für 26.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray La investigación pretende definir el potencial del arbolado urbano en el secuestro y fijación de carbono en Ciudad de Guatemala, a través del manejo forestal urbano. El carbono secuestrado por la biomasa representó el 75% del carbono retenido, se ha adsorbido de la atmósfera 29,254.14 t CO2 lo cual contribuye a la mitigación de los cambios climáticos. De igual manera se definieron los costos e ingresos de un proyecto de servicio ambiental, presentando un VAN de Q 5,318,350.51 con TIR de 1.49 y una relación costo/ beneficio de 1.88 estableciéndose que el proyecto de servicios ambientales tiene más viabilidad por su valor de uso que por el almacenamiento de carbono. Finalmente la investigación propone una política de arbolado urbano con 4 líneas estrategias políticas: a) Fomento de Actividades de Silvicultura Urbana, b) Conservación del Arbolado Urbano, c) Implementación del Árboles Singulares y d) Desarrollo de Beneficios Múltiples. La inversión en el arbolado urbano permiten generar servicios adicionales a la población, y ser una fuente potencial de la mitigación del cambio climático en centros urbanos. ····· 103611301
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book, Lake and Groundwater: Phytoremedial Aspect is an out come of the direct field work done in Gorakhpur, a prominent city of India. Being a tropical city, the district Gorakhpur is also among the wet-land belts of India, locally called as Tarai Belt. As a result the water table is higher and also the city is rich in large water bodies. The field study consisted of the survey and analysis of groundwater and the quality analysis of the water in Rangarh lake, a prominent water body in the heart of the city. The macrophytic diversity of the lake has also been evaluated. Finally, the polluted water of the lake as well as that of the groundwater was subjected to phytoremediation. The findings have been documented by the means of thirteen chapters. The book is useful tool for all the scientists, research scholars and the field workers who are directly or indirectly involved in the field research regarding the water pollution and its remediation and also for those who are involved in the study of lentic system biodiversity. The book is also recommended to be must for the libraries of all the research organisations, Universities and the NGOs involved in the subject. ····· 103611074
für 71.91€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ocenka sostoqniq zelenyh nasazhdenij w krupnom gorode baziruetsq na dannyh dinamicheskogo mnogoletnego nablüdeniq za sostoqniem bolee 90000 rastenij na 500 kontrol`nyh ploschadkah, raspolozhennyh na wsej territorii Moskwy. Ob#ektami issledowanij qwilis` rasteniq w parkah, skwerah, sadah, bul`warah, dworah, w ulichnyh i magistral`nyh posadkah. Pri ocenke uchitywalis` dendrologicheskie, äntomofitopatologicheskie pokazateli sostoqniq rastenij, urowen` antropogennogo zagrqzneniq pochw, atmosfernogo wozduha i dr. Informacionno-analiticheskoe soprowozhdenie rabot osuschestwlqlos` s pomosch`ü original`noj awtomatizirowannoj informacionno-sprawochno-analiticheskoj sistemy. V rabotah prinqli uchastie uchenye i specialisty moskowskih NII i Glawnogo botanicheskogo sada im. N.V. Cicina RAN, moskowskih uniwersitetow i dr. ····· 103611061
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Lantana camara (L.), a highly aggressive exotic environmental weed in many countries, has significant adverse effects on biodiversity loss has the potential to interrupt the health and regeneration process of other plant species nearby decreasing germination, growth of seedlings,and biomass production.It was introduced into Ethiopia as an ornamental plant for its beautiful aromatic flowers. However, because of its prolific seed production and easy dispersal, it escaped cultivation and become a pest with serious dimensions (i.e. social, ecological and economic concerns)in the country. Is there a difference in spatial distribution, abundance, density and impact of L. camara on different land uses What is the perception of local community regarding this invasive weed on the environment What plant spp.on the study area are affected by the weed The research investigation will answer those above mentioned questions and recommend further studies or gabs to be done. ····· 103611034
