Browsing Fakultät für Biologie und Psychologie (inkl. GAUSS) by Advisor "Scheu, Stefan Prof. Dr."
Now showing items 1-20 of 21
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Soil food webs change with land use: basal resources, functional diversity and trophic niche breadth
(2024-09-06)The diversity and interactions of organisms, along with ecosystem functions and stability, are intricately linked to food webs. Among these, soil food webs have only been investigated relatively recently due to the small ... -
Community dynamics and trophic niches of soil fauna in Central European forests
(2024-09-06)Global change is altering the state of forest ecosystems, threatening their integrity. A number of studies have reported declines in aboveground arthropod diversity over the last decade and indicated management practices ... -
Effects of climate change and land use on the structure and function of earthworm communities
(2024-05-07)Human activity-induced global change is increasingly threatening biodiversity and composition of species assemblages worldwide, which reduces ecosystem resilience and provokes concerns about ecosystem functions. Over the ... -
Changes in Microbial Resources and Trophic Niches of Microarthropods in Forest Ecosystems with Elevation
(2024-03-27)Mountain forests play a major role for biodiversity conservation, carbon storage and hydrological cycling. Therefore, understanding different components of mountain forest ecosystems is essential to predict potential ... -
Diversity and Trophic Ecology of Arboreal Spider (Araneae) Assemblages along a Transformation Gradient from Lowland Rainforest to Oil Palm Plantations in Jambi Province, Sumatra, Indonesia
(2023-03-02)In chapter 2, I investigated the canopy spider abundance, biomass, richness and community composition across a land-use gradient from tropical lowland rainforest via jungle rubber to monocultures of rubber and oil palm. ... -
Ecological groups of Collembola in agroecosystems as affected by farm-based management practices
(2022-12-15)Present day agriculture is identified as a main threat to biodiversity. At the same time, the productivity of agricultural systems is relying on ecosystem services provided by biota. In order to conserve critical ecosystem ... -
The structure of coastal invertebrate communities and their temporal and spatial dynamics
(2022-11-22)The Wadden Sea is one of the largest tidal flats in the world, stretching across the coasts of the Netherlands, Germany and western Denmark. Along sheltered coastlines lie salt marshes which are essential habitats for a ... -
Response of Soil Microarthropods to Drought in Arable Fields
(2022-04-28)In the face of current as well as projected increased frequencies and severities of droughts the interest in responses of the belowground system to such profound changes in environmental conditions has risen. The heavily ... -
Spider food webs: influence of cropping cycle and landscape heterogeneity in Philippine rice ecosystems
(2022-04-14)Rice is the most important staple crop of the world, providing approximately 19% of the world population’s caloric uptake and being cultivated on 163 million ha. Rice provides food and income to an estimated 200 million ... -
Soil fauna in lowland rainforest and agricultural systems of Sumatra: Changes in community composition and trophic structure with focus on Collembola
(2022-02-17)Rainforest conversion to agricultural plantations such as rubber and oil palm in Indonesia is increasing in the last decades. In this thesis, I investigated effects of rainforest conversion to rubber and oil palm plantations ... -
Community structure and guild patterns of soil decomposers in pure and mixed forests of European beech, Norway spruce and Douglas fir
(2021-10-28)Anthropogenic global warming is creating new challenges for forest management in many parts of the world. One vital aspect is the choice of tree species and whether to cultivate monospecific or mixed timber plantations. ... -
The role of root-derived carbon in trophic interactions within soil food webs as indicated by analyses of stable isotope, lipids and amino acids in microarthropods (collembola)
(2021-07-12)A considerable amount of photosynthates is released into soil via living roots as rhizodeposits. This root-derived carbon (C) is an important source of energy and nutrients for microorganisms and higher trophic levels in ... -
The role of plant diversity, plant functional groups, and mineral nitrogen for soil microbial functioning and soil mesofauna in temperate grassland
(2021-03-16)Soil-derived ecosystem functions such as decomposition and element cycling are crucial for ecosystem services such as production of food, fodder and biofuels; in short, they are essential prerequisites for human and animal ... -
Impacts of leaf litter diversity and root resources on microorganisms and microarthropods (Acari, Collembola) during early stages of decomposition in tropical montane rainforest ecosystems
(2021-03-04)Soil organisms influence organic matter turnover and nutrient cycling via processing of organic matter entering the soil as litter and root-derived resources. Plant species differ enormously in the quality and quantity of ... -
No sex, No problem? Mutation accumulation in asexual animals
(2020-07-03)According to classical predictions, sex is beneficial because it allows for purging of slightly deleterious mutations via effective purifying selection. In asexual organisms mutational load increases over time, eventually ... -
Habitat selection, cryptic diversity, phylogeny, and phylogeography of the European Lepidocyrtus lanuginosus species group (Collembola: Entomobryidae)
(2019-02-12)Accurate species identification and assessment of species diversity are essential for studies on phylogeny and phylogeography, adaptation and ecological function. The development of molecular methods triggered the discovery ... -
Flooding in a grassland diversity experiment: response of microorganisms, microarthropods and predator prey interactions
(2018-06-26)Flooding frequency is predicted to increase during the next decades. This will need a better understanding of flood impacts on terrestrial ecosystems and the development of strategies to mitigate potential damage. Plant ... -
Fatty acid patterns of soil decomposers and predators as affected by plant species richness
(2018-05-24)Relationships between organisms in the soil are very important to control the equilibrium of an ecosystem. Many factors and conditions play a crucial role for the development and functioning of decomposers and predators, ... -
Altitude, litter quality and availability of root derived resources as determinants of decomposition processes and soil microarthropod community composition in tropical montane rainforests in Southern Ecuador
(2016-11-03)Decomposition processes in the high tropical Andes are complex and influenced by a variety of biotic and abiotic factors. Tropical montane rainforests of the high Andes harbour large stocks of dead organic material and ... -
Trophic structure of soil animal food webs of deciduous forests as analyzed by stable isotope labeling
(2016-10-26)Forest soil invertebrates are extremely diverse and form complex food webs. Trophic interactions are concealed from direct observation by the heterogeneous soil system and small size of soil invertebrates and their basal ...