Download or read book Effects of Anthropogenic Disturbance on the Diversity of Foliicolous Lichens in Tropical Rainforests of East Africa Godere Ethiopia Budongo Uganda and Kakamega Kenya written by Kumelachew Yeshitela and published by Cuvillier Verlag. This book was released on 2008 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foliicolous lichens are one of the most abundant epiphytes in tropical rainforests and one of the few groups of organisms that characterize these forests. Tropical rainforests are increasingly affected by anthropogenic disturbance resulting in forest destruction and degradation. However, not much is known on the effects of anthropogenic disturbance on the diversity of foliicolous lichens. Understanding such effects is crucial for the development of appropriate measures for the conservation of such organisms. In this study, foliicolous lichens diversity was investigated in three tropical rainforests in East Africa. Godere Forest in Southwest Ethiopia is a transitional rainforest with a mixture of Afromontane and Guineo-Congolian species. The forest is secondary and has been affected by shifting cultivation, semi-forest coffee management and commercial coffee plantation. Budongo Forest in West Uganda is a Guineo-Congolian rainforest consisting of primary and secondary forests. Kakamega Forest in western Kenya is a transitional rainforest with a mixture of Guineo-Congolian and Afromontane species. The forest is a mosaic of near-primary forest, secondary forests of different seral stages, grasslands, plantations, and natural glades.
Download or read book Effects of nithropogenic disturbance on the diversity of foliicolous lichens in tropical rainforests of East Africa Godere Ethiopia Budongo Uganda and Kakamega Kenya written by Kumelachew Yeshitela and published by Cuvillier Verlag. This book was released on 2008-08-27 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foliicolous lichens are one of the most abundant epiphytes in tropical rainforests and one of the few groups of organisms that characterize these forests. Tropical rainforests are increasingly affected by anthropogenic disturbance resulting in forest destruction and degradation. However, not much is known on the effects of anthropogenic disturbance on the diversity of foliicolous lichens. Understanding such effects is crucial for the development of appropriate measures for the conservation of such organisms. In this study, foliicolous lichens diversity was investigated in three tropical rainforests in East Africa. Godere Forest in Southwest Ethiopia is a transitional rainforest with a mixture of Afromontane and Guineo-Congolian species. The forest is secondary and has been affected by shifting cultivation, semi-forest coffee management and commercial coffee plantation. Budongo Forest in West Uganda is a Guineo-Congolian rainforest consisting of primary and secondary forests. Kakamega Forest in western Kenya is a transitional rainforest with a mixture of Guineo-Congolian and Afromontane species. The forest is a mosaic of near-primary forest, secondary forests of different seral stages, grasslands, plantations, and natural glades. Leaves carrying foliicolous lichens were collected from the forest understorey in the shady understorey and light gap microsite regimes. Morphological and anatomical characters were used for the identification of foliicolous lichens. Different indices were used for the computation of α- and β-diversity. The biogeographical distribution patterns of the foliicolous lichens of the study area and the possible use of foliicolous lichens as indicator of forest disturbance were analysed. A total of 70 species of foliicolous lichens and lichenicolous fungi belonging to 27 genera and 15 families were recorded from Godere Forest. From Budongo Forest 125 species of foliicolous lichens & lichenicolous lichens belonging to 32 genera and 16 families were recorded. From Kakamega Forest 137 species belonging to 41 genera and 17 families were recorded. In addition, 7 foliicolous lichens new to science have been recorded in this study. The most species-rich families in both forests were Pilocarpaceae, Porinaceae, Gomphillaceae, and Strigulaceae. In Godere higher foliicolous lichen diversity was recorded in Dushi than in Bishan Waka forest site. In Budongo high foliicolous lichen diversity was recorded in the young secondary and the primary swamp forests. In Kakamega Forest high foliicolous lichen diversity was recorded in the sites of Yala, Buyangu, Isiukhu, and Kisere. Low diversity was recorded in Malava, Kaimosi and Camp site. Among the 3 forests investigated, α- diversity was significantly higher in Kakamega and Budongo than in Godere forest. β- diversity was high in Kakamega and Budongo and low in Godere. Several studies have shown higher foliicolous lichen diversity in undisturbed primary forests than in disturbed secondary forests. Our study showed high foliicolous lichen diversity in both primary.
