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Sexual Allocation Patterns In Red Alder Alnus Rubra Bong Along Three Elevation Transects
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Book Synopsis Sexual Allocation Patterns in Red Alder (Alnus Rubra Bong.) Along Three Elevation Transects by : Susanne Marie Brown
Download or read book Sexual Allocation Patterns in Red Alder (Alnus Rubra Bong.) Along Three Elevation Transects written by Susanne Marie Brown and published by . This book was released on 1986 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forestry Theses Accepted by Colleges and Universities in the United States by :
Download or read book Forestry Theses Accepted by Colleges and Universities in the United States written by and published by . This book was released on 1981 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Early Wide Spacing in Red Alder (Alnus Rubra Bong.) by :
Download or read book Early Wide Spacing in Red Alder (Alnus Rubra Bong.) written by and published by . This book was released on 1985 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Thermoperiod on the Early Growth of Red Alder from Different Elevations and Geographic Sources by : Allan Campbell
Download or read book Effects of Thermoperiod on the Early Growth of Red Alder from Different Elevations and Geographic Sources written by Allan Campbell and published by . This book was released on 1973 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was designed to help elucidate what differences, if any, exist within the species Alnus rubra Bong., grown naturally at various elevations and locations throughout the Pacific Northwest and coastal Alaska. Increasing importance of the species, including both economic and silviculture values, prompted the investigation into the early growth of red alder, an area in which detailed information is lacking. Two areas of investigation that were established included, first, an elevational transect from Newport to Marys Peak in the Coast Range of Oregon and, second, a study of ten geographic sources located throughout the range of Alnus rubra. Both phases of this investigation were conducted under three growth regimes involving the use of a 16 hour photoperiod and three thermoperiods (day-night temperatures are: 21°, 16°C; 10°, 10°C and 21°, 21°C). The Transect Study showed differences between red alder conelets (weight and size) and seeds (weights and germination) from different elevations to be significant at the 1% level. The effect of the lower thermoperiod (10°, 10°C) in reducing the rate of germnination was also shown. No significant differences were found between seedlings representing the various elevations in other characteristics (height, diameter and leaf dimension). The Geographic Study, involving wildlings supplied by the U.S. Forest Service, was concerned primarily with seedling height growth and leaf size. Significant differences were found between seedlings from different geographic locations but, because of the limited number of seedlings available, the reliability of the data to accurately express variation between these locations is questionable. The effect of thermoperiod within a single tested environment was also significant but with results that were opposite to those obtained in the Transect Study. In the Geographic Study the height growth of seedlings under the cold condition (10°, 10°C) was significantly greater than for seedlings grown under the other growth conditions. In the Transect Study, the seedlings grown under the cold condition were significantly shorter than those grown under the other regimes.
Book Synopsis Physiological Ecology of North American Plant Communities by : Brain F. Chabot
Download or read book Physiological Ecology of North American Plant Communities written by Brain F. Chabot and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although, as W.D. Billings notes in his chapter in this book. the development of physiological ecology can be traced back to the very beginnings of the study of ecology it is clear that the modern development of this field in North America is due in the large part to the efforts of Billings alone. The foundation that Billings laid in the late 1950s came from his own studies on deserts and subsequently arctic and alpine plants, and also from his enormous success in instilling enthusiasm for the field in the numerous students attracted to the plant ecology program at Duke University. Billings' own studies provided the model for subsequent work in this field. Physiological techniques. normally confined to the laboratory. were brought into the field to examine processes under natural environmental conditions. These field studies were accompanied by experiments under controlled conditions where the relative impact of various factors could be assessed and further where genetic as opposed to environmental influences could be separated. This blending of field and laboratory approaches promoted the design of experiments which were of direct relevance to understanding the distribution and abundance of plants in nature. Physiological mechanisms were studied and assessed in the context of the functioning of plants under natural conditions rather than as an end in itself.
Download or read book Plant Litter written by Björn Berg and published by Springer Science & Business Media. This book was released on 2013-11-19 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of the 2nd edition, there have been substantial developments in the field of litter decomposition. This fully revised and updated 3rd edition of Plant Litter reflects and discusses new findings and re-evaluates earlier ones in light of recent research and with regard to current areas of investigation. The availability of several long-term studies allows a more in-depth approach to decomposition patterns and to the later stages of decomposition, as well as to humus formation and accumulation. The latest information focuses on three fields: - the effects of manganese on decomposition and possibly on carbon sequestration, - new findings on decomposition dynamics, and - the new analytical technique using 13C-NMR.
Book Synopsis Forest Development in Cold Climates by : John Alden
Download or read book Forest Development in Cold Climates written by John Alden and published by Springer Science & Business Media. This book was released on 1993-06-30 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: ''Required reading for forest scientists.'' -Northeastern Naturalist
Book Synopsis Silvics of Forest Trees of the United States by :
Download or read book Silvics of Forest Trees of the United States written by and published by . This book was released on 1965 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology and Ecology of Norway Spruce by : Mark G. Tjoelker
Download or read book Biology and Ecology of Norway Spruce written by Mark G. Tjoelker and published by Springer Science & Business Media. This book was released on 2007-05-29 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a concise and comprehensive review of the biology, ecology, and management of Norway spruce. Written by 25 experts in the field, and richly illustrated, it integrates classic and contemporary literature. More than 2000 works are cited in the text, which highlights basic research and forestry practices in central and Eastern Europe. The huge range of topics covered includes the species’ morphology, its physiology and nutrition, and its ecology.
