Punctuated Chaos In The Northeastern Mojave Desert
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Punctuated Chaos In The Northeastern Mojave Desert
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Author : Robert E. Reynolds
language : en
Publisher:
Release Date : 1996
Punctuated Chaos In The Northeastern Mojave Desert written by Robert E. Reynolds and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Geology categories.
Paleoenvironments And Paleohydrology Of The Mojave And Southern Great Basin Deserts
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Author : Yehouda Enzel
language : en
Publisher: Geological Society of America
Release Date : 2003
Paleoenvironments And Paleohydrology Of The Mojave And Southern Great Basin Deserts written by Yehouda Enzel and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Science categories.
The Eastern Mojave
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Author : National Association of Geoscience Teachers. Far Western Section. Spring Field Conference
language : en
Publisher:
Release Date : 2005
The Eastern Mojave written by National Association of Geoscience Teachers. Far Western Section. Spring Field Conference and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Geology categories.
Vertebrate Paleontology In Utah
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Author : David D. Gillette
language : en
Publisher: Utah Geological Survey
Release Date : 1999
Vertebrate Paleontology In Utah written by David D. Gillette and has been published by Utah Geological Survey this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Fossils categories.
The 52 papers in this vary in content from summaries or state-of-knowledge treatments, to detailed contributions that describe new species. Although the distinction is subtle, the title (Vertebrate Paleontology in Utah) indicates the science of paleontology in the state of Utah, rather than the even more ambitious intent if it were given the title “Vertebrate Paleontology of Utah” which would promise an encyclopedic treatment of the subject. The science of vertebrate paleontology in Utah is robust and intense. It has grown prodigiously in the past decade, and promises to continue to grow indefinitely. This research benefits everyone in the state, through Utah’s muse ums and educational institutions, which are the direct beneficiaries.
Examining Evolutionary Trends In Equus And Its Close Relatives From Five Continents
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Author : Raymond Louis Bernor
language : en
Publisher: Frontiers Media SA
Release Date : 2020-03-12
Examining Evolutionary Trends In Equus And Its Close Relatives From Five Continents written by Raymond Louis Bernor and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-12 with categories.
Evolution of the horse has been an often-cited primary example of evolution, as well as one of the classic and important stories in paleontology for over a century and a half, due to their rich fossil record across 5 continents: North America, South America, Europe, Asia and Africa. The recent horse has served a profound role in human ancestry, including agriculture, commerce, sport, transport, warfare, and in prehistory, for the subsistence of humans. Many studies have examined the evolution of the Equidae and chronicled the striking changes in skulls, dentition, limbs, and body size which have long been perceived to be a response to environmental shifts through time. Most comprehensive studies heretofore have: (1) focused on the “Great Transformation”- changes that occurred in the early Miocene, (2) involved tracking long-term diversity or paleoecological trends on a single continent or within a geographical locality, or (3) concentrated on the 3-toed hipparions. The Plio–Pleistocene evolutionary stage of horse evolution is punctuated by the great climatic fluctuations of the Quaternary beginning 2.6 Ma which influenced Equus evolution, biogeographic dispersion and adaptation on a nearly global scale. The evolutionary biology of Equus evolution across its entire range remains relatively poorly understood and often highly controversial. Some of this lack of understanding is due to assumptions that have arisen because of the relatively derived craniodental and postcranial anatomy of Equus and its close relatives which has seemed to imply that that these forms occupied relatively homogenous and narrow dietary and locomotor niches - notions that have not been adequately addressed and rigorously tested. Other challenges have revolved around teasing apart environmentally-driven adaptation versus phylogenetically defined morphological change. Geochronologic age control of localities, geographic provinces and continents has improved, but in no way is absolute and can be reexamined in our proposed volume. Temporal resolution for paleodietary, paleohabitat and paleoecological interpretations are also challenging for understanding the evolution of Equus. Our proposed volume attempts to assemble a group of experts who will address multiple dimensions of Equus’ evolution in time and space.
Biodiversity Response To Climate Change In The Middle Pleistocene
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Author : Anthony D. Barnosky
language : en
Publisher: Univ of California Press
Release Date : 2004-08-02
Biodiversity Response To Climate Change In The Middle Pleistocene written by Anthony D. Barnosky and has been published by Univ of California Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-08-02 with Nature categories.
