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Oviposition site preferences of the threatened butterfly Parnassius mnemosyne: implications for conservation
Stockholm University, Faculty of Science, Department of Zoology.
2005 (English)In: Journal of Insect Conservation, ISSN 1366-638X, E-ISSN 1572-9753, Vol. 9, no 1, 21-27 p.Article in journal (Refereed) Published
Abstract [en]

Recent studies on the threatened clouded apollo butterfly, Parnassius mnemosyne, have identified suitable habitats on a large scale. More detailed knowledge on specific habitat requirements of ovipositing females is still needed. Some earlier observations suggest that females just drop their eggs without discrimination. This study suggests that females can be rather choosy in their oviposition site selection and that they actively search for oviposition sites with suitable vegetation structure. By identifying factors influencing female oviposition, such as distance to shrub, valuable knowledge is generated for restoration plans considered in the study area. This stresses the importance of proper management of extant habitats in order to prevent local extinctions of P. mnemosyne and it also highlights the need for data on specific oviposition requirements in butterfly conservation.

Place, publisher, year, edition, pages
Springer , 2005. Vol. 9, no 1, 21-27 p.
Keyword [en]
Butterfly conservation - Habitat requirements - Management - Microhabitat - Vegetation structure
National Category
Zoology
Identifiers
URN: urn:nbn:se:su:diva-23568DOI: 10.1007/s10841-004-3204-4OAI: oai:DiVA.org:su-23568DiVA: diva2:192860
Note
Part of urn:nbn:se:su:diva-354Available from: 2005-02-03 Created: 2005-02-03 Last updated: 2017-12-13Bibliographically approved
In thesis
1. Oviposition strategies in butterflies and consequences for conservation
Open this publication in new window or tab >>Oviposition strategies in butterflies and consequences for conservation
2005 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Oviposition strategies are an important component of life history evolution in insects. Oviposition is a complex behaviour, where females must locate suitable habitat patches, locate oviposition sites, evaluate the quality, and finally decide how many eggs to lay. In this thesis, I explore some factors that may influence oviposition strategies in female butterflies. It discusses oviposition strategies from large to fine scales and ends with a discussion on implications for conservation. In paper I we tested for local adaptations in oviposition preference and larval performance in Polyommatus icarus. The result suggests that this species is evolutionary conservative in its utilization of the tested host plants. In the second paper we investigated frequency-dependent host plant choice in Polygonia c-album and showed that females spent significantly more time, and laid more eggs, in patches with high frequency of the preferred host. The influence of nectar sources on host plant choice in P. icarus was tested in paper III, females preferred ovipositing on host plants with flowers and after feeding. In paper IV we investigated oviposition “mistakes” in P. c-album and found differences in discrimination of hosts and non-hosts. Further, we showed that P. c-album butterflies are capable of responding to host quality by increasing clutch sizes on a high ranked host (paper V). Finally, in paper VI I explored how female oviposition behaviour can influence habitat management for a threatened butterfly species, Parnassius mnemosyne, by doing an observational field study on oviposition site preferences. This thesis highlights oviposition as a stepwise process and show that female discrimination is important at a multitude of levels with implications for oviposition strategies.

Place, publisher, year, edition, pages
Stockholm: Zoologiska institutionen, 2005. 30 p.
National Category
Ecology
Identifiers
urn:nbn:se:su:diva-354 (URN)91-7155-011-9 (ISBN)
Public defence
2005-02-25, sal G, Arrheniuslaboratorierna, Svante Arrhenius väg 14-18, Stockholm, 10:00
Opponent
Supervisors
Available from: 2005-02-03 Created: 2005-02-03Bibliographically approved

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