Service Alert
Entretien du site web le 24 avril à 22h HAE
Le site web sera indisponible le 24 avril à 22h HAE pour 15 minutes en raison de travail d'entretien prévu.
Le site web sera indisponible le 24 avril à 22h HAE pour 15 minutes en raison de travail d'entretien prévu.
Articles 2681 à 2700 sur 3037
Par M. Gabriela Mángano, Luis A. Buatois. 2016
This volume addresses major evolutionary changes that took place during the Ediacaran and the Paleozoic. These include discussions on the…
nature of Ediacaran ecosystems, as well as the ichnologic signature of evolutionary radiations, such as the Cambrian explosion and the Great Ordovician biodiversification event, the invasion of the land, and the end-Permian mass extinction. This volume set provides innovative reviews of the major evolutionary events in the history of life from an ichnologic perspective. Because the long temporal range of trace fossils has been commonly emphasized, biogenic structures have been traditionally overlooked in macroevolution. However, comparisons of ichnofaunas through geologic time do reveal the changing ecology of organism-substrate interactions. The use of trace fossils in evolutionary paleoecology represents a new trend that is opening a window for our understanding of major evolutionary radiations and mass extinctions. Trace fossils provide crucial evidence for the recognition of spatial and temporal patterns and processes associated with paleoecologic breakthroughs.Par Assaf Marom, Erella Hovers. 2017
The aim of the book is to present original and though-provoking essays in human paleontology and prehistory, which are at…
the forefront of human evolutionary research, in honor of Professor Yoel Rak (a leading scholar in paleoanthropology). The volume presents a collection of original papers contributed by many of Yoel's friends and colleagues from all over the globe. Contributions from experts around the globe fall roughly into three broad categories: Reflections on some of the broad theoretical questions of evolution, and especially about human evolution; the early hominins, with special emphasis on Australopithecus afarensis and Paranthropus; and the Neanderthals, that contentious group of our closest extinct relatives. Within and across these categories, nearly every paper addresses combinations of methodological, analytical and theoretical questions that are pertinent to the whole human evolutionary time span. This book will appeal most to scholars and advanced students in paleoanthropology, human paleontology and prehistoric archaeology.Par Cong Pei-Yun, David J Siveter, Derek J Siveter, Hou Xian-Guang, Ma Xiao-Ya, Mark A Purnell, Mark Williams, Richard J Aldridge, Sarah E Gabbott. 2015
The celebrated lower Cambrian Chengjiang biota of Yunnan Province, China, represents one of the most significant ever paleontological discoveries. Deposits…
of ancient mudstone, about 520 million years old, have yielded a spectacular variety of exquisitely preserved fossils that record the early diversification of animal life. Since the discovery of the first specimens in 1984, many thousands of fossils have been collected, exceptionally preserving not just the shells and carapaces of the animals, but also their soft tissues in fine detail. This special preservation has produced fossils of rare beauty; they are also of outstanding scientific importance as sources of evidence about the origins of animal groups that have sustained global biodiversity to the present day. Much of the scientific documentation of the Chengjiang biota is in Chinese, and the first edition of this book was the first in English to provide fossil enthusiasts with a comprehensive overview of the fauna. The second edition has been fully updated and includes a new chapter on other exceptionally preserved fossils of Cambrian age, exciting new fossil finds from Chengjiang, and a phylogenetic framework for the biota. Displaying some 250 figures of marvelous specimens, this book presents to professional and amateur paleontologists, and all those fascinated by evolutionary biology, the aesthetic and scientific quality of the Chengjiang fossils.Par Megan Stine, Gregory Copeland. 2017
Travel back to the time when the mighty dinosaurs ruled the earth.The Age of Dinosaurs began about 250 million years…
ago. In the beginning they were quite small but over time they evolved into the varied and fascinating creatures that captivate our imaginations today. What we know about dinosaurs is evolving, too! We've learned that some dinosaurs were good parents, that dinosaurs could grow new teeth when old ones fell out, and that most dinosaurs walked on two legs. We've even discovered that birds are modern relatives of dinosaurs!From the Trade Paperback edition.Par Eudald Carbonell i Roura. 2011
The aim of this book is to provide a new insight on Neanderthal behaviour using the data recovered in level…
J of Romaní rockshelter (north-eastern Spain). Due to the sedimentary dynamics that formed the Romaní deposit, the occupation layers are characterized by a high temporal resolution, which makes it easier to interprete the archaeological data in behavioural terms. In addition, the different analytical domains (geoarchaeology, lithic technology, zooarchaeology, taphonomy, anthracology, palaeontology) are addressed from a spatial perspective that is basic to understand human behaviour, but also to evaluate the behavioural inferences in the framework of the archaeological formation processes.Par Cecilia Danysk. 1995
Farm workers were central to the development of Canada's prairie West. From 1878, when the first shipment of prairie grain…
