Karin Johst

ORCID: 0000-0003-0798-2361
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About
Contact & Profiles
Research Areas
  • Ecology and Vegetation Dynamics Studies
  • Plant and animal studies
  • Environmental Conservation and Management
  • Species Distribution and Climate Change
  • Economic and Environmental Valuation
  • Animal Ecology and Behavior Studies
  • Forest Management and Policy
  • Wildlife Ecology and Conservation
  • Ecosystem dynamics and resilience
  • Evolution and Genetic Dynamics
  • Marine Biology and Ecology Research
  • Avian ecology and behavior
  • Conservation, Biodiversity, and Resource Management
  • Land Use and Ecosystem Services
  • Microbial Community Ecology and Physiology
  • Mathematical and Theoretical Epidemiology and Ecology Models
  • Laser Design and Applications
  • Laser-induced spectroscopy and plasma
  • Genetic diversity and population structure
  • Plant Parasitism and Resistance
  • Animal Behavior and Reproduction
  • Marine and coastal plant biology
  • Laser-Matter Interactions and Applications
  • Slime Mold and Myxomycetes Research
  • Cephalopods and Marine Biology

Helmholtz Centre for Environmental Research
2012-2021

Google (United States)
1999-2010

Natural Environment Research Council
2007

University of Basel
1999

Institute for New Media
1986

Species associated with transient habitats need efficient dispersal strategies to ensure their regional survival. Using a spatially explicit metapopulation model, we studied the effect of range on persistence as function local population and landscape dynamics (including habitat patch destruction subsequent regeneration). Our results show that impact depends both growth. This is due interactions between patches populations via number potential dispersers. In general, long‐range had positive...

10.1034/j.1600-0706.2002.980208.x article EN Oikos 2002-08-01

There is an increasing recognition that evolutionary processes play a key role in determining the dynamics of range expansion. Recent work demonstrates neutral mutations arising near edge expansion sometimes surf on expanding front leading them rather than leads to reach much greater spatial distribution and frequency expected stationary populations. Here, we extend this examine surfing behavior nonneutral mutations. Using individual-based coupled-map lattice model, confirm that, regardless...

10.1093/molbev/msm167 article EN Molecular Biology and Evolution 2007-07-21

Summary Mowing influences two endangered butterfly species, Maculinea nausithous and teleius , directly through egg destruction larval mortality on the mown plants indirectly altering abundance of their sequential resources in meadows ( Sanguisorba for oviposition early development Myrmica ant nests later pupation). Although conservation biologists have argued that mowing during adult stage is detrimental to population persistence, it not obvious how timing frequency impact dynamics. A...

10.1111/j.1365-2664.2006.01125.x article EN Journal of Applied Ecology 2006-03-08

Significance It is currently unclear how biodiversity loss affects ecosystem functioning. The concept of functional redundancy implies that species compensated by other contributing similarly to Functional can be revealed the relationship between and functioning (e.g., biomass growth). an remains unaffected if redundant are removed but decreases have unique roles. Most research on biodiversity-ecosystem (BEF) relationships hitherto was restricted one single set environmental conditions....

10.1073/pnas.1505587112 article EN Proceedings of the National Academy of Sciences 2015-11-17

Recent theoretical studies have shown contrasting effects of temporal correlation environmental fluctuations (red noise) on the risk population extinction. It is still debated whether and under which conditions red noise increases or decreases extinction compared with uncorrelated (white) noise. Here, we explain opposing by introducing two features time series. On one hand, positive autocorrelation probability series poor conditions, implying increasing risk. other for a given period, at...

10.1086/503609 article EN The American Naturalist 2006-06-01

Eichhorn, M., K. Johst, R. Seppelt, and M. Drechsler. 2012. Model-based estimation of collision risks predatory birds with wind turbines. Ecology Society 17(2): 1. https://doi.org/10.5751/ES-04594-170201

10.5751/es-04594-170201 article EN cc-by Ecology and Society 2012-01-01

Abstract Population viability analyses (PVAs) contribute to conservation theory, policy, and management. Most PVAs focus on single species within a given landscape address specific problem. This specificity often is reflected in the organization of published PVA descriptions. Many lack structure, making them difficult understand, assess, repeat, or use for drawing generalizations across studies. In an assessment comparing existing guidelines, we found that model selection was rarely...

