Search results for: the-trophic-spectrum-revisited

The Trophic Spectrum Revisited

Author : Colin S. Reynolds
File Size : 81.5 MB
Format : PDF, ePub, Docs
Download : 348
Read : 738
Download »
These proceedings of a workshop of the International Association for Phytoplankton Taxonomy and Ecology are directed specifically at the relationship between phytoplankton ecology and the trophic status of water bodies. Contributions address the fact that distinctive assemblages of phytoplankton species are closely associated with particular categories of water bodies. Particular attention is paid to how communities are assembled and to the ways in which environmental constraints filter the successful species. Overview articles are included. The book will be a valuable source of information to limnologists, algologists, and the technical staff of all water suppliers.

Phytoplankton and Equilibrium Concept The Ecology of Steady State Assemblages

Author : Luigi Naselli-Flores
File Size : 83.76 MB
Format : PDF
Download : 201
Read : 1096
Download »
This volume summarises the outcome of the 13th Workshop of the International Association of Phytoplankton Taxonomy and Ecology (IAP) on if, and if so under what conditions phytoplankton assemblages reach equilibrium in natural environments. Quite a number of ecological concepts use terms such as: ecological equilibrium, stability, steady-state, climax, stable state, etc. However, these ecological concepts often have been "translations" of scientific theories developed in physics or chemistry but they almost always lack scientific corroboration, the problem being that often these concepts remain vague and they are not formally defined. Here an attempt to formally recognize what "equilibrium" is in phytoplankton ecology is traced. The book also contains papers by leading scientists on the taxonomy of two selected key groups: cryptomonads and filamentous cyanoprokaryotes. This volume is addressed to all those involved in phytoplankton taxonomy and ecology and in ecology itself.

Ecological Modelling of River Wetland Systems

Author : Maria Gabriela Alvarez Mieles
File Size : 47.8 MB
Format : PDF, Docs
Download : 564
Read : 276
Download »
Around 6% of the Earth's land surface is covered by wetlands. Wetlands play a key role in hydrological and biogeochemical cycles, delivering multiple benefits to society: sources of water supply, flood regulation, water purification, agriculture, fisheries, and biodiversity. Hence, wetland systems are of immense socio-economic as well as ecological importance. In this research, the focus was on the Abras de Mantequilla (AdM) wetland in the tropical coastal region of Ecuador, a RAMSAR site and case study area for the EU-FP7 WETwin project. The research in this thesis involves a combination of field data collection, multivariate analysis techniques, as well as numerical modelling studies. The goal was to explore the effects of changes in hydrological forcing on the hydrodynamic and ecohydraulic responses of the wetland. The study aims to contribute to the understanding of how a tropical river-wetland system functions in terms of hydrodynamics, water quality, primary production, and biotic communities. Spatial patterns of biotic communities and environmental variables are obtained as well as spatio-temporal variability of hydrodynamics, water quality, primary productivity and fish habitat-suitability conditions. In data scarce areas and countries with financial constraints, the combination of field measurements with numerical models was extremely useful and relevant, confirming that these techniques complement each other in obtaining a better understanding of the dynamics of freshwater river–wetland systems. Studies like the present research can be used to enhance awareness about the environmental services of wetlands and stimulate cooperation between all stakeholders in order to achieve more sustainable wetland management.

Limnoecology

Author : Winfried Lampert
File Size : 74.16 MB
Format : PDF, ePub, Mobi
Download : 952
Read : 468
Download »
This new edition will build upon the strengths of the earlier work but will be thoroughly revised throughout to incorporate findings from new technologies and methods (notably the rapid development of molecular genetic methods and stable isotope techniques) that have allowed a rapid and ongoing development of the field.

