Digital Commons Network^™

Abriß Der Erforschungsgeschichte Der Avifauna Mongolica, R. Piechocki

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Die erste Periode der Erforschung der Avifauna mongolica umfaßt den Zeitraum von 1871 bis 1931. Nach den zentralasiatischen Expeditionen von N. M. PRZEVALSKIJ brachten dieser und danach F. D. PLESKE und W. L. BIANCHI die ersten ornithologischen Beiträge heraus. Im Auftrage der Russischen Geographischen Gesellschaft leitete G. N. POTANIN eine Expedition durch die Nordwest-Mongolei. Weitere Expeditionen führte P. K. KOZLOV durch; die ornithologische Ausbeute wurde von W. L. BIANCHI bearbeitet. Um die Jahrhundertwende setzt die Erforschung der Nordmongolei ein durch W. S. MOLLESON, 0. BAMBERG und F. SCHILLING. Die ornithologische Erschließung der Nordwest-Mongolei ist P. P. SUSHKIN und A. J. …

Stand Und Aufgaben Der Erforschung Der Eintagsfliegenfauna (Insecta, Ephemeroptera) In Der Mongolischen Volksrepublik, D. Braasch

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Der gegenwärtige Stand der Erforschung der mongolischen Ephemeropterenfauna wird dargelegt. Für die MVR können 54 Arten belegt werden. Die Eintagsfliegen des Landes entstammen verschiedenen Gruppen und Faunenelementen: holarktische, eurosibirische, mongolische und mandschuro-japanische.

Cranes Of The World: Hooded Crane (Grus Monachus), Paul A. Johnsgard

Cranes of the World by Paul A. Johnsgard

Other Vernacular Names:
None in general English use; Huan-has (Chinese); Grue-moine (French); Monchskranich (German); Nabe-zuru (Japanese); Chernyi zhuravl (Russian); Grulla capachina (Spanish).

Range:
Breeding range not well known, but currently known to breed only in a few isolated areas of the USSR, including the Ussuri River and the lower Amur, in the basin of the middle reaches of the Vilyuy, and in the Olekma-Chara uplands. Breeding probably also occurs in the upper Nizhnaya Tunguska River and its tributary the Nyepa, along the Chona River, in the lower Amur along the In and Mukhen rivers, in the basin of the Evur …

Scaring Of Carrion Crows (Corvus Corone Corone) By Species-Specific Distress Calls And Suspended Bodies Of Dead Crows, Luzia Naef-Daenzer

Bird Control Seminars Proceedings

In Switzerland, carrion crows can cause considerable damage to sprouting corn fields when feeding on the germinated corn. I tried to evaluate a method to prevent these damages. The use of species-specific distress calls, for the first time described by Frings and Jumber (1954), seemed to be the most promising method. Agronomes and biologists have applied it in field studies to several different bird species causing damage in agriculture and on airports (e.g., Gramet, 1962; Brough, 1968). However, the literature either describes single actions or several different scaring devices being used together. To be able to judge the method, quantitative …

Mensural Discrimination Of The Skulls Of Arkansas Peromyscus, V. Rick Mcdaniel, C. Renn Tumlison, Phil Mclarty

Journal of the Arkansas Academy of Science

Twelve parameters were measured on skulls of four species of Peromyscus from Arkansas. Univariate statistical tests, multivariate analyses of variance, and principal axis factor analyses were performed on the data set and/or subsets in a search for species-level discriminating characters. Total length of skull was found to discriminate between skulls of P. maniculatis, P. leucopus, and a combined group of P. attwateri and P. gossypinus. Furthermore, the ratio of interorbital width and length of nasal bone was found to adequately discriminate between skulls of P. attwateri and P. gossypinus.

Status Of The Bat Myotis Keenii In The Arkansas Ozarks, Michael J. Harvey, V. Rick Mcdaniel

Journal of the Arkansas Academy of Science

No abstract provided.

