Refine
Year of publication
Document Type
- Article (65)
- Postprint (28)
- Conference Proceeding (1)
- Part of Periodical (1)
Is part of the Bibliography
- yes (95)
Keywords
- animal personality (18)
- Myodes glareolus (9)
- rodents (9)
- Microtus arvalis (7)
- light pollution (6)
- HIREC (5)
- biodiversity (5)
- giving-up density (5)
- common vole (4)
- exploratory-behavior (4)
- functional traits (4)
- landscape of fear (4)
- mobile links (4)
- optimal foraging (4)
- ALAN (3)
- Animal personality (3)
- Common vole (3)
- Interspecific interactions (3)
- Lepus europaeus (3)
- Rodents (3)
- Seasonality (3)
- activity (3)
- agricultural landscapes (3)
- coexistence (3)
- dispersal (3)
- disturbance (3)
- endozoochory (3)
- environmental change (3)
- individual differences (3)
- inter-individual differences (3)
- landscape diversity (3)
- plant diversity (3)
- predation risk (3)
- seed bank (3)
- seed dispersal (3)
- seed dispersal syndrome (3)
- solar powered light-emitting diode (3)
- species assembly (3)
- stopover (3)
- urbanization (3)
- wetland vegetation (3)
- AgroScapeLabs (2)
- Arvicolinae (2)
- Carabidae beetles (2)
- Emberiza (2)
- Germany (2)
- Illuminance (2)
- Interference (2)
- Life history (2)
- Movement ecology (2)
- Myodes voles (2)
- Nest predation (2)
- Nighttime illumination (2)
- Outdoor enclosure (2)
- POL (2)
- Puumala virus seroprevalence (2)
- Sexual conflict (2)
- Shrews (2)
- Small mammals (2)
- Sorex araneus (2)
- Space use (2)
- Voles (2)
- agriculture (2)
- animal cognition (2)
- anthropogenic environment (2)
- apodemus-agrarius (2)
- artificial light at night (ALAN) (2)
- automated radio telemetry (2)
- avian personalities (2)
- bank vole (2)
- bank voles (2)
- behavioral flexibility (2)
- behavioral type (2)
- bird migration (2)
- coping styles (2)
- costs (2)
- fitness (2)
- fitness consequences (2)
- habitat connectivity (2)
- habitat use (2)
- home range (2)
- individual variation (2)
- landscape (2)
- life‐history traits (2)
- male bank voles (2)
- maternal aggression (2)
- mitochondrial genome (2)
- mustelid predation (2)
- myodes-glareolus (2)
- natal dispersal (2)
- natural-selection (2)
- neophilia (2)
- neophobia (2)
- non-breeding (2)
- novelty (2)
- offspring-defense (2)
- outbreak (2)
- parentage (2)
- perceived predation risk (2)
- personality-traits (2)
- phenology (2)
- phylogeny (2)
- population dynamics (2)
- prairie vole (2)
- recognition (2)
- reproductive strategies (2)
- reproductive success (2)
- rural populations (2)
- seasonality (2)
- small mammals (2)
- social information (2)
- space use (2)
- stress (2)
- trade-offs (2)
- vole clethrionomys-glareolus (2)
- voles clethrionomys-glareolus (2)
- wildlife corridors (2)
- AES (1)
- Adolescence (1)
- Aggression (1)
- Agricultural intensification (1)
- Agricultural landscape (1)
- Animal personalities (1)
- Antipredator Behaviour (1)
- Artificial light (1)
- Artificial light at night (ALAN) (1)
- Avian Predation (1)
- Beech fructification (1)
- Behavioural adaptations (1)
- Behavioural type (1)
- Boldness (1)
- Breeding strategies (1)
- Burrow system (1)
- CAP (1)
- Carabidae (1)
- Chronic stress (1)
- Clethrionomys-Glareolus (1)
- Coexistence (1)
- Consistency (1)
- Coping styles (1)
- Counterstrategy (1)
- Dip test (1)
- Ecological niche (1)
- European bat species (1)
- European bats (1)
- European rabbit (1)
- Faecal corticosterone metabolites (1)
- Faecal glucocorticoid metabolites (1)
- Fagus-Sylvatica L (1)
- Familiarity (1)
- Food Patch (1)
- Forest edge (1)
- Functional bat group (1)
- Hantavirus infection (1)
- Harvest Rate (1)
- Hedgerow (1)
- High-throughput next-generation sequencing (1)
- Humans (1)
- Hymenolepis (1)
- Infanticide (1)
- Infanticide risk (1)
- Inter-individual differences (1)
- Interspecific interaction (1)
- Intraspecific competition (1)
- Kalahari (1)
- LED (1)
- Land use (1)
- Learning (1)
- Light pollution (1)
- Lyme-disease (1)
- MHC diversity (1)
- Menarche (1)
- Microtus agrestis (1)
- Migration (1)
- Morocco (1)
- Nephrorathia-Epidemica (1)
- Nest protection (1)
- Odour recognition (1)
- Optimal foraging (1)
- Oryctolagus cuniculus (1)
- Overgrazing (1)
- Pace-of-life (1)
- Personality (1)
- Phenotypic plasticity (1)
- Physiology (1)
- Plasticity (1)
- Pond (1)
- Population cycle (1)
- Population dynamics (1)
- Predation Risk (1)
- Puumala virus (1)
- Repeatability (1)
- Reproductive strategy (1)
- Risk taking (1)
- Rodent (1)
- Rodent populations (1)
- Russia (1)
- Selection (1)
- Sexual selection (1)
- Shrub encroachment (1)
