Sökning: "Mate Choice"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden Mate Choice.

  1. 1. Color and wing size: identifying targets of sexual selection in Drosophila melanogaster

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Ellen Pääjärvi Våg; [2024]
    Nyckelord :Sexual selection; wing interference patterns; Drosophila melanogaster; visual signaling; sexuell selektion; vingmönster; bananfluga; visuell signalering;

    Sammanfattning : This study explores the relationship between wing size, coloration, and reproductivesuccess in Drosophila melanogaster, fruit flies. Sexual selection, a key aspect ofevolutionary biology, often involves visual signaling as a means of displaying geneticinformation. LÄS MER

  3. 2. Differences in velocity between the sexes and stages of courtship in a dance fly

    Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Författare :Filip Myllyaho; [2022-02-17]
    Nyckelord :Dansfluga; Hilara maura; höghastighetskamera; partner-val; Dance fly; Hilara maura; high-speed camera; mate choice;

    Sammanfattning : Dance flies (Diptera: Empididae: Empidinae) are famous for their elaborate mating behaviour, which can be broken down to three distinct stages in adults: hunting, swarming, and mating. In many species, males hunt for prey that they present as nuptial gifts to recipient females in swarms, after which the pair will copulate in the air or after landing on nearby vegetation. LÄS MER

  4. 3. Assortativ parning hos sik (Coregonus lavaretus)

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Joni Riihimaa; [2022]
    Nyckelord :assortative mating; European whitefish; reproductive isolation;

    Sammanfattning : European whitefish (Coregonus lavaretus) forms reproductively isolated sub-populations with different body sizes in the lakes where northern pike (Esox lucius) exists. It has been hypothesized that the initial reproductive isolation between ecotypes arises through size-assortative mate choice or because small and large individuals arrive to the spawning grounds at different times. LÄS MER

  5. 4. Diversification of predators in multi-trophic communities: A trait-based theoretical approach

    Master-uppsats, Lunds universitet/Examensarbeten i bioinformatik

    Författare :Julio Antonio Ayala Lopez; [2022]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : One of the main challenges in ecology and evolutionary biology is to understand how biodiversity emerges and is maintained, given the complexity of ecological and evolutionary processes combined. Understanding how multi-trophic interactions occur from a theoretical perspective is highly relevant for our understanding of diversification in complex ecosystems. LÄS MER

  7. 5. Polyandry and genetic diversity in populations of Pholidoptera griseoaptera along an environmental gradient

    Kandidat-uppsats, SLU/Dept. of Ecology

    Författare :Matilda Jutzeler; [2019]
    Nyckelord :polyandry; genetic diversity; multiple mating; microsatellites; nuptial gift; phenotype;

    Sammanfattning : Polyandry is a common mating pattern in different insect species and it leads to increased genetic diversity in the offspring and prevents inbreeding in populations. According to the theory of mate choice, mates should choose a partner that will increase heterozygosity in their offspring. LÄS MER