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Comparative Behavior And Relationships Of The Eiders, Paul A. Johnsgard

Papers in Ornithology

Pair-forming and copulatory displays of the four species of eiders are described and illustrated, based on observations of captive and wild specimens. Behavioral differences indicate that two genera (Polysticta and Somateria) of eiders should be recognized, and that Lamponetta should be considered a synonym of Somateria. Racial differences in the displays of Somateria mollissima mollissima and S. m. v. nigra are explained on the basis of sympatry between the latter and S. fischeri, producing selection for display divergence that has not affected S. m. mollissima. Similarities in the behavior patterns of the eiders and the …

Ducks Attract Attention On Upper Lake Worth (Baldplate), Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

3 Enjoy Utopianism Near Johnson Home, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

February Mate-Choosing Month For Most Of Bird Kingdom, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Bald Eagle Highlight Of Hagerman Refuge, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Kentucky Warbler (Vol. 40, No. 1), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Sparrow Can Be Noble Bird, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Audubon's Jay Mistake Perpetuated On Stamp, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

You Meet Barn Owls In Oddest Places, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Meeting Seen As Nature Center Key, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Find Of 2 New Birds Highlighted Avian '63 (Handley's, Tacrun), Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Cell Mitosis During Skin Wound Healing, Frank M. Noice

Journal of the Minnesota Academy of Science

It has been well documented that an open (incised) skin wound through the epidermis and into the underlying dermis, results in a rapid, within 24 hours, and abnormal rise in the epidermal mitotic rate. The mitotic rate may be more than ten times the normal maximum, and is highest among those cells closest to the wound edge and lowest, near the normal rate, about 1 mm. from the wound edge. The decreasing mitotic rate within 1 mm. of the wound edge holds quite constant regardless of the size of the open wound. The theoretical explanation of this situation is presented …

Nesting Habits Of The Soft-Shelled Turtles (Trionyx Sp.), Rory Neil Vose

Journal of the Minnesota Academy of Science

Soft-shelled turtles (Trionyx Sp.) are common along the Mississippi River but, in spite of their abundance, the literature contains very few accounts of their life history, particularly with respect to nesting. The principal contributions concerning the ecology of Trionyx have been made by Breckenridge (1944); Cahn (193 7); Carr (1952); Ditmars (1936); and Pope (1939 and 1955).

The present study was undertaken to learn more about the nesting habits of the Trionyx turtles in the area near Winona, Minnesota. Because of the great similarity between species of Trionyx turtles, and because close observation would have disturbed their normal nesting activities, …

Cedar Creek Natural History Area, 1963, William H. Marshall

Journal of the Minnesota Academy of Science

This paper is to inform members of the Minnesota Academy of Science and other citizens of the state as to the present status of the Cedar Creek Natural History Area. It is necessary for several reasons: first, as an opportunity to fully acquaint you with the contributions of the late Dr. Arthur N. Wilcox and Dean T. H. Fenske, and second, because we are entering a new phase in the evolution of the project.

Populations Of Peritrichs On The Pond Snail, Physa Gyrina Say, Peter Moyle

Journal of the Minnesota Academy of Science

There are many obscure niches in a, pond that make fascinating ecological studies. The shell of a pond snail such as Physa gyrina Say, is one of these. In this study alone, 18 species of attached animals and plants were found growing on P; gyrina shells. About half of these species occurred on the shells in large numbers and completed a large part of their life cycle there. On P. gyrina, the most abundant animals included three species of protowans and a tendipedid larva. The protozoan species, Epistylus niagarae Stokes, Opercularia ramosa Stokes, and V orticella campanula Ehrenberg all belong …

Species Composition Within States For The 1962-63 And 1963-64 Hunting Seasons, Glen Smart

United States Fish and Wildlife Service: Publications

This paper considers the species composition of the duck kill in each State as determined by the Duck Wing Collection Surveys during 1962-63 and 1963-64 hunting seasons. Two-thirds of the annual kill was made up of mallards, black ducks, pintails, wood ducks, and green-winged teal. Mallards were the most common species taken in all Flyways except the Atlantic where the black duck was most abundant.

The American Eagles And Their Economic Status, E. R. Kalmbach, Ralph H. Imler, Lee W. Arnold

United States Fish and Wildlife Service: Publications

For centuries eagles have captured the fancy of man the world over. Because of its extensive range in the northern hemisphere, the golden eagle is the most widely known of this group of birds. Its use in falconry was the sport of kings. The frequency of its appearance in royal coats of arms indicated its importance. It is the national emblem of Germany and Mexico.

In North America the bald eagle as well as the golden eagle represents this group of powerful birds of prey. The bald eagle is strictly an American species, and the founders of the United States …

Weaning Lambs Under Pastoral Conditions, H Suijdendorp, L. Parsons

Journal of the Department of Agriculture, Western Australia, Series 4

IN the summer rainfall region of the pastoral areas lambs are too often born too late to ensure their survival.

In good seasons with a fair measure of winter rain more late lambs will survive, but losses are still serious. The only solution to this problem is to make sure lambs drop in May-June.

But the presence of late and often unmarked lambs at mating time is a disturbing influence, which makes it hard to advance the established mating pattern.

