A5072801200- Ecology and Vegetation Dynamics Studies
- Plant Diversity and Evolution
- Plant and animal studies
- African Botany and Ecology Studies
- Plant Parasitism and Resistance
- Plant and Biological Electrophysiology Studies
- Agriculture and Rural Development Research
- Plant Water Relations and Carbon Dynamics
- Fern and Epiphyte Biology
- Plant and Fungal Species Descriptions
- Conservation, Biodiversity, and Resource Management
- Species Distribution and Climate Change
- Biocrusts and Microbial Ecology
- Lichen and fungal ecology
- Botany, Ecology, and Taxonomy Studies
- Mediterranean and Iberian flora and fauna
- Botany and Plant Ecology Studies
- Tree-ring climate responses
- Botanical Research and Applications
- Wildlife Ecology and Conservation
- Aquatic Ecosystems and Phytoplankton Dynamics
- Marine and coastal plant biology
- Forest ecology and management
- Coastal wetland ecosystem dynamics
- Bryophyte Studies and Records
University of Rostock
2016-2025
Institute for Biodiversity
2000-2024
Institut für Forensische Genetik
2003
University of Bonn
1988-1998
Abstract: Nuclear holoploid genome sizes (C‐values) have been estimated to vary about 800‐fold in angiosperms, with the smallest established 1C‐value of 157 Mbp recorded Arabidopsis thaliana. In highly specialized carnivorous family Lentibulariaceae now three taxa found that exhibit significantly lower values: Genlisea margaretae 63 Mbp, G. aurea 64 and Utricularia gibba 88 Mbp. The mitotic anaphase chromatids 2.1 are thus bacterial size (NB: E. coli has ca. 4 Mbp). Several species range...
Mutualistic biotic interactions as among flowering plants and their animal pollinators are a key component of biodiversity. Pollination, especially by insects, is element in ecosystem functioning, hence constitutes an service global importance. Not only sexual reproduction ensured, but also yields stabilized genetic variability crops maintained, counteracting inbreeding depression facilitating system resilience. While experiencing rapid environmental change, there increased demand for food...
In Africa, protected areas can play an important role in mitigating the effects of climate change through carbon sequestration but they are threatened due to increasing land degradation and deforestation (LDD). The Total Wildlife Reserve Bontioli (TWRB) Burkina Faso is one country's refuges with high biodiversity. This reserve seriously by human activities, little information available about on-site causes extent. study was carried out investigate drivers extent LDD TWRB. Household surveys,...
Inselbergs occur as mostly dome‐shaped rock outcrops in all climatic and vegetational zones of the tropics. Consisting Precambrian granites gneisses, they form ancient stable landscape elements. Due to harsh edaphic microclimatic conditions, vegetation inselbergs differs markedly from those surroundings. Monocotyledonous mats one most characteristic communities this ecosystem. The floristic composition community was studied on six located Brazilian Atlantic rainforest. Dominating are...
Abstract: As a basis for analysing the evolution of carnivorous syndrome in Lentibulariaceae (Lamiales), phylogenetic reconstructions were conducted based on coding and non‐coding chloroplast DNA ( matK gene flanking trnK intron sequences, totalling about 2.4 kb). A dense taxon sampling including all other major lineages Lamiales was needed since closest relatives position “proto‐carnivores” unknown. Tree inference using maximum parsimony, likelihood, Bayesian approaches resulted fully...
Abstract Most tropical regions are facing historical difficulties of generating biologically reconstructed long‐term climate records. Dendrochronology (tree‐ring studies) is a powerful tool to develop high‐resolution and exactly dated proxies for reconstruction. Owing the seasonal variation in rainfall we expected formation annual tree rings wood West African species. In central‐western part Benin (upper Ouémé catchment, UOC) northeastern Ivory Coast (Comoé National Park, CNP) investigated...
Roots of 344 species 262 representative genera Orchidaceae have been examined under systematic aspects by light and scanning electron microscopy; the paper is illustrated 25 SEM‐photos schematic drawings. In particular stratification micromorphology rhizodermis (velamen radicum) exhibits a high diversity which can be applied taxonomically. Combinations root characters are classified into 12 syndromes (“types”). A particularly remarkable cortex structure (tracheoidal cortex) described term...
Over the last decades agroforestry parklands in Burkina Faso have come under increasing demographic as well climatic pressures, which are threatening indigenous tree species that contribute substantially to income generation and nutrition rural households. Analyzing threats vulnerability them is fundamental for priority setting conservation planning. Guided by literature local experts we selected 16 important food (Acacia macrostachya, Acacia senegal, Adansonia digitata, Annona senegalensis,...
In tropical West Africa, distribution patterns of forest islands in savannas are influenced by fires which occur regularly the grass stratum. Along continuous forest–savanna transects Comoé National Park, change amount and composition non-woody phytomass was investigated from savanna to interior. This correlated with cover vegetation strata above, soil depth, occurrence seasonal surface fires. Phytomass mainly consisted leaf litter forests (about 400 g m−2 at end rainy season, about 600 dry...
Abstract Nazinga Game Ranch (NGR) is a reserve in Burkina Faso involving local communities for securing biodiversity through sustainable management. Yet, its ecosystems are threatened by increasing number of elephants and illegal human activities. Renowned as model wildlife participatory management, NGR has mainly been studied animal only. The aim this study was to uncover ecological effects recent land management on savanna habitats including tourism, conclude more options, use/land cover...
The vegetation of small granitic rock outcrops (geomorphologically small‐sized inselbergs) which do not reach the canopy was studied in Taı rain forest (southwestern Ivory Coast) under aspects species diversity and phytogeographical affinities. Rock form edaphically arid (due to absent or very sparse soil cover) microclimatologically xeric (i.e. low air humidity, temperature regularly exceeding 50°C) islands with cryptogamic crusts, succulents poikilohydric vascular plants as characteristic...