Association between louse abundance and MHC II supertypes in Galápagos mockingbirds
VLČEK, Jakub
2022 - English In this thesis I describe association between abundance of ectoparasitic lice and supertypes of major histocompatibility complex in mockingbirds of Galápagos islands. I report a significant association between several supertypes and the lice abundance. Lice abundance was correlated also with heterocyte to lymphocyte ratio, an immunogenetic index reflecting rate of immune stress. This scientific contribution is valuable, because ectoparasite abundance in birds was rarely contrasted to MHC and other immune indices. In this thesis I describe association between abundance of ectoparasitic lice and supertypes of major histocompatibility complex in mockingbirds of Galápagos islands. I report a significant association between several supertypes and the lice abundance. Lice abundance was correlated also with heterocyte to lymphocyte ratio, an immunogenetic index reflecting rate of immune stress. This scientific contribution is valuable, because ectoparasite abundance in birds was rarely contrasted to MHC and other immune indices. Keywords: ectoparasite; immunity; genes; major histocompatibility complex Available in the Digital Repository of University of South Bohemia. Association between louse abundance and MHC II supertypes in Galápagos mockingbirds

In this thesis I describe association between abundance of ectoparasitic lice and supertypes of major histocompatibility complex in mockingbirds of Galápagos islands. I report a significant ...

VLČEK, Jakub
Jihočeská univerzita v Českých Budějovicích, 2022

World travellers: phylogeny and biogeography of the butterfly genus Leptotes (Lepidoptera: Lycaenidae)
PAPP MAREŠOVÁ, Jana
2019 - English In this thesis, we investigated phylogenetic and biogeographical relationships of neglected butterflies of the subtribe Leptotina (Lepidoptera: Lycaenidae), widely distributed in tropical and subtropical areas around the world. We used both mitochondrial and nuclear markers and different molecular analyses to resolve relationships within the subtribe. We also focused on diversification times and biogeographical patterns of Old World taxa and detailed phylogeography of the most widespread species, Leptotes pirithous. V této práci jsme se zabývali fylogenetickými a biogeografickými vztahy opomíjených motýlů subtribu Leptotina (Lepidoptera: Lycaenidae), který je široce rozšířen v tropických a subtropických oblastech celého světa. Použili jsme jak mitochondriální tak nukleární markery a různé molekulární analýzy, abychom odhalili vztahy v rámci tohoto subtribu. Také jsme se zaměřili na časy diverzifikace a biogeografické patrnosti taxonů Starého světa a zabývali jsme se detailní fylogeografií nejrozšířenějšího druhu, Leptotes pirithous. Keywords: biogeografie; COI; Cyclyrius; Ef1a; Leptotina; fylogeneze; wingless Available in the Digital Repository of University of South Bohemia. World travellers: phylogeny and biogeography of the butterfly genus Leptotes (Lepidoptera: Lycaenidae)

In this thesis, we investigated phylogenetic and biogeographical relationships of neglected butterflies of the subtribe Leptotina (Lepidoptera: Lycaenidae), widely distributed in tropical and ...

PAPP MAREŠOVÁ, Jana
Jihočeská univerzita v Českých Budějovicích, 2019

Tasty rewards for ants: differences in elaiosome and seed metabolite profiles are consistent across species and reflect taxonomic relatedness
KONEČNÁ, Marie
2023 - English The reward for ants in myrmecochory is a nutrient-rich appendage, the elaiosome. This study evaluates the metabolite composition of five groups (i.e. amino acids, fatty acids, organic acids, polyols, and sugars) in elaiosomes compared to the respective seeds. Two plant species from each of the four families (Amaryllidaceae, Boraginaceae, Papaveraceae, and Poaceae) were examined, with each species represented by three populations. The hierarchically designed data enabled the decomposition of variability in metabolite composition at three levels: family, species, and population. Another aspect studied was the consistency of elaiosome metabolite composition across unrelated species from monocotyledonous and dicotyledonous families with different elaiosome origins, which may reflect the convergent evolution of elaiosomes. The reward for ants in myrmecochory is a nutrient-rich appendage, the elaiosome. This study evaluates the metabolite composition of five groups (i.e. amino acids, fatty acids, organic acids, polyols, and sugars) in elaiosomes compared to the respective seeds. Two plant species from each of the four families (Amaryllidaceae, Boraginaceae, Papaveraceae, and Poaceae) were examined, with each species represented by three populations. The hierarchically designed data enabled the decomposition of variability in metabolite composition at three levels: family, species, and population. Another aspect studied was the consistency of elaiosome metabolite composition across unrelated species from monocotyledonous and dicotyledonous families with different elaiosome origins, which may reflect the convergent evolution of elaiosomes. Keywords: Myrmecochory; Convergent evolution; Variation partitioning; Ant-plant mutualism; Seed dispersal Available in the Digital Repository of University of South Bohemia. Tasty rewards for ants: differences in elaiosome and seed metabolite profiles are consistent across species and reflect taxonomic relatedness

The reward for ants in myrmecochory is a nutrient-rich appendage, the elaiosome. This study evaluates the metabolite composition of five groups (i.e. amino acids, fatty acids, organic acids, polyols, ...

