The Evolutionary Relationship Among Colonies of Columbian Ground Squirrels (Rodentia: Sciuridae)
Author: Donna Marie MacNeil
Publisher:
Published: 1986
Total Pages: 104
ISBN-13:
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Author: Donna Marie MacNeil
Publisher:
Published: 1986
Total Pages: 104
ISBN-13:
DOWNLOAD EBOOKAuthor: George A. Feldhamer
Publisher: JHU Press
Published: 2003-11-19
Total Pages: 1250
ISBN-13: 9780801874161
DOWNLOAD EBOOKTable of contents
Author: David J. Hafner
Publisher: IUCN
Published: 1998
Total Pages: 188
ISBN-13: 9782831704630
DOWNLOAD EBOOKThe first comprehensive treatment of North American rodents of conservation concern. This action plan summarizes the rodent fauna of North America and provides available information on every rodent taxon that has been considered to be of conservation concern by state, provincial and private conservation agencies and regional experts. It is hoped that the survey provided in this action plan will serve as a common ground for all these parties in drawing up conservation strategies for rodents.
Author: Luis A. Ebensperger
Publisher: Wiley-Blackwell
Published: 2016-03-22
Total Pages: 408
ISBN-13: 9781118846537
DOWNLOAD EBOOKFully integrative approach to the socibiology of caviomorph rodents -Brings together research on social systems with that on epigenetic, neurendocrine and developmental mechanisms of social behavior -Describes the social systems of many previously understudied caviomorph species, identifying the fitness costs and benefits of social living in current day populations as well as quantified evolutionary patterns or trends -Highlights potential parallels and differences with other animal models.
Author: Richard W. Thorington, Jr.
Publisher: JHU Press
Published: 2012-08-03
Total Pages: 470
ISBN-13: 1421404699
DOWNLOAD EBOOKSquirrels of the World, written by scientists with more than 100 years of collective experience studying these popular mammals, is the first comprehensive examination of all 285 species of squirrels worldwide. The authors reveal virtually every detail of the family Sciuridae, which includes ground squirrels, tree squirrels, flying squirrels, prairie dogs, and chipmunks. Each species—from the familiar gray squirrel of American backyards to the exotic and endangered woolly flying squirrel of Pakistan—is described in a detailed account that includes distinguishing characteristics, ecology, natural history, conservation status, and current threats to its existence. Squirrels of the World includes • stunning color photographs that document rare and unusual squirrels as well as common varieties• evolution, morphology, ecology, and conservation status• colorful range maps marking species distribution• images of the skull of each genus of squirrel• extensive references -- Lawrence Heaney, Curator and Head of the Division of Mammals, The Field Museum (Chicago)
Author: Xavier Bonnefoy
Publisher: World Health Organization
Published: 2008
Total Pages: 293
ISBN-13: 9289071885
DOWNLOAD EBOOKThe second half of the 20th century and the beginning of the 21st century witnessed important changes in ecology, climate and human behaviour that favoured the development of urban pests. Most alarmingly, urban planners now face the dramatic expansion of urban sprawl, in which city suburbs are growing into the natural habitats of ticks, rodents and other pests. Also, many city managers now erroneously assume that pest-borne diseases are relics of the past. All these changes make timely a new analysis of the direct and indirect effects of present-day urban pests on health. Such an analysis should lead to the development of strategies to manage them and reduce the risk of exposure. To this end, WHO invited international experts in various fields - pests, pest-related diseases and pest management - to provide evidence on which to base policies. These experts identified the public health risk posed by various pests and appropriate measures to prevent and control them. This book presents their conclusions and formulates policy options for all levels of decision-making to manage pests and pest-related diseases in the future. [Ed.]
Author: Alan F. Dixson
Publisher: Cambridge University Press
Published: 2021-06-03
Total Pages: 405
ISBN-13: 1108426182
DOWNLOAD EBOOKThe first detailed account of post-copulatory sexual selection and the evolution of reproduction in mammals.
Author: N.C. Stenseth
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 359
ISBN-13: 9401123381
DOWNLOAD EBOOK4.1.1 Demographic significance Confined populations grow more rapidly than populations from which dispersal is permitted (Lidicker, 1975; Krebs, 1979; Tamarin et at., 1984), and demography in island populations where dispersal is restricted differs greatly from nearby mainland populations (Lidicker, 1973; Tamarin, 1977, 1978; Gliwicz, 1980), clearly demonstrating the demographic signi ficance of dispersal. The prevalence of dispersal in rapidly expanding populations is held to be the best evidence for presaturation dispersal. Because dispersal reduces the growth rate of source populations, it is generally believed that emigration is not balanced by immigration, and that mortality of emigrants occurs as a result of movement into a 'sink' of unfavourable habitat. If such dispersal is age- or sex-biased, the demo graphy of the population is markedly affected, as a consequence of differ ences in mortality in the dispersive sex or age class. Habitat heterogeneity consequently underlies this interpretation of dispersal and its demographic consequences, although the spatial variability of environments is rarely assessed in dispersal studies.
Author: Kenneth B. Armitage
Publisher: Cambridge University Press
Published: 2014-07-24
Total Pages: 421
ISBN-13: 1107053943
DOWNLOAD EBOOK"Marmot Biology Sociality, Individual Fitness and Population Dynamics"--