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Author: José Luis Prado
Publisher: Springer
ISBN: 3319558773
Category : Science
Languages : en
Pages : 157
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Book Description
This book provides an update on the phylogeny, systematics and ecology of horses in South America based on data provided over the past three decades. The contemporary South American mammalian communities were shaped by the emergence of the Isthmus of Panama and by the profound climatic oscillations during the Pleistocene. Horses were a conspicuous group of immigrant mammals from North America that arrived in South America during the Pleistocene. This group is represented by 2 genera, Hippidion and Equus, which include small species (Hippidion devillei, H. saldiasi, E. andium and E. insulatus) and large forms (Equus neogeus and H. principale). Both groups arrived in South America via 2 different routes. One model designed to explain this migration indicates that the small forms used the Andes corridor, while larger horses used the eastern route and arrived through some coastal areas. Molecular dating (ancient DNA) suggests that the South American horses separated from the North American taxa (caballines and the New World stilt-legged horse) after 3.6 - 3.2 Ma, consistent with the final formation of the Panamanian Isthmus. Recent studies of stable isotopes in these horses indicate an extensive range of 13C values cover closed woodlands to C4 grasslands. This plasticity agrees with the hypothesis that generalist species and open biome specialist species from North America indicate a positive migration through South America.
Author: José Luis Prado
Publisher: Springer
ISBN: 3319558773
Category : Science
Languages : en
Pages : 157
Get Book Here
Book Description
This book provides an update on the phylogeny, systematics and ecology of horses in South America based on data provided over the past three decades. The contemporary South American mammalian communities were shaped by the emergence of the Isthmus of Panama and by the profound climatic oscillations during the Pleistocene. Horses were a conspicuous group of immigrant mammals from North America that arrived in South America during the Pleistocene. This group is represented by 2 genera, Hippidion and Equus, which include small species (Hippidion devillei, H. saldiasi, E. andium and E. insulatus) and large forms (Equus neogeus and H. principale). Both groups arrived in South America via 2 different routes. One model designed to explain this migration indicates that the small forms used the Andes corridor, while larger horses used the eastern route and arrived through some coastal areas. Molecular dating (ancient DNA) suggests that the South American horses separated from the North American taxa (caballines and the New World stilt-legged horse) after 3.6 - 3.2 Ma, consistent with the final formation of the Panamanian Isthmus. Recent studies of stable isotopes in these horses indicate an extensive range of 13C values cover closed woodlands to C4 grasslands. This plasticity agrees with the hypothesis that generalist species and open biome specialist species from North America indicate a positive migration through South America.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 2130
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Book Description
Author: Rafael Lira
Publisher: Springer
ISBN: 1461466695
Category : Science
Languages : en
Pages : 562
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Book Description
This book reviews the history, current state of knowledge, and different research approaches and techniques of studies on interactions between humans and plants in an important area of agriculture and ongoing plant domestication: Mesoamerica. Leading scholars and key research groups in Mexico discuss essential topics as well as contributions from international research groups that have conducted studies on ethnobotany and domestication of plants in the region. Such a convocation will produce an interesting discussion about future investigation and conservation of regional human cultures, genetic resources, and cultural and ecological processes that are critical for global sustainability.
Author: Walter Leal Filho
Publisher: Springer
ISBN: 3319088378
Category : Science
Languages : en
Pages : 595
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Book Description
This book documents and disseminates experiences from a wide range of universities, across the five continents, which showcase how the principles of sustainable development may be incorporated as part of university programmes, and present transformatory projects and programmes, showing how sustainability can be implemented across disciplines. Sustainability in a higher education context is a fast growing field. Thousands of universities across the world have signed declarations or have committed themselves to integrate the principles of sustainable development in their activities: teaching, research and extension, and many more will follow.
Author: Bruce J. MacFadden
Publisher: Cambridge University Press
ISBN: 9780521477086
Category : Nature
Languages : en
Pages : 388
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Book Description
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: Juan Pro
Publisher:
ISBN: 9781845199821
Category : History
Languages : en
Pages : 0
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Book Description
Latin America has historically been a fertile ground where utopian projects, movements, and experiments could take root and thrive. Each of the thirteen authors in this collective volume address a particular case or specific aspect of Latin American utopianism from colonial times to the present day. The America that the Spanish and Portuguese discovered became, from the sixteenth century onwards, a space in which it was possible to imagine the widest variety of forms of human coexistence. Utopias in Latin America reconsiders the sense and understanding of utopias in various historical frames: the discovery of indigenous cultures and their natural environments; the foundation of new towns and cities in a vast colonial territory; the experimental communities of nineteenth-century utopian socialists and European exiled intellectuals; and the innovative formulae that attempts to get beyond twentieth-century capitalism.
Author: Anna Traveset
Publisher: CABI
ISBN: 1789242177
Category : Science
Languages : en
Pages : 481
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Book Description
There are many books on aspects of plant invasions, but none that focus on the key role of species interactions in mediating invasions. This book reviews exciting new findings and explores how new methods and tools are shedding new light on crucial processes in plant invasions. This book will be of interest to academics and students of ecology, researchers engaged in developing management solutions, scientific managers of natural ecosystems, and policy-makers.
Author: Silvina Montrul
Publisher: John Benjamins Publishing
ISBN: 9789027252975
Category : Language Arts & Disciplines
Languages : en
Pages : 436
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Book Description
This is the first book on the acquisition of Spanish that provides a state-of-the-art comprehensive overview of Spanish morphosyntactic development in monolingual and bilingual situations. Its content is organized around key grammatical themes that form the empirical base of research in generative grammar: nominal and verbal inflectional morphology, subject and object pronouns, complex structures involving movement (topicalizations, questions, relative clauses), and aspects of verb meaning that have consequences for syntax. The book argues that Universal Grammar constrains all instances of language acquisition and that there is a fundamental continuity between monolingual, bilingual, child and adult early grammatical systems. While stressing their similarities with respect to linguistic representations and processes, the book also considers important differences between these three acquisition situations with respect to the outcome of acquisition. It is also shown that many linguistic properties of Spanish are acquired earlier than in English and other languages. This book is a must read for those interested in the acquisition of Spanish from different theoretical perspectives as well as those working on the acquisition of other languages in different contexts.
Author: OECD
Publisher: OECD Publishing
ISBN: 9264279083
Category :
Languages : en
Pages : 258
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Book Description
This report examines how the two global mega-trends of population ageing and rising inequalities have been developing and interacting, both within and across generations.
Author: Sinclair Thomson
Publisher: Univ of Wisconsin Press
ISBN: 9780299177942
Category : History
Languages : en
Pages : 420
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Book Description
Previous studies of the insurrection have centered on the initial stage of the movement in Cuzco and tended to misrepresent the phase in La Paz as an atavistic "race war" against whites. By focusing on La Paz, Thomson shows that a process of struggle at the local level, combined with transformations within Aymara indigenous communities over a period of decades, contributed to the overall breakdown of Spanish colonial order and shaped the dynamics of the insurgency. As peasant commoners increasingly challenged their traditional ethnic lords (caciques), they upset the established apparatus of colonial rule in the Andean countryside, and they brought about a democratization of power relations within their communities. These local struggles converged with more ambitious designs for Indian government and self-determination, as the insurgents envisioned the possibility of Indian-white equality, Indian hegemony over other peoples in the Andes, or outright elimination of the colonial enemy. This experience in the late colonial period continued to shape peasant community organization and influence national political life in the Andes into the present.
