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Faculty of Biology and Medicine

Department of Ecology and Evolution

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Dr. Paul Béziers

Research interests

I study barn owls from an integrative perspective. My research line focuses on evolutionary endocrinology. I use techniques from endocrinology and molecular biology to behavioural observations. I am interested in questions related to stress (CORT), fitness and life history trade-offs.

Curriculum vitae

Publications

Publications | Masters and Phd thesis

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Publications

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2020 | 2019 | 2017 | 2016 | 2015 | 2014 |

2020

Glucocorticoid levels are linked to lifetime reproductive success and survival of adult barn owls.

Béziers P., Korner-Nievergelt F., Jenni L., Roulin A., Almasi B., 2020/12. Journal of evolutionary biology, 33 (12) pp. 1689-1703. Peer-reviewed.

[DOI][WoS][Pmid][serval:BIB_2BF375164197]

2019

Expression of glucocorticoid and mineralocorticoid receptor genes co-varies with a stress-related colour signal in barn owls.

Béziers P., Ducrest A.L., San-Jose L.M., Simon C., Roulin A., 2019/11/01. General and comparative endocrinology, 283 p. 113224. Peer-reviewed.

[DOI][WoS][Pmid][serval:BIB_13917B676290]

Baseline and stress-induced corticosterone levels are heritable and genetically correlated in a barn owl population.

Béziers P., San-Jose L.M., Almasi B., Jenni L., Roulin A., 2019/09. Heredity, 123 (3) pp. 337-348. Peer-reviewed.

[DOI][WoS][Pmid][serval:BIB_2DD42E77D69B]

preview resource BIB_C2FAF752F8AF.P001

Differential fitness effects of moonlight on plumage colour morphs in barn owls.

San-Jose L.M., Séchaud R., Schalcher K., Judes C., Questiaux A., Oliveira-Xavier A., Gémard C., Almasi B., Béziers P., Kelber A. et al., 2019/09. Nature ecology & evolution, 3 (9) pp. 1331-1340. Peer-reviewed.

[URN][DOI][Pmid][serval:BIB_C2FAF752F8AF]

2017

Circulating testosterone and feather-gene expression of receptors and metabolic enzymes in relation to melanin-based colouration in the barn owl.

Béziers P., Ducrest A.L., Simon C., Roulin A., 2017. General and Comparative Endocrinology, 250 pp. 36-45. Peer-reviewed.

[DOI][WoS][Pmid][serval:BIB_7766D8425557]

Nocturnal, diurnal and bimodal patterns of locomotion, sibling interactions and sleep in nestling Barn Owls

Scriba M.F., Dreiss A.N., Henry I., Béziers P., Ruppli C., Ifrid E., Ducouret P., Da Silva A., Monstiers B. des, Vyssotski A. L. et al., 2017. Journal of Ornithology, 158 (4) pp. 1001-1012. Peer-reviewed.

[DOI][WoS][serval:BIB_A3EBB69D6C61]

2016

preview resource BIB_A2C389645188.P001

Double brooding and offspring desertion in the barn owl (Tyto alba)

Béziers P., Roulin A., 2016. Journal of Avian Biology, 47 (2) pp. 235-244. Peer-reviewed.

[URN][DOI][WoS][serval:BIB_A2C389645188]

preview resource BIB_9EBE73744706.P001

Social huddling and physiological thermoregulation are related to melanism in the nocturnal barn owl.

Dreiss A.N., Séchaud R., Béziers P., Villain N., Genoud M., Almasi B., Jenni L., Roulin A., 2016. Oecologia, 180 (2) pp. 371-381. Peer-reviewed.

[URN][DOI][WoS][Pmid][serval:BIB_9EBE73744706]

2015

preview resource BIB_924ACAAB73E9.P001

Agricultural land use and human presence around breeding sites increase stress-hormone levels and decrease body mass in barn owl nestlings.

Almasi B., Béziers P., Roulin A., Jenni L., 2015. Oecologia, 179 (1) pp. 89-101. Peer-reviewed.

[URN][DOI][WoS][Pmid][serval:BIB_924ACAAB73E9]

preview resource BIB_D492AB497E8D.P001

Effect of the MC1R gene on sexual dimorphism in melanin-based colorations.

San-Jose L.M., Ducrest A.L., Ducret V., Béziers P., Simon C., Wakamatsu K., Roulin A., 2015. Molecular Ecology, 24 (11) pp. 2794-2808. Peer-reviewed.

[URN][DOI][WoS][Pmid][serval:BIB_D492AB497E8D]

2014

Stronger transferability but lower variability in transcriptomic- than in anonymous microsatellites: evidence from Hylid frogs.

Dufresnes C., Brelsford A., Béziers P., Perrin N., 2014. Molecular Ecology Resources, 14 (4) pp. 716-725. Peer-reviewed.

[DOI][WoS][Pmid][serval:BIB_EF2078A37483]

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Phd thesis

Publications (1)

preview resource BIB_6BB9D25340E2.P001

Heritability and fitness value of glucocorticoid hormones and the interaction between the steroidogenic pathway and the melanocortin system in the Barn owl

Béziers Paul, 2017. 156, Université de Lausanne, Faculté de biologie et médecine, Roulin Alexandre (dir.).

[URN][serval:BIB_6BB9D25340E2]

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paul.beziers[@]unil.ch

Member of Roulin's group

Biophore - CH-1015 Lausanne
Switzerland
Tel. +41 21 692 41 60

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