Peer-Reviewed Publications


Ornaments are equally informative in male and female birds.

Nolazco, S., Delhey, K., Nakagawa, S., Peters, A. 2022. Ornaments are equally informative in male and female birds. Nature Communications 13(1):5917. doi:10.1038/s41467-022-33548-7.


Hot and dry conditions predict shorter nestling telomeres in an endangered songbird: implications for population persistence?

Eastwood, J.R., Connallon, T., Delhey, K., Hall, M.L., Teunissen, N., Kingma,S.A.,  Verhulst, S., Peters. A. 2022.  Hot and dry conditions predict shorter nestling telomeres in an endangered songbird: implications for population persistence? PNAS. Doi:10.1073/pnas.2122944119.


Predator suppression by invasive toads does not cascade to prey due to predation by alternate predators.

Teunissen, N., Peters, A. 2022. Predator suppression by invasive toads does not cascade to prey due to predation by alternate predators. Biological Invasions 24, pp. 2723–2733. Doi:10.1007/s10530-022-02808-4


Telomere length declines with age, but relates to immune function independent of age in a wild passerine.

Roast, M.J., Eastwood, J.R., Hidalgo Aranzamendi, N., Fan, M., Teunissen, N., Verhulst, S., Peters, A.  2022. Telomere length declines with age, but relates to immune function independent of age in a wild passerine. Royal Society Open Science 9 (4), 212012. Doi:10.1098/rsos.212012.


Cooperative breeding and the emergence of multilevel societies in birds.

Camerlenghi, E., McQueen, A., Delhey, K., Cook, C.N., Kingma, S.A., Farine, D.R., Peters, A.,  2022. Cooperative breeding and the emergence of multilevel societies in birds. Ecology Letters 25, pp 766–777. Doi:10.1111/ele.13950


Telomere dynamics in the first year of life, but not later in life, predict lifespan in a wild bird.

Sheldon, E., Eastwood, J.R.,  Teunissen, N., Roast, M.J., Fan, M., Hall, M.L., Hidalgo Aranzamendi, N., Kingma, S.A., Verhulst, S., Peters. A. 2022. Telomere dynamics in the first year of life, but not later in life, predict lifespan in a wild bird. Molecular Ecology, 31, 6008– 6017. Doi:10.1111/mec.16296.


No Evidence for Constitutive Innate Immune Senescence in a Longitudinal Study of a Wild Bird.

Roast, M.J., Hidalgo Aranzamendi, N.,  Teunissen, N.,  Fan, M., Verhulst, S., Peters, A. 2022. No Evidence for Constitutive Innate Immune Senescence in a Longitudinal Study of a Wild Bird. Physiological and Biochemical Zoology 2022 95, pp 54-65. Doi:10.1086/717937.


Context-dependent social benefits drive cooperative predator defence.

Teunissen, N., Kingma, S.A., Fan, M., Roast, M.J., Peters, A.,  2021. Context-dependent social benefits drive cooperative predator defence. Current Biology 31, pp 4120-4126. Doi:10.1016/j.cub.2021.06.070.


Variability, heritability and condition-dependence of the multidimensional male colour phenotype in a passerine bird.

Fan, M., Hall, M.L., Roast, M.J., Peters, A., Delhey, K.  2021.Variability, heritability and condition-dependence of the multidimensional male colour phenotype in a passerine bird. Heredity 127, pp 300-311. Doi:10.1038/s41437-021-00453-6.


The evolution of delayed dispersal and different routes to breeding in social birds.

Kingma, S.A., Bebbington, K., Teunissen, N., Peters, A., Komdeur., J. 2021. The evolution of delayed dispersal and different routes to breeding in social birds. Advance Study Behavior 53, pp 163-224. Doi: 10.1016/bs.asb.2021.03.003


Physiological costs and age constraints of a sexual ornament: an experimental study in a wild bird.

McQueen, A., Delhey, K., Crino, O., Szecsenyi, B., Roast, M.J., Peters, A. 2021. Physiological costs and age constraints of a sexual ornament: an experimental study in a wild bird. Behavioral Ecology 32, pp 327-338. Doi:10.1093/beheco/araa143


Male fairy-wrens produce and maintain vibrant breeding colours irrespective of individual quality.

McQueen, A., Delhey, K., Barzan, F.. Naimo, A.C., Peters, A.  2021. Male fairy-wrens produce and maintain vibrant breeding colours irrespective of individual quality. Behavioral Ecology 32, pp 178-187. Doi:10.1093/beheco/araa128


Fitness outcomes in relation to individual variation in constitutive innate immune function.

Roast, M.J., Fan, M., Teunissen, N., Hall, M.D., Peters, A. 2020. Fitness outcomes in relation to individual variation in constitutive innate immune function. Proceedings of the Royal Society B 1938: 20201997. Doi:10.1098/rspb.2020.1997


Rewilding immunology.

Flies, A.S., Wild Comparative Immunology Consortium. 2020. Rewilding immunology. Science 369(6499), pp  37-38. Doi:10.1126/science.abb8664.


Carotenoid-based plumage colour saturation increases with temperature in Australian passerines.

Prasetya, A., Peters, A., Delhey, K. 2020. Carotenoid-based plumage colour saturation increases with temperature in Australian passerines. Journal of Biogeography 47, pp 2671–2683. Doi:10.1111/jbi.13968


Nest defence and offspring provisioning in a cooperative bird: individual subordinates vary in total contribution, but no division of tasks among breeders and subordinates.

Teunissen, N., Kingma, S.A., Peters, A. 2020. Nest defence and offspring provisioning in a cooperative bird: individual subordinates vary in total contribution, but no division of tasks among breeders and subordinates. Behavioral Ecology and Sociobiology 74, pp 1-9. Doi:10.1007/s00265-020-02877-2.


