Life Sciences Commons^™

Vocalizations Of Isolated Piglets. Ii. Some Environmental Factors, D. Fraser

Communication Skills Collection

The vocalizations of suckling piglets were studied during brief tests which involved social isolation, restriction of movement, and exposure to unfamiliar surroundings. Similar trends were shown in most cases by the three classes of call studied - closed mouth grunts, open mouth grunts, and squeals. The rate of calling was much lower when a piglet was in the home pen than when alone in an unfamiliar pen, and more calls were given in both situations when the animal’s movement was restricted by caging. The presence of the dam and four littermates in unfamiliar surroundings caused a large reduction in calling, …

Whole Issue Nebraska Bird Review (December 1975) 43(4)

Nebraska Bird Review

Table of Contents

Spring Waterfowl Migration in Lancaster County - 1970.................. 70

Merlin Nest in Nebraska ..................78

A Groove-billed Ani Seen Again in Nebraska.................. 79

A Brown Creeper's Nest in Nebraska.................. 80

First Pleistocene Record of the Golden Eagle from the Central Great Plains.................. 84

Notes.................. 84

Index of Volume XXX XIII ..................85

Biology And Management Of River Herring And Shad In Virginia : Annual Report, Anadromous Fish Project 1975, Walter J. Hoagman, William H. Kriete

Reports

The number of pound nets and the catch of· alosines per net continued to decline in 1975. Effort by sta.ke gill nets.· increased but catch estimates declined. The James River · yielded an estimated 853,847 pounds of American shad (down 47% from 1974) with the peak of the run at the end of March. Stake gill nets landed 246,036. pounds of American shad in the York River, a decrease from 1974. Estimates of Hickory shad landings declined 83% in the York River. Pound nets in the Rappahannock River had a 75% reduction in American shad catch and stake gill net …

Physiological Adaptations Of Aquatic Turtles, Oscar Gloor

Honors Theses

Naturalists have long noted the remarkable ability of aquatic turtles to remain submerged for long periods of time. Only recently, though, has much serious attention been given to discovering the mechanisms which enable turtles to survive for so long in the relatively hypoxic aquatic environment.

Sciurus Richmondi, J. Knox Jones Jr., Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Sciurus richmondi Nelson, 1898
Richmond's Squirrel

Sciurus richmondi Nelson, 1898:146. Type locality Escondido River, 50 mi. above Bluefields, Nicaragua (Nelson, 1899:100).

Context and Content
Order Rodentia, Family Sciuridae. The genus Sciurus is widely distributed in both the Old and New worlds. S. richmondi is a monotypic species closely related to S. granatensis; both species are members of the subgenus Guerlinguetus.

Dipodomys Phillipsii, J. Knox Jones Jr.

University of Nebraska State Museum: Mammalogy Papers

Dipodomys phillipsii Gray, 1841
Southern Banner-tailed Kangaroo Rat

Dipodomys phillipsii Gray, 1841:522. Type locality "near Real del Monte," Hidalgo.
Dipodomys ornutus Merriam, 1894:110. Type locality Berriozi-bal, Zacatecas.
Dipodomys perotensis Merriam, 1894:111. Type locality Perote, Veracruz.

Sturnira Thomasi, J. Knox Jones Jr., Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

Sturnira thomasi de la Torre and Schwartz, 1966
Guadeloupe Yellow-shouldered Bat

Sturnira thomasi de la Torre and Schwartz, 1%6:299. Type locality Sofaia, 1,200 ft., island of Guadeloupe, Lesser Antilles.

Context and Content: Order Chiroptera, Family Phyllostomatidae, Subfamily Stenoderminae. The genus Sturnira contains about 10 species and is confined to the tropical and subtropical regions of the New World. Sturnira thomasi is a monotypic species.

Marine Resource Information Bulletin Vol. 7, No. 7, Virginia Sea Grant, Virginia Institute Of Marine Science

Virginia Marine Resource Bulletin

No abstract provided.

Kentucky Warbler (Vol. 51, No. 4), Kentucky Library Research Collections

Kentucky Warbler

No abstract provided.

Additional Records Of The Stenodermine Bat, Sturnina Thomasi, From The Lesser Antillean Island Of Guadeloupe, Hugh H. Genoways, J. Knox Jones

University of Nebraska State Museum: Mammalogy Papers

Sturnira thomusi was named and described by de la Torre and Schwartz (Proceedings of the Biological Society of Washington 79: 297-303, 1966) on the basis of a single male from the island of Guadeloupe, Lesser Antilles, that was captured by Richard Thomas in 1963. The holotype of S. thomasi has until now been the only known specimen of this unique species. In late July of 1974, a field party from the Museum of Texas Tech University (supported by a grant from the National Science Foundation, GB-41105) collected bats on Guadeloupe and took four additional individuals of S. thomasi, all …