Annotation Fossil finds from 10 years of research show the effects of climate change on North American mammals during the Pleistocene era, about one million to 400,000 years ago.
Great Basin And Sierra Nevada
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Author : David R. Lageson
language : en
Publisher: Geological Society of America
Release Date : 2000-01-01
Great Basin And Sierra Nevada written by David R. Lageson and has been published by Geological Society of America this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-01-01 with Science categories.
Fifty Years Of Death Valley Research
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Author : J.P. Calzia
language : en
Publisher:
Release Date : 2006-04-07
Fifty Years Of Death Valley Research written by J.P. Calzia and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-04-07 with Science categories.
Dr. Lauren A. Wright and Bennie W. Troxel are internationally recognized experts on the geology of Death Valley, California. In November 2002, they celebrated 50 years of cooperative research together. This special issue of Earth-Science Reviews commemorates that special occasion. Wright and Troxel's research in Death Valley covers a wide variety of subjects including stratigraphy, structure, regional tectonics, Quaternary geology, and mineral resources. Their diversity in research is reflected in this volume. The first two chapters add stratigraphic and 13C data to the constantly growing volume of literature on Neoproterozoic global glaciation and the Snowball Earth theory. The next seven chapters are nearly equally divided between late Paleozoic thrust faulting, middle Cenozoic extensional tectonics, and magmatism. The next four chapters describe the late Neogene to Holocene geology and geomorphology of Death Valley, research topics very dear to Wright and Troxel in the last 10 years. The last chapter describes the lead-zinc deposits of the southern basin and ranges. * Written by internationally recognized experts on the geology of Death Valley research * Covers a wide range of geological subjects, including stratigraphy, tectonics, mineral resources, glaciations, and the Snowball Earth theory * Documents Wright and Troxel's dedication, keen observational skills and ability to merge observations with theory
Beyond The War On Invasive Species
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Author : Tao Orion
language : en
Publisher: Chelsea Green Publishing
Release Date : 2015-06-17
Beyond The War On Invasive Species written by Tao Orion and has been published by Chelsea Green Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-17 with Nature categories.
Invasive species are everywhere, from forests and prairies to mountaintops and river mouths. Their rampant nature and sheer numbers appear to overtake fragile native species and forever change the ecosystems that they depend on. Concerns that invasive species represent significant threats to global biodiversity and ecological integrity permeate conversations from schoolrooms to board rooms, and concerned citizens grapple with how to rapidly and efficiently manage their populations. These worries have culminated in an ongoing “war on invasive species,” where the arsenal is stocked with bulldozers, chainsaws, and herbicides put to the task of their immediate eradication. In Hawaii, mangrove trees (Avicennia spp.) are sprayed with glyphosate and left to decompose on the sandy shorelines where they grow, and in Washington, helicopters apply the herbicide Imazapyr to smooth cordgrass (Spartina alterniflora) growing in estuaries. The “war on invasive species” is in full swing, but given the scope of such potentially dangerous and ecologically degrading eradication practices, it is necessary to question the very nature of the battle. Beyond the War on Invasive Species offers a much-needed alternative perspective on invasive species and the best practices for their management based on a holistic, permaculture-inspired framework. Utilizing the latest research and thinking on the changing nature of ecological systems, Beyond the War on Invasive Species closely examines the factors that are largely missing from the common conceptions of invasive species, including how the colliding effects of climate change, habitat destruction, and changes in land use and management contribute to their proliferation. There is more to the story of invasive species than is commonly conceived, and Beyond the War on Invasive Species offers ways of understanding their presence and ecosystem effects in order to make more ecologically responsible choices in land restoration and biodiversity conservation that address the root of the invasion phenomenon. The choices we make on a daily basis—the ways we procure food, shelter, water, medicine, and transportation—are the major drivers of contemporary changes in ecosystem structure and function; therefore, deep and long-lasting ecological restoration outcomes will come not just from eliminating invasive species, but through conscientious redesign of these production systems.
Jayhawk
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Author : Stephen Alan Bourque
language : en
Publisher:
Release Date : 2002
Jayhawk written by Stephen Alan Bourque and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Government publications categories.