Revision Of Poa L Poaceae Pooideae Poeae Poinae In Mexico New Records Re Evaluation Of P Ruprechtii And Two New Species P Palmeri And P Wendtii

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Revision of Poa L. (Poaceae, Pooideae, Poeae, Poinae) in Mexico: new records, re-evaluation of P. ruprechtii, and two new species, P. palmeri and P. wendtii

Author : Robert John Soreng
Publisher : PenSoft Publishers LTD
ISBN 13 : 9546426466
Total Pages : 112 pages
Book Rating : 4.5/5 (464 download)

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Book Synopsis Revision of Poa L. (Poaceae, Pooideae, Poeae, Poinae) in Mexico: new records, re-evaluation of P. ruprechtii, and two new species, P. palmeri and P. wendtii by : Robert John Soreng

Download or read book Revision of Poa L. (Poaceae, Pooideae, Poeae, Poinae) in Mexico: new records, re-evaluation of P. ruprechtii, and two new species, P. palmeri and P. wendtii written by Robert John Soreng and published by PenSoft Publishers LTD. This book was released on 2012-08-06 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Who knew there were so many bluegrasses in Mexico?ÿ This monographic study of the Mexican species of the large (500+ species), taxonomically complex, world-wide genus Poa, by Smithsonian researchers Robert J. Soreng and Paulÿ M. Peterson, revealed there were 23, including 2 new to science, and 2 previously unknown there.ÿ Two other narrow endemics were described only in the last 10 years. The Mexican species occur mainly in the mountains, and especially in the alpine.ÿ Most of the species occurrences in Mexico presumably reflect establishment during cooler climates of past glacial cycles. Today, several are living on the edge of extinction. Eleven natives are globally rare, or rare in Mexico. Breeding system diversity is high: asexual seed production is obligate in several and facultative in some others, one is dioecious, and some are gynomonoecious, several are perfect-flowered.ÿ At least 3 arrived by long-distance-dispersal from South America?s Andes; 2 aided by asexual reproduction, 1 by the capacity to self-fertilize.

California Grasslands

Author : Mark R. Stromberg
Publisher : Univ of California Press
ISBN 13 : 9780520252202
Total Pages : 416 pages
Book Rating : 4.2/5 (522 download)

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Book Synopsis California Grasslands by : Mark R. Stromberg

Download or read book California Grasslands written by Mark R. Stromberg and published by Univ of California Press. This book was released on 2007-12-03 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This highly synthetic and scholarly work brings together new and important scientific contributions by leading experts on a rich diversity of topics concerning the history, ecology, and conservation of California's endangered grasslands. The editors and authors have succeeded admirably in drawing from a great wealth of recent research to produce a widely accessible and compelling, state-of-the-art treatment of this fascinating subject. Anyone interested in Californian biodiversity or grassland ecosystems in general will find this book to be an invaluable resource and a major inspiration for further research, management, and restoration efforts."—Bruce G. Baldwin, W. L. Jepson Professor and Curator, UC Berkeley "Grasses and grasslands are among the most important elements of the California landscape. This is their book, embodying the kind of integrated view needed for all ecological communities in California. Approaches ranging across an incredibly broad spectrum -- paleontology and human history; basic science and practical management techniques; systematics, community ecology, physiology, and genetics; physical factors such as water, soil nutrients, atmospherics, and fire; biological factors such as competition, symbiosis, and grazing -- are nicely tied together due to careful editorial work. This is an indispensable reference for everyone interested in the California environment."—Brent Mishler, Director of the University & Jepson Herbaria and Professor of Integrative Biology, UC Berkeley "The structure and function of California grasslands have intrigued ecologists for decades. The editors of this volume have assembled a comprehensive set of reviews by a group of outstanding authors on the natural history, structure, management, and restoration of this economically and ecologically important ecosystem."—Scott L. Collins, Professor of Biology, University of New Mexico

Grasses: Systematics and Evolution

Author : SWL Jacobs
Publisher : CSIRO PUBLISHING
ISBN 13 : 064309900X
Total Pages : 392 pages
Book Rating : 4.6/5 (43 download)

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Book Synopsis Grasses: Systematics and Evolution by : SWL Jacobs

Download or read book Grasses: Systematics and Evolution written by SWL Jacobs and published by CSIRO PUBLISHING. This book was released on 2000-05-19 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grasses: Systematics and Evolution is a selection of the very best papers from the Proceedings of the Third International Symposium on Grass Systematics and Evolution held in Sydney, Australia in 1998. The papers represent some of the leading work from around the world on grasses and include reviews and current research into the comparative biology and classification. All 41 papers have been peer-reviewed and edited.

