Download or read book Feeding Management of Giant Anteater Myrmecophaga Tridactyla and Tamandua Tamandua Tetradactyla in the EAZA Ex situ Programme written by Johanna Steinecker-Quast and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Morphology of the Genital Organs of Male and Female Giant Anteaters Myrmecophaga Tridactyla and Southern Tamanduas Tamandua Tetradactyla written by Lilja Fromme and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die beiden Ameisenbärarten, der Große Ameisenbär (Myrmecophaga tridactyla) und der Südliche Tamandua (Tamandua tetradactyla) gehören zu den Xenarthra, einer der vier Überordnungen der Plazentasäugetiere. Xenarthra umfassen neben Ameisenbären auch Faultiere und Gürteltiere und nehmen eine basale Position im Stammbaum der Plazentatiere ein. Der Große Ameisenbär wird, wie auch andere Arten der Xenarthra, von der International Union for Conservation of Nature (IUCN) als gefährdet eingestuft. Trotzdem wurde bisher wenig zu Ameisenbären und deren Reproduktion geforscht. Das Ziel dieser Arbeit war es, Grundlagendaten zur Morphologie der Reproduktionsorgane der Großen Ameisenbären und Südlichen Tamanduas zu sammeln, um eine Referenz für weiterführende Studien zu Reproduktionsparametern zu bieten. Zu diesem Zweck wurden im Rahmen eines Monitorings von Straßentotfunden Sektionen von männlichen und weiblichen Großen Ameisenbären und Südlichen Tamanduas in Brasilien durchgeführt und die Reproduktionsorgane wurden makro- und mikroskopisch analysiert. Das zweite und vierte Kapitel der vorliegenden Arbeit zeigen, dass die generelle Morphologie der Reproduktionsorgane von männlichen und weiblichen Großen Ameisenbären mit Merkmalen beim Südlichen Tamandua übereinstimmt. Beide Arten zeigen morphologische Besonderheiten, die bei fast allen Xenarthra zu beobachten sind, wie intraabdominale Hoden oder einen unpaaren Uterus. Männliche Große Ameisenbären besitzen zudem ein gut entwickeltes Überbleibsel des Müllerschen Ganges mit histologischen Charakteristika von Vagina, Uterus und Uterushörnern und vermutlich sekretorischer Funktion. Diese Struktur hat beim männlichen Südlichen Tamandua nur eine sehr rudimentäre Ausbildung. Dagegen zeigen sowohl weibliche Große Ameisenbären als auch weibliche Südliche Tamanduas persistierende Wolffsche Gänge, die Merkmale von Nebenhoden und Samenleiter aufweisen und in dieser Arbeit zum ersten Mal beschrieben wurden. Während der normalen Geschlechtsentwicklung bei Plazentatieren bilden sich die Müllerschen Gänge beim männlichen Tier und die Wolffschen Gänge beim weiblichen Tier zurück. Die Persistenz von gut ausgebildeten Geschlechtsgängen des anderen Geschlechts bei Ameisenbären ist deshalb ein außergewöhnliches Merkmal. Das dritte Kapitel dieser Arbeit fokussiert sich auf die Spermatogenese beim Großen Ameisenbären. Die Charakteristika der Keimzellpopulationen zeigten Ähnlichkeiten zu anderen Plazentatieren, wie auch Xenarthra, und insgesamt konnten acht Stadien des Keimepithelzyklus definiert werden. Im vierten Kapitel wird ein Fallbericht eines weiblichen Südlichen Tamanduas vorgestellt, der während des Totfundmonitorings seziert wurde. Das Tier zeigte einen Filarienbefall in den Ovarien und Ähnlichkeiten zu zwei Fallberichten beim Südlichen Tamandua, die fast 100 Jahre zurückliegen. Dadurch wird die Frage aufgeworfen, ob die Art besonders empfänglich für einen Filarienbefall in den Ovarien ist und ob die Infektion den Reproduktionserfolg betroffener Individuen beeinträchtigen kann. Die Daten, die in dieser Studie gesammelt wurden, können als Referenz für zukünftige Forschungsarbeiten zu Charakteristika wie sexuelle Reife, Reproduktionsstatus, Saisonalität und Reproduktionsgesundheit dienen. Außerdem können sie Orientierung bieten für die Anwendung von diagnostischen Methoden oder Techniken assistierter Reproduktion wie exfoliative Zytologie zur Östrusdetektion oder Spermasammlung. Ein weitergehendes Studium der Ätiologie der persistierenden Geschlechtsgänge bei Ameisenbären kann auch Erkenntnisse über die Geschlechtsdifferenzierung bei Plazentatieren im Allgemeinen liefern. Während die morphologischen Besonderheiten bei Ameisenbären, die in dieser Arbeit beschrieben wurden, mit Sicherheit zur Eigentümlichkeit der Arten beitragen, kann ihre wissenschaftliche Beschreibung auch dazu dienen, den weitverbreiteten Aberglauben über das obskure Geschlecht der Ameisenbären zu entmystifizieren und dadurch den Schutz der Tierarten voranzutreiben.
