Premium Essay

Black Tailed Prairie Dogs Case Study

Submitted By
Words 1186
Pages 5
Conclusion
To conclude, black-tailed prairie dogs (Cynomys ludovicianus) demonstrated an improved long-term reproductive success until a disproportionate ratio of helpers to breeders (exceeding amount of helpers to breeders) became injurious to the coterie. Our results demonstrated, to some extent, that the helper pool size improves long-term reproductive success of black-tailed prairie dogs, agreeing with Hoogland’s 1981. Our results resolve the conflict between John L. Hoogland and Michener and Murie because we found that black tailed prairie dogs have an increased long-term reproductive success, despite the graph (Graph 1) plateauing and eventual decline with an increase in the number of helpers. Although the number of helpers eventually …show more content…
The graphs constructed from our data displays a steep slope within a 2 to 8 helper range (Graph 1). This demonstrates that within this range an increase in helper pool size directly increases the breeders’ fitness through long-term reproductive success. Therefore, our results support Hoogland’s prediction that black-tailed prairie dogs the greater the helper pool size the more improved long-term reproductive success became, but only within this range. We suppose that having less helpers lowers the need for completion and increases communication among individuals within the coteries between individuals. In brown capuchin monkeys, larger groups devote more time to acquiring food than do smaller groups. Due to the large amounts of energy and time used acquiring food, the more competition among individuals for these resources. This could be a possible explanation for why smaller coteries had more success than larger coteries in black-tailed prairie dogs, but needs further …show more content…
Through further analysis, Mumme found that it was not only the presence of non-breeders; rather he attributes an improved long-term reproductive success to how much the non-breeders helped breeders (Mumme 1992). Although the majority of helpers aided breeders, Florida Scrub Jays' long-term reproductive success greatly depends on how much each helper assists breeders raise young. In other words, the more a non-breeder helps to raise young, the more long-term reproductive success increases. Although our results had a correlation, perhaps the prairie dogs’ long-term reproductive success is effected by the amount in which helpers aid breeders rear young. For instance, if helpers are more efficient at aiding breeders when the helper pool size is low (due to better communication that we observed), then it could improve long-term reproductive success for breeders. Furthermore, when the helper pools size became too large, communication decrease, it could cause a lower efficiency of aiding breeders in which decreases their long-term reproductive success. Therefore, this scenario could explain our

Similar Documents

Premium Essay

Livestock

...does not discuss poultry or farmed fish, although these, especially poultry, are commonly included within the meaning of "livestock". Livestock are generally raised for profit. Raising animals (animal husbandry) is a component of modern agriculture. It has been practiced in many cultures since the transition to farming from hunter-gather lifestyles. History Animal-rearing has its origins in the transition of cultures to settled farming communities rather than hunter-gatherer lifestyles. Animals are ‘domesticated’ when their breeding and living conditions are controlled by humans. Over time, the collective behaviour, life cycle, and physiology of livestock have changed radically. Many modern farm animals are unsuited to life in the wild. Dogs were domesticated in East Asia about 15,000 years ago, Goats and sheep were domesticated around 8000 BC in Asia. Swine or pigs were domesticated by 7000 BC in the Middle East and China. The earliest evidence of horse domestication dates to around 4000 BC[1] Older English sources, such as the King James Version of the Bible, refer to livestock in general as "cattle", as opposed to the word "deer", which then was used for wild animals which were not owned. The word cattle is derived from Old North French catel, which meant all kinds of movable personal property,[2] including of course livestock, which was differentiated from non-movable real-estate ("real property"). In later English, sometimes smaller livestock was called "small cattle" in...

Words: 3007 - Pages: 13

Premium Essay

Contrasting Yokut and Cherokee Culture

...Luis Thompson ANTH 252 Doctor Hemphill Yokuts v. Cherokee I. Introduction This paper is a basic introduction to two native North American tribes; the Yokuts of the California cultural area and the Cherokee of the Southeast cultural area. First I we will delve in to the general backgrounds of these two tribes, followed by an in depth examination of Religious beliefs practiced by each tribe, as well as the Life cycle rituals of the Yokuts and Cherokee. Directly proceeding this we will then contrast the former in depth examinations with that of the Tlingit tribe who resided in the Northwest culture area and also we will contrast The Yokuts and the Cherokee with the Zuni tribe who reside in the Southwest cultural area. General Background: Yokuts The Yokut tribe is a group of native North Americans found in the California culture area. The Yokut tribe inhabited the San Joaquin Valley of California. The Yokut tribe has been broken up into three main groups based on the area that their territory encompassed. The are the Northern Valley Yokuts who inhabited the region beginning in the northern most San Joaquin valley, present day Stockton, to the area where the San Joaquin Valley turns northward toward the Calaveras and Mokelumne rivers, or present day Modesto. The Next division is known as The Southern Valley Yokuts. This group of Yokuts lived in the Southern San Joaquin Valley from the upper forks of the Kings River, present day ...