KONEČNÁ, Marie
Jihočeská univerzita v Českých Budějovicích, 2023

The Effect of P Enrichment on Exudate Quantity and Bioavailability - a Comparison of Two Macrophyte Species
KUBEŠOVÁ, Jaroslava
2016 - English A study on rhizodeposition rates and rhizodeposits bioavailability (microbial respiration, N mineralization and phosphatase activity) of two macrophyte species with different life strategies (stress-tolerator and competitor) was conducted. Research was carried out in tropical marshes of Belize; results from the field were supported by 13C partitioning mesocosm study. The stresstolerant Eleocharis spp. released more C from roots than Typha domingensis and this C was more biodegradable. The two species responded to P enrichment differently. While Eleocharisspp. invested more assimilated C to the belowground (roots, rhizomes and rhizodepositions) after P fertilization, in T. domingensis the belowground C investment decreased. The effect of plant species was larger than the effect of P enrichment. Eleocharis spp., adapted to growth under low nutrients, invests more carbon into exudation a promotion of its microbial communities in the rhizosphere while competitive T. domingensis spends more fixed C on its own growth and metabolism. Keywords: Biological availability; C partitioning; Eutrophication; Herbaceous marshes; Mineralization; P limitation; Plant life strategy; Rhizodeposition/Exudation Available in the Digital Repository of University of South Bohemia. The Effect of P Enrichment on Exudate Quantity and Bioavailability - a Comparison of Two Macrophyte Species

A study on rhizodeposition rates and rhizodeposits bioavailability (microbial respiration, N mineralization and phosphatase activity) of two macrophyte species with different life strategies ...

KUBEŠOVÁ, Jaroslava
Jihočeská univerzita v Českých Budějovicích, 2016

A peek into diversity of terrestrial cyanobacteria collected in San Gerardo de Rivas region, Costa Rica.
HAUEROVÁ, Radka
2017 - English The presented thesis focuses on diversity of cyanobacteria collected from terrestrial habitats in the surroundings of San Gerardo de Rivas, Costa Rica. The first part of this thesis consists of a floristic survey performed on dried and subsequently revived samples using light microscopy. The second part introduces new cyanobacterial genus Calochaete (Microchaetaceae, Nostocales) with the type species C. cimrmanii. The presented thesis focuses on diversity of cyanobacteria collected from terrestrial habitats in the surroundings of San Gerardo de Rivas, Costa Rica. The first part of this thesis consists of a floristic survey performed on dried and subsequently revived samples using light microscopy. The second part introduces new cyanobacterial genus Calochaete (Microchaetaceae, Nostocales) with the type species C. cimrmanii. Keywords: cyanobacteria; Costa Rica; biodiversity; floristic survey Available in the Digital Repository of University of South Bohemia. A peek into diversity of terrestrial cyanobacteria collected in San Gerardo de Rivas region, Costa Rica.

The presented thesis focuses on diversity of cyanobacteria collected from terrestrial habitats in the surroundings of San Gerardo de Rivas, Costa Rica. The first part of this thesis consists of a ...

HAUEROVÁ, Radka
Jihočeská univerzita v Českých Budějovicích, 2017

Water-Related Child Injuries in Czech Waterparks
ŠVANCAROVÁ, Alena
2017 - Czech Available in the Digital Repository of University of South Bohemia. Water-Related Child Injuries in Czech Waterparks

ŠVANCAROVÁ, Alena
Jihočeská univerzita v Českých Budějovicích, 2017

Eggs as a Suitable Tool for Species Diagnosis of Causative Agents of Human Diphyllobothriosis (Cestoda)
LEŠTINOVÁ, Kateřina
2016 - English More than 2,000 eggs of 8 species of diphyllobothriid cestodes infecting humans were compared. Combination of morphometrical and ultrastructural (surface morphology) data made it possible to distinguish all species. More than 2,000 eggs of 8 species of diphyllobothriid cestodes infecting humans were compared. Combination of morphometrical and ultrastructural (surface morphology) data made it possible to distinguish all species. Keywords: Cestoda; Tapeworms; Diphyllobothrium; eggs; SEM; Human Diphyllobothriosis; ultrastrucure; morphometry Available in the Digital Repository of University of South Bohemia. Eggs as a Suitable Tool for Species Diagnosis of Causative Agents of Human Diphyllobothriosis (Cestoda)

More than 2,000 eggs of 8 species of diphyllobothriid cestodes infecting humans were compared. Combination of morphometrical and ultrastructural (surface morphology) data made it possible to ...