Advances in Limnology

Author :
File Size : 50.25 MB
Format : PDF, Docs
Download : 758
Read : 339
Download »

American Book Publishing Record

Author :
File Size : 85.75 MB
Format : PDF, ePub, Mobi
Download : 633
Read : 1163
Download »

Hoehnea

Author :
File Size : 88.95 MB
Format : PDF, Docs
Download : 552
Read : 1287
Download »

Directory of Published Proceedings

Author :
File Size : 58.97 MB
Format : PDF, ePub, Mobi
Download : 188
Read : 521
Download »

Index of Conference Proceedings

Author : British Library. Document Supply Centre
File Size : 27.80 MB
Format : PDF, ePub, Mobi
Download : 278
Read : 301
Download »

The British National Bibliography

Author : Arthur James Wells
File Size : 57.12 MB
Format : PDF
Download : 549
Read : 845
Download »

Changes in the North Sea Ecosystem and Their Causes

Author :
File Size : 77.16 MB
Format : PDF, ePub, Docs
Download : 996
Read : 1183
Download »

Books in Print 2004 2005

Author :
File Size : 50.20 MB
Format : PDF, Docs
Download : 610
Read : 1035
Download »

Lectures in Astrobiology

Author : Muriel Gargaud
File Size : 41.64 MB
Format : PDF, ePub
Download : 530
Read : 715
Download »
First comprehensive, beginning graduate level book on the emergent science of astrobiology.

Rutherford s Vascular Surgery E Book

Author : Jack L. Cronenwett
File Size : 79.61 MB
Format : PDF, ePub
Download : 350
Read : 538
Download »
Published in association with the Society for Vascular Surgery, Rutherford’s Vascular Surgery presents state-of-the-art updates on all aspects of vascular health care. Extensively revised by many new authors to meet the needs of surgeons, interventionalists, and vascular medicine specialists, this medical reference book incorporates medical, endovascular and surgical treatment, as well as diagnostic techniques, decision making and fundamental vascular biology. Consult this title on your favorite e-reader, conduct rapid searches, and adjust font sizes for optimal readability. Master the latest developments, techniques, and approaches with thorough updates on endovascular applications, vascular access, imaging, non-operative management, and much more. View clinical and physical findings and operative techniques more vividly with a full-color layout and images. Get answers you can depend on. Rutherford's delivers the world’s most trusted information on all major areas of vascular health care, is written by international experts, and includes up-to-date bibliographies and annotated recommended references. Discover emerging techniques in rapidly advancing topics, with special emphasis on endovascular coverage, vascular imaging, angiography, CT and MRI. Explore brand new chapters on dialysis catheters, renovascular disease, and management of branches during endovascular aneurysm. Stay up-to-date with the latest coverage of endovascular procedures that reflects the changing practices and techniques in vascular surgery. Access videos at Expert Consult.

Encyclopedia of Earth System Science

Author : William Aaron Nierenberg
File Size : 27.35 MB
Format : PDF, Mobi
Download : 682
Read : 1088
Download »
"The concept of earth system science embraces the integration of the myriad skeins of science and engineering that address the complexity of the natural system that is the earth and its surroundings."--Page vii.

Aquatic Sciences and Fisheries Abstracts

Author :
File Size : 66.60 MB
Format : PDF, Docs
Download : 289
Read : 430
Download »

Mammalia

Author :
File Size : 58.18 MB
Format : PDF, Kindle
Download : 109
Read : 240
Download »

Dissertation Abstracts International

Author :
File Size : 62.33 MB
Format : PDF
Download : 531
Read : 1044
Download »

Ecology Abstracts

Author :
File Size : 51.92 MB
Format : PDF, ePub, Docs
Download : 255
Read : 903
Download »
Coverage: 1982- current; updated: monthly. This database covers current ecology research across a wide range of disciplines, reflecting recent advances in light of growing evidence regarding global environmental change and destruction. Major ares of subject coverage include: Algae/lichens, Animals, Annelids, Aquatic ecosystems, Arachnids, Arid zones, Birds, Brackish water, Bryophytes/pteridophytes, Coastal ecosystems, Conifers, Conservation, Control, Crustaceans, Ecosyst em studies, Fungi, Grasses, Grasslands, High altitude environments, Human ecology, Insects, Legumes, Mammals, Management, Microorganisms, Molluscs, Nematodes, Paleo-ecology, Plants, Pollution studies, Reptiles, River basins, Soil, TAiga/tundra, Terrestrial ecosystems, Vertebrates, Wetlands, Woodlands.

Endocrinology Index

Author :
File Size : 40.49 MB
Format : PDF, ePub, Mobi
Download : 346
Read : 968
Download »