Yes (384)
Used filters
(4)
Number of found documents:
384
Published from
to
Long-term changes in numbers and distribution of wintering waterbirds in the Czech Republic, 1966 - 2008
POLÁKOVÁ, Simona
2012 - English
This paper assessed long-term trends in the numbers and distribution of the 26 most abundant wintering waterbird species in the Czech Republic. Data were based on International Waterbird Census data, that started in our country in 1966. Climatic variables and all-european trends were taken in account. This paper assessed long-term trends in the numbers and distribution of the 26 most abundant wintering waterbird species in the Czech Republic. Data were based on International Waterbird Census data, that started in our country in 1966. Climatic variables and all-european trends were taken in account.
Keywords:
waterbirds; long-time trends in numbers and distribution; TRIM
Available in the Digital Repository of University of South Bohemia.
Long-term changes in numbers and distribution of wintering waterbirds in the Czech Republic, 1966 - 2008
This paper assessed long-term trends in the numbers and distribution of the 26 most abundant wintering waterbird species in the Czech Republic. Data were based on International Waterbird Census data, ...
Red-backed Shrikes (Lanius collurio) adjust the mobbing intensity, but not mobbing frequency, by assessing the potential threat to themselves from different predators
NĚMEC, Michal
2013 - English
We tested ability to adjust nest defence in the red-backed shrike. We presented dummies of three species of adult bird predators (sparrowhawk, kestrel, and long-eared owl; differing in the potential danger for the defending birds), plus two species of nest predators (jay and magpie; differing in the proportion of nestlings of small passerines in their diets). A dummy pigeon was used as the control. Shrikes regularly attacked all of the dummies tested, with the exception of the magpie and pigeon. We tested ability to adjust nest defence in the red-backed shrike. We presented dummies of three species of adult bird predators (sparrowhawk, kestrel, and long-eared owl; differing in the potential danger for the defending birds), plus two species of nest predators (jay and magpie; differing in the proportion of nestlings of small passerines in their diets). A dummy pigeon was used as the control. Shrikes regularly attacked all of the dummies tested, with the exception of the magpie and pigeon.
Keywords:
mobbing; red-backed shrike; nest defence; antipredator behaviour
Available in the Digital Repository of University of South Bohemia.
Red-backed Shrikes (Lanius collurio) adjust the mobbing intensity, but not mobbing frequency, by assessing the potential threat to themselves from different predators
We tested ability to adjust nest defence in the red-backed shrike. We presented dummies of three species of adult bird predators (sparrowhawk, kestrel, and long-eared owl; differing in the potential ...
The fine-scale utilization of forest edges by mammalian mesopredators related to patch size and conservation issues in Central European farmland
ČERVINKA, Jaroslav
2012 - English
In this study we investigated the edge effect in relation to different forest fragment size. We found strong edge preferences for the whole community of autochthonous carnivore species in all fragments regardless the fragment size. Our findings confirm that mammalian mesopredators strongly prefer habitat edges and small forest fragments.
Keywords:
Edge effect; fragment size; mammalian mesopredators; fragmentation; scent stations; Czech Republic
Available in the Digital Repository of University of South Bohemia.
The fine-scale utilization of forest edges by mammalian mesopredators related to patch size and conservation issues in Central European farmland
In this study we investigated the edge effect in relation to different forest fragment size. We found strong edge preferences for the whole community of autochthonous carnivore species in all ...
Vegetation and carbon gas dynamics under a changed hydrological regime in central European peatlands
URBANOVÁ, Zuzana
2012 - English
The effect of drainage and restoration on the ecology of different types of peatlands in the Šumava Mountains was investigated. The study was focused primarily vegetation dynamics, carbon gas fluxes and their linkages under the affected hydrological regimes. The effect of drainage and restoration on the ecology of different types of peatlands in the Šumava Mountains was investigated. The study was focused primarily vegetation dynamics, carbon gas fluxes and their linkages under the affected hydrological regimes.