Digestibility Of Sunflower Hulls Treated With Sodium, Ammonium, And Potassium Hydroxides, Bal Krishna Sharma

Electronic Theses and Dissertations

In vitro dry matter digestibility (IVDMD) of sunflower hulls (SFH) treated with sodium hydroxide (NaOH), ammonium hydroxide (NH₄OH), and potassium hydroxide (KOH) at increasing levels were studied. Tested concentrations of each alkali as percent dry matter (DM) on SFH were 1.63, 2.45, 3.26, and 4. 08. In vitro dry matter digestibility of sunflower hulls increased with higher concentrations of NaOH and KOH. Percent IVDMD for control (un-treated SFH) was 18.0. Percent IVDMD for SFH treated at 1.63, 2.45, 3.26, and 4.08% of DM were: 18.9, 21.4, 22.2, and 22.9 for NaOH; 18.3, 18.0, 18.3, and 18.5 for NH …

An Examination Of Prostaglandins As Causative Agents In Pine Needle (Pinus Ponderosa) Abortion, Daniel P. Shue

Electronic Theses and Dissertations

Cow and calf losses due to pine needle abortion in cattle grazing foothill ranges of ponderosa pine (Pinus ponderosa) continue to cause managerial and economic problems for ranchers in South Dakota, Colorado, Idaho, California, Montana and many areas throughout Canada. Because of its overall economic significance, investigators have been attempting to isolate and characterize causative agents of pine needle abortion. To date, a large number of pine needle constituents have been shown to possess abortifacient capabilities. In addition to actual pine needles, it appears that several other undefined factors may be associated with, and (or) predispose animals to, pine needle …

Spawning The Grass Carp Female X Bighead Carp Male, Mike Freeze, Scott Henderson

Journal of the Arkansas Academy of Science

Methods and procedures for artificially spawning the female grass carp (Ctenopharyngodon idella) X male bighead carp (Aristichthys nobilis) are presented. Broodstock selection and treatment, hormone injections, ovulation, fertilization, hatching techniques and stocking rates are discussed. This paper outlines the procedures necessary to successfully produce hybrid grass carp

The Effect Of Repeated Spermiation On Sperm Density In The American Toad (Bufo Americanus), Michael A. Kriz

Masters Theses

Bufo americanus (American toad) responds to LH-RF injections by releasing sperm into the cloaca. An ANOVA test (repeated measures) was used to determine that spermiation number and body size but not frequency of injection affected sperm density. The affects of body size on sperm density were that large toads produced the highest sperm densities, followed by the medium and then the small toads. Sperm density decreased with repeated spermiations which could correlate with the explosive breeding pattern of the American toad.

Ultrafiltration Of Skim Milk Prior To Cottage Cheese Making, Izhar H. Athar

Electronic Theses and Dissertations

Cottage cheese has the largest sales volume potential of all cultured dairy products in the United States today. Moreover, it can be a highly profitable product if proper control is exercised during its manufacturing (46). Commercial production of cottage cheese utilizes a significant portion of the total fluid milk produced in the U. S.A. After the 1955's, yearly per capita consumption of cottage cheese increased from 1. 7 7 kg (3.9 lb) to a high of 2. 45 kg (5.4 lb) in 1972 (67) . Consumer demand for lower fat dairy products gradually increased, which put more pricing emphasis on …

Rumen Microbial Protein Synthesis In Cows Fed Dried Whey, Paul M. Windschitl

Electronic Theses and Dissertations

Two rumen fistulated Holstein cows, weighing approximately 550 kg, were used in a switchback design experiment to evaluate the effects of consuming large amounts (38% of total ration dry matter) of dried whey on rumen microbial protein synthesis. Cows were fed total mixed rations consisting of (dry matter basis) 45% corn silage, 10% alfalfa hay, and 45% concentrate mix. The concentrate mix was primarily corn and soybean meal (control) or 85% dried whole whey. Dry matter intakes averaged 16.4 and 15.3 kg/day for control and whey diets. Concentrations of bacteria and protozoa in rumen contents were estimated using diaminopimelic acid …

Mate And Nest-Site Fidelity Among Tree Swallows In Central Minnesota, Carol Fiedler, Alfred Grewe

Journal of the Minnesota Academy of Science

Movement of tree swallows (lridoprocne bicolor) between successive breeding sites and pair bond formation was analyzed from data collected between 1965 and 1978 in central Minnesota. A lasting pair bond did not seem to exist between breeding pairs. The majority of the breeding pairs were found to separate after one year. Those that did remate usually did so in the same or an adjacent nest box. Age and reproductive success did not appear to affect whether a pair remated or divorced. Movement of the male and female the year following their mating did seem to be a factor. Males tended …

Distribution And Seasonal Occurrence Of The Scutelleridae, Corimelaenidae And Cydnidae Of Arkansas, Linda A. Lee, Harvey E. Barton

Journal of the Arkansas Academy of Science

A total of 16 genera and 37 species and subspecies of Corimelaenidae, Cydnidae and Scutelleridae is recorded as occurring or possibly occurring in Arkansas. Nine species of Scutelleridae contained in six genera, 13 species and subspecies in three genera of Corimelaenidae ( =Thyreocoridae) and 15 species and subspecies of Cydnidae found in seven genera are reported as occurring or possibly occurring in Arkansas. Twenty-seven species and subspecies contained in 13 genera were collected or recorded from entomological holdings within the state. Two species in two genera were reported in the literature as occurring in Arkansas. Based on distribution records in …

Preliminary Report On The Zygoptera (Damselflies) Of Arkansas, George L. Harp

Journal of the Arkansas Academy of Science

No abstract provided.

