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Forced copulation hos gräsänder (Anas platyrhynchos) i Almedalen, Visby
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Biology Education Centre.
2014 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

In mallards (Anas platyrhynchos) a behaviour called forced copulation can be observed. Forced copulation means that one or several males chase a female, grasp her, mount her and tries to mate with her while she is putting up resistance. The study took place in the park area of Almedalen in Visby and investigated if there were any differences in frequencies regarding forced copulation on land and in water, and if there were any differences in frequencies regarding how often a male defended his mate from one or several males who were trying to subject her to forced copulation. The study also investigated if unpaired females were more often subjected to forced copulation than paired females. The results of the study showed no statistical significant differences in any of these areas.

Place, publisher, year, edition, pages
2014. , 14 p.
Keyword [sv]
Beteendeekologi, gräsand, parningsbeteende, reproduktion, Anas platyrhynchos
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-227460OAI: oai:DiVA.org:uu-227460DiVA: diva2:729693
Educational program
Ecology Programme (HGO)
Presentation
Campus Gotland, Cramérgatan 3, Visby (Swedish)
Supervisors
Examiners
Available from: 2014-06-30 Created: 2014-06-26 Last updated: 2014-06-30Bibliographically approved

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Examensarbete Forced copulation.pdf(334 kB)107 downloads
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CiteExportLink to record
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  • apa
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