Change search
ReferencesLink to record
Permanent link

Direct link
Mate – guarding in Siberian jay
Karlstad University.
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Mate-guarding is performed by many monogamous species, a method used by individuals to physically prevent competitors of the same sex from mating with their partners. This behaviour is most often displayed during the fertile period (i.e. when females can be fertilized). In this study I focused on the genetically and socially monogamous species, the Siberian jay (Perisoreus infaustus), in which I observed mate-guarding behaviour. The Siberian jays did change their behaviour and increased their aggression in the fertile period, a sign of mate-guarding. This result also suggests that even socially and genetically monogamous species do increase their aggression during the fertile period. This indicates that fidelity still requires an investment in mate-guarding to limit extra-pair mating opportunities. Mate-guarding should then be possible to find in species where there is at least a theoretical opportunity for extra-pair matings.

Abstract [sv]

Mate-guarding är en metod använd utav många monogama arter, metoden används för att fysiskt hålla konkurrenter utav samma kön borta ifrån sin partner för att försäkra sin egen parning. Denna metod beskådas oftast under tiden honan är fertil. I denna studie fokuserade jag på den genetiska och sociala monogama arten Lavskrika(Perisoreus infaustus) där jag observerade mate-guarding beteende. Lavskrikans beteende förändrades mellan perioden då honan icke var receptiv och hon var fertil, aggressionen ökade för båda könen under den fertila perioden vilket är ett tecken utav mate-guarding beteende. Detta resultat föreslår att socialt och genetiskt monogama arter ökar sin aggression under tiden honan är fertil, det föreslår även att trofasthet fortfarande kräver hög investering utav mate-guarding för att minska riskerna utav otrohet. Mate-guarding beteende borde då finnas hos arter med en teoretisk möjlighet för otrohet.

Place, publisher, year, edition, pages
2016.
Keyword [en]
Siberian Jay, Mate guarding
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:kau:diva-45419OAI: oai:DiVA.org:kau-45419DiVA: diva2:954532
Subject / course
Biology
Educational program
Biology programme, 180 hp
Supervisors
Examiners
Available from: 2016-09-07 Created: 2016-08-22 Last updated: 2016-09-07Bibliographically approved

Open Access in DiVA

fulltext(886 kB)0 downloads
File information
File name FULLTEXT01.pdfFile size 886 kBChecksum SHA-512
107a2283e0fa12578a887afe80e32b1ff7f97c20a38016e04e69af000eee4598daf46c5826fa2c9a8f18aaf81d95e8092c525211e66fb76ef971c8537b13a301
Type fulltextMimetype application/pdf

By organisation
Karlstad University
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 3 hits
ReferencesLink to record
Permanent link

Direct link