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Articles 33361 - 33390 of 36499

Full-Text Articles in Animal Sciences

End Matter, Vol. 13 No. 2 Apr 1971

End Matter, Vol. 13 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


End Matter, Vol. 13 No. 3 Apr 1971

End Matter, Vol. 13 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Front Matter, Vol. 13 No. 2 Apr 1971

Front Matter, Vol. 13 No. 2

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Front Matter, Vol. 13 No. 3 Apr 1971

Front Matter, Vol. 13 No. 3

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


A Taxonomic Revision Of The Weevil Genus Tychius Germar In America North Of Mexico (Coleoptera: Curculionidae), Wayne E. Clark Apr 1971

A Taxonomic Revision Of The Weevil Genus Tychius Germar In America North Of Mexico (Coleoptera: Curculionidae), Wayne E. Clark

Brigham Young University Science Bulletin, Biological Series

A study of morphological characters of 4,000 adult weevils used in preparing a key and descriptions indicates there are fifteen North American species in the genus Tychius Germar. Adults occur on plants in the genera Astragalus, Baptisia, Hedysarum, Lotus, Lupinus, and Oxytropis.

The genus is divided into two species groups. The T. sordidus group appears to have representatives in the Old World fauna, but the T. semisquamosus group is probably native to North America. New names, Tychius caesius, and T. hirsutus are proposed for T. armatus Green, 1920 (not Tournier, 1873), and T. hirtellus LeConte, 1876 (not Tournier, 1873) respectively. …


Notes On Eriogonum - Vi : A Revision Of The Eriogonum Microthecum Complex (Polygonaceae), James L. Reveal Apr 1971

Notes On Eriogonum - Vi : A Revision Of The Eriogonum Microthecum Complex (Polygonaceae), James L. Reveal

Brigham Young University Science Bulletin, Biological Series

This revision discusses seven closely related species of Eriogonum (Polygonaceae) found in the western United States of North America. One of the two major species, E. microthecum, is composed of nine varieties which range over a wide area of the Far West. The other major species, E. effusum, is found over a more restrictive geographical range mainly east of the Continental Divide. The remaining five species are primarily restricted to the Colorado-Green river drainage basin of Utah, Colorado, New Mexico, and northern Arizona. Together these entities form the core of a group of plants known as Section Corymbosa. …


Front Matter, Vol. 13 No. 1 Apr 1971

Front Matter, Vol. 13 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


End Matter, Vol. 13 No. 1 Apr 1971

End Matter, Vol. 13 No. 1

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


A Taxonomic Study Of Crotaphytus Collaris Between The Rio Grande And Colorado Rivers, William Ingram Iii, Wilmer W. Tanner Apr 1971

A Taxonomic Study Of Crotaphytus Collaris Between The Rio Grande And Colorado Rivers, William Ingram Iii, Wilmer W. Tanner

Brigham Young University Science Bulletin, Biological Series

Little work has been done previously on the taxonomy of Crotaphytus collaris baileyi. This and the demonstration by Fitch and Tanner that C. c. baileyi is a heterogeneous grouping prompted the present study. Only the populations of the type material, the Upper Colorado River Basin, and the Chihuahuan Desert were studied. Multivariate, variance, canonical and discriminant analyses of external characters were performed, and pattern-coloration characters were examined on living specimens.

The results of the analyses show significance between all three populations. The discriminant functions distinguished between the populations with 80% reliability and patternal characters were discriminatory with near 100% reliability. …


Marine Resource Information Bulletin, Vol. 3, No. 6, Virginia Sea Grant, Virginia Institute Of Marine Science Mar 1971

Marine Resource Information Bulletin, Vol. 3, No. 6, Virginia Sea Grant, Virginia Institute Of Marine Science

Books

  • Field crews study herring spawning sites and nurseries
  • Oyster meats quality index
  • Certified crab meat plants in Maryland


Peace Reigns In Avian Home After Flightiness At Nest Site, Jessie Maye Smith Mar 1971

Peace Reigns In Avian Home After Flightiness At Nest Site, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.


Type Appraisal: Ii. Variation In Type Traits Due To Sires, Herds, And Years, H. D. Norman, L. Dale Van Vleck Mar 1971

Type Appraisal: Ii. Variation In Type Traits Due To Sires, Herds, And Years, H. D. Norman, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Variance components were estimated from type appraisal data to determine the importance of year, herd, sire, and herd x sire effects upon 49 body, udder, and management traits. Estimates were based on over 16,000 appraisals on daughters of Holstein artificial insemination sires. The variation explained by these effects never exceeded 34% of the total variance. Year effects were almost nonexistent (-2 to 3%). Herd effects were small for all traits except feeding speed, body weight, intensity and persistency of edema, and ketosis, and never exceeded 25%.

Most appraisal traits had low heritabilities. The estimate for milking speed was .23 while …


Type Appraisal: I. Effects Of Age And Stage-Of-Lactation On Type Ratings, H. D. Norman Mar 1971

Type Appraisal: I. Effects Of Age And Stage-Of-Lactation On Type Ratings, H. D. Norman

Department of Animal Science: Faculty Publications

Dairy cattle type appraisal data were examined to determine whether body and udder conformation and management ratings were affected by age and period of lactation at appraisal. Data were collected from 1961 to 1968 from 188 herds having over 23,000 Holstein type appraisals. The body and udder traits were scored by scheduled appraisers, and the management traits were coded by each dairyman. Some of the 35 original traits were composed of more than one descriptive characteristic and, as a result, 49 renamed traits were derived from these.

