The Functional Morphology and Evolutionary Biology of Bears
Author : Tyson W. Sacco
Publisher :
Page : 286 pages
File Size : 24,21 MB
Release : 2001
Category :
ISBN :
Author : Tyson W. Sacco
Publisher :
Page : 286 pages
File Size : 24,21 MB
Release : 2001
Category :
ISBN :
Author : Vincenzo Penteriani
Publisher : Cambridge University Press
Page : 500 pages
File Size : 29,42 MB
Release : 2020-11-30
Category : Nature
ISBN : 9781108483520
Bears have fascinated people since ancient times. The relationship between bears and humans dates back thousands of years, during which time we have also competed with bears for shelter and food. In modern times, bears have come under pressure through encroachment on their habitats, climate change, and illegal trade in their body parts, including the Asian bile bear market. The IUCN lists six bears as vulnerable or endangered, and even the least concern species, such as the brown bear, are at risk of extirpation in certain countries. The poaching and international trade of these most threatened populations are prohibited, but still ongoing. Covering all bears species worldwide, this beautifully illustrated volume brings together the contributions of 200 international bear experts on the ecology, conservation status, and management of the Ursidae family. It reveals the fascinating long history of interactions between humans and bears and the threats affecting these charismatic species.
Author : Ralph O. Schill
Publisher : Springer
Page : 418 pages
File Size : 26,64 MB
Release : 2019-02-14
Category : Science
ISBN : 3319957023
Offering extensive information on tardigrades, this volume begins with a chapter on the history of tardigrades, from the first description by Goeze in 1773, until 1929, when the most comprehensive monographic approach by E. Marcus was published. Tardigrades’ organ systems, including their integument, body cavity, digestive, muscular, nervous and reproductive systems, as well as their overall external morphology, are summarized in the second chapter. Subsequent chapters present the current state of knowledge on tardigrade phylogeny, biogeography, paleontology, cytology and cytogenetics. In addition, the book provides insights into the ecology of tardigrades in marine, freshwater and terrestrial habitats. The reproduction, development and life cycles are summarized and the extraordinary environmental adaptations of encystment and cyclomorphosis, desiccation tolerance, freezing tolerance and radiation tolerance are discussed in detail. Further chapters provide an overview of key approaches in molecular tardigrade studies and describe techniques for sampling and sample processing. The book closes with a list of tardigrade taxa up to a sub-generic level, including the type species of each genus, the numbers of lower taxa in each taxon, and the main environments in which the taxa were found. Given its depth of coverage, the volume offers an invaluable resource for scientists from various disciplines who plan to research tardigrades, and for all others who are interested in these fascinating animals.
Author : Russell Tuttle
Publisher : Routledge
Page : 509 pages
File Size : 21,25 MB
Release : 2017-10-23
Category : Science
ISBN : 135148253X
These original contributions on the evolution of primates and the techniques for studying the subject cover an enormous range of material and incorporate the work of specialists from many different fields, showing the necessity of a multidisciplinary approach to problems of primate morphology and phylogeny. Collectively, they demonstrate the concerns and methods of leading contemporary workers in this and related fields. Each contributor shows his way of attacking fundamental problems of evolutionary primatology.
Author : Bruce J. MacFadden
Publisher : Cambridge University Press
Page : 388 pages
File Size : 35,37 MB
Release : 1994-06-24
Category : Nature
ISBN : 9780521477086
The horse has frequently been used as a classic example of long-term evolution because it possesses an extensive fossil record. This book synthesizes the large body of data and research relevant to an understanding of fossil horses from perspectives such as biology, geology, paleontology.
Author :
Publisher :
Page : 776 pages
File Size : 28,59 MB
Release : 2001
Category : Dissertation abstracts
ISBN :
Author : Brian K. Hall
Publisher : Gulf Professional Publishing
Page : 466 pages
File Size : 39,32 MB
Release : 1999-01-12
Category : Nature
ISBN : 9780127309354
A classic problem in evolutionary biology is the origin of larvae - how and why did they occur? Indeed, it has often been suggested that many entirely unique body plans first originated as retained larvae of ancestral organisms. But what of the larvae themselves? What developmental and evolutionary forces shape and constrain them? These questions and others are dealt with by this international team of leading zoologists and developmental biologists. Intended to contribute to a continuing dialectic, this book presents diverse opinions as well as manifold conclusions. Certain to challenge and intrique, The Origin and Evolution of Larval Forms should be a part of the library of every evolutionary and developmental biologist interested in larvae and their significance.
Author :
Publisher :
Page : 924 pages
File Size : 31,94 MB
Release : 2007
Category : Dissertations, Academic
ISBN :
Author : Annalisa Berta
Publisher : Elsevier
Page : 575 pages
File Size : 21,54 MB
Release : 2005-12-14
Category : Science
ISBN : 0080489346
Berta and Sumich have succeeded yet again in creating superior marine reading! This book is a succinct yet comprehensive text devoted to the systematics, evolution, morphology, ecology, physiology, and behavior of marine mammals. The first edition, considered the leading text in the field, is required reading for all marine biologists concerned with marine mammals. Revisions include updates of citations, expansion of nearly every chapter and full color photographs. This title continues the tradition by fully expanding and updating nearly all chapters. - Comprehensive, up-to-date coverage of the biology of all marine mammals - Provides a phylogenetic framework that integrates phylogeny with behavior and ecology - Features chapter summaries, further readings, an appendix, glossary and an extensive bibliography - Exciting new color photographs and additional distribution maps
Author : Max K. Hecht
Publisher : Springer Science & Business Media
Page : 469 pages
File Size : 23,54 MB
Release : 2012-12-06
Category : Science
ISBN : 146152878X
After volume 33, this book series was replaced by the journal "Evolutionary Biology." Please visit www.springer.com/11692 for further information. The current volume includes articles on the conceptual relationship of ontogeny, phylogeny, and classification; correlation studies of spatial patterns of genetic variation; and the evolution of flower display and reward.