Research Topics
| Timothy R BirkheadSummaryAffiliation: University of Sheffield Country: UK Publications
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Detail Information
Publications
No evidence for killer sperm or other selective interactions between human spermatozoa in ejaculates of different males in vitroH D Moore
Department of Obstetrics and Gynaecology, University of Sheffield, UK
Proc Biol Sci 266:2343-50. 1999..The incapacitation of rival sperm therefore seems an unlikely mechanism of sperm competition in humans...
Postcopulatory sexual selectionTimothy R Birkhead
Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
Nat Rev Genet 3:262-73. 2002....
Genic capture and the genetic basis of sexually selected traits in the zebra finchTimothy R Birkhead
Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, United Kingdom
Evolution 60:2389-98. 2006..We discuss the implications of our results for devising more rigorous but pragmatic tests of the genic capture hypothesis...
A comparison of SNPs and microsatellites as linkage mapping markers: lessons from the zebra finch (Taeniopygia guttata)Alexander D Ball
Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S10 2TN, UK
BMC Genomics 11:218. 2010..Linkage map marker order was validated by making comparisons to the assembled zebra finch genome sequence...
Sperm mobility determines the outcome of sperm competition in the domestic fowlT R Birkhead
Department of Animal and Plant Sciences, University of Sheffield, UK
Proc Biol Sci 266:1759-64. 1999..There was no evidence that female effects accounted for any of the variation in paternity...
Making sperm: design, quality control and sperm competitionTim R Birkhead
Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S I0 2TN, UK
Soc Reprod Fertil Suppl 65:175-81. 2007..We propose that these are all energy-saving adaptations...
Reproductive isolation in birds: postcopulatory prezygotic barriersTim R Birkhead
Department of Animal and Plant Sciences, The University of Sheffield, Sheffield, S10 2TN, UK
Trends Ecol Evol 22:266-72. 2007..Future research will serve the dual purpose of providing more detail of the mechanisms of both heterospecific and conspecific prezygotic processes...
Genetic effects on sperm design in the zebra finchT R Birkhead
Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
Nature 434:383-7. 2005..These results have important implications for the evolution of sperm in other taxa...
Nontransitivity of paternity in a birdT R Birkhead
Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, United Kingdom
Evolution 58:416-20. 2004..Regardless of the mechanism, nontransitivity of male reproductive success has important evolutionary consequences, including the maintenance of variation in male fitness...
Internal incubation and early hatching in brood parasitic birdsT R Birkhead
Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
Proc Biol Sci 278:1019-24. 2011....
A comparison of synteny and gene order on the homologue of chicken chromosome 7 between two passerine species and between passerines and chickenM C Hale
Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, UK
Cytogenet Genome Res 121:120-9. 2008..Some evidence of heterochiasmy, i.e. a difference in the recombination rate between the sexes, was observed...
Mitochondrial haplotype does not affect sperm velocity in the zebra finch Taeniopygia guttataJ A Mossman
Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
J Evol Biol 23:422-32. 2010..Therefore, there is no evidence that in this system mitochondrial mutations have asymmetric fitness effects on males and females, leading to genetic variation in male fertility that is blind to natural selection...
A linkage map of the zebra finch Taeniopygia guttata provides new insights into avian genome evolutionJ Stapley
Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, United Kingdom
Genetics 179:651-67. 2008..This whole-genome map is the first for any passerine and a valuable tool for the zebra finch genome sequence project and for studies of quantitative trait loci...
Female feral fowl eject sperm of subdominant malesT Pizzari
Department of Animal and Plant Sciences, University of Sheffield, UK
Nature 405:787-9. 2000..If this fails, females differentially eject ejaculates according to male status in the absence of any male manipulation and preferentially retain the sperm of dominant males...
The evolution of sperm morphometry in pheasantsS Immler
Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK
J Evol Biol 20:1008-14. 2007..Our study emphasizes the importance of female reproductive biology for the evolution of sperm morphometry particularly in sperm-storing taxa...
Sperm viability and sperm competition in insectsF M Hunter
Department of Animal and Plant Sciences, University of Sheffield, S10 2TN, Sheffield, United Kingdom
Curr Biol 12:121-3. 2002..Our results suggest that sperm viability is one of a suite of male adaptations to sperm competition in insects...
Simple sequence repeats in zebra finch (Taeniopygia guttata) expressed sequence tags: a new resource for evolutionary genetic studies of passerinesJon Slate
Department of Animal and Plant Sciences, University of Sheffield, Western Bank, Sheffield, S10 2TN, UK
BMC Genomics 8:52. 2007..Here we describe a bioinformatic analysis of zebra finch expressed sequence tag (EST) Genbank entries...
The sexually-selected sperm hypothesis: sex-biased inheritance and sexual antagonismT Pizzari
Animal and Plant Science Department, University of Sheffield, UK
Biol Rev Camb Philos Soc 77:183-209. 2002....
Ejaculate allocation by male sand martins, Riparia ripariaE H Nicholls
Department of Animal and Planet Sciences, University of Sheffield, Western Bank, Sheffield S10 2TN, UK
Proc Biol Sci 268:1265-70. 2001..A more detailed examination of the ejaculate patterns of individual males, achieved by the DNA profiling of ejaculates, provided additional evidence for strategic allocation of sperm...