Download or read book New Trends in Environmental Engineering Agriculture Food Production and Analysis written by Wojciech Janczukowicz and published by MDPI. This book was released on 2021-09-02 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Special Issue presents the latest advances in agriculture, aquaculture, food technology and environmental protection and engineering, discussing, among others, the following issues: new technologies in water, stormwater and wastewater treatment; water saving, lake restoration; new sludge and waste management systems; biodiesel production from animal fat waste; the microbiological quality of compound fish feeds for aquaculture; the role of technological processes to improve food quality and safety; new trends in the analysis of food and food components including in vitro, in vivo, and in silico analyses; and functional and structural aspects of bioactivities of food molecules.
Download or read book Biodiversity and Ecology of Afromontane Rainforests with Wild Coffea Arabica L Populations in Ethiopia written by Feyera Senbeta Wakjira and published by . This book was released on 2006 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Montane Rainforest with Wild Coffea Arabica in the Bonga Region SW Ethiopia written by Christine B. Schmitt and published by Cuvillier Verlag. This book was released on 2006 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Frugivores Seed Dispersal and Tree Regeneration Along a Human Disturbance Gradient in East African Tropical Rainforests written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical forest mutualisms are under threat from increased rates of forest conversion and degradation. Seed dispersal and regeneration is important for maintenance of both trees and frugivores. To elucidate the effect of small-scale anthropogenic disturbance on frugivore community and the vital ecosystem process of seed dispersal and regeneration I investigated (1) the frugivore community and fruit removal rates of Celtis durandii (Ulmaceae) and (2), the relationship between fleshy-fruited tree species, frugivores and fleshy-fruited tree seedling establishment in three East African tropical rainforests. During frugivore community census I recorded 40 frugivorous birds and primates in the three forests. Moreover, I recorded more frugivores in little disturbed sites as compared to heavily disturbed sites. From observations on C. durandii trees I recorded more frugivore visitors on trees located in little disturbed than in heavily disturbed sites. This lead to marginally more seeds removed by frugivores in little disturbed than in heavily disturbed sites. The results did not differ among the three rainforests, suggesting that they were consistent at a regional scale. Therefore, it appears that small-scale forest disturbance has a more general negative impact on frugivores and their seed dispersal services than previously anticipated. During the vegetation survey I recorded 131 fleshy-fruited tree species in the three rainforests. Small-scale human disturbance marginally significantly enhanced fleshy-fruited tree species richness with no direct effect on frugivore density and species richness of fleshy-fruited tree seedlings. Richness of fleshy-fruited trees had a marginally significant positive influence on frugivore density but not on seedlings. Correspondingly, the density of frugivores significantly increased the species richness of fleshy-fruited tree seedlings. Thus, small-scale disturbance appear to have increased seedling establishment indirectly through increas.
Download or read book Monitoring with Lichens Monitoring Lichens written by Pier Luigi Nimis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive, up-to-date review of lichens as biomonitors of air pollution (bioindication, metal and radionuclide accumulation, biomarkers), and as monitors of environmental change (including global climate change and biodiversity loss) in a wide array of terrestrial habitats. Several methods for using lichens as biomonitors are described in a special section of the book.
Download or read book Indian Lichens written by K. P. Singh and published by . This book was released on 2010 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Lichen Symbiosis written by Vernon Ahmadjian and published by John Wiley & Sons. This book was released on 1993-08-30 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Not only an invaluable reference to what is known about lichen bionts and their interactions but also a guide to future studies. Compares various aspects of lichen-forming bionts with those of other fungi, algae and cyanobacteria. Features in-depth descriptions of culture methods. Includes over 1000 references representing a selective sampling in such subjects as air pollution, photosynthesis and respiration.