went to international markets, to 1929, when the Great Depression signalled the end of the wheat boom, the role of hired hands changed dramatically. Prior to World War One, hired hands viewed themselves and were treated in the rural community as equals to their farmer employers. Many were farmers in training, informal apprentices who worked for wages so they could accumulate the capital and experience needed to secure their own free 160-acre parcels of land. In later years, as free lands were taken, hired hands increasingly faced the hkehhood of remaining waged labourers on the farms of others. They became agricultural proletarians. In this first full-length study of labour in Canadian prairie agriculture during the period of settlement and expansion, Cecilia Danysk examines the changing work and the growing rural community of the West through the eyes of the workers themselves. World War One was a catalyst in bringing into focus the conflicting nature of labour-capital relations and the divergent aims of workers and their employers. Yet, attempts at union organization were unsuccessful because most hired hands worked alone and because governments assisted farmers by stifling such attempts. The workers' greatest form of workplace control was to walk off one job and find another. Previously published by McClelland & StewartPar Naama Goren-Inbar, Lutz Kindler, Rivka Rabinovich, Sabine Gaudzinski-Windheuser. 2011
Multidisciplinary research on the Early-Middle Pleistocene site of Gesher Benot Ya'aqov has yielded abundant climatic, environmental, ecological and behavioral records.…
The 15 archaeological horizons form a sequence of Acheulian occupational episodes on the shore of the paleo-Lake Hula. These enable us to reconstruct numerous aspects of the survival and adaptation of ancient hominins, leading to a better understanding of their evolution and behavior. This book presents the faunal analyses of medium-sized and large mammals, providing taxonomic, taphonomic and actualistic data for the largest faunal assemblages. The study of modes of animal exploitation reveals valuable information on hominin behavior.Par Lukas Hottingerdavide Bassi. 2014
This book provides a representative assessment of the state of the art of research on Paleogene rotaliid larger foraminifera. It…
gives an overview of the current understanding of systematics of this group and, in particular, of its biostratigraphic importance and palaeobiogeography. The senior author of the work, late Professor Hottinger, a leading scientist in the field, both from a systematic and applied side, presents in this book his most recent advances. The foraminiferal family Rotaliidae is a traditional group used frequently which plays an important role for petroleum exploration in the biostratigraphy and palaeobiogeography of Paleogene shallow water deposits in the Middle East. This book aims to introduce rotaliid representatives as index fossils that can be recognized in random thin-sections of cemented rocks. The book is generously illustrated with an unprecedented degree of accuracy. The selection of taxa is restricted to forms having lived in the Paleocene and the Eocene, where their biostratigraphic significance is much higher than during later epochs. However, some additional rotaliid taxa, from the Late Cretaceous or that do not belong to the family Rotaliidae sensu stricto, are included in this book in order to demonstrate particular roots of rotaliid phylogenetic lineages in the previous community maturation cycle or to delimit the taxon Rotaliidae with more precision. This book can be considered as a reference in the field.Par Radu Iovita, Katsuhiro Sano. 2016
The objective of this volume is to showcase the contemporary state of research on recognizing and evaluating the performance of…
stone age weapons from a variety of viewpoints, including investigating their cognitive and evolutionary significance. New archaeological finds and experimental studies have helped to bring this subject back to the forefront of human origins research. In the last few years, investigations have expanded beyond examining the tools themselves to include studies of damage caused by projectile weapons on animal and hominin bones and skeletal asymmetries in ancient hominin populations. Only recently has there been a growing interest in controlled and replicative experiments. Through this book readers will be updated in the state of knowledge through a multidisciplinary scientific reconstruction of prehistoric weapon use and its implications. Contributions from expert authors are organized into three themed parts: recognizing weapon use (experimental and archaeological studies of impact traces), performance of weapon systems (factors influencing penetration depth etc. ), and behavioral and evolutionary ramifications (cognitive and ecological effects of using different weapons).Par Mark A. S. Mcmenamin. 2016
Using a series of case studies, the book demonstrates the power of dynamic analysis as applied to the fossil record.…
Written in an engaging and informative style, Dynamic Paleontology outlines the best application of quantitative and other tools to critical problems in the paleontological sciences including such topics as analysis of the Cambrian Explosion and the question regarding the presence of life on Mars. The book considers how we think about certain types questions and shows how we can refine our approach to analysis right from the beginning of any particular research effort. The analytical tools presented here will have wide application to other fields of knowledge; as such the book represents a major contribution to our deployment of modern scientific method.Par Julien Louys. 2011
The fossil record contains unique long-term insights into how ecosystems form and function which cannot be determined simply by examining…