LEŠTINOVÁ, Kateřina
Jihočeská univerzita v Českých Budějovicích, 2016

How universal are reserve design rules? A test using butterflies and their life history traits
BARTOŇOVÁ, Alena
2017 - English This thesis uses butterfly species lists for 125 Czech National Nature Reserves and Monuments to test the validity of generally agreed 'reserve design rules' using multivariate ordination analyses. We used analyses of butterfly life history traits to seek for biological mechanisms responsible for butterfly community responses to geometric and heterogeneity characteristics of the reserves. We found that different design characteristics are important for individual species, depending on their life histories. Tato práce testuje platnost ustanovených "reserve design" pravidel - způsobů, jakými jsou plánovány přírodní rezervace. Použili jsme seznamy druhů denních motýlů pro 125 českých Národních přírodních rezervací a Národních přírodních památek. Analýza funkčních vlastností druhů pomocí multivariátní statistiky odhalila odezvu motýlích společenstev na různé geometrické charakteristiky rezervací a jejich heterogenitu. Práce ukazuje, že různé druhy motýlů vyžadují různé vlastnosti rezervací v závislosti na druhových funkčních vlastnostech. Keywords: motýli; ochrana přírody; rezervace; funkční vlastnosti; heterogenita krajiny Available in the Digital Repository of University of South Bohemia. How universal are reserve design rules? A test using butterflies and their life history traits

This thesis uses butterfly species lists for 125 Czech National Nature Reserves and Monuments to test the validity of generally agreed 'reserve design rules' using multivariate ordination analyses. We ...

BARTOŇOVÁ, Alena
Jihočeská univerzita v Českých Budějovicích, 2017

Legionella Becoming a Mutualist: Adaptive Processes Shaping the Genome of Symbiont in the Louse Polyplax serrata
ŘÍHOVÁ, Jana
2017 - English Genomic modifications coupled with the first known transition of a Legionella bacterium to symbiosis with insects (louse Polyplax serrata). Apart from characteristics typical for other obligatory symbionts in insect (genome reduction), the main innovation of the genome consists in horizontal acquisition of complete biotin operon. Comparative genomic analysis with free living legionellae and other symbiotic bacteria demonstrates convergent evolution of several phylogenetically unrelated louse symbionts. Keywords: endosymbiont; Legionella polyplacis; Polyplax serrata; horizontal gene transfer; genome evolution; metabolism Available in the Digital Repository of University of South Bohemia. Legionella Becoming a Mutualist: Adaptive Processes Shaping the Genome of Symbiont in the Louse Polyplax serrata

Genomic modifications coupled with the first known transition of a Legionella bacterium to symbiosis with insects (louse Polyplax serrata). Apart from characteristics typical for other obligatory ...

ŘÍHOVÁ, Jana
Jihočeská univerzita v Českých Budějovicích, 2017

Klíčové faktory složení společenstva sinic dostřikové zóny na dvou chorvatských ostrovech
VONDRÁŠKOVÁ, Alžběta
2018 - English On two Croatian islands, Veruda and Ugljan, cyanobacterial communities and their composition were surveyed. The cyanobacterial composition in the splash zone was examined in horizontal and vertical directions. Statistical analysis shows the vertical gradient as the strongest one on the contrary the horizontal distribution does not reflect any pronounced differences between the islands. The species diversity and distribution is not dependent on the orientation of the locality toward the cardinal points. The study highlights the importance of high-density sampling in the vertical and also the horizontal direction for covering sufficiently the species richness of the site. Keywords: biofilm; Croatian coast; endolithic; epilithic; marine shore; zonation Available in the Digital Repository of University of South Bohemia. Klíčové faktory složení společenstva sinic dostřikové zóny na dvou chorvatských ostrovech

On two Croatian islands, Veruda and Ugljan, cyanobacterial communities and their composition were surveyed. The cyanobacterial composition in the splash zone was examined in horizontal and vertical ...

VONDRÁŠKOVÁ, Alžběta
Jihočeská univerzita v Českých Budějovicích, 2018