Download or read book The Biology of the Xenarthra written by Sergio F. Vizcaíno and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Xenarthra are an order of the mammals consisting of the armadillos, anteaters, and sloths. The Biology of the Xenarthra is the first authoratative study of the Xenarthra in a generation. The volume features an impressive group of international scholars who explore the current biology and ecological status of these mammals in each of the geographic regions they inhabit. Many of these populations reside in developing countries, and before now, information on these species has been scarce. Topics cover a wide array of issues including genetics, physiology, behavior, ecology, and conservation. Discussions range from paleontological perspectives on xenarthran evolution to both lab and field-based studies of living species. Contemporary research in areas such as genome sequencing and leprosy in armadillos is also included.
Download or read book Zoo Animal Nutrition written by Joeke Nijboer and published by EAZA Nutrition Group. This book was released on 2000 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ethology of Predation written by E. Curio and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predation is an ecological factor of almost universal importance for the biol ogist who aims at an understanding of the habits and structures of animals. Despite its pervasive nature opinions differ as to what predation really is. So far it has been defined only in negative terms; it is thought not to be par asitism, the other great process by which one organism harms another, nor filter-feeding, carrion-eating, or browsing. Accordingly, one could define predation as a process by which an animal spends some effort to locate a live prey and, in addition, spends another effort to mutilate or kill it. Ac cording to this usage of the word a nudibranch, for example, that feeds on hydroids would be a predator inasmuch as it needs some time to locate col onies of its prey which, after being located, scarcely demand more than eating, which differs little from browsing. From the definition just proposed consumption of the prey following its capture has been intentionally omit ted. Indeed, an animal may be disposed of without being eaten. Hence the biological significance of predation may be more than to maintain nutrition al homeostasis. In fact, predation may have something in common with the more direct forms of competition, a facet that will be only cursorily touched upon in this book.
Download or read book The Mammals of Suriname written by A. M. Husson and published by Brill Archive. This book was released on 1978 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology Medicine and Surgery of South American Wild Animals written by Murray Fowler and published by John Wiley & Sons. This book was released on 2008-08-06 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology, Medicine and Surgery of South American Wild Animals examines the medicine and treatment of animals specific to South America. It discusses topics dealing with diseases and biology topics. In addition, the animals studied are broken down into family and genus, using both English and Spanish names. The book is liberally illustrated and contains references for further reading as well as the contributions of regional experts on the animals covered.
Download or read book Mammals of Mexico written by Gerardo Ceballos and published by JHU Press. This book was released on 2014-01-15 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most comprehensive reference on Mexico's diverse mammalian fauna. Mammals of Mexico is the first reference book in English on the more than 500 types of mammal species found in the diverse Mexican habitats, which range from the Sonoran Desert to the Chiapas cloud forests. The authoritative species accounts are written by a Who’s Who of experts compiled by famed mammalogist and conservationist Gerardo Ceballos. Ten years in the making, Mammals of Mexico covers everything from obscure rodents to whales, bats, primates, and wolves. It is thoroughly illustrated with color photographs and meticulous artistic renderings, as well as range maps for each species. Introductory chapters discuss biogeography, conservation, and evolution. The final section of the book illustrates the skulls, jaws, and tracks of Mexico’s mammals. This unparalleled collection of scientific information on, and photographs of, Mexican wildlife belongs on the shelf of every mammalogist, in public and academic libraries, and in the hands of anyone curious about Mexico and its wildlife.
