A5023129627- Aquatic Ecosystems and Phytoplankton Dynamics
- Evolution and Genetic Dynamics
- Biocrusts and Microbial Ecology
- Aquatic Ecosystems and Biodiversity
- Parasite Biology and Host Interactions
- Marine and coastal ecosystems
- Insect symbiosis and bacterial influences
- Parasitic Infections and Diagnostics
- Aquatic Invertebrate Ecology and Behavior
- Microbial Community Ecology and Physiology
- Polish socio-economic development
- Vibrio bacteria research studies
- Genetics, Aging, and Longevity in Model Organisms
- Zoonotic diseases and public health
- Plant Virus Research Studies
- Species Distribution and Climate Change
- Integrated Water Resources Management
- Fish Ecology and Management Studies
- Marine Ecology and Invasive Species
- Plant Disease Resistance and Genetics
- Evolutionary Game Theory and Cooperation
- Smart Grid Security and Resilience
- Management and Organizational Practices
- Plant Disease Management Techniques
- Polar Research and Ecology
University of Michigan
2022-2025
Leibniz Institute of Freshwater Ecology and Inland Fisheries
2020-2022
Adam Mickiewicz University in Poznań
2013-2021
Abstract Outbreaks of environmentally transmitted parasites require that susceptible hosts encounter transmission stages in the environment and become infected, but we also know can be without triggering disease outbreaks. One challenge understanding relationship between environmental outbreaks is distribution abundance outside their have been difficult to quantify. Thus, limited data about how changes stage influence dynamics; moreover, do not whether differs among parasite species. We used...
One major concern related to climate change is that elevated temperatures will drive increases in parasite outbreaks. Increasing temperature known alter host traits and host–parasite interactions, but we know relatively little about how these are connected mechanistically—that is, warmer impact the relationship between epidemiologically relevant infection outcomes. Here, used a zooplankton–fungus ( Daphnia dentifera–Metschnikowia bicuspidata ) disease system experimentally investigate...
Tardigrades are microinvertebrates inhabiting almost all aquatic and terrestrial ecosystems throughout the world. They known for their ability to enter into cryptobiosis survive extreme environmental conditions (e.g. lack of water, very high low temperatures, doses radiation, vacuum space). Thanks these abilities, tardigrades excellent model organisms various types studies, e.g. ecological, ethological, physiological, astrobiological, biotechnological or medical, even in integrative...
Cryoconite, the dark sediment on surface of glaciers, often aggregates into oval or irregular granules serving as biogeochemical factories. They reduce a glacier's albedo, act biodiversity hotspots by supporting aerobic and anaerobic microbial communities, constitute one organic matter (OM) sources are feeder for micrometazoans. Although cryoconite have multiple roles their formation is poorly understood. Cyanobacteria ubiquitous abundant engineers hole ecosystems. This study tested whether...
Symbionts are classified as parasites, commensals, or mutualists based on their individual-level effects host traits such mortality reproduction rates. However, the classification of symbiosis might change when focal interaction is investigated at population scale, for multiple generations, under different environmental contexts. We individual- and population-level a microsporidian, Ordospora pajunii , yeast, Metschnikowia bicuspidata key freshwater grazer Daphnia dentifera . Specifically,...
Abstract Infection outcomes can be strongly context-dependent, shifting a host-symbiont relationship along parasitism-mutualism continuum. Numerous studies show that under stressful conditions, symbionts are typically mutualistic become parasitic. The reverse possibility – parasite becoming has received much less study. We investigated whether the parasitic microsporidium Ordospora pajunii beneficial for its host Daphnia dentifera in presence of more virulent fungal pathogen Metschnikowia...
Abstract Under conditions of global warming, organisms are expected to track their thermal preferences, invading new habitats at higher latitudes and altitudes altering the structure local communities. To fend off potential invaders, indigenous communities/populations will have rapidly adapt increase in temperature. In this study, we tested if decades artificial water heating changed communities populations Daphnia longispina species complex. We compared composition contemporary inhabiting...
Abstract There is intense interest in understanding pathogen virulence – that is, the degree of damage caused to a host by pathogen. However, despite abundant evidence effects stressors can carry across generations, studies have focused almost exclusively on single generation. Here, we describe transgenerational virulence, where parental exposure reduces offspring fitness. Daphnia microsporidian significantly reduced lifespan and fecundity offspring. The trans-generational virulent maternal...
Filamentous cyanobacteria are known to negatively affect the life history of planktonic herbivores through mechanical interference with filtering apparatus. Here, we hypothesise that not only length but also thickness cyanobacterial filaments is an important factor shaping Daphnia. To test our hypothesis, cultured Daphnia magna non-toxin-producing strains either Aphanizomenon gracile or Cylindrospermopsis raciborskii. The former possesses wide filaments, whereas latter has thinner filaments....