10.1111/cobi.12076 article EN Conservation Biology 2013-05-21

Agri‐environment schemes (AES) compensate farmers for land use measures that are costly to them but beneficial biodiversity and the environment. We present an ecological‐economic modeling procedure design of cost‐effective AES conserve grassland biodiversity, which is applicable large areas, covers many endangered species types, includes several hundred different types mowing regimes, grazing combinations regimes as measures. The also accounts spatial variations in measures' costs effects on...

10.1093/ajae/aav058 article EN American Journal of Agricultural Economics 2015-11-18

In the agricultural landscapes of Europe, White Stork (Ciconia ciconia) prefers to forage on meadows with short vegetation. Thus, food supply for nestlings and, consequently, breeding success this central-place forager depend temporal and spatial mowing activities farmers around nest generate a patchy dynamic availability. Using spatially explicit model, we study impact different land use patterns forager. The conclusions our model are twofold. First, Stork, suggests that sequential...

10.1890/1051-0761(2001)011[0060:fiapad]2.0.co;2 article EN Ecological Applications 2001-02-01

Summary 1. Many species are adapted to landscapes with characteristic dynamics generated by ongoing habitat destruction and creation. Climate change human land use, however, may the of these landscapes. Studies have repeatedly shown that many not able cope such changes in landscape dynamics. Conservation policies must, therefore, explicitly address this threat. The way which management should be modified when formerly static become dynamic or is unclear. 2. Using an analytical formula for...

10.1111/j.1365-2664.2011.02015.x article EN Journal of Applied Ecology 2011-05-31

The response of individual species to climate change may alter the composition and dynamics communities. Here, we show that impacts environmental on communities can depend nature interspecific interactions: mutualistic typically respond differently than commensalistic or parasitic We model analyse geographic range shifting metapopulations two interacting – a host an obligate species. Different types interactions are implemented by modifying local extinction rates according presence/absence...

10.1111/j.1600-0706.2012.20465.x article EN Oikos 2012-09-07

Based on experimental studies, two different fungus-mediated transport mechanisms have been suggested to facilitate the bacterial degradation of organic soil pollutants: bacteria may use liquid films around fungal hyphae for quick dispersal ('fungal highways'), and fungi take up translocate pollutants through their mycelial network pipelines'). Both are anticipated enhance bioavailability degrading bacteria. Using a microbial simulation model, we therefore investigated respective efficiency...

10.1111/1758-2229.12002 article EN Environmental Microbiology Reports 2012-09-30

In times of global change and intensified resource exploitation, advanced knowledge ecophysiological processes in natural engineered systems driven by complex microbial communities is crucial for both safeguarding environmental optimising rational control biotechnological processes.To gain such knowledge, high-throughput molecular techniques are routinely employed to investigate community composition dynamics within a wide range or environments.However, dataset analyses no consensus about...

10.1093/femsec/fiw209 article EN FEMS Microbiology Ecology 2016-10-08

Ensuring ecosystem resilience is an intuitive approach to safeguard the functioning of ecosystems and hence future provisioning services (ES). However, a multi‐faceted concept that difficult operationalize. Focusing on mechanisms, such as diversity, network architectures or adaptive capacity, has recently been suggested means operationalize resilience. Still, focus mechanisms not specific enough. We suggest conceptual framework, trinity, facilitate management based in three distinctive...

10.1111/oik.07213 article EN cc-by Oikos 2020-01-13

The survival of species in dynamic landscapes (characterised by patch destruction and subsequent regeneration) depends on both the species’ attributes disturbance pattern. Using a spatially explicit model we explored how mean time to extinction metapopulation spatial correlation relation population growth dispersal abilities species. Two contrasting answers are possible. On one hand, increasing increases this is known decrease persistence. other correlated regeneration can lead clustered...

10.1034/j.1600-0706.2003.12770.x article EN Oikos 2003-10-21
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