Subaerial Algae From South Africa
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Subaerial Algae From South Africa
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Author : H. Printz
language : en
Publisher:
Release Date : 1920
Subaerial Algae From South Africa written by H. Printz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1920 with categories.
Subaerial Algae From South Africa
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Author : Henrik Printz
language : en
Publisher:
Release Date : 1921
Subaerial Algae From South Africa written by Henrik Printz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1921 with Algae categories.
Algae And Cyanobacteria In Extreme Environments
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Author : Joseph Seckbach
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-09-18
Algae And Cyanobacteria In Extreme Environments written by Joseph Seckbach and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-09-18 with Science categories.
This collection of essays is devoted to algae that are unexpectedly found in harsh habitats. The authors explain how these algae thrive in various temperature ranges, extreme pH values, salt solutions, UV radiation, dryness, heavy metals, anaerobic niches, various levels of illumination, and hydrostatic pressure. Not only do the essays provide clues about life on the edges of the Earth, but possibly elsewhere in the universe as well.
Biodiversity And Molecular Systematics Of Subaerial Algae From Africa And The Neotropics
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Author : Haj Abdeslam Allali
language : en
Publisher:
Release Date : 2011
Biodiversity And Molecular Systematics Of Subaerial Algae From Africa And The Neotropics written by Haj Abdeslam Allali and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Electronic dissertations categories.
Algae are a large and diverse group of photosynthetic organisms that range in size from microscopic unicellular to multicellular forms. They usually inhabit marine and freshwater habitats. However, some are terrestrial and are capable of living in soil or above the soil surface (subaerial). Tropical rainforests, with humid climate and diverse habitats, offer phycologists with a rich field for biodiversity exploration. In the past, algae in these environments have been the objective of many studies. However, algae from the African Tropical rainforest have been greatly overlooked. This investigation is targeting the biodiversity of subaerial algae from an African tropical rainforest in Gabon (Africa) as well as a Neotropical forest in Panama (Central America). During this investigation biodiversity studies were based on traditional assessments as well as state of the art technology such as metagenomic approaches. In this study, morphology based and molecular phylogenetic protocols have been integrated to elucidate the biodiversity and systematics of the subaerial green algal order Trentepohliales from Gabon, Africa. Based on morphological observations 14 species of Trentepohlia and Printzina (belonging to the order Trentepohliales) were found to occur in Gabon (six were newly recorded for the continent). Molecular phylogenetics of the Trentepohliales from Africa suggested that the genera Trentepohlia and Printzina are not monophyletic lineages. These results also suggested that a taxonomic reassessment of the Trentepohliales is necessary. The African subaerial algal biodiversity was assessed using a novel metagenomic approach at a broader taxonomic level. Results of this approach suggest that the African rainforest is home to green algal (Chlorophyta), cyanobacteria, and diatoms (Sramenopiles) taxa. Finally, Panamanian subaerial diversity was also evaluated using a metagenomic approach with an ecological application: the biodiversity of the epiphytic flora was compared in four different tree heights as well as the potential effect of the orientation (East versus West). Results of this investigation indicate that the distribution of the algal diversity in terms of major groups was essentially following a similar pattern along the vertical gradient in the forest canopy. In contrast, the distribution of algal groups and specialized taxa was dissimilar between Western and Eastern faces of trees.
Biogeography And Ecology Of Southern Africa
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Author : Marinus J.A. Werger
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Biogeography And Ecology Of Southern Africa written by Marinus J.A. Werger and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Southern Africa is certainly not a naturally bounded area so that there are several possibilities for delineating it and concepts about its extent. Wellington* discussed the various possibilities for delineation and suggested that one line stands out more clearly and definitely as a physical boundary than any other, namely the South Equatorial Divide, the watershed between the ZaIre, Cuanza and Rufiji Rivers on the one hand and the Z ambezi, Cunene and Rovuma Rivers on the other. This South Equatorial Divide is indeed a major line of separation for some organisms and is also applicable in a certain geographical sense, though it does not possess the slightest significance for many other groups of organisms, ecosystems or geographical and physical features of Africa. The placing of the northern boundary of southern Africa differs in fact strongly per scientific dis cipline and is also influenced by practical considerations regarding the possibilities of scientific work as subordinate to certain political realities and historically grown traditions. This is illustrated, for example, in such works as the Flora of Southern Africa, where the northern boundary of the area is conceived as the northern and eastern political boundaries of South West Africa, South Africa and Swaziland. Botswana, traditionally included in the area covered by the Flora Zambesiaca, thus forms a large wedge in 'Southern Africa'.
Freshwater And Subaerial Algae From Natal
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Author : F. E. Fritsch
language : en
Publisher:
Release Date : 1924
Freshwater And Subaerial Algae From Natal written by F. E. Fritsch and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1924 with categories.
A Study On The Diversity Of Subaerial Algae In Southern Georgia
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Author : John D. Griner
language : en
Publisher:
Release Date : 2010
A Study On The Diversity Of Subaerial Algae In Southern Georgia written by John D. Griner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Algae categories.
Epiphytic Terrestrial Subaerial Algae Of The Genera Trentepohlia And Printzina
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Author : Pozi Milow
language : en
Publisher:
Release Date : 2006
Epiphytic Terrestrial Subaerial Algae Of The Genera Trentepohlia And Printzina written by Pozi Milow and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Algae categories.
Transactions Of The Royal Society Of South Africa
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Author : Royal Society of South Africa
language : en
Publisher:
Release Date : 1940
Transactions Of The Royal Society Of South Africa written by Royal Society of South Africa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1940 with Natural history categories.
Management And Ecology Of Freshwater Plants
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Author : Joseph Caffrey
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Management And Ecology Of Freshwater Plants written by Joseph Caffrey and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
There is a growing need for appropriate management of aquatic plants in rivers and canals, lakes and reservoirs, and drainage channels and urban waterways. This management must be based on a sound knowledge of the ecology of freshwater plants, their distribution and the different forms of control available including chemical, physical, biological and biomanipulation. This series of papers from over 20 different countries was generated from the highly successful European Weed Research Society symposia on aquatic plant management, this being the ninth. The contributions provide a valuable insight into the complexities involved in managing aquatic systems, discuss state-of-the-art control techniques such as biomanipulation using fish and waterfowl and the use of straw, and deal with patterns of regrowth and recovery post-management. Careful consideration is given to the use of chemicals, a practice which has come under scrutiny in recent years. Underpinning the development of such control techniques is a growing body of knowledge relating to the biology and ecology of water plants, including growth responses under different trophic conditions, the impact of pollution, and aspects of photosynthesis. The authorship of the papers represents the collective wisdom of leading scientists and experts from fisheries agencies, river authorities, nature conservation agencies, the agrochemical industry and both governmental and non-governmental organisations.