modern systems. It also provides a record of endangered species through time, which allow us to make conservation decisions based on thousands to millions of years of information. The aim of this book is to demonstrate how palaeontological data has been or could be incorporated into ecological or conservation scientific studies. This book will be written by palaeontologists for modern ecologists and conservation scientists. Manuscripts will fall into one (or a combination) of four broad categories: case studies, review articles, practical considerations and future directions. This book will serve as both a 'how to guide' and provide the current state of knowledge for this type of research. It will highlight the unique and critical insights that can be gained by the inclusion of palaeontological data into modern ecological or conservation studies.Par Javier Echevarría, Susana E. Damborenea, Sonia Ros-Franch. 2012
Palaeobiogeography is a complex subject which processes information provided by both Biology and Earth Sciences. It is conceptually and philosophically…
equivalent to neobiogeography. Nevertheless, its methods are somewhat different, since it is limited by the incompleteness of the fossil record. On the other hand, it has direct access to the time dimension, a key ingredient of organic evolution. Mesozoic benthonic mollusks, and especially bivalves, have a great potential for palaeobiogeographical analysis due to their commonly good preservation, abundance, diversity and high dispersion potential at the larval stage. From a merely descriptive point of view, the analysis of their distribution shows latitudinal gradients and distributional patterns, both at regional and global scales, which are the basis for the recognition of biochoremas or palaeobiogeographical units of different ranks. Moving forward towards a causal palaeobiogeography, these organisms also provide interesting insight into particular biogeographical questions, such as bipolarity and its origin. The evolution in time of the recognized biochoremas can be discussed in relation to palaeoclimas and extinction events. Finally, some of the results obtained from the analysis of the distribution of past bivalve biotas were even used to propose and discuss the development of marine corridors and argue about the distribution of continents in the past.Par Rituparna Bose. 2012
Carbonate depositional systems in the Paleozoic geologic time represent fewer studies in paleoecological interactions than the siliciclastic systems. To evaluate…
this difference, the paleontology of the Middle Devonian Dundee Formation in Ohio has been explored. This geologic formation represents an important environment in the Michigan Basin of North America. Understanding biotic relationships such as mutualism, commensalism, parasitism and predation in an ecological community is important in unraveling the mystery of the fossil record. This research has contributed a large field collection which will be useful in documenting the fossil content of this unit for future workers. Rituparna Bose used new microscopic and imaging techniques in qualitatively analyzing the biotic interactions in small invertebrate shells. More importantly, she solved complex hypotheses in newly emerging problems in the field of geology and paleontology, such as the biodiversity crisis. Her study involved exploring the Devonian geology and paleontology of a geologic formation of a new unexplored quarry in Ohio, namely the Whitehouse Quarry in Lucas County, Ohio. She identified Devonian brachiopods to the genus level based on their morphology, and diagnosed paleoecological entities on host brachiopods and further measured episkeletobiont traces on hosts to understand the effects of environment and evolution on extinct species. Such studies have implications in predicting future biodiversity, ecosystem conservation and climate change. This research will also assist future workers to compare the ecology of brachiopod hosts of the Dundee Limestone with that of other Devonian brachiopods, from both carbonate and siliciclastic settings.Par Sandra Gordillo, María Sol Bayer, Gabriella Boretto, Melisa Charó. 2014
In view of the wide range of disciplines involved in Quaternary research, this book offers a one-stop resource for the…
Quaternary research community, since it reviews the latest techniques and provides an approach to how mollusk shell remains are used in the reconstruction of marine environments in southern South America. Written by specialists in the field, this monograph sets the scene for multidisciplinary research involving taphonomy, paleoecology, paleobiography, morphometry, shell mineralogy analysis and sclerochronology performed on mollusk assemblages and/or selected taxa, and offers a consistent picture of spatial and temporal environmental and climatic changes.Par Lori Chambers, The Osgoode Society. 1998
Lori Chambers' fascinating study explores the legal history of adoption in Ontario since the passage of the first statute in…
1921. This volume explores a wide range of themes and issues in the history of adoption including: the reasons for the creation of statutory adoption, the increasing voice of unmarried fathers in newborn adoption, the reasons for movement away from secrecy in adoption, the evolution of step-parent adoption, the adoption of Indigenous children, and the growth of international adoption. Unlike other works on adoption, Chambers focuses explicitly on statutes, statutory debates and the interpretation of statues in court. In doing so, she concludes that adoption is an inadequate response to child welfare and on its own cannot solve problems regarding child neglect and abuse. Rather, Chambers argues that in order to reform the area of adoption we must first acknowledge that it is built upon social inequalities within and between nations.Par Rituparna Bose. 2013
