Vztah mezi délkou ocasních per a atraktivitou samců vlaštovky obecné

• Thesis title in Czech: Vztah mezi délkou ocasních per a atraktivitou samců vlaštovky obecné
• Thesis title in English: The association between tail streamer length and male atractiveness in barn swallows
• Key words: sexual dimorphism, sexual selection, ageing, senescence, ornament expression, nest initiation date, assortative mating
• English key words: sexual dimorphism, sexual selection, ageing, senescence, ornament expression, nest initiation date, assortative mating
• Academic year of topic announcement: 2020/2021
• Thesis type: diploma thesis
• Thesis language: čeština
• Department: Department of Zoology (31-170)
• Supervisor: prof. Mgr. Tomáš Albrecht, Ph.D.
• Author: hidden - assigned by the advisor
• Date of registration: 12.10.2020
• Date of assignment: 12.10.2020
• Date of electronic submission: 11.08.2022
• Date of proceeded defence: 09.09.2022
• Opponents: Mgr. Jaroslav Cepák, Ph.D.

Preliminary scope of work

The prolonged tail streamers of barn swallows represent a textbook example of a sexually selected trait. However, little is known about the temporal stability in the expression of this strait, and how this expression affects lifetime reproductive success (LRS) of individuals. The applicant will analyze data on the reproductive output of more than 150 individual barn swallows followed over their lifespan with the aim to evaluate the idea of a presumably clear positive association between the length of tail streamers and lifetime reproductive output (fitness) in male and female barn swallows.

Preliminary scope of work in English

The prolonged tail streamers of barn swallows represent a textbook example of a sexually selected trait. However, little is known about the temporal stability in the expression of this strait, and how this expression affects lifetime reproductive success (LRS) of individuals. The applicant will analyze data on the reproductive output of more than 150 individual barn swallows followed over their lifespan with the aim to evaluate the idea of a presumably clear positive association between the length of tail streamers and lifetime reproductive output (fitness) in male and female barn swallows.