Voles (Microtinae)
Voles (Microtinae)

Author: Gromov

Publisher: BRILL

Published: 2023-09-25

Total Pages: 751

ISBN-13: 9004628991

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This monograph deals with the subfamily of voles (Microtinae) -- the group of rodents which are of great practical importance as pests of agricultural crops as well as carriers and reservoirs of pathogens of several infectious diseases of animals and man. The introductory part describes the body structure and its adaptive peculiarities, geographical distribution, history of study of the group and its phylogeny. The taxonomic part presents characteristics of more than 130 extant as well as extinct species combined into 42 genera and 8 tribes. The monograph concludes with a special section (by I. Ya. Polyakov) containing detailed biological characteristics of individual groups of voles including the data on the structural peculiarities and population dynamics, economic importance and control measures under different natural conditions.

Nutrient Requirements of Laboratory Animals,
Nutrient Requirements of Laboratory Animals,

Author: National Research Council

Publisher: National Academies Press

Published: 1995-02-01

Total Pages: 188

ISBN-13: 0309051266

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In the years since the third edition of this indispensable reference was published, a great deal has been learned about the nutritional requirements of common laboratory species: rat, mouse, guinea pig, hamster, gerbil, and vole. The Fourth Revised Edition presents the current expert understanding of the lipid, carbohydrate, protein, mineral, vitamin, and other nutritional needs of these animals. The extensive use of tables provides easy access to a wealth of comprehensive data and resource information. The volume also provides an expanded background discussion of general dietary considerations. In addition to a more user-friendly organization, new features in this edition include: A significantly expanded section on dietary requirements for rats, reporting substantial new findings. A new section on nutrients that are not required but that may produce beneficial results. New information on growth and reproductive performance among the most commonly used strains of rats and mice and on several hamster species. An expanded discussion of diet formulation and preparationâ€"including sample diets of both purified and natural ingredients. New information on mineral deficiency and toxicity, including warning signs. This authoritative resource will be important to researchers, laboratory technicians, and manufacturers of laboratory animal feed.

Life Underground
Life Underground

Author: Eileen A. Lacey

Publisher: University of Chicago Press

Published: 2000-09

Total Pages: 470

ISBN-13: 9780226467283

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Many mammals like to dig in the dirt, but few call it home. Those that do, such as mole-rats, zokors, and tuco-tucos, have developed novel adaptations to their subterranean life, including bones and muscles modified for efficient digging and ways to "see" underground without using their eyes. These unusual traits, adopted independently by unrelated groups around the world, also make subterranean rodents fascinating subjects for biologists. Life Underground provides the first comprehensive review of the biology of subterranean rodents. Arranged by topic rather than by taxon to facilitate cross-species comparisons, chapters cover such subjects as morphology, physiology, social behavior, genetic variation, and evolutionary diversification. Two main questions run throughout the book. First, to what extent has subterranean life shaped the biology of these animals, leading to similar adaptations among otherwise dissimilar species? Second, how have the distinct evolutionary histories of these groups led to different solutions to the challenges posed by life underground?

Chemical Signals in Vertebrates 4
Chemical Signals in Vertebrates 4

Author: David Duvall

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 728

ISBN-13: 1461322359

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This volume reviews recent developments in our understanding of che~ ical signaling in vertebrates. After sections dealing with general princi ples and chemical aspects of vertebrate pheromones, it follows a taxonomic approach, progressing from fish to. mammals. The editors asked a diverse, international group of leading investigators, working on a wide array of vertebrate taxa and specific issues, to consider their efforts from compar ative, evolutionary, and ecological viewpoints. The relative number of manuscripts in each part does not necessarily reflect current intensity of research, since the editors invited speakers who together would provide a balanced and comprehensive overview, while avoiding duplication. Still, the part on mammals is the longest. Fourth in a series dating from 1977, this volume illuminates current trends and likely future developments in the field of chemical signaling in vertebrates. Going back even farther, the first chapter, a personal account of the past quarter century by Dr. Mykytowycz recalls the most important milestones, such as symposia, or the founding of societies and journals. He also credits those investigators who stand out by their seminal studies.

A Bronze Age Landscape in the Russian Steppes
A Bronze Age Landscape in the Russian Steppes

Author: David W. Anthony

Publisher: Cotsen Institute of Archaeology Press

Published: 2016-12-31

Total Pages: 537

ISBN-13: 1938770323

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The first English-language monograph that describes seasonal and permanent Late Bronze Age settlements in the Russian steppes, this is the final report of the Samara Valley Project, a US-Russian archaeological investigation conducted between 1995 and 2002. It explores the changing organization and subsistence resources of pastoral steppe economies from the Eneolithic (4500 BC) through the Late Bronze Age (1900-1200 BC) across a steppe-and-river valley landscape in the middle Volga region, with particular attention to the role of agriculture during the unusual episode of sedentary, settled pastoralism that spread across the Eurasian steppes with the Srubnaya and Andronovo cultures (1900-1200 BC). Three astonishing discoveries were made by the SVP archaeologists: agriculture played no role in the LBA diet across the region, a surprise given the settled residential pattern; a unique winter ritual was practiced at Krasnosamarskoe involving dog and wolf sacrifices, possibly related to male initiation ceremonies; and overlapping spheres of obligation, cooperation, and affiliation operated at different scales to integrate groups defined by politics, economics, and ritual behaviors.

Chromosome Structure and Function
Chromosome Structure and Function

Author: Rudi Appels

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 336

ISBN-13: 1461310377

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A Historical Perspective on the Study of Chromosome Structure and Function R. Appels Division of Plant Industry CSIRO P.O. Box 1600 A.C.T. AUSTRALIA "Modern physical science gives us no model to explain the re duplication of the gene-string in each cell generation, or to ex plain the production of effective quantities of specific enzymes or other agents by specific genes. The precise pairing and inter change of segments by homologous gene-strings at meiosis also suggest novel physical properties of this form of matter". Stadler (1954) The very strong influence of reductionism in the history of understanding chromosome structure and function is evident in the above quotation from Stadler's 1954 paper, "The gene". Earlyob servations on the constancy of the cytological appearance of chromo somes and their regular behaviour in cell division led to specula tion on their biological importance. As genetics became more refined in the early decades of the 20th century the genes-on-a string model of chromosomes developed and greater emphasis was placed on the further dissection of these structures. As a result, in the 1980's the reductionist approach is reaching a crest as extensive regions of the genetic material are being sequenced.