Fossil species appear to persist morphologically unchanged for long intervals of geologic time, punctuated by short bursts of rapid change…
as explained by the Ecological Evolutionary Units (EEUs). Here, morphological variation in Paleozoic atrypide morphology at the subfamily level (Atrypinae and Variatrypinae) from the Silurian and Devonian time intervals in the third Paleozoic EEU (~444-359 my) were investigated using relatively new techniques of quantitative modeling. The study explains how a group of closely related taxa in atrypide subfamilies exhibit morphological conservation through time in P3 EEU within the Eastern North America region.Par Christine Mander. 1985
In this comprehensive biography, Christine Mander depicts the life and times of Emily Murphy with a refreshing candor and vitality.…
A true Canadian heroine – pioneering feminism, writer (under the alias Janey Canuck), patriot, mother, anti-drug crusader, first woman magistrate of the British Empire and rebel – Emily Murphy defied conventional labels. To Hell with Women Magistrates, fulminated one court official on her appointment. Her greatest triumph came in 1929 when Lord Chancellor Sankey reversed the Canadian Supreme Court decision by ruling that women are persons under the constitution and therefore eligible for any political office. When Emily Murphy died in 1933, after a long battle with diabetes, her friend and fellow activist Nellie McClung remarked, Mrs. Murphy loved a fight and so far as I know, never turned her back on one.Par Lilian F Gates. 1988
This comprehensive book on William Lyon Mackenzie’s later life focuses first on the period 1838-1849, Mackenzie’s years in exile in…
the United States. It examines his contribution to the American political scene, including his role in writing the constitution of the State of New York. The book also chronicles Mackenzie’s life from 1849, when he was granted amnesty and returned to Canada, to his death in 1861. In this, the only comprehensive look at Mackenzie’s life, Lillian Gates offers a meticulous account of one of Canada’s liveliest nineteenth century politicians.Par Felix Walter, Robert De Roquebrune. 1964
Life in a Quebec manor-house at the turn of the century is colourfully described in this biography of his childhood…
by Robert de Roquebrune. Skilfully woven into the texture of reminiscences about his own growing up are absorbing accounts of the early history of Canada. Through his ancestors, whose careers and personalities live vividly in accounts preserved by the family, there is a strong feeling for the continuity of life and traditions from the France of Louis XIII to what was to become of the province of Quebec. This is the first time this classic of French Canada has been translated into English.Par H Neatby. 1963
This second volume of the official biography of Mackenzie King (the first, written by R. MacG. Dawson, was published in…
1958) covers the years 1924 to 1932. At the opening of this period, King was still an inexperienced and untried leader but the next few years were to test his qualities as he dealt with the concessions and compromises necessary in governing with an unstable majority and finally emerged the winner from the complicated chess games of parliamentary sessions. The Liberal success in the election of 1926 returned to office a Prime Minister with confidence in his own judgment and more inclined to hold firm to his own opinions against opposition from his colleagues or his party. After this election and the outcome of that in 1930, which handed over to the Conservatives the problems of the depression, the myth of King's political infallibility continued to grow. But a less able man would have been less lucky. As this book shows, King was a consummate party leader, with an unusual sensitivity to political danger and an unusual capacity to learn from his mistakes. In the years 1924 to 1932 a number of familiar Canadian issues had to be dealt with: freight rates on land and sea, the debate between a tariff for protection, the problems of the Maritime Provinces, the natural resources of the Prairie Provinces, old age pensions, the St. Lawrence Waterway, immigration. There were also other more striking incidents, which the author chronicles with verve and style: the customs scandal of 1926, the heady pleasures of the years of prosperity and the dismal frustrations of the years of depression, the election of 1930, the Beauharnois sensation. Throughout skilful use is made of the public records of these years, of the King papers, and the copious pages of King's own daily diary of his political problems, his conversations with colleagues and diplomats, his worries and frustrations over difficult decisions, his own aims and ideals. Over these years King developed and strengthened his convictions about the over-riding concern of all Canadian political leaders, national unity. Only a proper estimate of what was desirable, what was necessary, and what was impossible could guide in the working out of policies that would be tolerable by the whole of Canada, and it was, of course, King's firm belief and the guiding principle of his political life that the cause of national unity was best served by the cause of Liberalism, since that party above all represented the major sections or groups in Canada and alone could effect a satisfactory compromise among them. This book, brilliant and effective in conception and execution, is a study of political leadership in a divided nation, a nation which even in calmer times is proverbially difficult to govern. It is also a revealing and convincing study of a complex man whose drab public image concealed unsuspected eccentricities.