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Articles 18721 - 18750 of 19785

Full-Text Articles in Life Sciences

Front Matter, Elephant Editors May 1979

Front Matter, Elephant Editors

Elephant

Table of Contents and Cover credits


Observations In Tsavo National Park, Kenya, Evans E. Mgaah May 1979

Observations In Tsavo National Park, Kenya, Evans E. Mgaah

Elephant

Personal observations from four years as a game ranger in Tsavo National Park, Kenya.


Captive Elephant Population Of North America: 1979 Update, Elephant Editors May 1979

Captive Elephant Population Of North America: 1979 Update, Elephant Editors

Elephant

Survey of elephants in captivity, 1979.


Observations Of Elephants In East And Southern Africa, Jeheskel Shoshani May 1979

Observations Of Elephants In East And Southern Africa, Jeheskel Shoshani

Elephant

Selected short observations on African elephants (Loxodonta africana) made during 1978 in East and Southern Africa.


Iucn/Wwf Help Wanted, Elephant Editors May 1979

Iucn/Wwf Help Wanted, Elephant Editors

Elephant

A published plea from the IUCN/World Wildlife Fund Conservation Programme in Indonesia asking for information regarding endangered elephants in Sumatra.


Homeless Cats And Dogs Are Suffering And Dying May 1979

Homeless Cats And Dogs Are Suffering And Dying

Close Up Reports

Last year more than 13 million homeless cats and dogs were euthanized at humane societies and municipal animal shelters. As a statistic, 13 million may be meaningless. But think of it another way. Think of the 13 million as individual animals with individual personalities--each with their own beating heart, each with their own wretched story of how they found their way to the animal shelter. Each one was an individual breathing creature whose life was ended because there was no home to go to.


Effects Of Forage Availability On Voluntary Intake And Feeding Behavior Of Grazing Heifers, Anastasios S. Nastis May 1979

Effects Of Forage Availability On Voluntary Intake And Feeding Behavior Of Grazing Heifers, Anastasios S. Nastis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Forage intake by animals is an important factor in determining production of livestock products from rangelands. However, relatively little is known of effects of such forage variables as availability and distribution in space upon intake. Even less is known about how the grazing animal modifies its feeding tactics when confronted with diminishing or limited supplies of available forage and how such altered behavior may affect the animal's energetic cost for existence. Forage intake, body weight gain, grazing time and biting rate of Angus heifers was related to forage availability and plant height on semiarid crested wheatgrass rangeland during the late …


Elephant Symposium And Related Activities, Elephant Editors May 1979

Elephant Symposium And Related Activities, Elephant Editors

Elephant

Agenda for the upcoming Elephant Symposium at the American Society of Mammalogists 59th Annual Meeting, June 20th, 1979.


Information From The Elephant Interest Group Questionnaire, Elephant Editors May 1979

Information From The Elephant Interest Group Questionnaire, Elephant Editors

Elephant

Elephant-related activities of answering respondents to the newsletter's questionnaire.


Report On The Elephants Of Tongaland, Clive Walker May 1979

Report On The Elephants Of Tongaland, Clive Walker

Elephant

Report from a preliminary survey of elephants in Southern Africa by the Endangered Wildlife Trust Elephant Group.


Financial Report And Acknowledgments, Elephant Editors May 1979

Financial Report And Acknowledgments, Elephant Editors

Elephant

Accounting of the Elephant Interest Group for production of the journal.


Bibliography, Elephant Editors May 1979

Bibliography, Elephant Editors

Elephant

Updates to the selected bibliography covering references from 1970 - mid-1979.


Isolation Of Mycoplasma From The Genital Tracts Of Elephants, Harold W. Clark, Daniel C. Laughlin, Jack S. Bailey, Thomas Mcp Brown May 1979

Isolation Of Mycoplasma From The Genital Tracts Of Elephants, Harold W. Clark, Daniel C. Laughlin, Jack S. Bailey, Thomas Mcp Brown

Elephant

The authors report finding arthritogenic agents, mycoplasmas, for the first time in a large group of captive elephants that are frequently crippled with rheumatism.


Iucn Elephant Survey And Conservation Programme: Summary Of Interim Report On Elephants In Kenya, Alison K. K. Hillman May 1979

Iucn Elephant Survey And Conservation Programme: Summary Of Interim Report On Elephants In Kenya, Alison K. K. Hillman

Elephant

Preliminary summary of evidence on the status and population trends of elephants in Kenya, condensed from the original.


Klaserie Elephant Project: Progress Report, Clive Walker May 1979

Klaserie Elephant Project: Progress Report, Clive Walker

Elephant

Report from an aerial survey of elephant population in the Klaserie Private Nature Reserve in South Africa.


