Dokumente Fakultät für Biologie und Psychologie (inkl. GAUSS) nach Gutachter "Bergmeier, Erwin Prof. Dr."
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The phosphorus and nitrogen nutrition of European beech under a future warmer and drier climate: climate chamber experiments and transect studies
(2023-03-13)Productivity of temperate forests may increasingly be limited by phosphorus (P) shortage, as indicated by decreasing P concentrations and increasing nitrogen (N):P ratios in leaves and fine roots and reports on recent ... -
The influence of temperature, nutrient availability and soil depth on root exudation in european beech forests
(2023-03-10)The availability of mineral nutrients (i.e. N, P) in unfertilized soils is often not adequate to meet plant demand, which in turn creates a necessity to fulfil the supply requirements from nutrient release from soil organic ... -
Vitality of heather (Calluna vulgaris) along gradients of climate, structure and diversity in dry lowland heathland habitats of Northern Germany
(2022-06-29)This thesis provides a fundamental overview to North German Dry lowland heathland vegetation composition, vegetation structures and the determinants for the vitality of the key species, Calluna vulgaris. It offers new ... -
Concepts, objectives and values in German forest conservation – a comparative analysis, an assessment of practicability and future prospects
(2022-04-21)The global biodiversity crisis is, along with climate change, the greatest challenge facing mankind. To ensure the long-term protection of biodiversity, conservation objectives must be agreed upon by all stakeholders, ... -
Plant community composition and biodiversity of irrigated rice ecosystems in Vietnam and the Philippines
(2021-11-26)Irrigated rice landscapes in tropical and subtropical Asia are complex agroecosystems that have evolved mostly from natural wetlands. Millennia of interaction between human communities and their surrounding ecosystems have ... -
Vegetation and fire history in Araucaria forest and Grasslands, Southern Brazil
(2021-06-18)Southern Brazil offers a great opportunity to analyse woodland and grassland mosaics, their pollen-vegetation relationships and its long-term vegetation and fire history. This research was carried out in two stages; first ... -
Studies on vegetation-, fire-, climate- and human history in the mid- to late Holocene - a contribution to protection and management of the forest-steppe-biome in the Mongolian Altai
(2020-09-10)In this thesis, several sedimentological archives from Altai Tavan Bogd National Park are studied to reconstruct the vegetation-, fire-, climate- and human history of the forest-steppe biome in the Mongolian Altai. The ... -
Holocene Vegetation and Disturbance Dynamics in the Araucaria araucana Forest: a paleoecological contribution for conservation
(2020-07-15)Climatic changes have changed the vegetation distribution in northern Patagonia over millennial time-scale; while, fire and volcanoes disturbance might play an important role in the vegetation dynamics, especially in the ... -
Holocene vegetation dynamics and disturbance regimes in north Patagonia Argentina (40°S)
(2020-07-14)Northern Patagonia in Argentina (40°S) offers a great opportunity to analyse the influence of volcanic ash deposition and fire on the vegetation composition. Here, three lakes located strategically along the forest-steppe ... -
The role of tree height and wood density for the water use, productivity and hydraulic architecture of tropical trees
(2020-06-24)Tropical forests are the world’s most productive terrestrial ecosystems and of central importance for global carbon and water cycles. Global climate projections predict increases in average temperature and an elevated ... -
Diversity, composition, and biogeography of trees in tropical mountain forests of Sulawesi, Indonesia
(2019-10-28)Human activities are increasingly threatening the integrity of Earth’s ecosystems. For successful conservation measures, one necessary prerequisite is an adequate level of understanding about the ecosystems and their ... -
Palaeoecological Evidence of Ecosystem Dynamics in Sumatra, Indonesia. Case Studies of Tropical Submountains and Mangroves
(2019-07-03)The mountain and mangrove ecosystems are an important component of Sumatra’s landscape. These highly diverse ecosystems provide numerous ecological services as well as socio-economic function, but they are also sensitive ... -
Late Quaternary vegetation, climate and ocean dynamics inferred from marine sediment cores off southeastern South America
(2018-09-04)Southeastern South America harbour highly diverse and species-rich ecosystems, such as the Atlantic rainforest, Araucaria forest and grasslands, which occur in a transitional zone from tropical to subtropical. This climatic ... -
Ecological analysis of large floristic and plant-sociological datasets – opportunities and limitations
(2018-05-07)This thesis comprises opportunities and limitations for the analysis of floristic and plant-sociological datasets and presents four related exemplary case studies. Woody plant species, their isolated metapopulations and ... -
Dendroecological investigations on subfossil mire pine woodland in northwest Germany
(2018-02-23)The present work is a dendrochronological investigation of peat-preserved pines (Pinus sylvestris) from northwest German mires (Fed. State of Lower Saxony). The project (DFG funded project LE 1805/2-2) continued the work ... -
Vegetation and functional diversity of sand dune habitats between and within different bioclimatic regions
(2017-08-08)Use of plant functional types has a long tradition in ecology from the time that von Humboldt offered the first physiognomic classification of plants based on growth form. In recent years, the application of functional ... -
Late quaternary vegetation and climate dynamics in western amazonia
(2017-04-11)The Amazon is a shelter for a huge variety of fauna and flora with the largest fluvial system and the highest diversity in the world. The biotic and abiotic factors of the floodplains serve to control the development and ... -
Long-term dynamics of tropical rainforests, climate, fire, human impact and land-use change in Indonesia
(2016-05-09)The research conducted and compiled in this thesis contributes to the knowledge of the long-term vegetation, climate and fire dynamics as well as human impact on montane and peat-swamp rainforests of Indonesia. We applied ... -
Biotoppflege mit Pferden
(2015-04-13)The aim of the research project was to study the vegetation and landscape changes in a grass-dominated nature reserve, under year-round extensive grazing with free-ranging horses. The project area (107 ha) is located at ... -
Vascular plant species richness at the landscape scale: Patterns and processes
(2015-02-27)The heterogeneous geographic distribution of species richness has fascinated and challenged biologists over centuries. As a result, a large number of possible hypotheses that aim at explaining these patterns have been ...