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Evolution of sociality and parental care in bees of the genus Ceratina
Mikát, Michael ; Straka, Jakub (advisor) ; Schwarz, Michael (referee) ; Bogusch, Petr (referee)
Small carpenter bees (genus Ceratina) are an excellent model taxon for the study of evolution of parental care and origin of eusociality. Prolonged offspring care is typical for this bee genus. Females usually guard their offspring until adulthood and later feed their adult offspring pollen and nectar. Moreover, most of studied species are facultatively eusocial, a trait probably inherited from the common ancestor of the genus. Although Ceratina bees have generally very interesting behavior, detailed studies were performed in only a few species, usually from North America, Japan and Australia. Only anecdotal observations of natural history existed for a few European species, and detailed research has not been performed before my thesis. The goal of my thesis is to explore the natural history of European species of Ceratina and to identify possible costs and benefits of this species' behavioral traits. I focused on following these behavioral traits: social nesting, guarding of offspring until adulthood, and feeding of mature offspring. Through my master project, I discovered biparental care in species C. nigrolabiata, therefore the most important goal of my Ph.D. project is the evaluation of costs and benefits of this behavior. Guarding of offspring by mother significantly influences their survival,...
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Parental Care in Insects and its Didactic Use in Teaching
Mázdrová, Vendula ; Říhová, Dagmar (advisor) ; Šípek, Petr (referee)
In my bachelor thesis, I focus on parental care in insects, its types and forms. At the same time, I present in more detail a parental care of offspring in individual representatives of insect orders. I also explain the concept of eusocial insect. In this part of my thesis I also focus on the research of literature, which in closer look describes orders of insects and parental care of their offspring. In the second, practical part, I first analyse primary school nature science textbooks to determine the extent to which parental care is taught in primary schools. I further analyse the school curriculum (SCP) and the thematic plan at a particular elementary school in Davle. I also develop didactic tools suitable for teaching - a worksheet and three didactic games that can be used in teaching nature science in the sixth grade at the primary school. Two of the created didactic tools were used in an implemented lesson at the elementary school in Davle. Finally, I write about the course of the lesson, its objectives, and I clearly describe its different parts chronologically. Finally, I summarize the lesson and compare it with similar didactic methods used by other authors in their works. Key words: social insect, offspring, parental care, lesson, game, worksheet
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Motherhood of Women with Heavy Visual Disability
Viktorová, Šárka ; Mužáková, Monika (advisor) ; Květoňová, Lea (referee)
In my work, I deal with motherhood from the perspective of mothers with severe visual impairment. I focused especially on parenthood planning, on the period of pregnancy, childbirth and stay in the maternity ward and on the care for the child from birth to the age of three. I was interested to find out, whether visually impaired mothers encounter prejudices on part of the well-sighted people, whether they were worried that they could give birth to a handicapped child, what are the difficulties that severely visually impaired mothers come across most often in the individual period of development of the child, if and how education of children is different from the perspective of visually impaired parents from the perspective of well-sighted parents and also whether the child growing up in a family with at least one visually impaired parent is deprived of something or whether, on the contrary, this family situation has any advantages for such child. The objective of my diploma thesis is to map out various aspects of life of visually impaired mothers with small children in the greatest detail, directly from the point of view of those women. I attempted to achieve this objective by means of a qualitative method research, in particular in the form of a structured interview with six visually impaired mothers.
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Parental behavior and recognition of juveniles in geckos of genus Teratoscincus
Suchomelová, Petra ; Frynta, Daniel (advisor) ; Kubička, Lukáš (referee)
4 ANNOTATION The diploma thesis deals with parental behavior and recognition of youngs by two kinds of desert geckos of genus Teratoscincus, specifically T. scincus and T. keyserlingii. The geckos inhabit a very extreme environment where it is not easy to survive, especially for the small hatchlings. Therefore, it is probable that small hatchlings live together with their parents in their territory for some time. If the parents tolerated them inside their territory, they would provide them with an indirect form of parental care. In the first part of the thesis the hypothesis that adults tolerate to the presence of juvenile conspecifics and heterospecifics (Eublepharis macularius) was tested. The main goal was to determine whether adults tolerate juveniles generally or whether they recognize juveniles conspecifics. To support the hypothesis of the adults' tolerance of juveniles the eggs of the adult geckos living in pair were left in their terrarium until the hatching of the juvenile. Further, the reaction of adult geckos to the presence of a E. macularius juvenile (small), admitted into the terrarium, was tested. The aim was to find out whether the two kinds of geckos, preying other geckoes in the nature, show predatory behavior toward the E. macularius. The standard experiment was carried out in the second...