- Small mammal (1)
- Stress (1)
- Stress response (1)
- Survival (1)
- Survival success (1)
- Wind turbines (1)
- Winter biology (1)
- aggression (1)
- animal personalities (1)
- associative learning (1)
- attraction-avoidance (1)
- behavioural adaptations (1)
- behavioural adjustment (1)
- behavioural flexibility (1)
- behavioural reaction norm (1)
- behavioural syndrome (1)
- behavioural type (1)
- biodiversity conservation (1)
- bird (1)
- boldness (1)
- breeding strategies (1)
- burrow system (1)
- cascading effects (1)
- climate change (1)
- community dynamics (1)
- competition (1)
- competitive performance (1)
- conservation (1)
- conservation scheme (1)
- consistency (1)
- corticosterone (1)
- dip test (1)
- early experience (1)
- ecosystem service (1)
- ecosystem services (1)
- european bat species (1)
- exploitation (1)
- faecal corticosterone metabolites (1)
- fast and slow learner (1)
- fat (1)
- field margins (1)
- field voles (1)
- fine-scale interactions (1)
- foraging behaviour (1)
- fuel (1)
- illuminance (1)
- individual based modeling (1)
- individual niche specialization (1)
- individual variability (1)
- infanticide (1)
- insectivores (1)
- insects (1)
- inter-specific interactions (1)
- interference (1)
- interspecific interactions (1)
- intra-specific trait variation (1)
- juvenile plasticity (1)
- landscape genetics (1)
- life history (1)
- life-history traits (1)
- light spectrum (1)
- long distance movement (1)
- migration (1)
- movement behaviour (1)
- movement ecology (1)
- multi-scale habitat modeling (1)
- nephropathia epidemica (1)
- nest predation (1)
- nest protection (1)
- nitrogen (1)
- nocturnal epigeal insect (1)
- occurrence estimates (1)
- olfactory (1)
- organic-carbon (1)
- pace-of-life (1)
- parasites (1)
- passerines (1)
- patch use (1)
- patch use; (1)
- personality (1)
- phenotypic plasticity (1)
- photoperiod (1)
- phototaxis (1)
- plasticity (1)
- pocket gophers (1)
- population (1)
- population cycles (1)
- priming (1)
- regression tree (1)
- renal-failure (1)
- repeatability (1)
- resource (1)
- risk allocation (1)
- risk-factors (1)
- rodent (1)
- seasonal environment (1)
- sexual conflict (1)
- sexual selection (1)
- shrews (1)
- site (1)
- small mammalian herbivores (1)
- social environment (1)
- species coexistence (1)
- spectral irradiance (1)
- speed-accuracy trade-off (1)
- step-selection function (1)
- stress response (1)
- survival (1)
- temperament (1)
- temporal dynamics (1)
- voles (1)
- white light (1)
- winter biology (1)
Seed traits matter
(2021)
Although many plants are dispersed by wind and seeds can travel long distances across unsuitable matrix areas, a large proportion relies on co-evolved zoochorous seed dispersal to connect populations in isolated habitat islands. Particularly in agricultural landscapes, where remaining habitat patches are often very small and highly isolated, mobile linkers as zoochorous seed dispersers are critical for the population dynamics of numerous plant species. However, knowledge about the quali- or quantification of such mobile link processes, especially in agricultural landscapes, is still limited. In a controlled feeding experiment, we recorded the seed intake and germination success after complete digestion by the European brown hare (Lepus europaeus) and explored its mobile link potential as an endozoochoric seed disperser. Utilizing a suite of common, rare, and potentially invasive plant species, we disentangled the effects of seed morphological traits on germination success while controlling for phylogenetic relatedness. Further, we measured the landscape connectivity via hares in two contrasting agricultural landscapes (simple: few natural and semi-natural structures, large fields; complex: high amount of natural and semi-natural structures, small fields) using GPS-based movement data. With 34,710 seeds of 44 plant species fed, one of 200 seeds (0.51%) with seedlings of 33 species germinated from feces. Germination after complete digestion was positively related to denser seeds with comparatively small surface area and a relatively slender and elongated shape, suggesting that, for hares, the most critical seed characteristics for successful endozoochorous seed dispersal minimize exposure of the seed to the stomach and the associated digestive system. Furthermore, we could show that a hare's retention time is long enough to interconnect different habitats, especially grasslands and fields. Thus, besides other seed dispersal mechanisms, this most likely allows hares to act as effective mobile linkers contributing to ecosystem stability in times of agricultural intensification, not only in complex but also in simple landscapes.
