A5021009229- Animal Behavior and Reproduction
- Fish Ecology and Management Studies
- Amphibian and Reptile Biology
- Physiological and biochemical adaptations
- Genetic diversity and population structure
- Evolution and Genetic Dynamics
- Species Distribution and Climate Change
- Wildlife Ecology and Conservation
- Freshwater macroinvertebrate diversity and ecology
- Genetic and phenotypic traits in livestock
- Aquaculture Nutrition and Growth
- Aquatic Invertebrate Ecology and Behavior
- Morphological variations and asymmetry
- Animal Ecology and Behavior Studies
- Environmental Toxicology and Ecotoxicology
- Bat Biology and Ecology Studies
- Aquaculture disease management and microbiota
- Pharmaceutical and Antibiotic Environmental Impacts
- Plant and animal studies
- Environmental DNA in Biodiversity Studies
- Fish Biology and Ecology Studies
- Parasite Biology and Host Interactions
- Microbial Community Ecology and Physiology
- Marine and fisheries research
- Animal and Plant Science Education
ETH Zurich
2015-2025
Swiss Federal Institute of Aquatic Science and Technology
2016-2025
University of Jyväskylä
2021-2025
Creighton University
2022
University of the Highlands and Islands
2020
McGill University
2004-2014
Uppsala University
1997-2008
University of Helsinki
2004-2007
Czech Academy of Sciences, Biology Centre
2003
Summary Genetic and environmental maternal effects can play an important role in the evolutionary dynamics of a population: they may have substantial impact on rate direction genetic change response to selection, generate immediate phenotypic via plasticity. Because this potential rapid population, be particularly for evolution at ecological time‐scales. Despite increased interest prevalence, composition adaptive benefits effects, little is still known their processes natural populations. We...
Adaptive genetic differentiation along a climatic gradient as response to natural selection is not necessarily expressed at phenotypic level if environmental effects on population mean phenotypes oppose the genotypic effects. This form of cryptic evolution--called countergradient variation--has seldom been explicitly demonstrated for terrestrial vertebrates. We investigated patterns and in developmental rates common frogs (Rana temporaria) ca. 1600 km latitudinal across Scandinavia....
Multiple anthropogenic drivers are changing ecosystems globally, with a disproportionate and intensifying impact on freshwater habitats. A major of urbanization inputs from wastewater treatment plants (WWTPs). Initially designed to reduce eutrophication improve water quality, WWTPs increasingly release multitude micropollutants (MPs; i.e., synthetic chemicals) microbes (including antibiotic-resistant bacteria) receiving environments. This pollution may have pervasive impacts biodiversity...
Spatially varying directional selection together with restricted gene flow among populations is expected to lead local adaptation. One environmental factor that potentially causes strong selection, but little explored in evolutionary terms, naturally and anthropogenically induced acidity. We studied adaptation acidity four Swedish (two originating from areas have suffered severe anthropogenic acidification during the 1900s two which remained neutral due higher buffering capacity) of moor...
Selection pressures that act differently on males and females produce numerous differences between the sexes in morphology behaviour. However, apart from controversial report have slightly heavier brains than humans, evidence for substantial sexual dimorphism brain size is scarce. This apparent uniformity surprising given sexually distinct selection are ubiquitous one of most plastic vertebrate organs. Here we demonstrate highest level ever reported any vertebrate: male three-spined...
Abstract Parallel (and convergent) phenotypic variation is most often studied in the wild, where it difficult to disentangle genetic vs. environmentally induced effects. As a result, potential contributions of plasticity parallelism nonparallelism) are rarely evaluated formal sense. Phenotypic could be enhanced by that causes stronger across populations wild than would expected from differences alone. dampened if site‐specific between otherwise genetically parallel populations. We used...
Human land uses and population growth represent major global threats to biodiversity ecosystem services. Understanding how biological communities respond multiple drivers of human-induced environmental change is fundamental for conserving ecosystems remediating degraded habitats. Here, we used a replicated 'real-world experiment' study the responses invertebrate wastewater perturbations across land-use intensity gradient in 12 Swiss streams. We different taxonomy trait-based community...
Effects of different combinations stressors (viz. temperature, food level) on growth, developmental and survival rates Rana temporaria tadpoles from two geographically widely (∼ 1500 km) separated populations were studied in a common garden experiment. In both populations, low temperature level lead to towered growth delayed metamorphosis, whereas high had the opposite effect. Tadpoles north metamorphosed earlier exhibited higher than south, suggesting local adaptation shorter period cooler...
Abstract In mountains, environmental gradients are steep in both terrestrial and aquatic systems, climate change is causing upward shifts of physical biological features these gradients. Glacial streams an interesting system to evaluate such because have a linear nature (for simplicity analysis), the stream habitat will at least temporarily lengthen as it follows receding glaciers upward. The Tschierva Glacier, Swiss Alps, receded 482 m upstream from 1997 2008. We tested null hypothesis that...
Numerous studies of wild populations have shown that phenotypic traits can change adaptively on short timescales, but very few considered coincident changes in major fitness components. We here examine adaptive life-history and survival rates for guppies introduced into new environments. Female the derived (Damier River) diverged from ancestral (Yarra population, as a result adaptation to predation regime (high vs. low) other aspects local river. Moreover, some components Damier populations,...
Ecogeographical rules linking climate to morphology have gained renewed interest because of change. Yet few studies evaluated what extent geographical trends ascribed these a genetic, rather than environmentally determined, basis. This applies especially Allen's rule, which states that the relative extremity length decreases with increasing latitude. We studied leg in common frog (Rana temporaria) along 1500 km latitudinal gradient utilizing wild and garden data. In wild, body size-corrected...
Ecological selection against hybrids between populations occupying different habitats might be an important component of reproductive isolation during the initial stages speciation. The strength and directionality this barrier to gene flow depends on genetic architecture underlying divergence in ecologically relevant phenotypes. We here present line cross analyses inheritance for two key foraging-related morphological traits involved adaptive stickleback ecotypes residing parapatrically lake...
As a key life-history trait, growth rates are often used to measure individual performance and inform parameters in demographic models. Furthermore, intraspecific trait variation generates diversity nature. Therefore, partitioning out understanding drivers of spatiotemporal rate is fundamental interest ecology evolution. However, this has rarely been attempted owing the amount individual-level data required through both time space, issues with missing important covariates. Here, we...
Different environments should select for different aspects of organismal performance, which lead to correlated divergence in morphological traits that influence performance. The result be genetic morphology and associations (‘maps’) between Testing this hypothesis requires quantifying performance multiple populations after controlling environmental differences, but is rarely attempted. We used a common-garden experiment examine several swimming within the lake inlet threespine stickleback...
Abstract Mating isolation is a frequent contributor to ecological speciation – but how consistently does it evolve as result of divergent selection? We tested for genetically based mating between lake and stream threespine stickleback ( Gasterosteus aculeatus L.) from the Misty watershed, Vancouver Island, British Columbia. combined several design elements that are uncommon in studies mate choice: (i) we used second‐generation laboratory‐reared fish (to reduce environmental maternal...
Microevolutionary responses to spatial variation in the environment seem ubiquitous, but relative role of selection and neutral processes driving phenotypic diversification remain often unknown. The moor frog (Rana arvalis) shows strong divergence along an acidification gradient Sweden. We here used correlations among population pairwise estimates quantitative trait (P(ST) or Q(ST) from common garden embryonic acid tolerance larval life-history traits) genetic (F(ST) microsatellite markers),...