Injectable Famphur For Control Of Grubs In Cattle, P. H. Kohler, R. N. Gates, L. B. Embry, L. B. Embry

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1975

Grubs are a major pest of cattle and cause considerable economic loss to the cattle industry. Running of cattle and standing in available water sources during heel fly strikes no doubt are reflected in lighter weaning weights of claves because of reduced grazing time and cows becoming separated from their calves. Other losses to producers and feeders include possible reduced feedlot performance by grub infested animals, weight loss and down grading of carcasses that are trimmed to remove areas damaged by grubs and a lower value for hides due to grub holes. Several effective products and methods of treatment are …

Feedlot Health Through Preventative Management, M. W. Vorhies

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1975

Livestock production has become increasingly intensive and the momentum of the change has been so great that realistically it has been instrumental in presenting the Veterinarian with problems that have outstripped his knowledge.

How Energy Level In Ration, Market Weight And Type Of Cattle Influence Beef Carcass Traits, W. J. Costello, L. B. Embry, W. S. Swan

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1975

An experiment reported in this publication under the title "Energy Level in Ration, Market Weight and Types of Cattle" provided material to observe the influence of the three factors listed on beef carcass characteristics. Details describing the cattle, rations and market weights are presented in that report.

Marketing Margins For Beef And Related Considerations, Bruce A. Ginn

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1975

In an environment where inflation has become a way of life, rising prices are a natural accomplice. High prices are fine--for the seller. But those of us who wear the hat of the consumer (and that's all of us) greet escalating costs with a less than joyful attitude. The question is, Can consumers, longshoremen, producers, shippers, and the Russians find happiness together? In some respects the interests of the producer and the consumer may not be significantly different and could form the basis of an alliance in which marketing innovations could take place.

Nineteenth Annual Cattle Feeders Day, Animal Science Department

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1975

These are the complete proceedings of the nineteenth annual Cattle Feeders Day held on October 31, 1975 at South Dakota State University.

Soybean Meal Or Urea During Feedlot Adaptation And Growing Of Calves, R. N. Gates, L. B. Embry

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1975

This experiment investigated the response by calves to different levels of protein during the first four weeks of feedlot adaptation using soybean meal, urea or a combination of the two sources. Following the adaptation period, the calves were continued on experiment for a growing phase to compare soybean meal and urea as supplements to corn silage.

Energy Level In Ration, Market Weight And Types Of Cattle, L. B. Embry, W. J. Costello, W. S. Swan

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1975

The effect of body size on feed efficiency has been the subject of research for several years. Evidence was presented from some of the early research that body weight is unrelated to feed efficiency. Recent research has also shown that current recommended net energy requirements, such as those by the National Research Council, for growing and finishing beef cattle are valid for various sizes and types of beef animals. Large-bodied cattle gaining at a faster rate require more feed and should be fed ro heavier weights to reach best market grade.

Acid-Treated Vs. Dried Corn With And Without Zeranol Implants For Finishing Cattle, L. B. Embry, R. C. Ward

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1975

Corn grain is frequently harvested at a moisture content too high for safe keeping under conventional grain storage conditions. While this may be a desirable or necessary practice, the grain must be dried, stored under oxygen-limiting conditions, stored to produce ensiled grain or treated with an effective preservative to prevent spoilage during storage. Each of these methods is being used for preservation and storage of corn when harvested at a high-moisture content (20 to 30%) and used for feeding livestock. Total costs including storage structures, losses in processing and storage and comparative feeding value are factors involved in choice of …

Diethylstilbestrol, Zeranol Or Synovex-S Implants For Finishing Steers, L. B. Embry, W. S. Swan

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1975

Direct comparisons between DES, zeranol and Synovex implants and a non-implanted control under various conditions and are more limited. In the experiment reported here, implants of the three products were compared to a nonimplanted control when steers were fed finishing rations with and without roughage.

Factors Affecting The Cattle Industry Outlook Situation, Gene E. Murra

South Dakota Cattle Feeders Field Day Proceedings and Research Reports, 1975

Historically, many of the demand and supply relationships which impact on the cattle industry in the United States and South Dakota have been rather easy to analyze. This is not true today--many of the old, simple relationships have become complex. The purpose of this paper will be to present some of the demand and supply relationships as they pertain to outlook.