Words: 6090 - Pages: 25

Free Essay

Manager

...Chap1 Comparing Apples and Oranges The concept of “apples and oranges” relates to the consistency of anything that is compared with something else. Whenever you make a comparison in sentence, you have to make sure the things you compare are , in fact, comparable. Than ①主语比较 1. Because the Earth’s crust is more solid there and thus better able to transmit shock waves, an earthquake in the eastern United States will typically devastate an area 100 times greater than will a quake of comparable magnitude occurring in the West.(D-P35-9) 2.Local residents claim that San Antonio, Texas, has more good Mexican American restaurants than does any other city in the United States. (D-p78-14) 3.The guiding principles of the tax plan released by the Treasury Department could have even greater significance for the economy than do the particulars of the plan. (C-p8-6) 4. Because natural gas is composed mostly of methane, a simple hydrocarbon, vehicles powered by natural gas emit less of certain pollutants than those burning gasoline or diesel fuel. (C-p8-16) 5. The United States government employs a much larger proportion of women in trade negotiations than does any other government. (C-p22-8) 6. The pay of senior executives increased in 1990 by a larger percentage than did the wages of other salaried workers. (C-p67-5) 7. A newly developed jumbo rocket, which is expected to carry the United States into its next phase of space exploration, will be able to deliver a heavier load...

Words: 31163 - Pages: 125

Free Essay

Grammar Worksheet

...GLENCOE LANGUAGE ARTS Grammar and Language Workbook G RADE 9 Glencoe/McGraw-Hill Copyright © by The McGraw-Hill Companies, Inc. All rights reserved. Except as permitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or means, or stored in a database or retrieval system, without the prior written permission of the publisher. Send all inquiries to: Glencoe/McGraw-Hill 936 Eastwind Drive Westerville, Ohio 43081 ISBN 0-02-818294-4 Printed in the United States of America 1 2 3 4 5 6 7 8 9 10 024 03 02 01 00 99 Contents Handbook of Definitions and Rules .........................1 Troubleshooter ........................................................21 Part 1 Grammar ......................................................45 Unit 1 Parts of Speech 1.1 Nouns: Singular, Plural, and Collective ....47 1.2 Nouns: Proper and Common; Concrete and Abstract.................................49 1.3 Pronouns: Personal and Possessive; Reflexive and Intensive...............................51 1.4 Pronouns: Interrogative and Relative; Demonstrative and Indefinite .....................53 1.5 Verbs: Action (Transitive/Intransitive) ......55 1.6 Verbs: Linking .............................................57 1.7 Verb Phrases ................................................59 1.8 Adjectives ....................................................61 1.9 Adverbs........................................................63 1.10 Prepositions...

Words: 107004 - Pages: 429

Free Essay

Idioms and Expression

...Idioms and Expressions by David Holmes A method for learning and remembering idioms and expressions I wrote this model as a teaching device during the time I was working in Bangkok, Thailand, as a legal editor and language consultant, with one of the Big Four Legal and Tax companies, KPMG (during my afternoon job) after teaching at the university. When I had no legal documents to edit and no individual advising to do (which was quite frequently) I would sit at my desk, (like some old character out of a Charles Dickens’ novel) and prepare language materials to be used for helping professionals who had learned English as a second language—for even up to fifteen years in school—but who were still unable to follow a movie in English, understand the World News on TV, or converse in a colloquial style, because they’d never had a chance to hear and learn common, everyday expressions such as, “It’s a done deal!” or “Drop whatever you’re doing.” Because misunderstandings of such idioms and expressions frequently caused miscommunication between our management teams and foreign clients, I was asked to try to assist. I am happy to be able to share the materials that follow, such as they are, in the hope that they may be of some use and benefit to others. The simple teaching device I used was three-fold: 1. Make a note of an idiom/expression 2. Define and explain it in understandable words (including synonyms.) 3. Give at least three sample sentences to illustrate how the expression is used...