The Elephants Of Interview Island, Romulus Whitaker May 1979

The Elephants Of Interview Island, Romulus Whitaker

Elephant

Report from survey work on elephants living on the Andaman Islands in the Bay of Bengal, June, 1977.


Known Elephant Distribution In Africa: An Updated Map, Iain Douglas-Hamilton, Alison K.K. Hillman May 1979

Known Elephant Distribution In Africa: An Updated Map, Iain Douglas-Hamilton, Alison K.K. Hillman

Elephant

Map depicting the elephant distribution in Africa as of Spring 1979.


Suggested Mechanical Model Of Elephant Trunk Muscle Tissue And Its Sheer Conjecture, Norris Whitehall May 1979

Suggested Mechanical Model Of Elephant Trunk Muscle Tissue And Its Sheer Conjecture, Norris Whitehall

Elephant

A detailed simile modeling elephant trunk muscle tissue.


The Addo Elephant Research Project: A Brief Introduction, Anthony Hall-Martin May 1979

The Addo Elephant Research Project: A Brief Introduction, Anthony Hall-Martin

Elephant

Description of "an intensive research programme on the ecology, population dynamics, and behaviour" of elephants in the Addo Bush area of Cape Province, South Africa, launched in May 1976.


Ivory And Ivorine, Elephant Editors May 1979

Ivory And Ivorine, Elephant Editors

Elephant

Items from news and other reports relating to ivory and ivorine.


Iucn/Wwf Elephant Survey And Conservation Programme Questionnaire, Elephant Editors May 1979

Iucn/Wwf Elephant Survey And Conservation Programme Questionnaire, Elephant Editors

Elephant

A survey soliciting data from captive elephants.


Elephant Interest Group Questionnaire, Elephant Editors May 1979

Elephant Interest Group Questionnaire, Elephant Editors

Elephant

Form for consideration for the Elephant Interest Group.


A Note From The Editor, Jeheskel Shoshani May 1979

A Note From The Editor, Jeheskel Shoshani

Elephant

Dr. Shoshani introduces the newsletter and documents increasing interest and support.


Elephants In The News, Elephant Editors May 1979

Elephants In The News, Elephant Editors

Elephant

"Motty"-- Birth of an African/Asian elephant at Chester Zoo; Elephants at the Washington Park Zoo, Portland, Oregon, USA; Elephants at the Knoxville Zoo, Knoxville, Tennessee, USA; "Dima"--26,000-year-old baby mammoth tissues are being studied at the University of California and Wayne State University, USA


Recent Correspondence, Elephant Editors May 1979

Recent Correspondence, Elephant Editors

Elephant

Letters from Pieter deVilliers, Richard Lair, and Norris Whitehill


Elephant Interest Group - Membership List, Elephant Editors May 1979

Elephant Interest Group - Membership List, Elephant Editors

Elephant

Mailing List for the Elephant Interest Group. This document contains sensitive personal information and is therefore not openly available on this site. Please contact the administrators for details.


Errata And Comments For Elephant Newsletter No. 2, Elephant Editors May 1979

Errata And Comments For Elephant Newsletter No. 2, Elephant Editors

Elephant

Errata and comments for Elephant Newsletter No. 2


Miscellaneous, Elephant Editors May 1979

Miscellaneous, Elephant Editors

Elephant

Including: a plea for publication of The African Elephant Bibliography; Errata and comments for Elephant 1.2; Information for readers; Proposal of an elephant hotline; and prompts for reader opinion


Population Limitation Of Jackrabbits: An Examination Of The Food Hypothesis, William R. Clark May 1979

Population Limitation Of Jackrabbits: An Examination Of The Food Hypothesis, William R. Clark

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The study was conducted to examine the importance of forage resources in limiting peak population density of black-tailed jackrabbits (Lepus californicus). The research design combined field studies of jackrabbit diet and vegetation impact with computer simulation of herbivore nutrition and population dynamics. The relationships between available forage, dietary intake, energy and protein balance and population changes were compared for high and low population density. Hypotheses tested were : (1) Dietary composition is unaffected by availability above 10 kg/ha; (2) Jackrabbits do not require more forage than is available at high population densities; (3) Dietary composition is not significantly …


Information Transfer And Regulation In A Model Ecosystem With Environmental Stochasticity, M. Mckee May 1979

Information Transfer And Regulation In A Model Ecosystem With Environmental Stochasticity, M. Mckee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The concept of regulation in ecosystems has been given considerable attention in the ecological literature, but no formal treatment has been offered. This study proposes a rigorous definition of regulation which is derived from the mathematics of information and communication theory. A theoretical, mathematical equivalent of the definition is also offered which implies serious limitations as to the value of most traditional laboratory population studies and deterministic population models in understanding regulation in ecosystems. The empirical validity of this theoretical equivalence is tested through use of a competition model of two diatoms. Other observations concerning the relationship between environmental variability …