Range Feeding Of Cotton By-Products In The Kimberleys, John Hubert Auty

Journal of the Department of Agriculture, Western Australia, Series 4

Commercial cotton production has started in the Ord River area and by-products of the industry will soon be available for stock feeding in the surrounding pastoral areas.

Cotton seed and cotton seed meal will cause digestive upsets if fed in any quantity to horses, poultry or pigs.

Ruminants have no trouble in handling the material and the Kununurra ginnery could supply a useful protein supplement for Kimberley cattle.

The Causes And Control Of Infertility Of Rams, J Craig

Journal of the Department of Agriculture, Western Australia, Series 4

FACTORS other than physical faults often cause infertility of rams.

Obviously, it is important to distinguish between temporary and permanent infertility to apply the proper remedy.

Fisheries Report No I (1) - The Shark Bay Fishery On Snapper Chrysophrys Unicolor (Quoy And Gaimard), B. K. Bowen

Fisheries Research Reports

As regards both catch and value, the Shark Bay snapper fishery is the second most important scale fishery in Western Australia. Until 195%, the fishing was done solely by means of hard-lines operated from beats drifting over the snapper patches. In 1959 traps were first used with great success and in 196) this method of fishing was again the principal technique.

Prior to the 1960 season there were several suggestions that the use of traps would have a deleterious effect on the fishery. On October 19, 1959, the Western Australian League of the Professional Fishermen's Association wrote to the Fisheries …

Comparative Behavior And Relationships Of The Eiders, Paul A. Johnsgard

Papers in Ornithology

One of the more controversial systematic problems existing in the family Anatidae concerns the taxonomic rank and evolutionary relationships of the four species of eiders, which are currently considered by the American Ornithologists’ Union (1957) to comprise three genera (Somateria, Lampronetta, and Polysticta) in the diving duck subfamily Aythyinae. In 1945, however, Delacour and Mayr included the eiders in a single genus (Somateria) within the sea duck tribe Mergini. At present, Delacour (1959) considers the eiders a separate tribe, Somateriini, distinct from the other sea ducks, and placed near the dabbling duck tribe Anatini. The erection …

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 …

Block And Bridle Annual, 1964

Block and Bridle Annual (1933–2021)

Table of Contents:

Dedication
Animal Science buildings
Animal Science Faculty
Picture of Club Members
Block and Bridle Club Officers
Block and Bridle Advisor
Sample Minutes
Financial Statement
Merit Trophy Winner
Calendar of Events
Speakers
Initiations
Purebred Ewe Sale
Ham Sale
Ag Union Winter Dance
Showmanship Contest
Tour
Judging Contest
Quarter Horse Show
Honors Banquet
Feeders Day
Picnic

The Effect Of Mulesing And Tailstripping At Lamb Marking On Subsequent Lamb Growth And Incidence Of Fly Strike, R J. Lightfoot, W. L. Mcgarry

Journal of the Department of Agriculture, Western Australia, Series 4

THE modified mules and tailstrip operation has been shown to be highly effective in reducing the incidence of crutch strike in sheep.

In Western Australia the operation is usually performed on ewe weaners or hoggets immediately after either crutching or shearing.

Dairy Farming In The Busselton-Margaret River District. Part 1. Stage Of Development, R A. Bettenay

Journal of the Department of Agriculture, Western Australia, Series 4

This article is the first of four in a series reporting a survey of farming practices in the Busselton-Margaret River area.

Besides the development of farms the series will cover farm stocking rates and milk production on farms in the area.

THE survey of farms in the Busselton-Margaret River district began at the end of the 1962 season.

Information on the stage of development of the properties was obtained from 94 farmers during advisory visits.

Final Report : Sixth (1962-63) Western Australian Random Sample Laying Test, R H. Morris, F. A. E. Hunt

Journal of the Department of Agriculture, Western Australia, Series 4

FINAL REPORT SIXTH (1962-63) WESTERN AUSTRALIAN RANDOM SAMPLE LAYING TEST

Final Report to December, 1963, covering a period of 500 days (71 3/7 weeks), comprising a 150-day (21 3/7 week) rearing period and a 350-day (50-week) laying period.

The Animal Quarantine Service, R K. Kent

Journal of the Department of Agriculture, Western Australia, Series 4

Exotic diseases are a constant threat to Australia's animal industry and there are many reasons for the uncompromising ban on the import of certain animals from overseas.

Such diseases as foot and mouth and blue tongue would cost Australia a tremendous amount of money if they became established here.

Just how Australia protects itself against the introduction of exotic diseases is described by Veterinary Surgeon, R. K. Kent, M.R.C.V.S., in this article .

One Shot Baiting, C D. Gooding, L. A. Harrison

Journal of the Department of Agriculture, Western Australia, Series 4

THE Agriculture Protection Board introduced the first of its contract poisoning schemes in 1955 in the lower South-West when three units undertook the first "1080" poisoning for farmers in Western Australia.

The originators of one-shot baiting describe this new technique and explain how it should be used for best results on the farm.

Attack The Rabbit At Home : Destroy Warrens And Harbourage, J S. Crawford

Journal of the Department of Agriculture, Western Australia, Series 4

Effective rabbit destruction often calls for a carefully worked out control programme consisting of poisoning, fumigating and warren and harbourage destruction.

Possibly the most effective means of not only controlling rabbits but ultimately eradicating them from holdings is the destruction of warrens and harbourage.