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The analysis of playing interactions of a child at toddler age in a nursery
Petráňová, Tereza ; Šulová, Lenka (advisor) ; Morávková Krejčová, Lenka (referee)
This diploma thesis The analysis of palying interactions of a child at toddler age in a nursery is divided into two parts - the theoretical part and the empirical part. The theoretical part is divided into four main chapters. The first chapter deals with the characteristics of a child at toddler age. The individual stages of child development are described here. The second chapter focuses on the child's play activities and the third characterises nursery care in the Czech Republic and abroad. The fourth chapter contains summary of the theoretical part. The survey presented in the empirical part of the thesis consists of an analysis of play interaction between two and three-year old children and their teacher in a nursery facility. The following actions of children were monitored: vocalisation, eye contact with other people and expression of emotions, motor activity, toy preference and mutual physical contact between the teacher and a child. Video records were analysed using applications V.I.P. (Video Interactive Procesor) and MS Excel. I compared not only the data of all children, but I also focused on a comparison between the boys and girls in terms of different gender. Key words: toddler, play interaction, nursery facility, nursery teacher, child development, parental care.
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The role of individual traits in the Northern Lapwing (Vanellus vanellus) females on breeding performance, mating status and male incubation effort
Sládeček, Martin ; Šálek, Miroslav (advisor) ; Fuchs, Roman (referee)
Feather ornaments and its role as a signals in sexual selection has been broadly studied topic in avian biology. However, vast majority of studies focus especially on role of male ornamentation and female preferences in sexual selection. Despite this fact, recent work shows, that similar palette of adaptive functions can be found for female feather ornaments, and male preferences for them, respectively. This study focuses on possible importance of female melanin-based ornaments and other individual on breeding performance in the Northern Lapwing (Vanellus vanellus), common polygynous wader breeding in agricultural landscape. No significant predictor of female investment to egg size was found. Long winged females with bigger proportion of secondaries changed during prenuptial moulting and bigger extent of melanin ornaments tended, surprisingly, to later timing of breeding. Contrary to this trend, extent of female ornamentation seems to be sexually selected trait by males. Analysis of male incubation behavior shows, that males incubate more in nests of more ornamented females, as well as in nests in later incubation stage. These findings seems to be in a good agreement with "Differential allocation hypothesis". On the other site, no effect of clutch egg sizes and timing of breeding was found....
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Parental care and sociality in family Halictidae (Anthophila)
Vinická, Eliška ; Straka, Jakub (advisor) ; Klimeš, Petr (referee)
Halictidae is an important family of bees interesting mainly for the diversification of social organisation of individual species. Their sociality ranges from solitary individuals who live and care for their offspring themselves, through species that build common nests, to eusocial colonies in which the reproductive division of labour has developed. Exploring such diversity among closely related species may contribute to understanding the evolution of sociality. Thus, we can observe the development of social organization up to its higher levels, such as eusociality, or conversely, gradual evolutionary regression to solitary individuals. For such research, however, it is necessary to know not only the phylogenetic development but especially a detailed description of social behaviour in individual species. However, there are few such studies. Some of them are summarized in this work.
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Evolution of sociality and parental care in bees of the genus Ceratina
Mikát, Michael ; Straka, Jakub (advisor) ; Schwarz, Michael (referee) ; Bogusch, Petr (referee)
Small carpenter bees (genus Ceratina) are an excellent model taxon for the study of evolution of parental care and origin of eusociality. Prolonged offspring care is typical for this bee genus. Females usually guard their offspring until adulthood and later feed their adult offspring pollen and nectar. Moreover, most of studied species are facultatively eusocial, a trait probably inherited from the common ancestor of the genus. Although Ceratina bees have generally very interesting behavior, detailed studies were performed in only a few species, usually from North America, Japan and Australia. Only anecdotal observations of natural history existed for a few European species, and detailed research has not been performed before my thesis. The goal of my thesis is to explore the natural history of European species of Ceratina and to identify possible costs and benefits of this species' behavioral traits. I focused on following these behavioral traits: social nesting, guarding of offspring until adulthood, and feeding of mature offspring. Through my master project, I discovered biparental care in species C. nigrolabiata, therefore the most important goal of my Ph.D. project is the evaluation of costs and benefits of this behavior. Guarding of offspring by mother significantly influences their survival,...
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Upbringing children in problematic family - single parent family
TRNKOVÁ, Julie
This thesis deals with children´s education in problematic families directly, in family with one parent. The theoretical part is going to be taken as insight into given theme with identification of possible problems. Thesis will describe specifications of complete and incomplete families and then will focus on differences in educational styles or stances of complete and incomplete families. Afterwards it will point out different educational stances in cases if the parent is mother, or father. As default, the basic information about the family itself, it´s structure and it´s evolvement nowadays, are necessary. As well demarcation and definition of basic facts in context with theme of bachelor thesis are important. In the practical part it will be looked into these families, using combined research method. Also educational effect and influence of missing parent, or newly entering partner into the family will be analysed.
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