A5051399517- Ecology and Vegetation Dynamics Studies
- Plant and animal studies
- Species Distribution and Climate Change
- Forest Ecology and Biodiversity Studies
- Land Use and Ecosystem Services
- Environmental DNA in Biodiversity Studies
- Mycorrhizal Fungi and Plant Interactions
- Insect and Pesticide Research
- Insect and Arachnid Ecology and Behavior
- Insect-Plant Interactions and Control
- Wildlife Ecology and Conservation
- Remote Sensing and LiDAR Applications
- Environmental Conservation and Management
- Forest Insect Ecology and Management
- Agroforestry and silvopastoral systems
- Animal Ecology and Behavior Studies
- Fire effects on ecosystems
- Forensic Entomology and Diptera Studies
- Lichen and fungal ecology
- Forest ecology and management
- Animal and Plant Science Education
- Remote Sensing in Agriculture
- Wildlife-Road Interactions and Conservation
- Plant Parasitism and Resistance
- Weed Control and Herbicide Applications
Technical University of Munich
2021-2023
Abstract Recently reported insect declines have raised both political and social concern. Although the been attributed to land use climate change, supporting evidence suffers from low taxonomic resolution, short time series, a focus on local scales, collinearity of identified drivers. In this study, we conducted systematic assessment populations in southern Germany, which showed that differences biomass richness are highly context dependent. We found largest difference between semi-natural...
Changes in climate and land use are major threats to pollinating insects, an essential functional group. Here, we unravel the largely unknown interactive effects of both on seven pollinator taxa using a multiscale space-for-time approach across large land-use gradients temperate region. Pollinator community composition, regional gamma diversity, dissimilarity (beta diversity) were shaped by climate-land-use interactions, while local alpha diversity was solely explained their additive...
Arthropods respond to vegetation in multiple ways since plants provide habitat and food resources indicate local abiotic conditions. However, the relative importance of these factors for arthropod assemblages is less well understood. We aimed disentangle effects plant species composition environmental drivers on taxonomic assess which aspects contribute relationships between assemblages. In a multi-scale field study Southern Germany, we sampled vascular terrestrial arthropods typical...
The massive declines in terrestrial arthropods reported across Europe call for effective methods to monitor and promote biodiversity human-dominated landscapes. Previous studies vary their support the suitability of plants as indicators arthropod diversity, while potential subsets conservation-relevant plant species estimate richness remains be tested. Moreover, relative importance compared other factors driving richness, such land-use intensity, habitat amount landscape configuration, is...
Abstract Climate and land‐use change are key drivers of environmental degradation in the Anthropocene, but too little is known about their interactive effects on biodiversity ecosystem services. Long‐term data trends currently lacking. Furthermore, previous ecological studies have rarely considered climate land use a joint design, did not achieve variable independence or lost statistical power by covering full range gradients. Here, we introduce multi‐scale space‐for‐time study design to...
Abstract Land-use intensification and climate change threaten ecosystem functions. A fundamental, yet often overlooked, function is decomposition of necromass. The direct indirect anthropogenic effects on decomposition, however, are poorly understood. We measured two contrasting types necromass, rat carrion bison dung, 179 study sites in Central Europe across an elevational gradient 168–1122 m a.s.l. within both local regional land uses. Local land-use included forest, grassland, arable...
Climate and land use are major determinants of biodiversity, declines in species richness cold human exploited landscapes can be caused by lower rates biotic interactions. Deadwood fungi bacteria interact strongly with their hosts due to long‐lasting evolutionary trajectories. However, how interactions (specialization) change temperature land‐use intensity unknown for both microbial groups. We hypothesize a decrease specialization communities decreasing increasing while controlling...
Higher temperatures can increase metabolic rates and carbon demands of invertebrate herbivores, which may shift leaf-chewing herbivory among plant functional groups differing in C:N (carbon:nitrogen) ratios. Biotic factors influencing herbivore species richness modulate these temperature effects. Yet, systematic studies comparing different habitats landscapes along gradients are lacking. This study was conducted on 80 plots covering large temperature, land use Bavaria, Germany. We...