Download or read book Microchemical Methods for the Identification of Lichens written by Alan Orange and published by Twayne Publishers. This book was released on 2001 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Foliicolous Lichens written by Robert Lücking and published by . This book was released on 1992 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Urban Vulnerability and Climate Change in Africa written by Stephan Pauleit and published by Springer. This book was released on 2015-04-13 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Urbanisation and climate change are among the major challenges for sustainable development in Africa. The overall aim of this book is to present innovative approaches to vulnerability analysis and for enhancing the resilience of African cities against climate change-induced risks. Locally adapted IPCC climate change scenarios, which also consider possible changes in urban population, have been developed. Innovative strategies to land use and spatial planning are proposed that seek synergies between the adaptation to climate change and the need to solve social problems. Furthermore, the book explores the role of governance in successfully coping with climate-induced risks in urban areas. The book is unique in that it combines: a top-down perspective of climate change modeling with a bottom-up perspective of vulnerability assessment; quantitative approaches from engineering sciences and qualitative approaches of the social sciences; a novel multi-risk modeling methodology; and strategic approaches to urban and green infrastructure planning with neighborhood perspectives of adaptation.
Download or read book Ethiopian Church Forests written by Alemayehu Wassie Eshete and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management of Vegetation written by J. Michael Way and published by . This book was released on 1983 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estate management and economics. Management of aquatic vegetation. Grasslands and herbaceous. Woodlands and forestry. Uplands. Scrub and farmland habitats.
Download or read book The Lichen Forming Fungi written by D. L. Hawksworth and published by Springer. This book was released on 1984-09-01 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lichen assocIations include some of the oldest living organisms and represent a major nutritional method adopted by one in five fungi. Major advances in our knowledge of these biologically fascinating organisms have been made in recent years and they now have a great deal to offer to teaching in colleges and universities. In addition to being examples of biotrophic systems, they merit discussion in courses on fungal phylogeny, fungal nutrition, ecology, ecophysiology, biogeography, evolution, chemo taxonomy, environmental monitoring, and algology. As all aspects of lichenology cannot be treated adequately in a book of this length, we have emphasized topics which we have found to be of particular interest to a advanced undergraduate and postgraduate biologists (or biogeographers) or those contemplating more detailed studies in particular areas. Consequently we have endeavoured to place lichen associations in the broader context of biological and biogeographical teaching. Examples are drawn from many areas of the world, including North America, but it is inevitable that European ones predominate, as lichens there are better known than in other regions. Technical terms are defined when first used, and definitions can therefore be located with the aid of the index. Lichens are not a systematic group and so are not appropriately treated in a groups-orientated programme, but are a major biological phenomenon all too commonly accorded scant attention in university courses.
Download or read book Lichens 3 written by Patrick Mccarthy and published by CSIRO PUBLISHING. This book was released on 2001 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides descriptions of some of the more robust and luxuriant lichens of cool-temperate south-eastern Australia (Lobariaceae and Sphaerophoraceae), as well as ecologically important soil-inhabiting groups in semi-arid and arid regions (Peltulaceae, Endocarpon and Placidium).
Download or read book Sustainable Urban Futures in Africa written by Michael Addaney and published by Routledge. This book was released on 2021-12-31 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable Urban Futures in Africa provides a variety of conventional and emerging theoretical frameworks to inform understandings and responses to critical urban development issues such as urbanisation, climate change, housing/slum, informality, urban sprawl, urban ecosystem services and urban poverty, among others, within the context of the sustainable development goals (SDGs) in Africa. This book addresses topics including challenges to spatial urban development, how spatial planning is delivered, how different urbanisation variables influence the development of different forms of urban systems and settlements in Africa, how city authorities could use old and new methods of land administration to produce sustainable urban spaces in Africa, and the role of local activism is causing important changes in the built environment. Chapters are written by a diverse range of African scholars and practitioners in urban planning and policy design, environmental science and policy, sociology, agriculture, natural resources management, environmental law, and politics. Urban Africa has huge resource potential – both human and natural resources – that can stimulate sustainable development when effectively harnessed. Sustainable Urban Futures in Africa provides support for the SDGs in urban Africa and will be of interest to students and researchers, professionals and policymakers, and readers of urban studies, spatial planning, geography, governance, and other social sciences.