Words: 237262 - Pages: 950

Free Essay

Adventures

...The Adventures of Huckleberry Finn By Mark Twain Download free eBooks of classic literature, books and novels at Planet eBook. Subscribe to our free eBooks blog and email newsletter. NOTICE P ERSONS attempting to find a motive in this narra- tive will be prosecuted; persons attempting to find a moral in it will be banished; persons attempting to find a plot in it will be shot. BY ORDER OF THE AUTHOR, Per G.G., Chief of Ordnance.  The Adventures of Huckleberry Finn EXPLANATORY I N this book a number of dialects are used, to wit: the Missouri negro dialect; the extremest form of the backwoods Southwestern dialect; the ordinary ‘Pike County’ dialect; and four modified varieties of this last. The shadings have not been done in a hap- hazard fashion, or by guesswork; but painstakingly, and with the trustworthy guidance and support of personal familiarity with these several forms of speech. I make this explanation for the reason that without it many readers would suppose that all these characters were trying to talk alike and not succeeding. THE AUTHOR. Free eBooks at Planet eBook.com  The Adventures of Huckleberry Finn Scene: The Mississippi Valley Time: Forty to fifty years ago  The Adventures of Huckleberry Finn Chapter I Y OU don’t know about me without you have read a book by the name of The Adventures of Tom Sawyer; but that ain’t no matter. That book was made by Mr. Mark Twain, and he told...

Words: 115104 - Pages: 461

Free Essay

Student Interested in Nice Girl

...calendars based (E) that the North American Indians developed advanced full-year calendars based 2. A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes. (A) reduced the amount of phosphates that municipalities had been allowed to dump (B) reduced the phosphate amount that municipalities had been dumping (C) reduces the phosphate amount municipalities have been allowed to dump (D) reduced the amount of phosphates that municipalities are allowed to dump (E) reduces the amount of phosphates allowed for dumping by municipalities 3. A collection of 38 poems by Phillis Wheatley, a slave, was published in the 1770’s, the first book by a Black woman and it was only the second published by an American woman. (A) it was only the second published by an American woman (B) it was only the second that an American woman published (C) the second one only published by an American woman (D) the second one only that an American woman published (E) only the second published by an American woman 4. A common disability in test pilots is hearing impairment, a consequence of sitting too close to large jet engines for long periods of time. (A) a...

Words: 99709 - Pages: 399

Premium Essay

Microbiology Made Ridiculously Simple

...Preface A well-developed knowledge of clinical microbiology is critical for the practicing physician in any medical field. Bacteria, viruses, and protozoans have no respect for the distinction between ophthalmology, pediatrics, trauma surgery, or geriatric medicine. As a physician you will be faced daily with the concepts of microbial disease and antimicrobial therapy. Microbiology is one of the few courses where much of the "minutia" is regularly used by the practicing physician. This book attempts to facilitate the learning of microbiology by presenting the information in a clear and entertaining manner brimming with memory aids. Our approach has been to: 4) Create a conceptual, organized approach to the organisms studied so the student relies less on memory and more on logical pathophysiology. The text has been updated to include current information on rapidly developing topics, such as HIV and AIDS (vaccine efforts and all the new anti-HIV medications), Ebola virus, Hantavirus, E. coli outbreaks, Mad Cow Disease, and brand-new antimicrobial antibiotics. The mnemonics and cartoons in this book do not intend disrespect for any particular patient population or racial or ethnic group but are solely presented as memory devices to assist in the learning of a complex and important medical subject. We welcome suggestions for future editions. 1) Write in a conversational style for rapid assimilation. 2) Include numerous figures serving as "visual memory tools" and summary charts...

Words: 117402 - Pages: 470

Free Essay

The Origins and Development of the English Language (Textbook)

...THE ORIGINS AND DEVELOPMENT OF THE ENGLISH LANGUAGE This page intentionally left blank THE ORIGINS AND DEVELOPMENT OF THE ENGLISH LANGUAGE SIXTH EDITION ± ± John Algeo ± ± ± ± ± Based on the original work of ± ± ± ± ± Thomas Pyles Australia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United States The Origins and Development of the English Language: Sixth Edition John Algeo Publisher: Michael Rosenberg Development Editor: Joan Flaherty Assistant Editor: Megan Garvey Editorial Assistant: Rebekah Matthews Senior Media Editor: Cara Douglass-Graff Marketing Manager: Christina Shea Marketing Communications Manager: Beth Rodio Content Project Manager: Corinna Dibble Senior Art Director: Cate Rickard Barr Production Technology Analyst: Jamie MacLachlan Senior Print Buyer: Betsy Donaghey Rights Acquisitions Manager Text: Tim Sisler Production Service: Pre-Press PMG Rights Acquisitions Manager Image: Mandy Groszko Cover Designer: Susan Shapiro Cover Image: Kobal Collection Art Archive collection Dagli Orti Prayer with illuminated border, from c. 1480 Flemish manuscript Book of Hours of Philippe de Conrault, The Art Archive/ Bodleian Library Oxford © 2010, 2005 Wadsworth, Cengage Learning ALL RIGHTS RESERVED. No part of this work covered by the copyright herein may be reproduced, transmitted, stored, or used in any form or by any means graphic, electronic, or mechanical, including...