Contemporary climate change leads to earlier spring phenological events in Europe. In forests, which overstory strongly regulates the microclimate beneath, it is not clear if further equally shifts timing of leaf unfolding for over- and understory main deciduous forest species, such as Fagus sylvatica L. (European beech). Furthermore, known yet how this vertical (mis)match—the difference between understory—affects remotely sensed satellite signal. To investigate this, we disentangled start...
Arthropod predators are important for ecosystem functioning by providing top-down regulation of insect herbivores. As predator communities and activity influenced biotic abiotic factors on different spatial scales, the strength ('arthropod predation') is also likely to vary. Understanding combined effects potential drivers arthropod predation urgently needed with regard anthropogenic climate land-use change. In a large-scale study, we recorded rates using artificial caterpillars 113 plots...
Summary Climate and land-use change are key drivers of environmental degradation in the Anthropocene, but too little is known about their interactive effects on biodiversity ecosystem services. Long-term data trends currently lacking. Furthermore, previous ecological studies have rarely considered climate land use a joint design, did not achieve variable independence or lost statistical power by covering full range gradients. Here, we introduce multi-scale space-for-time study design to...
European roe deer (Capreolus capreolus L.) are important given their economic, recreational and ecological value. However, uncontrolled numbers can result in negative impacts on forest regeneration agricultural crops, disease transmission occurrences of deer-vehicle collisions. Information the abundance distribution is needed for effective management. We combined distance sampling (DS) dung pellet groups with multiple variables to develop a density surface model (DSM) federal state Bavaria...
Urbanization and agricultural intensification are considered the main causes of recent insect decline in temperate Europe, while direct climate warming effects still ambiguous. Nonetheless, higher temperatures advance spring leaf emergence, which turn may directly or indirectly affect insects. We therefore investigated how Sentinel-2-derived start season (SOS) its spatial variability (SV-SOS) affected by temperature whether these green-up variables can explain biomass richness across a...
Abstract Dung beetles are important actors in the self‐regulation of ecosystems by driving nutrient cycling, bioturbation, and pest suppression. Urbanization sprawl agricultural areas, however, destroy natural habitats may threaten dung beetle diversity. In addition, climate change cause shifts geographical distribution community composition. We used a space‐for‐time approach to test effects land use on α‐diversity, local specialization ( H 2 ′) resources, γ‐diversity dung‐visiting beetles....
Abstract Global warming can increase insect pest pressure by enhancing reproductive rates. Whether this translates into yield losses depends on phenological synchronisation of pests with their host plants and natural enemies. Simultaneously, landscape composition may mitigate climate effects shaping the resource availability for antagonists. Here, we study combined temperature abundances, larval parasitism, crop damage yield, while also considering phenology, to identify strategies...
Abstract Interactions between plants and herbivorous invertebrates drive the nutritional quality of resources for higher trophic levels, nutrient cycling plant-community structure. Thereby, shifts in functional composition plant communities particularly impact ecosystem processes. However, current understanding herbivory is limited concerning climate, land use richness, as comparative studies different groups are lacking. This study was conducted on 81 plots covering large climatic land-use...
<p>Using RGB camera data (e.g. webcams, wildlife cameras) has great potential to measure forest phenology over climate gradients, because of its very high temporal resolution, while at the same time being more objective and less consuming than in situ observations. To make images useful for purpose measuring phenological events, such as Start Season (SOS) End (EOS), there is need derive Regions Interest (ROI) objectively (semi-)automatically. In order answer this need, Bothmann...
Abstract Arthropod predators are important for ecosystem functioning by providing top-down regulation of insect herbivores. As predator communities and activity influenced biotic abiotic factors on different spatial scales, the strength (‘arthropod predation’) is also likely to vary. Understanding combined effects potential drivers arthropod predation urgently needed with regard anthropogenic climate land-use change. In a large-scale study, we recorded rates using artificial caterpillars 113...