Fabrice Helfenstein
Fabrice Helfenstein
Department of Clinial Research, University of Bern
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Sperm of colourful males are better protected against oxidative stress
F Helfenstein, S Losdat, AP Møller, JD Blount, H Richner
Ecology Letters 13 (2), 213-222, 2010
Corticosterone: effects on feather quality and deposition into feathers
S Jenni‐Eiermann, F Helfenstein, A Vallat, G Glauser, L Jenni
Methods in Ecology and Evolution 6 (2), 237-246, 2015
Sperm morphology, swimming velocity, and longevity in the house sparrow Passer domesticus
F Helfenstein, M Podevin, H Richner
Behavioral Ecology and Sociobiology 64 (4), 557-565, 2010
A nation‐wide survey of neonicotinoid insecticides in agricultural land with implications for agri‐environment schemes
S Humann‐Guilleminot, ŁJ Binkowski, L Jenni, G Hilke, G Glauser, ...
Journal of Applied Ecology 56 (7), 1502-1514, 2019
Colonies as byproducts of commodity selection
RH Wagner, E Danchin, T Boulinier, F Helfenstein
Behavioral Ecology 11 (5), 572-573, 2000
Female choice of young sperm in a genetically monogamous bird
RH Wagner, F Helfenstein, E Danchin
Proceedings of the Royal Society of London. Series B: Biological Sciences …, 2004
Assortative mating and sexual size dimorphism in Black-legged Kittiwakes
F Helfenstein, E Danchin, RH Wagner
Waterbirds 27 (3), 350-354, 2004
A large-scale survey of house sparrows feathers reveals ubiquitous presence of neonicotinoids in farmlands
S Humann-Guilleminot, S Clément, J Desprat, ŁJ Binkowski, G Glauser, ...
Science of the Total Environment 660, 1091-1097, 2019
Functions of courtship feeding in black-legged kittiwakes: natural and sexual selection
F Helfenstein, RH Wagner, E Danchin, JM Rossi
Animal Behaviour 65 (5), 1027-1033, 2003
Immune activation reduces sperm quality in the great tit
S Losdat, H Richner, JD Blount, F Helfenstein
PLoS ONE 6 (7), e22221, 2011
Multiple deleterious effects of experimentally aged sperm in a monogamous bird
J White, RH Wagner, F Helfenstein, SA Hatch, H Mulard, LC Naves, ...
Proceedings of the National Academy of Sciences USA 105 (37), 13947-13952, 2008
Low frequency of extra-pair paternity and high frequency of adoption in black-legged kittiwakes
F Helfenstein, C Tirard, E Danchin, RH Wagner
The Condor 106 (1), 149-155, 2004
Nestling begging intensity and parental effort in relation to prelaying carotenoid availability
F Helfenstein, A Berthouly, M Tanner, F Karadas, H Richner
Behavioral Ecology 19 (1), 108-115, 2008
Evidence that pairing with genetically similar mates is maladaptive in a monogamous bird
H Mulard, E Danchin, SL Talbot, AM Ramey, SA Hatch, JF White, ...
BMC Evolutionary Biology 9, 1-12, 2009
Nestling erythrocyte resistance to oxidative stress predicts fledging success but not local recruitment in a wild bird
S Losdat, F Helfenstein, JD Blount, V Marri, L Maronde, H Richner
Biology Letters, rsbl20120888, 2012
Reproductive effort transiently reduces antioxidant capacity in a wild bird
S Losdat, F Helfenstein, B Gaude, H Richner
Behavioral Ecology 22 (6), 1218-1226, 2011
Cellular immune response, stress resistance and competitiveness in nestling great tits in relation to maternally transmitted carotenoids
A Berthouly, F Helfenstein, H Richner
Functional Ecology 21 (2), 335-343, 2007
Microbiome affects egg carotenoid investment, nestling development and adult oxidative costs of reproduction in Great tits
S Jacob, N Parthuisot, A Vallat, F Ramon‐Portugal, F Helfenstein, P Heeb
Functional Ecology 29 (8), 1048-1058, 2015
A sublethal dose of the neonicotinoid insecticide acetamiprid reduces sperm density in a songbird.
S Humann-Guilleminot, CT de Montaigu, J Sire, S Grünig, O Gning, ...
Environmental research 177, 108589, 2019
Between‐male variation in sperm size, velocity and longevity in sand martins Riparia riparia
F Helfenstein, T Szép, Z Nagy, B Kempenaers, RH Wagner
Journal of Avian Biology 39 (6), 647-652, 2008
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