A5008126815- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Species Distribution and Climate Change
- Physiological and biochemical adaptations
- Animal Ecology and Behavior Studies
- Isotope Analysis in Ecology
- Evolutionary Game Theory and Cooperation
- Evolution and Genetic Dynamics
- Wildlife Ecology and Conservation
- Insect and Arachnid Ecology and Behavior
- Animal Behavior and Reproduction
- Fish Ecology and Management Studies
- Ecosystem dynamics and resilience
- Sustainability and Ecological Systems Analysis
- Conservation, Biodiversity, and Resource Management
- Invertebrate Taxonomy and Ecology
- Mathematical and Theoretical Epidemiology and Ecology Models
- Marine and fisheries research
- Land Use and Ecosystem Services
- Oil Palm Production and Sustainability
- Impact of Light on Environment and Health
- Forest Ecology and Biodiversity Studies
- Aquatic Invertebrate Ecology and Behavior
- Rangeland and Wildlife Management
- Forest ecology and management
German Centre for Integrative Biodiversity Research
2016-2025
Friedrich Schiller University Jena
2016-2025
Institute for Biodiversity
2020
John Wiley & Sons (United States)
2017-2019
Ecological Society of America
2017-2019
University of Göttingen
2010-2017
Ulrich Medical (Germany)
2012
Google (United States)
2012
Technical University of Darmstadt
2004-2011
Institute of Zoology
2011
Abstract Aim In a selected literature survey we reviewed studies on the habitat heterogeneity–animal species diversity relationship and evaluated whether there are uncertainties biases in its empirical support. Location World‐wide. Methods We 85 publications for period 1960–2003. screened each publication terms that were used to define heterogeneity, animal group ecosystem studied, definition of structural variable, measurement vegetation structure temporal spatial scale study. Main...
Abstract Land-use transitions can enhance the livelihoods of smallholder farmers but potential economic-ecological trade-offs remain poorly understood. Here, we present an interdisciplinary study environmental, social and economic consequences land-use in a tropical landscape on Sumatra, Indonesia. We find widespread biodiversity-profit resulting from forest agroforestry systems to rubber oil palm monocultures, for 26,894 aboveground belowground species whole-ecosystem multidiversity....
It has been suggested that differences in body size between consumer and resource species may have important implications for interaction strengths, population dynamics, eventually food web structure, function, evolution. Still, the general distribution of consumer–resource body-size ratios real ecosystems, whether they vary systematically among habitats or broad taxonomic groups, is poorly understood. Using a unique global database on sizes, we show mean aquatic herbivorous detritivorous...
Knowledge of feeding rates is the basis to understand interaction strength and subsequently stability ecosystems biodiversity. Feeding rates, as all biological depend on consumer resource body masses environmental temperature. Despite five decades research functional responses quantitative models a unifying framework how they scale with temperature still lacking. This perplexing, considering that (i.e. strengths) crucially important for simple consumer–resource systems persistence,...
Abstract Warming could strongly stabilize or destabilize populations and food webs by changing the interaction strengths between predators their prey. Predicting consequences of warming requires understanding how temperature affects ingestion (energy gain) metabolism loss). Here, we studied dependence in laboratory experiments with terrestrial arthropods (beetles spiders). From this data, calculated efficiencies (ingestion/metabolism) per capita short long term. Additionally, investigated if...
The number of species in an area is critical to the development evolutionary and ecological theory from mass extinctions island biogeography. Still, factors influencing accuracy estimators richness are poorly understood. We explored these by simulating landscapes that varied richness, relative abundances, spatial distribution. compared extrapolations nine nonparametric two accumulation curves under three sampling intensities. Community evenness species' intensity, level true significantly...
Organisms eating each other are only one of many types well documented and important interactions among species. Other such include habitat modification, predator interference facilitation. However, ecological network research has been typically limited to either pure food webs or networks a few (<3) interaction types. The great diversity non-trophic observed in nature poorly addressed by ecologists largely excluded from theory. Herein, we propose conceptual framework that organises this...
Abstract Our knowledge about land-use impacts on biodiversity and ecosystem functioning is mostly limited to single trophic levels, leaving us uncertain whole-community biodiversity-ecosystem relationships. We analyse consequences of the globally important transformation from tropical forests oil palm plantations. Species diversity, density biomass invertebrate communities suffer at least 45% decreases rainforest palm. Combining metabolic food-web theory, we calculate annual energy fluxes...
Soil organisms, including earthworms, are a key component of terrestrial ecosystems. However, little is known about their diversity, distribution, and the threats affecting them. We compiled global dataset sampled earthworm communities from 6928 sites in 57 countries as basis for predicting patterns abundance, biomass. found that local species richness abundance typically peaked at higher latitudes, displaying opposite to those observed aboveground organisms. high dissimilarity across...
Darwin's classic image of an “entangled bank” interdependencies among species has long suggested that it is difficult to predict how the loss one affects abundance others. We show for dynamical models realistically structured ecological networks in which pair-wise consumer-resource interactions allometrically scale ¾ power—as by metabolic theory—the effect losing on another can be predicted well simple functions variables easily observed nature. By systematically removing individual from 600...
Abstract 1. In community and population ecology, there is a chronic gap between the classic Eltonian ecology describing patterns in abundance body mass across species ecosystems more process oriented foraging addressing interactions quantitative dynamics. However, this dichotomy arbitrary, because also determines most traits affecting 2. review, allometric (body‐mass dependent) scaling of handling times attack rates are documented, whereas body‐mass effects on Hill exponents (varying...
Predictions on the consequences of rapidly increasing atmospheric CO2 levels and associated climate warming for population dynamics, ecological community structure ecosystem functioning depend mechanistic energetic models temperature effects populations their interactions. However, such approaches combining metabolic (energy loss organisms) feeding rates gain by remain a key, yet elusive, goal. Aiming to fill this void, we studied functional responses three differently sized, predatory...
Abstract Smallholder-dominated agricultural mosaic landscapes are highlighted as model production systems that deliver both economic and ecological goods in tropical landscapes, but trade-offs underlying current land-use dynamics poorly known. Here, using the most comprehensive quantification of change associated bundles ecosystem functions, services benefits to date, we show Indonesian smallholders predominantly choose farm portfolios with high productivity low value. The more profitable...
How multiple types of non‐trophic interactions map onto trophic networks in real communities remains largely unknown. We present the first effort, to our knowledge, describing a comprehensive ecological network that includes all known and diverse links among >100 coexisting species for marine rocky intertidal community central Chilean coast. Our results suggest exhibit highly nonrandom structures both alone with respect food web structure. The occurrence different interactions, relative...
The relationship between biodiversity and ecosystem functioning (BEF) its consequence for services has predominantly been studied by controlled, short-term small-scale experiments under standardized environmental conditions constant community compositions. However, changes in occur real-world ecosystems with varying environments a dynamic composition. In this theme issue, we present novel research on BEF such communities. contributions are organized three sections relationships (i)...
1. Functional responses quantify the per capita consumption rates of predators depending on prey density. The parameters these nonlinear interaction strength models were recently used as successful proxies for predicting population dynamics, food-web topology and stability. 2. This study addressed systematic effects predator body masses functional response handling time, instantaneous search coefficient (attack coefficient) a scaling exponent converting type II into III responses. To fully...