The impacts of microsporidia on host individuals are frequently subtle and can be context dependent. A key example the latter comes from a recently discovered microsporidian symbiont
Cyanobacterial blooms are increasingly common during winters, especially when they mild. The goal of this study was to determine the summer and winter phytoplankton community structure, cyanotoxin presence, toxigenicity in a eutrophic lake susceptible cyanobacterial throughout year, using classical microscopy, an analysis toxic cyanometabolites, genes involved biosynthesis cyanotoxins. We also assessed whether diversity studied has changed compared what reported previous reports conducted...
Filamentous cyanobacteria are frequently consumed by grazers like Daphnia, which can break filaments and make them more readily available to filter-feeders. However, various defence mechanisms against grazing have also been observed in cyanobacteria. Data concerning changes the morphology of filamentous algae, especially their width presence a grazer, scarce. Field studies filament relate nutrient availability temperature. Moreover, displays significant differences length among seasons. We...
Grazing is recognized as one of the selective factors shaping morphology and physiology cyanobacteria. A recent study has shown that filamentous cyanobacterium Aphanizomenon gracile strain SAG 31.79 thickened in presence Daphnia (Cladocera) its exudates. The aims our were: (1) to determine whether this type response cues common for other strains A. gracile, species cyanobacteria, (2) test due nutrients recycled by Daphnia, or kairomone induced, (3) it related toxin production. Prior...
Organism dispersal is nowadays highly driven by human vectors. This also refers to the aquatic organisms that can often silently spread in and invade new waters, especially when vectors of act without brakes. Thus, it mandatory continuously identify human-mediated mechanisms organism implement proper biosecurity treatments. In this study, we demonstrate how plankton net – one basic instruments equipment every sampling person a good vector for invasions. We whether keeping an ethanol solution...
Infection outcomes can be strongly context dependent, shifting a host-symbiont relationship along parasitism-mutualism continuum. Numerous studies show that under stressful conditions, symbionts are typically mutualistic become parasitic. The reverse possibility, parasite becoming mutualistic, has received much less study. We investigated whether the parasitic microsporidium
ABSTRACT Spirobacillus cienkowskii ( Spirobacillus, hereafter) is a widely distributed bacterial pathogen that has significant impacts on the population dynamics of zooplankton Daphnia spp .) , particularly in months when are asexually reproducing. However, little known about Spirobacillus’ virulence, transmission mode, and dynamics. As result, we cannot explain epidemics nature or use as model pathogen, despite Daphnia’s tractability host. Here, work to fill these knowledge gaps...
Abstract Transgenerational plasticity can help organisms respond rapidly to changing environments. Most prior studies of transgenerational in host–parasite interactions have focused on the host, leaving us with a limited understanding parasites. We tested whether exposure elevated temperatures while spores are developing modify ability those infect new hosts, as well growth and virulence next generation parasites host. exposed Daphnia dentifera its naturally co-occurring fungal parasite...
Abstract Impacts of microsporidia on host individuals are frequently subtle and can be context dependent. A key example the latter comes from a recently discovered microsporidian symbiont Daphnia, net impact which was found to shift negative positive based environmental context. Given this, we hypothesized low baseline virulence microsporidian; here, investigated infection hosts in controlled conditions absence other stressors. We also its phylogenetic position, ecology range. The genetic...
It is assumed that daphnids adjust the filter screen morphology in order to minimize interference with cyanobacterial filaments. The aim of this study was investigate impact filamentous cyanobacteria (Aphanizomenon gracile Lemmermann, Cylindrospermopsis raciborskii Woloszynska Seenaya et Subba Raju) on thickness and length setae third pair thoracic limbs Daphnia magna. second objective assess whether modifications could improve performance presence cyanobacteria. Three clones magna Straus...
<p>Recent studies have shown that the filamentous cyanobacterium <em>Aphanizomenon gracile</em> Lemmermann, strain SAG 31.79, consists of two types filaments differ in thickness. These are known to vary resistance <em>Daphnia</em> <em>magna</em> grazing: thin (&lt;2.5 µm) more vulnerable grazing than thick ones (&gt;2.5 µm). In this study, we investigated whether difference vulnerability and is a result different thickness their cell walls,...
Abstract Organisms are increasingly facing multiple stressors, which can simultaneously interact to cause unpredictable impacts compared with a single stressor alone. Recent evidence suggests that phenotypic plasticity allow for rapid responses altered environments, including biotic and abiotic both within generation across generations (transgenerational plasticity). Parents potentially “prime” their offspring better cope similar stressors or, alternatively, might produce less fit because of...