Words: 164520 - Pages: 659

Premium Essay

Health Promotion and Prevention

...NINTH EDITION Burton’s MICROBIOLOGY FOR THE HEALTH SCIENCES Paul G. Engelkirk, PhD, MT(ASCP), SM(AAM) Biomedical Educational Services (Biomed Ed) Belton, Texas Adjunct Faculty, Biology Department Temple College, Temple, TX Janet Duben-Engelkirk, EdD, MT(ASCP) Biomedical Educational Services (Biomed Ed) Belton, Texas Adjunct Faculty, Biotechnology Department Temple College, Temple, TX Acquisitions Editor: David B. Troy Product Manager: John Larkin Managing Editor: Laura S. Horowitz, Hearthside Publishing Services Marketing Manager: Allison Powell Designer: Steve Druding Compositor: Maryland Composition/Absolute Service Inc. Ninth Edition Copyright © 2011 Lippincott Williams & Wilkins, a Wolters Kluwer business © 2007 Lippincott Williams & Wilkins, © 2004 Lippincott Williams & Wilkins, © 2000 Lippincott Williams & Wilkins, © 1996 Lippincott-Raven, © 1992, 1988, 1983, 1979 JB Lippincott Co. 351 West Camden Street Baltimore, MD 21201 Printed in the People’s Republic of China All rights reserved. This book is protected by copyright. No part of this book may be reproduced or transmitted in any form or by any means, including as photocopies or scanned-in or other electronic copies, or utilized by any information storage and retrieval system without written permission from the copyright owner, except for brief quotations embodied in critical articles and reviews. Materials appearing in this book prepared by individuals as part of their official duties as U.S. government employees...

Words: 118758 - Pages: 476

Free Essay

500 Extraordinary Islands

...500 extraordinary islands G R E E N L A N D Beaufort Sea Baffin Bay vi Da i tra sS t a nm De it Stra rk Hudson Bay Gulf of Alaska Vancouver Portland C A N A D A Calgary Winnipeg Newfoundland Quebec Minneapolis UNITED STATES San Francisco Los Angeles San Diego Phoenix Dallas Ottawa Montreal ChicagoDetroitToronto Boston New York OF AMERICA Philadelphia Washington DC St. Louis Atlanta New Orleans Houston Monterrey NORTH AT L A N T I C OCEAN MEXICO Guadalajara Mexico City Gulf of Mexico Miami Havana CUBA GUATEMALA HONDURAS b e a n Sea EL SALVADOR NICARAGUA Managua BAHAMAS DOMINICAN REPUBLIC JAMAICA San Juan HAITI BELIZE C a r PUERTO RICO ib TRINIDAD & Caracas N TOBAGO A COSTA RICA IA M PANAMA VENEZUELA UYANRINA H GU C U G Medellín A PAC I F I C OCEAN Galapagos Islands COLOMBIA ECUADOR Bogotá Cali S FR EN Belém Recife Lima BR A Z I L PERU La Paz Brasélia Salvador Belo Horizonte Rio de Janeiro ~ Sao Paulo BOLIVIA PARAGUAY CHILE Cordoba Santiago Pôrto Alegre URUGUAY Montevideo Buenos Aires ARGENTINA FALKLAND/MALVINAS ISLANDS South Georgia extraordinary islands 1st Edition 500 By Julie Duchaine, Holly Hughes, Alexis Lipsitz Flippin, and Sylvie Murphy Contents Chapter 1 Beachcomber Islands . . . . . . . . . . . . . . . 1 Aquatic Playgrounds 2 Island Hopping the Turks & Caicos: Barefoot Luxury 12 Life’s a Beach 14 Unvarnished & Unspoiled 21 Sailing...

Words: 249855 - Pages: 1000