Browsing Naturwissenschaften, Mathematik und Informatik by Referee "Gerold, Gerhard Prof. Dr."
Now showing items 21-40 of 45
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GROWTH AND STRUCTURAL DAMAGES OF TREES HOSTING LIANAS IN SEMI-EVERGREEN TROPICAL FORESTS IN NORTHEASTERN YUCATAN PENINSULA (MEXICO)
(2009-07-22)Lianas (woody vines) climb upon trees and vigorously colonize abandoned crops, forest edges and tree-fall-gaps produced by logging and strong winds. Consequently, lianas are common in places ... -
Remotely Sensed Data Fusion as a Basis for Environmental Studies: Concepts, Techniques and Applications
(2008-12-01)Following the dramatic qualitative and quantitative developments of remote sensing systems and digital imaging technologies, numerous kinds of images have been captured, processed and ... -
Bryophyte and macrolichen diversity of the Purdiaea nutans forest in southern Ecuador and its relationship to soil, climate and vegetation structure
(2008-10-02)This study confirms that the unique Purdiaea nutans forest in the upper montane belt of the Reserva Biologíca San Francisco in southern Ecuador is an azonal ridge vegetation type. Our ... -
USE OF GIS MODELLING IN ASSESSMENT OF FORESTRY LAND'S POTENTIAL IN THUA THIEN HUE PROVINCE OF CENTRAL VIETNAM
(2008-07-22)Land suitability assessment is a prerequisite for sustainable forestry production. It involves simultaneous consideration of geo-morphological and ecological factors and environmental and socio-economic aspect ... -
Late Quaternary vegetation, climate and fire dynamics in the Podocarpus National Park region, southeastern Ecuadorian Andes
(2008-06-26)In order to study the stability and dynamics of highly biodiverse mountain rain forest and paramo ecosystems, the late Pleistocene and Holocene climate and fire variability as well as ... -
Remote sensing study on vegetation dynamics in drylands of Kazakhstan
(2007-10-08)The present work is the first study on the dynamics of drylands in Kazakhstan which investigated the problem from different views and combined analyses at multiple time- and spatial scales. ... -
Diversity and evolution of pteridophytes, with emphasis on the Neotropics
(2007-09-19)Pteridophytes, understood as taxonomic group containing ferns, horsetails, and clubmosses, are especially diverse and abundant in the tropical mountain ranges of South America. My work ... -
Atmospheric Variability in Sulawesi, Indonesia
(2006-12-20)This dissertation discusses the modelling of atmosphere parameters on Sulawesi Island, Indonesia using different atmospheric models. The main character of climate in Central Sulawesi is a ... -
Molecular phylogeny and morphological reconstructions of Plagiochilaceae (Jungermanniopsida) with hypotheses on biogeography and divergence times
(2006-10-30)Plagiochilaceae are one of the largest families of leafy liverworts, with an estimated species number of about 500, the magnitude of them placed in the genus Plagiochila. Members of the ... -
Exploiting the Spatial Information in High Resolution Satellite Data and Utilising Multi-Source Data for Tropical Mountain Forest and Land Cover Mapping
(2006-06-29)This study investigates methods for the automatic mapping of tropical mountain forests and other land cover types using the spatial information in high resolution satellite data. The results ... -
Hypsometrischer Klima- und Bodenwandel in Bergregenwaldökosystemen Boliviens
(2006-05-02)The altitudinal change of soils, climate and litter in Bolivian tropical montane rainforest ecosystems was investigated to examine the relation between the distribution of vegetation and ... -
Factors controlling the lower elevational limits in tropical montane plants in the Andes and their implications under the current climatic change
(2006-01-31)To date all experimental approaches on the mechanisms that determine the lower elevational limits of plants have been carried out in temperate regions. Despite of the concrete and relevant ... -
Manganese as a site factor for epiphytic lichens
(2005-09-12)The effect of Mn on the viability of the epiphytic lichens, with special reference to Hypogymnia physodes, was studied. In Chapter 1 a general introduction to metal adsorption and toxicity in lichens is presented. Chapter ... -
Changes in tropical rainforests landscapes as a consequence of selective logging and indigenous shifting cultivation in Forest Reserve Imataca (central zone) Bolívar State, Venezuela.
(2005-07-27)The degradation process of tropical land forests caused by traditional indigenous agriculture and commercial logging was evaluated in the central sector of the Forest Reserve Imataca in the ... -
Mammal conservation status and prospects for community-based wildlife management in coastal Guinea-Bissau, West Africa
(2005-07-12)In Guinea-Bissau, wildlife species in general and mammals in particular are suffering increasing pressure, mainly from overhunting and habitat reduction and fragmentation. The lack of ... -
Probleme und Lösungsansätze des Grundwassermonitorings nach EU-Wasserrahmenrichtlinie
(2005-07-05)With the long-term target to reach a good water condition , the European Water Framework Directive (WFD) states regulations for the human usage of water resources. The legal regulations ... -
Kulturlandschaftswandel während des 20. Jh. in Zentralsulawesi - eine historisch-geographische Analyse der Lore-Lindu-Bergregenwaldregion
(2005-05-27)The focus of this dissertation is on an empirical qualitative analysis of the historical changes in the (wo)man-environment interaction in an ecologically sensitive rainforest margin area ... -
Determinants of Income Generating Activities of Rural Households
(2004-12-21)This study aims to identify and analyse the determinants of income generating activities of rural households in the vicinity of the Lore-Lindu National Park in Central Sulawesi, Indonesia. ... -
Einfluss der Landnutzung auf den Nährstoffhaushalt im Teileinzugsgebiet des Hana an der Grenze des Tai-Nationalparks (Côte d'Ivoire)
(2004-10-15)The present thesis is part of the project "Characterization of the nutrient budget in a catchment in Western Côte d'Ivoire. Development of a methodology for the objective evaluation of water ... -
Waldkonversion und Bodendegradation in Bergnebelwaldgebieten Guatemalas (Alta Verapaz)
(2003-11-28)Due to their number of ecological functions and endemic flora and fauna, the tropical montane cloud forests of Guatemala need to be protected. They were classified by the World Bank as ...