Aquatic Macroinvertebrates Of The Hiatt Prairie Region, Franklin County, Arkansas, Julie A. Huggins, George L. Harp

Journal of the Arkansas Academy of Science

No abstract provided.

First Report Of Brazilian Free-Tailed Bat Maternity Colonies In Arkansas, David A. Saugey, Darrell R. Heath, Clark Efaw, Gary A. Heidt, Teresa E. Beggs

Journal of the Arkansas Academy of Science

No abstract provided.

Mosquitofish Production In Monoculture And Polyculture Ponds, Walter R. Robison, Scott H. Newton, Max V. Meisch

Journal of the Arkansas Academy of Science

No abstract provided.

Observaciones Sobre La Biología De Phyllomedusa Iheringi Boulenger, 1885, (Anura, Hylidae), Rafael O. De Sá, Annelise Gerhau

Biology Faculty Publications

RESUMEN:

Se presentan las características que permiten diferenciar las larvas de Phyllomedusa iheringi de las de otros anuros que habitan en nuestro territorio, junto con algunas observaciones sobre la biología de esta especie poco conocida en el Uruguay.

SUMMARY:

The characteristics that differentiate the larvae of Phyllomedusa iheringi from other anurans that live in Uruguay are presented here. Some observations on the biology of this species are also recorded.

Selection Of Scales For Growth Analysis Of Largemouth Bass, Donald C. Jackson, Raj V. Kilambi

Journal of the Arkansas Academy of Science

Scales from four regions of the body of largemouth bass were compared for efficacy in estimating fish length at the time of scale formation and at capture. The scales from above and below the lateral line in the pectoral and caudal peduncle regions yielded intercepts of 64.73, 52.36, 19.77 and 25.81 respectively for the total length-scale radius relationship. These intercept values represent the fish length at the time of scale formation. By the regression of estimated lengths at capture on empirical lengths it was found that the caudal peduncle scales were better suited in predicting fish length.

Comparison Of Two Year Classes Of Hybrid Grass Carp And Grass Carp For Aquatic Plant Control, Mike Freeze, Scott Henderson

Journal of the Arkansas Academy of Science

Two year classes of grass carp and F, hybrids resulting from bighead carp male x grass carp female were compared at various stocking densities for aquatic plant control. One and two year old grass carp exhibited higher survival rates and better growth rates than the same age hybrid grass carp. The presence of grass carp or hybrid grass carp decreased both Secchi disc transparencies and dissolved oxygen values. Grass carp had a greater negative effect upon these measurements because they removed the vegetation quicker than the hybrid grass carp. These apparent detrimental effects on water quality are necessary trade-offs for …

Abundance And Seasonal Occurrence Of Psorophora Columbiae In A Northeast Arkansas Ricefield Community, Larry A. Olson, Julia A. Huggins

Journal of the Arkansas Academy of Science

Increased population levels of the dark ricefield mosquito, Psorophora columbiae (Dyar and Knab), have been shown to be associated with rice cultivation in Arkansas and several other states. Four standard New Jersey light traps were operated daily between May 30 and October 2 of 1981 and 1982 to determine the relative abundance and seasonal occurrence of this species in NE Arkansas. The effect of trap distance from nearby rice on the number of adult P. columbiae collected was assessed by comparing weekly totals from 2 traps located within 0.9 km of rice fields with totals from 2 traps situated beyond …

Arkansas Range Extensions Of The Seminole Bat (Lasiurus Seminolus) And Eastern Big-Eared Bat (Plecotus Rafinesquii) And Additional County Records For The Hoary Bat (Lasiurus Cinereus), Silver-Haired Bat (Lasionycteris Noctivagans) And Evening Bat..., Darrell R. Heath, Gary A. Heidt, David A. Saugey, V. Rick Mcdaniel

Journal of the Arkansas Academy of Science

No abstract provided.

