A5056969703- Ecology and Vegetation Dynamics Studies
- Ecosystem dynamics and resilience
- Species Distribution and Climate Change
- Biological Control of Invasive Species
- Evolution and Genetic Dynamics
- Sustainability and Ecological Systems Analysis
- Conservation, Biodiversity, and Resource Management
- Forest Insect Ecology and Management
- Plant and animal studies
- Marine and coastal ecosystems
- Advanced Measurement and Metrology Techniques
- Microbial Community Ecology and Physiology
- Data Quality and Management
- Aquatic Invertebrate Ecology and Behavior
- Economic and Environmental Valuation
- Protist diversity and phylogeny
- Forest Ecology and Biodiversity Studies
- Evolutionary Game Theory and Cooperation
- Forest Management and Policy
- Global Energy and Sustainability Research
- Scientific Computing and Data Management
- Geology and Paleoclimatology Research
- International Development and Aid
- Research Data Management Practices
- Advanced machining processes and optimization
University of Zurich
2018-2024
Stellenbosch University
2008-2015
Écologie, Systématique et Évolution
2014
Université Paris-Sud
2014
Federal Ministry of Defence
2009
University of Cape Town
2009
Helmholtz Centre for Environmental Research
1996
In 2010, the parties of Convention on Biological Diversity (CBD) adopted Strategic Plan for Biodiversity 2011–2020 with mission halting biodiversity loss and enhance benefits it provides to people. The 20 Aichi Targets (Aichi Targets), which are included in Plan, organized under five Goals, provide coherent guidance how achieve it. Halfway through is time prioritize actions order best possible outcomes 2020. Actions one target may influence other targets (downstream interactions); turn a be...
Sitas, N., Z. V. Harmáčková, J. A. Anticamara, Arneth, R. Badola, Biggs, Blanchard, L. Brotons, M. Cantele, K. Coetzer, DasGupta, E. Den Belder, S. Ghosh, Guisan, H. Gundimeda, Hamann, P. Harrison, Hashimoto, Hauck, B. Klatt, Kok, Krug, Niamir, O'Farrell, Okayasu, I. Palomo, Pereira, Riordan, F. Santos-Martín, O. Selomane, Y. Shin, and Valle Tobar. 2019. Exploring the usefulness of scenario archetypes in science-policy processes: experience across IPBES assessments. Ecology Society 24(3):35....
Abstract Aim Decision‐support models have considerable potential for guiding management strategies when problems are complex. The robustness of such decision‐making processes is rarely evaluated, and the influence decision criteria (or factors) in decisions seldom considered. We present a framework spatially‐explicit sensitivity analysis by using scheme developed to provide objective guidelines, form static priority maps, managing woody invasive alien plants (IAPs). Location Cape Floristic...
Determining the potential range of invasive alien species under current conditions is important. However, we also need to consider future distributions scenarios climate change and different management interventions when formulating effective long‐term intervention strategies. This paper combines niche modelling fine‐scale process‐based define regions at high risk invasion simulate likely dynamics landscape scale. Our study Schinus molle (Peruvian pepper tree; Anacardiaceae), a native...
Abstract Determining the geographical range of invasive species is an important component formulating effective management strategies. In absence detailed distributional data, distribution models can provide estimates invasion and increase our understanding ecological processes acting at various spatial scales. We used two complementary approaches to evaluate influence historical environmental factors in shaping Argentine ant ( Linepithema humile ), a widespread, highly native South America....
Abstract Sustainability is a key challenge for humanity in the context of complex and unprecedented global changes. Future Earth, an international research initiative aiming to advance sustainability science, has recently launched knowledge–action networks (KANs) as mechanisms delivering its strategy. The currently developing KAN on “natural assets” facilitate enable action-oriented synthesis towards natural assets sustainability. ‘Natural assets’ been adopted by Earth umbrella term...
We present a simple method for assessing the medium-term sustainability of different flower harvesting intensities (i.e. percentage number stems harvested per individual) two re-seeders and re-sprouters fynbos plants on Agulhas Plain in Cape Floristic Region, South Africa. interpret our results from an ecological point view, looking at impacts vegetative re-growth survival frequently species, economic determining cumulative year. analysed impact obligate re-seeding (Erica corifolia (L.)...
Abstract Accurate forecasts of ecological dynamics are critical for ecosystem management and conservation, yet the drivers forecastability poorly understood. Here we show that experiments a powerful (but underutilized) tool to explore limits forecasting. We conducted long-term microcosm experiment with aquatic protists manipulated two potential forecastability: biodiversity environmental change (light). applied data-driven forecasting methods finely-resolved time series species abundances...
Abstract Microxanox is an R package to simulate a three functional group ecosystem (cyanobacteria, phototrophic sulfur bacteria, and sulfate-reducing bacteria) with four chemical substrates (phosphorus, oxygen, reduced sulfur, oxidized sulfur) using set of ordinary differential equations. Simulations can be run individually or over parameter range, find stable states. The model implemented different numbers species per group. constructed in such way that the results contain input used, so...
Abstract Metadata plays an essential role in the long‐term preservation, reuse, and interoperability of data. Nevertheless, creating useful metadata can be sufficiently difficult weakly enough incentivized that many datasets may accompanied by little or no metadata. One key challenge is, therefore, how to make creation easier more valuable. We present a solution involves domain‐specific schemes are as complex necessary simple possible. These goals achieved co‐development between expert...
Biodiversity may increase ecosystem resilience. However, we have limited understanding if this holds true for ecosystems that respond to gradual environmental change with abrupt shifts an alternative state. We used a mathematical model of anoxic-oxic regime and explored how trait diversity in three groups bacteria influences found did not always resilience: greater two the increased but one group decreased resilience their preferred also simultaneous multiple often led reduced or erased...
introduced alien species. However, this is the first study on topic in South Africa and specifically Western Cape, where A. mellifera capensis Cape Honeybee endemic to region. De Hoop Nature Reserve Marine Protected Area was site we 24 managed hives (8 per replicate site) during winter season. We determined change insect guild abundance number of visits between three treatments namely before (control), after presence honeybee hives. Initial results suggest that do increase some abundances decrease
Microxanox is an R package to simulate a three functional group ecosystem (cyanobacteria, phototrophic sulfur bacteria, and sulfate-reducing bacteria) with four chemical substrates (phosphorus, oxygen, reduced sulfur, oxidized sulfur) using set of ordinary differential equations. Simulations can be run individually or over parameter range, find stable states. The model implemented different numbers species per group. constructed in such way that the results contain input used, so saved...
Microxanox is an R package to simulate a three functional group ecosystem (cyanobacteria, phototrophic sulfur bacteria, and sulfate-reducing bacteria) with four chemical substrates (phosphorus, oxygen, reduced sulfur, oxidized sulfur) using set of ordinary differential equations. Simulations can be run individually or over parameter range. The model implemented different numbers species per group. constructed in such way that the results contain input used, so saved loaded again simulation...