Download or read book Fungal Ecology written by Neville J. Dix and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fungi play vital roles in all ecosystems, as decomposers, symbionts of animals and plants and as parasites. Thus their ecology is of great interest. It has been estimated that there may be as many as 1. 5 million species of fungi, many of which are still undescribed. These interact in various ways with their hosts, with their substrates, with their competitors (including other fungi) and with abiotic variables of their environment. They show great variation in morphology, reproduction, life cycles and modes of dispersal. They grow in almost every conceivable habitat where organic carbon is available: on rock surfaces, in soil, the sea and in fresh water, at extremes of high and low temperature, on dry substrata and in concen trated solutions. Fungal ecology is therefore an enormous subject and its literature is voluminous. In view of this we have had to be selective in the material we have included in this book. We have chosen to concentrate on subjects in which we have some personal experience through either research or teaching. We preferred to tackle a few subjects in depth instead of attempting to cover a wider range of topics superficially. We are conscious of the extensive gaps in coverage: for example on the ecology of lichens, of fungal plant pathogens and of the complex interactions between fungi and animals. It is some justification that book-length treatments of these subjects are available elsewhere.
Book Synopsis Forest and Woodland Ecology by : F. T. Last
Download or read book Forest and Woodland Ecology written by F. T. Last and published by . This book was released on 1981 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Health Conditions in Alaska by :
Download or read book Forest Health Conditions in Alaska written by and published by . This book was released on 2003 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Red Alder by : Norman P. Worthington
Download or read book Red Alder written by Norman P. Worthington and published by . This book was released on 1962 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Red alder, the most important hardwood in Oregon and Washington, comprises about two-thirds of the hardwood timber resource of the two-State region.
Book Synopsis California Riparian Systems by : Richard E. Warner
Download or read book California Riparian Systems written by Richard E. Warner and published by Univ of California Press. This book was released on 1984-01-01 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents 135 of the papers presented at the 1981 California Riparian Systems Conference. The papers address all aspects of riparian systems: habitat, wildlife, land management, land use policy planning, conservation and water resource management.
Book Synopsis Beavers: Boreal Ecosystem Engineers by : Carol A. Johnston
Download or read book Beavers: Boreal Ecosystem Engineers written by Carol A. Johnston and published by Springer. This book was released on 2017-08-28 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridging the fields of ecosystem science and landscape ecology, this book integrates Dr. Carol Johnston's research on beaver ecosystem alteration at Voyageurs National Park. The findings about the vegetation, soils, and chemistry of beaver impoundments synthesized in the text provide a cohesive reference useful to wetland scientists, ecosystems and landscape ecologysts, wildlife managers, and students. The beaver, Castor canadensis, is an ecosystem engineer unequaled in its capacity to alter landscapes through browsing and dam building, whose population recovery has re-established environmental conditions that probably existed for millenia prior to its near extirpation by trapping in the 1800s and 1900s. Beavers continue to regain much of their natural range throughout North America, changing stream and forest ecosystems in ways that may be lauded or vilified. Interest in beavers by ecologists remains keen as new evidence emerges about the ecological, hydrological, and biogeochemical effects of beaver browsing and construction. There is a critical need for ecologists and land managers to understand the potential magnitude, persistence, and ecosystem services of beaver landscape transformation. The 88-year record of beaver landscape occupation and alteration documented by Dr. Carol Johnston and colleagues from aerial photography and field work provides a unique resource toward understanding the ecosystem effects and sustainability of beaver activity.
Book Synopsis Ecological Responses to the 1980 Eruption of Mount St. Helens by : Virginia H. Dale
Download or read book Ecological Responses to the 1980 Eruption of Mount St. Helens written by Virginia H. Dale and published by Springer Science & Business Media. This book was released on 2006-01-16 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1980 eruption of Mount St. Helens caused tragic loss of life and property, but also created a unique opportunity to study a huge disturbance of natural systems and their subsequent responses. This book synthesizes 25 years of ecological research into of volcanic activity, and shows what actually happens when a volcano erupts, what the immediate and long-term dangers are, and how life reasserts itself in the environment.
Book Synopsis Comparative and Evolutionary Genomics of Angiosperm Trees by : Andrew Groover
Download or read book Comparative and Evolutionary Genomics of Angiosperm Trees written by Andrew Groover and published by Springer. This book was released on 2017-11-21 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marking the change in focus of tree genomics from single species to comparative approaches, this book covers biological, genomic, and evolutionary aspects of angiosperm trees that provide information and perspectives to support researchers broadening the focus of their research. The diversity of angiosperm trees in morphology, anatomy, physiology and biochemistry has been described and cataloged by various scientific disciplines, but the molecular, genetic, and evolutionary mechanisms underlying this diversity have only recently been explored. Excitingly, advances in genomic and sequencing technologies are ushering a new era of research broadly termed comparative genomics, which simultaneously exploits and describes the evolutionary origins and genetic regulation of traits of interest. Within tree genomics, this research is already underway, as the number of complete genome sequences available for angiosperm trees is increasing at an impressive pace and the number of species for which RNAseq data are available is rapidly expanding. Because they are extensively covered by other literature and are rapidly changing, technical and computational approaches—such as the latest sequencing technologies—are not a main focus of this book. Instead, this comprehensive volume provides a valuable, broader view of tree genomics whose relevance will outlive the particulars of current-day technical approaches. The first section of the book discusses background on the evolution and diversification of angiosperm trees, as well as offers description of the salient features and diversity of the unique physiology and wood anatomy of angiosperm trees. The second section explores the two most advanced model angiosperm tree species (poplars and eucalypts) as well as species that are soon to emerge as new models. The third section describes the structural features and evolutionary histories of angiosperm tree genomes, followed by a fourth section focusing on the genomics of traits of biological, ecological, and economic interest. In summary, this book is a timely and well-referenced foundational resource for the forest tree community looking to embrace comparative approaches for the study of angiosperm trees.