Catalogue of New World Grasses (Poaceae)

Author : Emmet J. Judziewicz
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (183 download)

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Book Synopsis Catalogue of New World Grasses (Poaceae) by : Emmet J. Judziewicz

Download or read book Catalogue of New World Grasses (Poaceae) written by Emmet J. Judziewicz and published by . This book was released on 2000 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Grasses of the Soviet Union

Author : Nikolaĭ Nikolaevich T︠S︡velev
Publisher :
ISBN 13 :
Total Pages : 596 pages
Book Rating : 4.X/5 (1 download)

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Book Synopsis Grasses of the Soviet Union by : Nikolaĭ Nikolaevich T︠S︡velev

Download or read book Grasses of the Soviet Union written by Nikolaĭ Nikolaevich T︠S︡velev and published by . This book was released on 1983 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Features of Afroalpine Plant Ecology

Author : Olov Hedberg
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Features of Afroalpine Plant Ecology by : Olov Hedberg

Download or read book Features of Afroalpine Plant Ecology written by Olov Hedberg and published by . This book was released on 1964 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Plant Life of Palestine

Author : Michael Zohary
Publisher :
ISBN 13 : 9781258825348
Total Pages : 270 pages
Book Rating : 4.8/5 (253 download)

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Book Synopsis Plant Life of Palestine by : Michael Zohary

Download or read book Plant Life of Palestine written by Michael Zohary and published by . This book was released on 2013-10 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chronica Botanica New Series Of Plant Science Books, No. 33.

Arctic and Alpine Biodiversity: Patterns, Causes and Ecosystem Consequences

Author : F.Stuart III Chapin
Publisher : Springer
ISBN 13 : 9783642789687
Total Pages : 0 pages
Book Rating : 4.7/5 (896 download)

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Book Synopsis Arctic and Alpine Biodiversity: Patterns, Causes and Ecosystem Consequences by : F.Stuart III Chapin

Download or read book Arctic and Alpine Biodiversity: Patterns, Causes and Ecosystem Consequences written by F.Stuart III Chapin and published by Springer. This book was released on 2012-02-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: As human populations expand and have increasing access to technol ogy, two general environmental concerns have arisen. First, human pop ulations are having increasing impact on the earth system, such that we are altering the biospheric carbon pools, basic processes of elemental cycling and the climate system of the earth. Because of time lags and feedbacks, these processes are not easily reversed. These alterations are occurring now more rapidly than at any time in the last several million years. Secondly, human activities are causing changes in the earth's biota that lead to species extinctions at a rate and magnitude rivaling those of past geologic extinction events. Although environmental change is potentially reversible at some time scales, the loss of species is irrevo cable. Changes in diversity at other scales are also cause for concern. Habitat fragmentation and declines in population sizes alter genetic di versity. Loss or introduction of new functional groups, such as nitro gen fixers or rodents onto islands can strongly alter ecosystem processes. Changes in landscape diversity through habitat modification and frag mentation alter the nature of processes within and among vegetation patches. Although both ecological changes altering the earth system and the loss of biotic diversity have been major sources of concern in recent years, these concerns have been largely independent, with little concern for the environmental causes the ecosystem consequences of changes in biodiversity. These two processes are clearly interrelated. Changes in ecological systems cause changes in diversity.

Tropical Alpine Environments

Author : Philip W. Rundel
Publisher : Cambridge University Press
ISBN 13 : 052142089X
Total Pages : 400 pages
Book Rating : 4.5/5 (214 download)

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Book Synopsis Tropical Alpine Environments by : Philip W. Rundel

Download or read book Tropical Alpine Environments written by Philip W. Rundel and published by Cambridge University Press. This book was released on 1994-09 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants growing in tropical alpine environments (at altitudes above the closed canopy forest and below the limit of plant life) have evolved distinct forms to cope with a hostile environment characterized by cold, drought and fire. Unlike temperate alpine environments, where there are distinct seasons of favourable and unfavourable conditions for growth, tropical alpine habitats present summer conditions every day and winter conditions every night. Using examples from all over the tropics, this fascinating account reviews, for the first time, the unique form and functional relationships of tropical alpine plants examining both their physiological ecology and population biology. It will appeal to anyone interested in tropical vegetation and plant physiological adaptations to hostile environment, as well as to researchers in biogeography and ecology.

Grasses in California

Author : Beecher Crampton
Publisher : Univ of California Press
ISBN 13 : 9780520025073
Total Pages : 196 pages
Book Rating : 4.0/5 (25 download)

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Book Synopsis Grasses in California by : Beecher Crampton

Download or read book Grasses in California written by Beecher Crampton and published by Univ of California Press. This book was released on 1974 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grasses have been extremely important in California, with its rolling grass-covered hills and the green-to-gold seasonal cycle of many native grasses. This convenient pocket guide surveys the range and provides identification keys for the common introduced and native grasses.

