Natural Communities of New Hampshire PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Natural Communities of New Hampshire PDF full book. Access full book title Natural Communities of New Hampshire by Daniel D. Sperduto. Download full books in PDF and EPUB format.
Author: Daniel D. Sperduto
Publisher:
ISBN:
Category : History
Languages : en
Pages : 244
Get Book Here
Book Description
Author: Daniel D. Sperduto
Publisher:
ISBN:
Category : History
Languages : en
Pages : 244
Get Book Here
Book Description
Author: M.P. Weinstein
Publisher: Springer Science & Business Media
ISBN: 0792360192
Category : Nature
Languages : en
Pages : 862
Get Book Here
Book Description
Tidal salt marshes are viewed as critical habitats for the production of fish and shellfish. As a result, considerable legislation has been promulgated to conserve and protect these habitats, and much of it is in effect today. The relatively young science of ecological engineering has also emerged, and there are now attempts to reverse centuries-old losses by encouraging sound wetland restoration practices. Today, tens of thousands of hectares of degraded or isolated coastal wetlands are being restored worldwide. Whether restored wetlands reach functional equivalency to `natural' systems is a subject of heated debate. Equally debatable is the paradigm that depicts tidal salt marshes as the `great engine' that drives much of the secondary production in coastal waters. This view was questioned in the early 1980s by investigators who noted that total carbon export, on the order of 100 to 200 g m-2 y-1 was of much lower magnitude than originally thought. These authors also recognized that some marshes were either net importers of carbon, or showed no net exchange. Thus, the notion of `outwelling' has become but a single element in an evolving view of marsh function and the link between primary and secondary production. The `revisionist' movement was launched in 1979 when stable isotopic ratios of macrophytes and animal tissues were found to be `mismatched'. Some eighteen years later, the view of marsh function is still undergoing additional modification, and we are slowly unraveling the complexities of biogeochemical cycles, nutrient exchange, and the links between primary producers and the marsh/estuary fauna. Yet, since Teal's seminal paper nearly forty years ago, we are not much closer to understanding how marshes work. If anything, we have learned that the story is far more complicated than originally thought. Despite more than four decades of intense research, we do not yet know how salt marshes function as essential habitat, nor do we know the relative contributions to secondary production, both in situ or in the open waters of the estuary. The theme of this Symposium was to review the status of salt marsh research and revisit the existing paradigm(s) for salt marsh function. Challenge questions were designed to meet the controversy head on: Do marshes support the production of marine transient species? If so, how? Are any of these species marsh obligates? How much of the production takes place in situ versus in open waters of the estuary/coastal zone? Sessions were devoted to reviews of landmark studies, or current findings that advance our knowledge of salt marsh function. A day was also devoted to ecological engineering and wetland restoration papers addressing state-of-the-art methodology and specific case histories. Several challenge papers arguing for and against our ability to restore functional salt marshes led off each session. This volume is intended to serve as a synthesis of our current understanding of the ecological role of salt marshes, and will, it is hoped, pave the way for a new generation of research.
Author: U.S. Fish and Wildlife Service
Publisher:
ISBN:
Category : Aquatic ecology
Languages : en
Pages : 110
Get Book Here
Book Description
Author: Charles T. Roman
Publisher:
ISBN: 9781597263535
Category : Ecology
Languages : en
Pages :
Get Book Here
Book Description
Author: John Wilkinson, T.T. Harland
Publisher: BoD – Books on Demand
ISBN: 3732659143
Category : Fiction
Languages : en
Pages : 234
Get Book Here
Book Description
Reproduction of the original: Lancashire Folk-Lore by John Harland, T.T. Wilkinson
Author: I. McCave
Publisher: Springer Science & Business Media
ISBN: 1461587476
Category : Science
Languages : en
Pages : 322
Get Book Here
Book Description
The Conference on the Benthic Boundary Layer was held under the auspices of the NATO Science Committee as part of its continuing effort to promote the useful progress of science through international cooperation. Science Committee Conferences are deliberately designed to focus attention on unsolved problems, with carefully selected participants invited to provide complementary expertise from a variety of relevant disciplines. Through inten sive discussion in small groups they seek to reach a consensus on assessments and recommendations for future research emphasis, which it is hoped will be of value to the larger scientific community. The subjects treated over the past few years have been as varied as science itself-e.g., computer software engineering, chemical catalysis, and materials and energy research. The present effort evolved from informal discussions between marine geolo gists, chemists, and biologists which underlined the desirability of improved communication among those concerned with the benthic layer. In both scien tific and technological terms this is an exciting frontier, rich in promise but poorly understood at present. It is particularly striking to realize that there are at least as many definitions of the benthic layer as there are disciplines involved, and it seemed clear that there was much to be gained by a detailed exchange of views on research capabilities, trends, and priorities. The results of the meeting appear to have confirmed the hopes of the sponsors.
Author: Charles Henry Pope
Publisher:
ISBN:
Category : Reference
Languages : en
Pages : 532
Get Book Here
Book Description
Thomas Loring (d. 1661) married Jane Newton, and immigrated from England to Hingham, Massachusetts. Descendants lived throughout the United States, and some immigrated to Canada.
Author: T.R. New
Publisher: Springer Science & Business Media
ISBN: 1402060475
Category : Science
Languages : en
Pages : 94
Get Book Here
Book Description
This issue of Journal of Insect Conservation is the first to be dedicated entirely to beetles. It contains a number of papers to demonstrate the variety and scope of problems and conservation concerns that surround these insects. A short introductory perspective is followed by eight original contributions, in which beetles from many parts of the world are considered, and in which some major threats to their wellbeing are evaluated.
Author: Robert B. Whitlatch
Publisher:
ISBN:
Category : Coasts
Languages : en
Pages : 144
Get Book Here
Book Description
Author: Harry P. Curtis
Publisher:
ISBN:
Category : Cotton trade
Languages : en
Pages : 316
Get Book Here
Book Description