Seed traits matter
(2021)
Although many plants are dispersed by wind and seeds can travel long distances across unsuitable matrix areas, a large proportion relies on co-evolved zoochorous seed dispersal to connect populations in isolated habitat islands. Particularly in agricultural landscapes, where remaining habitat patches are often very small and highly isolated, mobile linkers as zoochorous seed dispersers are critical for the population dynamics of numerous plant species. However, knowledge about the quali- or quantification of such mobile link processes, especially in agricultural landscapes, is still limited. In a controlled feeding experiment, we recorded the seed intake and germination success after complete digestion by the European brown hare (Lepus europaeus) and explored its mobile link potential as an endozoochoric seed disperser. Utilizing a suite of common, rare, and potentially invasive plant species, we disentangled the effects of seed morphological traits on germination success while controlling for phylogenetic relatedness. Further, we measured the landscape connectivity via hares in two contrasting agricultural landscapes (simple: few natural and semi-natural structures, large fields; complex: high amount of natural and semi-natural structures, small fields) using GPS-based movement data. With 34,710 seeds of 44 plant species fed, one of 200 seeds (0.51%) with seedlings of 33 species germinated from feces. Germination after complete digestion was positively related to denser seeds with comparatively small surface area and a relatively slender and elongated shape, suggesting that, for hares, the most critical seed characteristics for successful endozoochorous seed dispersal minimize exposure of the seed to the stomach and the associated digestive system. Furthermore, we could show that a hare's retention time is long enough to interconnect different habitats, especially grasslands and fields. Thus, besides other seed dispersal mechanisms, this most likely allows hares to act as effective mobile linkers contributing to ecosystem stability in times of agricultural intensification, not only in complex but also in simple landscapes.
Seed traits matter
(2021)
Although many plants are dispersed by wind and seeds can travel long distances across unsuitable matrix areas, a large proportion relies on co-evolved zoochorous seed dispersal to connect populations in isolated habitat islands. Particularly in agricultural landscapes, where remaining habitat patches are often very small and highly isolated, mobile linkers as zoochorous seed dispersers are critical for the population dynamics of numerous plant species. However, knowledge about the quali- or quantification of such mobile link processes, especially in agricultural landscapes, is still limited. In a controlled feeding experiment, we recorded the seed intake and germination success after complete digestion by the European brown hare (Lepus europaeus) and explored its mobile link potential as an endozoochoric seed disperser. Utilizing a suite of common, rare, and potentially invasive plant species, we disentangled the effects of seed morphological traits on germination success while controlling for phylogenetic relatedness. Further, we measured the landscape connectivity via hares in two contrasting agricultural landscapes (simple: few natural and semi-natural structures, large fields; complex: high amount of natural and semi-natural structures, small fields) using GPS-based movement data. With 34,710 seeds of 44 plant species fed, one of 200 seeds (0.51%) with seedlings of 33 species germinated from feces. Germination after complete digestion was positively related to denser seeds with comparatively small surface area and a relatively slender and elongated shape, suggesting that, for hares, the most critical seed characteristics for successful endozoochorous seed dispersal minimize exposure of the seed to the stomach and the associated digestive system. Furthermore, we could show that a hare's retention time is long enough to interconnect different habitats, especially grasslands and fields. Thus, besides other seed dispersal mechanisms, this most likely allows hares to act as effective mobile linkers contributing to ecosystem stability in times of agricultural intensification, not only in complex but also in simple landscapes.