Keywords:
peatland; drainage; restoration; CH4; CO2; carbon; fen; bog
Available in the Digital Repository of University of South Bohemia.
Vegetation and carbon gas dynamics under a changed hydrological regime in central European peatlands
The effect of drainage and restoration on the ecology of different types of peatlands in the Šumava Mountains was investigated. The study was focused primarily vegetation dynamics, carbon gas fluxes ...
"DNA" barcoding is of limited value for identifying adelgids (Hemiptera: Adelgidae) but supports traditional morphological taxonomy
VĚCHTOVÁ, Pavlína
2011 - Czech
The presented study deals with adelgids (Hemiptera: Adelgidae) identification based on the sequence divergence of part of mitochondrial cytochrome ?c oxidase I (COI) gene used for ?DNA barcoding?. Analysis evaluates the DNA barcoding ability to discriminate adelgids on the genera level and it supports species identification based on morphological taxonomy. However, it failed to recognize species within species complexes.
Keywords:
Adelgidae; aphids; species identification; systematics; DNA barcoding
Available in the Digital Repository of University of South Bohemia.
"DNA" barcoding is of limited value for identifying adelgids (Hemiptera: Adelgidae) but supports traditional morphological taxonomy
The presented study deals with adelgids (Hemiptera: Adelgidae) identification based on the sequence divergence of part of mitochondrial cytochrome ?c oxidase I (COI) gene used for ?DNA barcoding?. ...
Nejstarší české pověsti a legendy a jejich odraz ve výuce literatury
HŮLKOVÁ, Dagmar
2012 - Czech
Available in the Digital Repository of University of South Bohemia.
Nejstarší české pověsti a legendy a jejich odraz ve výuce literatury
Long-Term Cold Acclimation Extends Survival Time at 0°C and Modifies the Metabolomic Profiles of the Larvae of the Fruit Fly Drosophila melanogaster
KORBELOVÁ, Jaroslava
2012 - English
We assessed survival of larvae of the fruit fly, Drosophila melanogaster at 0°C after rearing them under three different acclimation regimes. A comparison of the larvae acclimated at constant 25°C with those acclimated at constant 15°C followed by constant 6°C for 2 d showed that long-term cold acclimation extended the lethal time for 50% of the population (Lt50) during exposure to constant 0°C as much as 630-fold (from 0.137 h to 86.658 h). Detailed metabolomic analyses showed that long-term cold acclimation modified the metabolomic profiles of the larvae. The most prominent responses were accumulations of proline (up to 17.7 mM) and trehalose (up to 36.5 mM). In addition, restructuring of the glycerophospholipid composition of biological membranes was observed. Práce vyhodnocuje přežívání larev octomilky Drosophila melanogaster v 0°C po jejich odchovu ve třech různých aklimačních režimech. Porovnání larev aklimovaných v konstantních 25°C s larvami aklimovanými v konstantních 15°C následovaných konstantní teplotou 6°C po 2 dny ukázalo, že dlouhodobá chladová aklimace prodlužuje dobu přežití u 50% populace (Lt50) při vystavení konstantní teplotě 0°C více než 630-krát (z 0,137 hodin na 86,658 hodin). Podrobné metabolomické analýzy prokázaly, že dlouhodobá chladová aklimace mění metabolomický profil larev. Nejvýznamnější odpovědí byla akumulace prolinu (až 17,7 mM) a trehalózy (až 36,5 mM). Také byla pozorována restrukturalizace skladby glycerofosfolipidů biologických membrán.
Keywords:
Drosophila melanogaster; chladová aklimace; přežívání; metabolomické analýzy
Available in the Digital Repository of University of South Bohemia.
