. Knox Jones Jr
Distribution And Taxonomy Of Mammals Of Nebraska, J. Knox Jones Jr
Nebraskiana Publications: Resources and Materials on the 37th State
Contents
Introduction
Environment
Climate
Soils
Geology and Physiography
Vegetation
Effects of Man on The Envmonment
Factors Influencing Distribution And Speciation
Wisconsin Glaciation And Post-Wisconsin Climates
Emigration of Recent Mammals To Nebraska
Some Effects of The Environment
The Missouri River as a Barrier to Dispersal
Geographic Varlatlon and Speciation
Mammalian Distributional Areas
Summary
Treatment and Acknowledgments
Checklist (with page references) of Mammals of Nebraska
Accounts of Species
Introduced Mammals
Species of Unverified occurrence
Type Localities
Literature Cited
● Order MARSUPIALIA-Marsupials ● ● Family DIDELPHIDAE-Opossums ● Didelphis marsupialis virginiana Kerr (Opossum) ● Order INSECTIVORA-Insectivores ● Family SORICIDAE-Shrews ● Sorex cinereus haydeni Baird …
An Assessment Of Cattle Husbandry Problems In Western Australia, W J O Wilkie
An Assessment Of Cattle Husbandry Problems In Western Australia, W J O Wilkie
Journal of the Department of Agriculture, Western Australia, Series 4
THE science of animal husbandry deals with all those things which affect the welfare and productivity of our domestic animals.
The relative emphasis placed on welfare and productivity depends on whether the animals are kept as pets or for profit.
The Sparrow Invasion Of 1962, C D. Gooding, C. R. Walton
The Sparrow Invasion Of 1962, C D. Gooding, C. R. Walton
Journal of the Department of Agriculture, Western Australia, Series 4
During late 1962 and early 1963, a report that sparrows were at large in the metropolitan area close to Perth drew intense public interest.
This article gives some facts about the reported sightings.
Rabbit Fumigation, C D. Gooding
Rabbit Fumigation, C D. Gooding
Journal of the Department of Agriculture, Western Australia, Series 4
Not all poisons act by absorption from the alimentary tract or through the skin, the fumigants are a big group of poisons used in pest control which act on the animal after being absorbed through the lungs.
FUMIGATION as it is now used in Western Australia is not always an economical way of treating whole farm properties. It should only be used on its own in areas where it is impossible to use other more permanent methods such as warren destruction.
Grazing To Control Pasture Composition, R A. Bettenay
Grazing To Control Pasture Composition, R A. Bettenay
Journal of the Department of Agriculture, Western Australia, Series 4
APART from grazing management, there are a number of means by which the farmer can influence pasture composition.
With the exception of grazing, all of these processes involve recurring costs, so it is important to exert the utmost possible control through the grazing animal.