A model was selected that considered years and herds as well as cow …


Type Appraisal: Iii. Relationships Of First Lactation Production And Type Traits With Lifetime Performance, H. D. Norman, L. Dale Van Vleck Mar 1971

Type Appraisal: Iii. Relationships Of First Lactation Production And Type Traits With Lifetime Performance, H. D. Norman, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Phenotypic and genetic correlations were estimated between 48 type appraisal traits and first lactation milk production to determine the importance of appraisal traits in a breeding program from 5,024 records from the New York type appraisal program. Most phenotypic correlations among the type traits were near zero. Depth of udder was the appraisal trait having the highest correlation with first lactation milk (.27) and fat (.23). Multiple correlations of all appraisal traits with first lactation milk and fat were .44 and .40.

Correlations with lifetime variables were calculated from 2,068 records meeting time qualifications. Of the first lactation variables, milk …


Seasonal Bird Activity Signals Spring Winging Toward North, Jessie Maye Smith Mar 1971

Seasonal Bird Activity Signals Spring Winging Toward North, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.


Study To Cover Nesting Habits Of Eagle, Fish Hawk, Jessie Maye Smith Mar 1971

Study To Cover Nesting Habits Of Eagle, Fish Hawk, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.


Spotlight On Bald Eagle During Audubon Outing, Jessie Maye Smith Mar 1971

Spotlight On Bald Eagle During Audubon Outing, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.


End Matter, Vol. 13 No. 4 Mar 1971

End Matter, Vol. 13 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


Front Matter, Vol. 13 No. 4 Mar 1971

Front Matter, Vol. 13 No. 4

Brigham Young University Science Bulletin, Biological Series

No abstract provided.


A Revision Of Cryptantha Subgenus Oreocarya, Larry C. Higgins Mar 1971

A Revision Of Cryptantha Subgenus Oreocarya, Larry C. Higgins

Brigham Young University Science Bulletin, Biological Series

This study is a taxonomic revision of Cryptantha subgenus Oreocarya (Boraginaceae), together with descriptions of species, synonyms, distribution maps, and discussions. The present treatment recognizes fifty-seven species and fourteen varieties, all separated by means of a comprehensive key, A history of the group, along with a discussion of distribution, ecology, and phylogeny is presented. As a basis for the comparison of taxa much of the research has been concentrated on morphological variation in herbarium specimens. Particular attention has been directed to a study of pubescence types, branching patterns, flowers, calyces, and fruit. The herbarium research has been correlated with extensive …


1971 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University Mar 1971

1971 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International "Little I" Agricultural Exposition Catalogs

No abstract provided.


Whole Issue Nebraska Bird Review (March 1971) 39(1) Mar 1971

Whole Issue Nebraska Bird Review (March 1971) 39(1)

Nebraska Bird Review

TABLE OF CONTENTS

Treasurer's Report ....................2

Pileated Woodpecker in Otoe County ....................3

1970 Christmas Count ....................4

Winter Meeting ....................9

1970 Nebraska Nesting Survey ....................10

Notes ....................15

In Memoriam ....................16


Environment Parley Nets Record Crowd, Jessie Maye Smith Feb 1971

Environment Parley Nets Record Crowd, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.


Marine Resource Information Bulletin, Vol. 3, No. 4, Virginia Sea Grant, Virginia Institute Of Marine Science Feb 1971

Marine Resource Information Bulletin, Vol. 3, No. 4, Virginia Sea Grant, Virginia Institute Of Marine Science

Books

  • Chesapeake Bay rock crab
  • Oceanographers investigate Chesapeake Bay surface films
  • Seasonal cycle of oyster meat quality index


Curiosity Often Whetted After Sight Of Waxwing, Jessie Maye Smith Feb 1971

Curiosity Often Whetted After Sight Of Waxwing, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.


Fowls Habits Leave No Room For Valentine-Day Mating Tale, Jessie Maye Smith Feb 1971

Fowls Habits Leave No Room For Valentine-Day Mating Tale, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.


January Visit May Be Record For Martins Visiting Area, Jessie Maye Smith Feb 1971

January Visit May Be Record For Martins Visiting Area, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.


Kentucky Warbler (Vol. 47, No. 1), Kentucky Library Research Collections Feb 1971

Kentucky Warbler (Vol. 47, No. 1), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Morphological Variation In Stenoderma Rufum, J, Knox Jones Jr., Hugh H. Genoways, Robert J. Baker Feb 1971

Morphological Variation In Stenoderma Rufum, J, Knox Jones Jr., Hugh H. Genoways, Robert J. Baker

University of Nebraska State Museum: Mammalogy Papers

For more than 100 years, the red fruit-eating bat, Stenoderma rufum Desmarest, 1820, was known only by a specimen of unknown geographic provenience. Anthony ( 1918, 1925) rediscovered Stenoderma in Puerto Rican cave deposits, but the first living specimens to be reported since the original description were taken on St. John in the Virgin Islands (Hall and Bee, 1960). Subsequently, Tamsitt and Valdivieso (1966) recorded living representatives from Puerto Rico-from a population later named and described as a distinctive subspecies, Stenoderma rufum darioi, by Hall and Tamsitt (1968). The latter authors also reported a specimen of S. r. rufum …


Modest Effort Adds Sanctuary For Urban-Oriented Wild Fowl, Jessie Maye Smith Jan 1971

Modest Effort Adds Sanctuary For Urban-Oriented Wild Fowl, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.