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Land is the most fundamental natural resource that provides space and raw materials for various human activities. The livelihoods of the majority depend on this resource, especially for countries like Ethiopia where agriculture is the mainstay of the national economy. Land use systems are characterized by complex interactions between human decision makers and the natural environment. Hence, when the users of land decide to employ their land and its resources towards different purposes, land use change occurs. Land use change is believed to be a rapid process in Ethiopia in general and (agro-) pastoral production systems in particular. Likewise, the Somali Region has experienced dramatic land use change over the past several decades. The objective of the study is to describe major land use changes occurred in Kebribeyah district of Somali Region since 1960s, and explain the drivers of these changes. ····· 10361927
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray It has been recognised that captive primate groups should be housed in environments in which their welfare is not compromised where they can exhibit most of their natural social and behavioural characteristics. In order to design and maintain ideal captive environments for primates, it is important to incorporate applied animal behaviour and welfare research in the mandate of conservation breeding programmes in zoos. In this study, the behaviour of captive lion-tailed macaques in 18 Indian zoos was recorded to identify the factors that influence the behavioural repertoire of captive lion-tailed macaques. Behavioural sampling was carried out only during the day when visitors were present at the macaque enclosures. The results showed that stereotypic pacing was the most commonly exhibited behavioural abnormality. Abnormal behaviours were only exhibited by confiscated and zoo-born individuals but never by wild-caught and captive-reared animals. ····· 10361820
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ecotourism a sustainable form of land use contributes to environmental conservation as well as providing accrued socio-economic benefits to the indigenous people through the non-consumptive uses and indirect values of the natural biological resources. It is widely recognized as a tool for biodiversity conservation and can play an important role in managing the site for biodiversity conservation. The Sonadia Island has significant tourism potential as there are many features of interest at the site including globally significant species. The distribution of species varied in different sites of the study area. In Sonadia Island a total of 53 different plant species (both sand dune and mangrove ecosystems) were found. Study shows that potentiality of mangrove areas for ecotourism is high, especially for the sites which are accessible and located close to the existing resorts and hotels in Coz s Bazar. ····· 10361798
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This thesis is based on the following papers: Blanco S, Bécares E, Fernández-Aláez M 2008. Efficiency of top-down control depends on nutrient concentration in a shallow lake: a mesocosm study. Mar Freshwat Res 59: 922-930. Blanco S, Romo S, Villena MJ, 2004. Experimental study on the diet of mosquitofish (Gambusia holbrooki) under different ecological conditions in a shallow lake. Int Rev Hydrobiol 89: 250-262. Blanco S, Romo S, Villena MJ, Martínez S 2003. Fish communities and food web interactions in some shallow Mediterranean lakes. Hydrobiologia 506: 473-480 Blanco S, Romo R 2006. Ictiofauna del Lago de la Albufera de Valencia: evolución histórica y situación actual. Bol R Soc Esp Hist Nat Secc Biol 101: 45-56 Blanco S, Romo S, Fernández-Aláez M, Bécares E 2007. Response of epiphytic algae to nutrient loading and fish density in a shallow lake: a mesocosm experiment. Hydrobiologia 600: 65-76 ····· 10361679
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Predation is one of the commonest ecologial interactions in the natural world, and predators have attracted attention from all sort of naturalists, and then scientists, since time immemorial. However, the influence of predator prey relationships on the functioning of ecosystems remains largely unclear. The theoretical and empirical studies available to date are insufficient to provide comprehensive knowledge on the ecological consequences of predation, especially as the biological complexity increases. Predator prey studies are also of much interest for the conservation of prey, and particularly of predators, mainly due to the traditional, strongly unfounded conflict between them and game harvesting. This book, with its six main chapters, aspires to increase and stimulate current knowledge of predator prey relationships worldwide. For this purpose, the author takes advantage of the in-depth exploration based on either an ecological or a conservation approach of a typical Mediterranean vertebrate system. As a result, some old, controversial questions now find novel, science-based answers. ····· 10361549
