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Paternal care and brood reduction in a pipefish


Please use this identifier to cite or link to this item: http://hdl.handle.net/2077/30533

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Title: Paternal care and brood reduction in a pipefish
Authors: Sagebakken, Gry
E-mail: gry.sagebakken@bioenv.gu.se
Issue Date: 1-Nov-2012
University: University of Gothenburg. Faculty of Science
Institution: Department of Biological and Environmental Sciences ; Institutionen för biologi och miljövetenskap
Parts of work: I. Sagebakken, G., Ahnesjö, I., Mobley, K.B., Braga Goncalves, I. & Kvarnemo, C. (2010) Brooding fathers, not siblings, take up nutrients from embryos. Proceedings of the Royal Society B – Biological Sciences. 277: 971-977
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II. Sagebakken, G., Ahnesjö, I., Braga Goncalves, I. & Kvarnemo, C. (2011) Multiply mated males show higher embryo survival in a paternally caring fish. Behavioral Ecology. 22: 625-629.
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III. Sagebakken, G., Ahnesjö, I. & Kvarnemo, C. Male pipefish in good condition show less brood reduction. Submitted.

IV. Sagebakken, G., Ahnesjö, I. & Kvarnemo, C. Male care on a budget: fitness consequences and brood reduction in relation to brood size in a pipefish. Manuscript.

V. Sagebakken, G., Ahnesjö, I. Björnsson, B.Th. & Kvarnemo, C. Caring fathers and their energy reserves: a growth hormone experiment on pipefish. Manuscript.
Date of Defence: 2012-11-23
Disputation: Fredag den 23 november 2012 kl. 10.00 i Föreläsningssalen, Institutionen för biologi och miljövetenskap, Zoologihuset, Medicinaregatan 18A
Degree: Doctor of Philosophy
Publication type: Doctoral thesis
Keywords: Parental care
brood reduction
embryo survival
parental condition
filial cannibalism
post-mating sexual selection
HSI
sexual conflicts
Syngnathus typhle
male brooding
Abstract: From an evolutionary and adaptive perspective, the occurrence and extent of parental care in animals (investment in offspring beyond the genetic contribution) is expected to depend on an optimal (fitness-maximizing) balance of its costs and benefits. Males of the sex-role reversed broad-nosed pipefish, Syngnathus typhle, which care for eggs and embryos and may perform brood reduction, are particularly interesting in this respect. In this thesis, I explore paternal care in the broad-nosed pipefis... more
ISBN: 978-91-628-8532-8
URI: http://hdl.handle.net/2077/30533
Appears in Collections:Doctoral Theses from University of Gothenburg / Doktorsavhandlingar från Göteborgs universitet
Doctoral Theses / Doktorsavhandlingar Institutionen för biologi och miljövetenskap

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