Flora Capensis

Author : William Henry Harvey
Publisher :
ISBN 13 :
Total Pages : 662 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Flora Capensis by : William Henry Harvey

Download or read book Flora Capensis written by William Henry Harvey and published by . This book was released on 1925 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Flora of Micronesia

Author : Edward E. Terrell
Publisher :
ISBN 13 :
Total Pages : 234 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Flora of Micronesia by : Edward E. Terrell

Download or read book Flora of Micronesia written by Edward E. Terrell and published by . This book was released on 1969 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Grasses of the Intermountain Region

Author : Laurel K. Anderton
Publisher :
ISBN 13 :
Total Pages : 578 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Grasses of the Intermountain Region by : Laurel K. Anderton

Download or read book Grasses of the Intermountain Region written by Laurel K. Anderton and published by . This book was released on 2009-11-23 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grasses of the Intermountain Region is a modification of the two grass volumes of the Flora of North America (FNA). It is designed for identifying members of the Poaceae in the region between the Sierra Nevada and Rocky Mountains, and is intended for use by botanists working with the grasses in this intermountain region of North America. The reduction in number of taxa included from FNA has reduced the length of the keys and made it possible to include, in a single volume, descriptions and illustrations for all taxa treated as well as provide distribution maps for species that are established in the area. Another difference from the FNA volumes is that the maps in this volume show only records from IMR and adjacent areas rather than the full North America range of the taxa.

Diversity, Phylogeny, and Evolution in the Monocotyledons

Author : Ole Seberg
Publisher :
ISBN 13 : 9788779343986
Total Pages : 0 pages
Book Rating : 4.3/5 (439 download)

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Book Synopsis Diversity, Phylogeny, and Evolution in the Monocotyledons by : Ole Seberg

Download or read book Diversity, Phylogeny, and Evolution in the Monocotyledons written by Ole Seberg and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Monocotyledons ('monocots'), though comprising only one fourth of all flowering plant species, are economically and ecologically crucial. In families such as the grasses and palms, they include some of the most valuable plant species to humanity. Numerous monocot species have great ornamental value due to their spectacular flowers or characteristic structural features. They range in size from the smallest flowering plants, Wolffia arrbiza, little more than 1 mm across, to massive palm trees up to 40 m tall. Monocot species occur in arctic regions, wet tropical forests, and deserts, and have a wide range of life forms, including floating and rooted aquatic plants, geophytes, epiphytes, and lianas. Diversity, Phylogeny, and Evolution in the Monocotyledons includes reviews and reports of current research by the world's leading specialists, based on presentations made at the Fourth International Conference on the Comparative Biology of the Monocotyledons and the Fifth International Symposium on Grass Systematics and Evolution, held in Copenhagen in 2008."--Publisher's description.

Contributions from the United States National Herbarium

Author :
Publisher :
ISBN 13 :
Total Pages : 790 pages
Book Rating : 4.:/5 (5 download)

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Book Synopsis Contributions from the United States National Herbarium by :

Download or read book Contributions from the United States National Herbarium written by and published by . This book was released on 1914 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Plant Conservation

Author : Gary A. Krupnick
Publisher :
ISBN 13 : 9780226455129
Total Pages : 346 pages
Book Rating : 4.4/5 (551 download)

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Book Synopsis Plant Conservation by : Gary A. Krupnick

Download or read book Plant Conservation written by Gary A. Krupnick and published by . This book was released on 2005 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural history has always been the foundation of conservation biology. For centuries, botanists collected specimens in the field to understand plant diversity; now that many habitats are threatened, botanists have turned their focus to conservation, and, increasingly, they look to the collections of museums, herbaria, and botanical gardens for insight on developing informed management programs. Plant Conservation explores the value of these collections in light of contemporary biodiversity studies. Plant Conservation opens with a broad view of plant biodiversity and then considers evolutionary and taxonomic threats and consequences of habitat alteration; specific threats to plant diversity, such as invasive species and global climate change; consequences of plant population decline at the ecological, evolutionary, and taxonomic levels; and, finally, management strategies that protect plant biodiversity from further decline. With a unique perspective on biodiversity and scientific collections, Plant Conservation ultimately emphasizes the role museums and botanical gardens will play in future conservation.

Perspectives in Amino Acid and Protein Geochemistry

Author : Glenn A. Goodfriend
Publisher : Oxford University Press, USA
ISBN 13 : 9780195135077
Total Pages : 392 pages
Book Rating : 4.1/5 (35 download)

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Book Synopsis Perspectives in Amino Acid and Protein Geochemistry by : Glenn A. Goodfriend

Download or read book Perspectives in Amino Acid and Protein Geochemistry written by Glenn A. Goodfriend and published by Oxford University Press, USA. This book was released on 2000 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amino Acids are not only the essential constituents of all living organisms, they also provide vital clues about life in the past. This book of contributed papers updates the science of amino acid geochemistry and replaces a classic but now outdated work, The Biogeochemistry of Amino Acids (out of print). The new book will have a wider focus than its predecessor, covering preservation of ancient proteins and amino acids, diagenesis of proteins and amino acids through geologic time and on short time scales (relevant to the preservation of museum materials), stable isotope geochemistry of proteins and amino acids, amino acid racemization, the origin of life, the stability of amino acids at hgh temperatures and pressures, and extraterrestrial amino acids. The primary audience for this book will be academics and graduate students in geochemistry, organic chemistry, archaeology, geochronology, and stratigraphy, although it will also be of interest to workers in forensic science.