Download or read book Biology Medicine and Surgery of Elephants written by Murray Fowler and published by John Wiley & Sons. This book was released on 2008-01-09 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elephants are possibly the most well-known members of the animal kingdom. The enormous size, unusual anatomy, and longevity of elephants have fascinated humans for millenia. Biology, Medicine, and Surgery of Elephants serves as a comprehensive text on elephant medicine and surgery. Based on the expertise of 36 scientists and clinical veterinarians, this volume covers biology, husbandry, veterinary medicine and surgery of the elephant as known today. Written by the foremost experts in the field Comprehensively covers both Asian and African elephants Complete with taxonomy, behavioral, geographical and systemic information Well-illustrated and organized for easy reference
Download or read book Ahd Dict New College Edn Plain Edge written by American Heritage Dictionary and published by Houghton Mifflin. This book was released on 1975-02 with total page 1550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains over 155,000 entries, with current meanings given first. Includes notes on usage, quoted and original examples, and several thousand illustrations.
Download or read book Handbook of Wildlife Chemical Immobilization 6th Edition written by Jon Arnemo and published by . This book was released on 2023-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2023 6th edition. 496 four-color pages. Reinforced, fold-flat flexbound cover. Drug doses for 530 species. The Handbook covers legalities of drug possession and use; types of drugs used for animal capture; equipment used for animal capture; animal capture procedures and techniques; animal medical treatment; and human emergency medicine, supported by over 2,800 references.
Download or read book The Morphology of Xenarthrous Vertebrae Mammalia written by Timothy J 1966- Gaudin and published by Palala Press. This book was released on 2015-09-06 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Housing Governance in a Time of Financialization written by Roman Zwicky and published by . This book was released on 2021 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the financialization of housing has become a major challenge to many cities across the globe, not the least because it tends to favor the interests of global finance over the needs of residents. Based on three case studies in the city regions of Zurich, Birmingham and Lyon, the present investigation analyzes the interplay of housing governance and policies over the past 20 years against the backdrop of the financialization of housing.
Download or read book Social Behavior and Communication written by P. Marler and published by Springer. This book was released on 2013-07-13 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Other books in this series focus on behavior at the individual level, approached from the viewpoints of biochemistry, anatomy, physiology, and psychology. In this volume we show how the functioning nervous systems of interacting individuals are coordinated, with the ultimate creation of complex social structures. The intri cacies of an individual's nervous system have been subject to intense inquiry, and research at the chemical, cellular, and organ levels has made remarkable progress. Work at the social level has been conducted somewhat independently, by way of behavioral phenomena and communicative interactions. With the emergence of a large body of information from neurobiology, the beginnings of an integrated approach are possible. New data on social functions are presented in the chapters to follow, and the forward-looking reader may wish to reflect on how they clarify understanding of interactions between two or more independent nervous systems. The outcome is harmonious social structure and improvement in the inclusive fitness of group-living individuals. We believe that there is in prospect a new way of looking at social function that will ultimately increase our understanding of the highest and most complex levels of neurobiology. The modern approach to the study of social behavior involves more than the recording of interactions between animals. Each individual brings to the process of social interaction the implications of its prior genetic and experiential history.
Download or read book Authority and Authorship in Medieval and Seventeenth Century Women s Visionary Writings written by Deborah Frick and published by transcript Verlag. This book was released on 2021-05-31 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: In medieval and early modern times, female visionary writers used the mode of prophecy to voice their concerns and ideas, against the backdrop of cultural restrictions and negative stereotypes. In this book, Deborah Frick analyses medieval visionary writings by Julian of Norwich and Margery Kempe in comparison to seventeenth-century visionary writings by authors such as Anna Trapnel, Mary Carey, Anne Wentworth and Katherine Chidley, in order to investigate how these women authorised themselves in their writings and what topoi they use to find a voice and place of their own. This comparison, furthermore, and the strikingly similar topoi that are used by the female visionaries not only allows to question and examine topics such as authority, authorship, images of voice and body; it also breaks down preconceived and artificial boundaries and definitions.
Download or read book Mammals of Panama with Thirty nine Plates written by Edward Alphonso Goldman and published by . This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Wildlife Chemical Immobilization 5th Edition written by Terry Kreeger and published by . This book was released on 2018-02-13 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2018 5th edition. 472 four-color pages. New reinforced, fold-flat flexbound cover. Price unchanged for over ten years. Drug doses for over 500 species. The Handbook covers legalities of drug possession and use; types of drugs used for animal capture; equipment used for animal capture; animal capture procedures and techniques; animal medical treatment; and human emergency medicine, supported by over 2,750 references.