Bioturbation contributes to soil formation and ecosystem functioning. With respect to the active transport of matter by voles, bioturbation may be considered as a very dynamic process among those shaping soil formation and biogeochemistry. The present study aimed at characterizing and quantifying the effects of bioturbation by voles on soil water relations and carbon and nitrogen stocks. Bioturbation effects were examined based on a field set up in a luvic arenosol comprising of eight 50 x 50 m enclosures with greatly different numbers of common vole (Microtus arvalis L., ca. 35-150 individuals ha(-1) mth(-1)). Eleven key soil variables were analyzed: bulk density, infiltration rate, saturated hydraulic conductivity, water holding capacity, contents of soil organic carbon (SOC) and total nitrogen (N), CO2 emission potential, C/N ratio, the stable isotopic signatures of C-13 and N-15, and pH. The highest vole densities were hypothesized to cause significant changes in some variables within 21 months. Results showed that land history had still a major influence, as eight key variables displayed an additional or sole influence of topography. However, the delta N-15 at depths of 10-20 and 20-30 cm decreased and increased with increasing vole numbers, respectively. Also the CO2 emission potential from soil collected at a depth of 15-30 cm decreased and the C/N ratio at 5-10 cm depth narrowed with increasing vole numbers. These variables indicated the first influence of voles on the respective mineralization processes in some soil layers. Tendencies of vole activity homogenizing SOC and N contents across layers were not significant. The results of the other seven key variables did not confirm significant effects of voles. Thus overall, we found mainly a first response of variables that are indicative for changes in biogeochemical dynamics but not yet of those representing changes in pools.
According to Dooge (1986) intermediate-scale catchments are systems of organized complexity, being too organized and yet too small to be characterized on a statistical/conceptual basis, but too large and too heterogeneous to be characterized in a deterministic manner. A key requirement for building structurally adequate models precisely for this intermediate scale is a better understanding of how different forms of spatial organization affect storage and release of water and energy. Here, we propose that a combination of the concept of hydrological response units (HRUs) and thermodynamics offers several helpful and partly novel perspectives for gaining this improved understanding. Our key idea is to define functional similarity based on similarity of the terrestrial controls of gradients and resistance terms controlling the land surface energy balance, rainfall runoff transformation, and groundwater storage and release. This might imply that functional similarity with respect to these specific forms of water release emerges at different scales, namely the small field scale, the hillslope, and the catchment scale. We thus propose three different types of "functional units" - specialized HRUs, so to speak - which behave similarly with respect to one specific form of water release and with a characteristic extent equal to one of those three scale levels. We furthermore discuss an experimental strategy based on exemplary learning and replicate experiments to identify and delineate these functional units, and as a promising strategy for characterizing the interplay and organization of water and energy fluxes across scales. We believe the thermodynamic perspective to be well suited to unmask equifinality as inherent in the equations governing water, momentum, and energy fluxes: this is because several combinations of gradients and resistance terms yield the same mass or energy flux and the terrestrial controls of gradients and resistance terms are largely independent. We propose that structurally adequate models at this scale should consequently disentangle driving gradients and resistance terms, because this optionally allow sequifinality to be partly reduced by including available observations, e. g., on driving gradients. Most importantly, the thermodynamic perspective yields an energy-centered perspective on rainfall-runoff transformation and evapotranspiration, including fundamental limits for energy fluxes associated with these processes. This might additionally reduce equifinality and opens up opportunities for testing thermodynamic optimality principles within independent predictions of rainfall-runoff or land surface energy exchange. This is pivotal to finding out whether or not spatial organization in catchments is in accordance with a fundamental organizing principle.