Browsing Naturwissenschaften, Mathematik und Informatik by Advisor "Wiegand, Kerstin Prof. Dr."
Now showing items 1-10 of 10
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Landscape Moderation of Ecological Patterns and Processes
(2025-02-25)This dissertation studies landscape moderation of ecological patterns and processes by employing different modeling approaches to investigate how landscape patterns influence ecological processes and, reversely, how ... -
Ecological modeling in two areas: species distribution modeling using commonness optimization and risk assessment for honeybees
(2024-07-09)Ecological systems are complex. Ecological models are simplified versions of ecological systems. Scientists use ecological models to better understand and manage ecological systems. I applied ecological models in two ... -
Modelling, management and restoration of savannas in southern Africa
(2022-05-10)Context - Bush encroachment has been observed in southern African savannas for several decades. This form of land degradation reduces the abundance of (palatable) grass biomass on farms, which in turn can support less ... -
Modelling plant trait variability in changing arid environments
(2020-11-03)Communities in arid environments are especially vulnerable to global change because they experience highly unpredictable environmental conditions. The fate of communities in an uncertain future may be elucidated by ... -
Analysing and modelling spatial patterns to infer the influence of environmental heterogeneity using point pattern analysis, individual-based simulation modelling and landscape metrics
(2020-05-11)One of the main goals of ecology is to understand processes underlying patterns. Because presumably all ecological processes are spatially explicit, especially spatial patterns can contain a lot of information about the ... -
Landscape-level assessment of ecological and socioeconomic functions of rainforest transformation systems in Sumatra (Indonesia)
(2020-03-20)Tropical landscapes have experienced drastic land-use change in recent decades. The transformation from natural vegetation to agricultural production systems has a variety of negative impacts on ecosystem functioning, ... -
Profiling plants to predict range dynamics under climate warming
(2019-09-11)Global climate warming affects species, ecosystems and entire biomes around the world. Shifts of range borders and distribution patterns along with changing climatic conditions were observed for many plant species. ... -
The role of heterogeneity in spatial plant population dynamics
(2017-10-23)Ecological theory names interacting mechanisms that allow competing species to coexist in limited available space, some of them are perceive as antagonistic. Most prominent are niche differentiation, heterogeneity and ... -
A Spatially Explicit Individual-Based Model of the Population Dynamics of the greenhouse whitefly (Trialeurodes vaporariorum), Encarsia formosa and tomato powdery mildew (Oidium neolycopersici) in Tomato Crops.
(2017-07-18)The greenhouse whitefly Trialeurodes vaporariorum – Westwood is one of the most important insect pests in crops. The spatial dynamics and population grow of the insects are affected by different biotic and abiotic factors ... -
Scales of bacterial interactions on the leaf surface
(2017-01-16)Microbial organisms are ubiquitous to habitats on Earth and they are important components in cycling of matter. This is true for the micro-scale and at global scale, and all spatial scales in between. In soils, aquatic ...