Long-Term Cold Acclimation Extends Survival Time at 0°C and Modifies the Metabolomic Profiles of the Larvae of the Fruit Fly Drosophila melanogaster
We assessed survival of larvae of the fruit fly, Drosophila melanogaster at 0°C after rearing them under three different acclimation regimes. A comparison of the larvae acclimated at constant 25°C ...
Tick sialostatins L and L2 differentially influence dendritic cell responses to Borrelia spirochetes
PÁLENÍKOVÁ, Jana
2015 - English
Transmission of pathogens by ticks is greatly supported by tick saliva released during feeding. Dendritic cells (DC) act as immunological sentinels and interconnect the innate and adaptive immune system. They control polarization of the immune response towards Th1 or Th2 phenotype. We investigated whether salivary cystatins from the hard tick Ixodes scapularis, sialostatin L (Sialo L) and sialostatin L2 (Sialo L2), influence mouse dendritic cells exposed to Borrelia burgdorferi and relevant Toll-like receptor ligands. Při přenosu patogenů z klíštěte na hostitele hrají zásadní roli molekuly uvolňované ze slinných žláz během sání. Dendritické buňky působí jako imunitní sentinely, spojují přirozenou a získanou imunitu a kontrolují její vývoj směrem k Th1 či Th2 fenotypu. V práci jsme se zaměřili na vliv cystatinů z Ixodes scapularis, Sialo L a L2 na myší dendritické buňky stimulované boreliemi a TLR ligandy.
Keywords:
dendritické buňky; Borrelia burgdorferi; klíštěcí cystatiny; signalizace
Available in the Digital Repository of University of South Bohemia.
Tick sialostatins L and L2 differentially influence dendritic cell responses to Borrelia spirochetes
Transmission of pathogens by ticks is greatly supported by tick saliva released during feeding. Dendritic cells (DC) act as immunological sentinels and interconnect the innate and adaptive immune ...
A study about the recatholization of the Lower Austrian domain Weitra in the years 1587-1589 with the regard to the so-called "Czech Vitorazsko" area. Or: Subjekts in the gears meshing between the patrimonial -authority and patronage.
OESTERREICHER, Jiří
2014 - Czech
Available in the Digital Repository of University of South Bohemia.
A study about the recatholization of the Lower Austrian domain Weitra in the years 1587-1589 with the regard to the so-called "Czech Vitorazsko" area. Or: Subjekts in the gears meshing between the patrimonial -authority and patronage.
Hidden diversity and evolutionary trends in malacosporean parasites (Cnidaria: Myxozoa) identified using molecular phylogenetics
HRABCOVÁ, Martina
2015 - English
Malacosporeans represent only a minor part of the huge myxozoan diversity, accounting for more than 2000 species. In contrast to the remainder of the Myxozoa, malacosporeans cycle between vertebrate (fish) and invertebrate (bryozoans) hosts and are restricted to freshwater habitats. The present study applies light microscopy and molecular methods to scrutinize the morphology, prevalence, diversity, distribution as well as host and habitat preference of malacosporeans in fish hosts. Comprehensive phylogenetic analyses based on newly obtained malacosporean SSU rDNA sequences and those available in GenBank reveal important evolutionary trends in this group. The significant increase in malacosporean species richness unveiled in the present study points to a hidden biodiversity. Reasons for this cryptic species diversity, the potential existence of malacosporean life cycles in marine environment as well as the evolution of worm- and sac-like morphology in bryozoan host are discussed.
Available in the Digital Repository of University of South Bohemia.
Hidden diversity and evolutionary trends in malacosporean parasites (Cnidaria: Myxozoa) identified using molecular phylogenetics
Malacosporeans represent only a minor part of the huge myxozoan diversity, accounting for more than 2000 species. In contrast to the remainder of the Myxozoa, malacosporeans cycle between vertebrate ...
NRGL provides central access to information on grey literature produced in the Czech Republic in the fields of science, research and education. You can find more information about grey literature and NRGL at service web
Send your suggestions and comments to nusl@techlib.cz
Provider
Other bases