|
|
Effect of carrion size on the succesion of the nephilous insect society
Mikátová, Šárka ; Šípek, Petr (advisor) ; Jakubec, Pavel (referee)
The aim of this work was to assess the effect of carrion size on insect communities succession based on previously published studies. Assessement of various factors on carrion is important in forensic analysis and to determine the PMI (post morte interval). The most abundant and investigate groups of carrion insects are Diptera and Coleoptera. Model organism in most cases is a pig (Sus scrofa L). Decomposition of small carrions varies from medium and large size carrion, which causes different succession of insects. Relevant judging of differences between studies is not possible because of many factors which affect carrion decomposition. Key words: necrobiont insects, carrion, body size, Diptera, Coleoptera
|
|
|
Periodic Water Bodies and Their Biota.
Bušová, Tereza ; Říhová, Dagmar (advisor) ; Škodová, Jana (referee)
This thesis is focused on a description of small periodic water bodies and their biota. These telms are formed as a result of heavy spring rains, floods, melting snow or the ground water level rising. They are formed on green parts, non-green parts or fallen parts of a plant (in that case they are called phytotelmes), in water-filled tree-holes (dendrotelmes), in fissures of rocks (lithotelms) or in various cavities, artificially created by human - in empty jars, water- filled tires, flower-holding vases in cemeteries etc. The thesis deals mainly with dendrotelmes and phytotelmes which are the most frequent, especially in tropics. It provides the information about their formation and animals that lives in these small habitats. Also, a taxonomical review of the main reported fauna was added for better orientation of the reader. The most common taxa which occur in temporary pools are families of mosquitoes (Culicidae), chironomids (Chironomidae) and ceratopogonids (Ceratopogonidae). There are also present other Dipteran larvae or larvae of scirtid beetles from the family Helodidae. Some of the animals living in the pools used different evolution strategies to be well adapted to deal with periodicity and drying out of the water bodies. Their overview is also included in this thesis. Furthermore,...
|
|
|
Issue of Deer ked from the Perspective of Monitoring
Bjelková, Karolína ; Horák, Jakub (advisor) ; Holuša, Jaroslav (referee)
This bachelor thesis concerned issue of deer ked from the perspective of monitoring to wild game on the skin pulled from hunted animals and human specimens showing two locations for themselves binding - Mala Morava and Libava. Deer ked is hematophagous ectoparasite of cervids, which in recent years expanded its area of occurrence from Europe to America. The aim of this study was to determine the prevalence and intensity of infection and to evaluate the influence of the nature habitant, weather factors or determination of sex by the host.For identification were examined 95 animals in body area, on the nape and genitals. The overall intensity of the attack were analysed in relation to age, gender, weather and landscape characteristics of point of capture. Results of occurrence of deer ked are described and evaluated demostrate the prevalence of infection almost 100%, but the rate pressure of animals ranged from 0 to 10 deer ked 100 cm-2. The highest occurence was found in males, and simultaneously was also associated wit a host of areas on the body where the most parasites were found on the genitals, 7-10 pieces. The significant influence had the temperature. The influence of rainfall was insignificant. It was found that the highest occurrence is on the animals, which use habitant fields and meadows, probably due to positive effects of solar radiation and thereby raise the surface temperature of the skin. Localization of body aeas can be used to setting means for effectiveness insecticide against these parasites.
|
|
|
Issue of deer ked from the perspective of efficiency of repellents
Hallová, Elen ; Horák, Jakub (advisor) ; Lukášová, Karolína (referee)
This bachelor thesis summarises information about hematophagous Deer ked (Lipoptena cervi), which attacks animals living in the wild and also humans. This topic is interesting particularly because of the global threat to human by haematophagous insects while continuous expansion of its distributional range. There is described external morphology and sexual dimorphism using electron microscopy. Due to an increased cases of incidences of Lipoptena cervi on humans there is description of production of a natural insect repellent and test of its effectiveness at selected sites outdoors with the help of test methods on human volunteers. Briefly, the thesis analysed the possibility of transmission of infectious diseases Lipoptena cervi. Biorepelent repeled Lipoptena cervi 100% even though it is a hematophagous, Lipoptena cervi has not yet been established as a carrier of pathogens, infections and other diseases on humans.
|
|
|
Heterotrophic succession of dung insect communities of the warmer part of European temperate region
SLÁDEČEK, František
The mechanisms of dung inhabiting insects' heterotrophic succession were studied by preventing the colonisation of early successional insect. The early successional insect, predominantly the large larvae of Calyptratae Diptera, both facilitated and inhibited the later establishing insect. Whereas the removal of early successional species affected negatively the late successional Coleoptera (facilitation), the small late successional larvae of Acalyptratae Diptera were affected positively (inhibition). The patterns retrieved from the heterotrophic succession strongly resemble the patterns retrieved from the autotrophic, mostly plant, succession Therefore it is possible to suggest, that similar mechanisms are behind both the autotrophic and the heterotrophic succession.
|
|
| |
|
| |
guest ::