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The camphor laurel tree (Cinnamomum camphora (L.) Nees & Eberm) was tested for allelopathic influence in studies of seed germination, seedling growth and soil algal populations of species identified in north-eastern New South Wales, Australia. This included an allelopathy glasshouse trial on germinating seed and soil algae, the development of a technique for field identification of the camphor laurel chemo-types, an application of the chemo-type differentiation technique in a field assessment of allepathic influence on seedling growth, and a review of the tree`s capability attributes providing a greater understanding of its role in plant succession. The findings indicate that camphor laurel does have a significant influence in altering plant succession. Therefore as the species expands its presence in the region, habitat change will also increase, placing further pressure or threat on both plant and animal communities. The work also suggests that there is need to seek a biological control, assess the trees` impact on leaf litter invertebrates and water quality, and to improve management of camphor laurel recruitment in forested areas. ····· 10361497
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The Mau Forest Complex has significant biological, environmental, and sociocultural roles, but is threatened with excisions for other land uses and degradation. This study was conducted between 2003 2007, to investigate the effects of human encroachment on the forest, and establish its resilience to the disturbance by comparing forest aspects at three levels of disturbance. Forest cover was analysed using satellite image data by supervised classification at two year intervals. Five forest cover types were identified closed canopy forest, plantation forests, bamboo dominated forest, forest bush and grassland. Ground data was collected at 12 month intervals using 50 circular (28 m radius) plots inconspicuously placed in the forest. Trees were classified into big trees (dbh 40 cm), small trees (dbh 2040 cm), poles (dbh 5 20 cm) and saplings (height 1.5 m, dbh 5cm). Forest composition was analysed by tree numbers, and importance values. Vertical forest structure was compared by inverse J curves. Transformed data was used to plot linear regression lines that were compared for gradient, y - intercept and correlation coefficient (R2). Horizontal forest structure was estimate ····· 10361161
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book focuses on Study of structure, composition, biomass and nutrient dynamics of a dry tropical forest ecosystem. Mapping of these parameters shall be highly helpful in determination of ecological functioning of such ecosystems and their restoration. The book focuses on the prevailing perspectives and prospects of landscape ecology across geographic and cultural boundaries. It covers the theory, methodology, and applications of community, structure and forest diversity. The chapters have in-depth discussions of the major achievements, and future directions in a series of important research topics in diversity and landscape ecology. Some of them explore holistic, interdisciplinary approaches and describe innovative applications of landscape ecology principles in conservation, management, planning, and design. To ensure the quality of the book, all chapters were peer-reviewed. We believe that this book will be of interest to a wide audience, including graduate students, academic professionals, and practitioners in forest ecology, environmental science, landscape planning and design, and resource management. ····· 10361151
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Evaluation of habitat and population is a prerequisite for formulating effective habitat management and population recovery interventions for sustainable conservation of endangered species. Mapping using GIS techniques and Landsat imageries is an effective method for habitat evaluation whilst modelling offers a powerful tool for understanding the species-habitat relationships and population dynamics. This book provides interventions for saving Kenya s roan antelope from extinction. It specifically answers six research questions: 1) what factors are threatening roan and other antelope populations in Ruma National Park (RNP) and how can these threats be mitigated 2) what sampling protocols and analytical methods are cost-effective and accurate for monitoring the roan s movement and distribution patterns 3) what features characterize a suitable habitat for the roan in different seasons 4) which are the most effective and accurate techniques for analyzing roan habitat selection 5) what are the most cost-effective management interventions for roan population recovery and 6) what factors influence the distribution of snares in RNP and how can poaching via snares be mitigated ····· 1036114· 1 · ::::: · 23 ·· 24 ·· 25 ·· 26 ·· 27 ·· 28 ·· 29 · ::::: · 30 ·
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