The March Ice Storm: Disaster And Opportunity, Paul Matthiae, Philip B. Whitford

Field Station Bulletins

The ice storm of March 1-5,1976, of perhaps once in a century severity, hit the UWM Field Station with ice loads up to 2 in. thick. The crowns of many trees, especially older beech and maple, were literally torn asunder by the sheer weight. In the swamp forest most tamaracks had their tops snapped off. The beech-maple forest of course was one of the Nature Conservancy's first major projects in Wisconsin, one of the jewels of the Scientific Areas System, and fortunately one of the most thoroughly studied tracts in the state. We had excellent pre-storm data on the forest …

Soil Monolith Construction: A Practical Teaching Experience For Field And Lab, Nicholas P. Kobriger, James B. Levenson

Field Station Bulletins

Soil formation, structures and differences are difficult to visualize or understand without being able to experience them. Most of us are familiar with the soil profiles (soil sequum) on display in many Soil Conservation Service or County Extension Service offices. Whether an ecologist, engineer, or home gardener, we have all examined the intricate structures, features and horizon development. The objective of this paper is to describe a technique to construct such soil monoliths for classroom use with minimal expense.

Mineral Cycling And Productivity In An Upland Deciduous Forest: Soils And Methods, Nicholas P. Kobriger

Field Station Bulletins

This study was designed to improve our understanding of the dynamics of the upland forest and of the productivity of Wisconsin forest communities. Data were collected to quantify the biological cycling of nutrients, nutrient availability and water availability, the principal factors supporting production of organic matter in forest ecosystems (Duvineaud and Denaeyer-De Smet, 1970). Using the data from this study we can then examine the stability of the upland deciduous forest and its response to the environment, for example recovery from a catastrophic event such as the March ice storm. Once this ecosystem's structure and functioning are known, we can …

Landscape Patterns And Forest Island Interactions, Forest Sterns, James B. Levenson, Paul Matthiae

Field Station Bulletins

On March 18, the Field Station welcomed faculty and graduate students involved in the Landscape Pattern Analysis project. This study has both theoretical and practical objectives. The theoretical problems are concerned with island biogeography as outlined by Robert MacArthur and E. O. Wilson were discussed in the Spring 1975 Field Station Bulletin. These questions relate principally to how island size and distance from neighboring islands affect species composition and extinction, i.e., affect the diversity of island communities. These theoretical questions are being approached in a series of studies undertaken jointly by scientists at the Oak Ridge National Laboratory, Rutgers University, …

Cold Air Drainage: A Field Experiment, James Levenson, Paul Matthiae

Field Station Bulletins

The following descriptions of a 24-hour cycle of the flows of radiant energy in November 1974 were written as follow-up assignments to a class exercise measuring these energy flows at the Field Station (Meteorology 511 - Dynamic Meteorology I: Radiation). All the flows of short-wave (or solar) radiation (wave length less than 3 micrometers) and long-wave radiation (wave lengths 3 to 50 micrometers) were measured, and their interrelations calculated.

Vocalizations Of Isolated Piglets. I. Sources Of Variation And Relationships Among Measures, D. Fraser

Communication Skills Collection

The vocalizations and activity of suckling piglets aged 4 to 25 days were studied during 5-min periods of social isolation in an unfamiliar enclosure. The animals became very active and vocalized repeatedly during the test, but the reaction was attenuated among older litters. Calls were predominantly closed mouth grunts at low rates of calling, and mainly squeals and open mouth grunts at high overall rates. Squealing correlated with open mouth grunting and with the activity measure both within and between litters. Even so, the measures appeared to be affected independently by the piglets’ behaviour in the home pen just before …

Venezuelan Macronyssidae (Acarina: Mesostigmata), Robert C. Saunders

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Systematics Of Neotropical Hirstionyssus Mites With Special Emphasis With Special Emphasis On Venezuela (Acarina: Mesostigmata), C. Selby Herrin, Conrad E. Yunker

Brigham Young University Science Bulletin, Biological Series

This paper presents the results of a systematic study of mites of the genus Hirstionyssus Fonseca collected from mammals, primarily in Venezuela, but including one collection each from Colombia, Nicaragua, and British Honduras. Previously described species from Panamá and Brazil are reviewed and new distributional records are listed. The known Neotropical fauna of Hirstionyssus mites includes 15 species, 7 of which are described here as new: H. proctolatus n. sp.; H. brachysternum n. sp.; H. dorsolatus n. sp.; H. rhipidomys n. sp.; H, venezuelensis n. sp.; H. brevicalcar n. sp.; and H. parvisoma n. sp. The previously unknown male and …

Spinturnicid Mites Of Venezuela (Acarina: Spinturnicidae), C. Selby Herrin, Vernon J. Tipton

Brigham Young University Science Bulletin, Biological Series

The results of an extensive survey of spinturnicid mites of bats from Venezuela are presented in this paper. Approximately 30,000 bats were collected from a wide variety of life zones and localities. A representative sample was searched for ectoparasites. There are 3 genera of the family Spinturnicidae in Venezuela: Cameronieta, Periglischrus, and Spinturnix. Three previously described species of Cameronieta were found in the Venezuelan collection. Of the 7 species of Spinturnix previously described from the New World, 4 are reported from Venezuela. The genus Periglischrus constitutes by far the most significant segment of the Venezuelan collection. It is represented by …

Front Matter, Vol. 20 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.