Optimal Foraging Theory And The Psychology Of Learning, Alan Kamil

Avian Cognition Papers

The development of optimization theory has made important contributions to the study of animal behavior. But the optimization approach needs to be integrated with other methods of ethology and psychology. For example, the ability to learn is an important component of efficient foraging behavior in many species, and the psychology of animal learning could contribute substantially to testing and extending the predictions of optimal foraging theory.

Gastrointestinal Helminths Of The Cougar, Felis Concolor L., In Northeastern Oregon, Robert L. Rausch, C. Maser, Eric P. Hoberg

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Helminths of nine species were identified from 39 cougars obtained in northeastern Oregon (Walbowa, Baker, and Union counties), viz., Taenia omissa Lühe, 1910 (100%); T. ovis krabbei Moniez, 1879 (61%); T. hydatigena Pallas, 1776 (10%); Mesocestoides lineatus (Goeze, 1782) (5%); Toxascaris leonina (von Linstow, 1902) (69%); Toxocara cati (Schrank, 1788) (15%); Physaloptera praeputialis von Linstow, 1889 (13%); Pterygodermatites affinis (Jagerskiold, 1904) (ca. 2%); and Trichinella sp. (larvae) (ca. 2%). In addition, undeveloped cestodes of the genus Taenia in 26 animals had lost rostellar hooks and could not be identified. Host-records, prevalence, and biological characteristics of some of the helminths are …

Mammals Of The Northern Great Plains, J. Knox Jones Jr., David M. Armstrong, Robert F. Hoffmann, Clyde Jones

University of Nebraska State Museum: Mammalogy Papers

For the purposes of this book, the Northern Great Plains are defined as the states of Nebraska, North Dakota, and South Dakota. As a physiographic concept, the northern part of the great interior grasslands of North America is, of course, much broader in geographic extent than the Dakotas and Nebraska, but the three states lie in the heart of the region, and thus the title for this work seems appropriate. Our expectations in writing Mammals of the Northern Great Plains were to provide a comprehensive, yet semitechnical, treatmeat of free-living mammals that would prove useful to specialist and nonspecialist alike. …

United States Naval Medical Research Unit Number Three, Cairo, Egypt, Medical Zoology Department Translation List, Harry Hoogstraal

United States Naval Medical Research Unit 3: Publications

List of translations of medical parasitology and medical entomology papers prepared by the United States Naval Medical Research Unit Number 3 in Cairo, Egypt. The papers were translated from numerous languages, such as Russian (most were translated from Russian), Bulgarian, Chinese, Czech, Finnish, French, German, and Japanese, into English. The publication dates of the original papers ranged from about 1915 to 1983. Harry Hoogstraal translated some or all of the papers.

Historical Patterns Of Phytoplankton Productivity In Lake Mead, Richard T. Prentki, Larry J. Paulson

Publications (WR)

Lake Mead was impounded in 1935 by the construction of Hoover Dam. The Colorado River was unregulated prior to then and therefore was subjected to extreme variations in flows and suspended sediment loads. Hoover Dam stabilized flows and reduced suspended sediment loads downstream, but Lake Mead still received silt-laden inflows from the upper Colorado River Basin. The Colorado River contributed 97% of the suspended sediment inputs to Lake Mead, and up to 140 x 1O⁶ metric tons (t) entered the reservoir in years of high runoff. Most of the sediments were deposited in the river channel and formed an …

Observed Changes In The Largemouth Bass Population Since Construction Of A New Pump Storage Reservoir At Charleston, Illinois, Lawrence B. Durham

Masters Theses

Lake Charleston, Illinois was electrofished to determine the status of the largemouth bass (Micropterus salmoides, Lacepede) population after its reconstruction into a pump storage reservoir. The changes observed were an increased rate of growth of the initial year class, increased average growth increment of older bass, and a more abundant bass population. Factors which may have influenced increased growth were decreased turbidity, alkalinity, and increased water level. There is a possibility the increase in water level led to an increase in terrestrial invertebrates as a food source, and increased spawning substrate and cover due to submerged terrestrial vegetation. …

Habitat Selection Related To Resource Availability Among Cavity-Nesting Birds, Timothy Brush

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Variation in snag species and abundance appeared to explain most of the habitat selection patterns observed in five cavity-nesting riparian species over a three-year period. All species except Ash-throated Flycatchers were most common in areas with cottonwood or willow snags, which have relatively soft wood and are preferred nest sites. Classification of habitats on the basis of nest-site characteristics was useful and should be considered in other habitat selection studies.