A5091840450- Aquatic Ecosystems and Phytoplankton Dynamics
- Polar Research and Ecology
- Biocrusts and Microbial Ecology
- Tardigrade Biology and Ecology
- Fish Ecology and Management Studies
- Microbial Community Ecology and Physiology
- Fire effects on ecosystems
- Study of Mite Species
- Marine and coastal ecosystems
- Soil Carbon and Nitrogen Dynamics
- Marine Biology and Ecology Research
- Invertebrate Taxonomy and Ecology
- Environmental DNA in Biodiversity Studies
- Collembola Taxonomy and Ecology Studies
- Freshwater macroinvertebrate diversity and ecology
- Rangeland and Wildlife Management
- Insect and Arachnid Ecology and Behavior
- Protist diversity and phylogeny
- Aquatic Invertebrate Ecology and Behavior
- Peatlands and Wetlands Ecology
- Lichen and fungal ecology
- Plant and animal studies
- Planetary Science and Exploration
- Biofield Effects and Biophysics
- Forest Management and Policy
Institute of Soil Biology
2015-2024
Czech Academy of Sciences, Biology Centre
2015-2024
Czech Academy of Sciences
2007-2024
Institute of Hydrobiology, Biology Centre, Academy of Sciences of the Czech Republic
2003-2024
University of South Bohemia in České Budějovice
1998-2023
Sewanee: The University of the South
2016
Changes in climate, land use, and management impact the occurrence severity of wildland fires many parts world. This is particularly evident Europe, where ongoing changes use have strongly modified fire patterns over last decades. Although satellite data by European Forest Fire Information System provide large-scale statistics across countries, there still a crucial need to collect summarize in-depth local analysis understanding condition associated challenges Europe. article aims general...
Abstract The worldwide distribution of microinvertebrates on glaciers, the coldest biome, is poorly known. Owing to their tolerance hostile conditions, small size and dispersal abilities, nematodes, tardigrades rotifers are considered cosmopolitan together inhabit various ecosystems. In this study, we investigated global in cryoconite holes – a type freshwater reservoir forming directly glacial ice that creates biodiversity hotspots glaciers. We analysed samples (using classical microscopic...
High-elevation cold deserts in Tibet and Himalaya are one of the most extreme environments. One consequence is that diversity macrofauna this environment often limited, soil microorganisms have a more influential role governing key surface subsurface bioprocesses. microfauna represent important components ecosystems dominant consumers microbial communities. Still little known about their distribution on edge reproductive metabolic abilities. In study, we disentangle impact elevation...
Abstract. Glaciers are known to harbor surprisingly complex ecosystems. On their surface, distinct cylindrical holes filled with meltwater and sediments considered hot spots for microbial life. The present paper addresses possible biological interactions within the community of prokaryotic cyanobacteria eukaryotic microalgae (microalgae) relations potential grazers, such as tardigrades rotifers, additional environmental controls. Svalbard glaciers substantial allochthonous input material...
Abstract Tardigrades may be divided into the following feeding groups: herbivores, carnivores and omnivores. However, little is known about their specific preferences. Here, we used a number of laboratory experiments with 18 potential food sources, representing wide variety organisms, to test preferences, survival fecundity three tardigrade species, different modes. We also tested for differences in preferences between juveniles adults, two age one that started experiment as other adults. In...
<p>Despite the fact that glaciers and ice sheets have been monitored for more than a century, knowledge on glacial biota remains poor. Cryoconite holes are water-filled reservoirs glacier’s surface one of most extreme ecosystems micro-invertebrates. Tardigrada, also known as water bears, common inhabitant cryoconite holes. In this paper we present novel data morphology, diversity, distribution role in food web tardigrades Arctic glaciers. From 33 sampled 6 Spitsbergen, 25 were found...
Abstract Glaciers are inhabited by various cryophilic organisms ranging from single celled to multicellular, like Tardigrada (water bears). Owing their scattered distribution, glaciers represent extremely fragmented habitats, and it remains unclear how inhabitants survive disperse among such isolated patches. This study investigates the biogeography of tardigrade genus Cryoconicus , whose population stability, interregional connectivity examined screening collections ~ 60 worldwide a...
Caves are special natural laboratories for most biota and the cave communities unique. Establishing population in is accompanied with modifications adaptability animals. To date, little known about survival mechanisms of soil animals environments, albeit they play vital roles terrestrial ecosystems. Here, we investigated whether how gut microbes would contribute to adaptation earthworms by comparing microbiome two earthworm species from surface caves.Two dominant inhabited caves, i.e.,...
Tardigrades are omnipresent microfauna with scarce record on their ecology in soils. Here, we investigated soil inhabiting tardigrade communities five contrasting polar habitats, evaluating abundance, diversity, species richness, and composition. Moreover, measured selected physico-chemical properties to find the drivers of distribution among these habitats. In spite reported viability extreme conditions, glacier forelands represented a habitat almost devoid tardigrades. Even dry wet tundra...
Abstract. Arctic cryoconite holes represent highly biologically active aquatic habitats on the glacier surface characterized by dynamic nature of their formation and functioning. The most common apex consumers are cosmopolitan invertebrates – tardigrades rotifers. Several studies have highlighted potential relevance rotifers to holes' ecosystem However, due dominant occurrence prokaryotes, these usually out major scope aimed at understanding biological processes glaciers. aim this...
Abstract Arctic soils are an important reservoir of soil organic carbon (SOC) and their role in determining arctic ecosystem functioning global budgets requires closer attention. We investigated the coupling properties SOC stabilization mechanisms high terrestrial habitats differing vegetation cover matter input. focused on physical chemical glacier foreland, crust, dry tundra, wet bird cliff meadow Svalbard (Norway). Concurrently, we performed fractionation to determine amount stabilized by...
Following the creation of a new organic layer after forest fire, there is an initial build-up phase overall biota. We studied soil nematode community development in chronosequence post-fire coniferous sites relation to different fire severity. The taxonomic and functional composition was analyzed detect immediate changes levels recovery food web structures, i.e., 0, 1, 4, 8, 14, 20, 45, 110 years event. Unburned served as controls. With small exceptions recorded immediately burn (mean...
Abstract The structuring role and predation impact of Cyclops vicinus on the rotifer community was studied using in situ enclosure experiments Římov Reservoir during spring 2000. Seasonal changes abundance birth rates species Synchaeta lakowitziana , Polyarthra spp., Keratella cochlearis Kellicottia longispina were related to pressure, i.e. selectivity cropping C. . All four found be consumed by whose showed a marked succession through period corresponded relative pelagic species. highest...
This work contributes to the knowledge on distribution, diversity and ecology of Antarctic soil biota. Different habitats from several ice-free coastal sites were sampled along Victoria Land across 7° latitude 71° 78°S during five austral summer seasons between 2003/04 2011/12. In this paper we report preliminary data tardigrades (water bears) Edmondson Point, Northern Land. Tardigrades found be present in 23 41 examined samples (56%). Their presence was associated exclusively with collected...