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Showing result 1 - 5 of 34 essays matching the above criteria.
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1. Color and wing size: identifying targets of sexual selection in Drosophila melanogaster
University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)Abstract : 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. READ MORE
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2. Differences in velocity between the sexes and stages of courtship in a dance fly
University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskapAbstract : 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. READ MORE
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3. The relative effect of gained extra-pair paternity versus ensured within-pair paternity on male fitness in collared flycatchers, Ficedula albicollis
University essay from Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : Variation in a male ability to gain extra-pair paternity and maintain within-pair paternity are important sources of variation in male fitness in socially monogamous species and thus become the resource of sexual selection on male secondary sexual traits. While the maximum possible number of offspring sired within the social pair-bond is limited by the female’s clutch size, the possible number of sired extra-pair young could in theory by much higher. READ MORE
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4. Diversification of predators in multi-trophic communities: A trait-based theoretical approach
University essay from Lunds universitet/Examensarbeten i bioinformatikAbstract : 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. READ MORE
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5. Sexually segregated habitat selection in Daubenton’s bat Myotis daubentonii
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : Sexual segregation is a phenomenon present in many vertebrate taxa, including the bat order Chiroptera. Sexual segregation is a social and/or habitat separation based on sex and is driven by varying causes such as sexual dimorphism, resource and physiological limitations, predator avoidance and many other factors. READ MORE