Predator defense is shaped by risk, brood value and social group benefits in a cooperative breeder.

Teunissen, N., Kingma, S.A., Peters, A.  2020. Predator defense is shaped by risk, brood value and social group benefits in a cooperative breeder. Behavioral Ecology 31, pp 761–771. Doi:10.1093/beheco/araa012


No evidence for an adaptive role of early molt into breeding plumage in a female fairy wren.

Nolazco, S., Hall, M.L., Kingma, S.A., Delhey, K., Peters, A. 2020. No evidence for an adaptive role of early molt into breeding plumage in a female fairy wren. Behavioral Ecology 31, pp 411-420. Doi:10.1093/beheco/arz203.


Immunosenescence in the wild: meta-analysis and outlook.

Peters, A., Delhey, K., Nakagawa, S., Aulsebrook, A., Verhulst, S. 2019. Immunosenescence in the wild: meta-analysis and outlook. Ecology Letters 22,  pp 1709-1722. Doi:10.1111/ele.13343.


Early life telomere length predicts lifespan and lifetime reproductive success in a wild bird.

Eastwood, J.R., Hall, M.L., Teunissen, N., Kingma, S.A., Hidalgo Aranzamendi, N., Fan, M., Roast, M.J., Verhulst, S., Peters, A. 2019. Early life telomere length predicts lifespan and lifetime reproductive success in a wild bird. Molecular Ecology 28, pp 1127–1137. Doi:10.1111/mec.15002.


Rapid plastic breeding response to rain matches peak prey abundance in a tropical bird.

Hidalgo Aranzamendi, N., Hall, M.L., Kingma, S.A., van de Pol, M., Peters, A.,  2019. Rapid plastic breeding response to rain matches peak prey abundance in a tropical bird. Journal of Animal Ecology 88, pp 1799-1811.  Doi:10.1111/1365-2656.13068


Short-term climate variation drives baseline innate immune function and stress in a tropical bird: a reactive scope perspective.

Roast, M.J., Aulsebrook, A.,  Fan, M., Hidalgo Aranzamendi, N., Teunissen, N.,  Peters, A.,  2019. Short-term climate variation drives baseline innate immune function and stress in a tropical bird: a reactive scope perspective. Physiological and Biochemical Zoology 92: 140–151. Doi:10.1086/702310.


Persistent negligible avian malaria in a tropical species despite high community prevalence.

Eastwood, J., Peacock, L., Hall, M.L., Roast, M.J., Murphy, S., Gonçalves da Silva, A., Peters, A. 2019. Persistent negligible avian malaria in a tropical species despite high community prevalence. International Journal for Parasitology: Parasites and Wildlife 8, pp 88-93. Doi:10.1016/j.ijppaw.2019.01.001.


Evolutionary drivers of seasonal plumage colours: colour change by moult correlates with sexual selection, predation risk and seasonality across passerines.

McQueen, A., Kempenaers, B., Dale, J., Valcu, M., Emery, Z.T., Dey, C.J., Peters, A. Delhey, K. 2019. Evolutionary drivers of seasonal plumage colours: colour change by moult correlates with sexual selection, predation risk and seasonality across passerines. Ecology Letters 22, pp 1838-1849. Doi:10.1111/ele.13375.


Extreme competence: keystone hosts of infection.

Martin, L.B., Addison, B., Bean, A.G.D., Buchanan, K.L., Crino, O.L., Eastwood, J.R., Flies, A.S., Hamede, R., Hill, G.E., Klaassen, M., Koch, R.E., Martens, J.M., Napolitano, C., Narayan, E.J., Peacock, L., Peel, A.J., Peters, A., Raven, N., Risely, A., Roast, M.J., Rollins, L.A., Ruiz-Aravena, M., Selechnik, D., Stokes, H.S., Ujvari, B., Grogan, L.F. 2019. Extreme competence: keystone hosts of infection. Trends Ecology Evolution 34, pp 303-314. Doi:10.1016/j.tree.2018.12.009.


Australian songbird body size tracks climate variation: 82 species over 50 years.

Gardner, J.L., Amano, T., Peters, A.,  Sutherland, W.J., Mackey, B., Joseph, L., Stein, J., Ikin, K., Little, R., Smith, J., Symonds, M.R.E. 2019. Australian songbird body size tracks climate variation: 82 species over 50 years. Proceedings of the Royal Society B 286, pp 1916. Doi:10.1098/rspb.2019.2258


Multiple components of feather microstructure contribute to structural plumage colour diversity in fairy-wrens.

Fan, M., D’Alba, L., Shawkey, M.D., Peters, A., Delhey, K. 2019. Multiple components of feather microstructure contribute to structural plumage colour diversity in fairy-wrens. Biological Journal of the Linnean Society 128,  pp 550-568.  Doi:10.1093/biolinnean/blz114.


Conspicuous plumage and predation risk: A continent-wide examination using 3D printed model songbirds.

Cain, K.E., Hall, M.L., Medina, I., Leitao, A.V., Delhey, K., Brouwer, L., Peters, A., Pruett-Jones, S., Webster, M.S., Langmore, N.E., Mulder, R.A. 2019. Conspicuous plumage and predation risk: A continent-wide examination using 3D printed model songbirds. The American Naturalist 93, pp 359-372. Doi:10.1086/701632


More than kin: subordinates foster strong social bonds with close relatives and potential mates in a group-living bird.

Teunissen, N., Kingma, S.A., Hall, M.L., Hidalgo Aranzamendi, N., Komdeur, J., Peters, A. 2018. More than kin: subordinates foster strong social bonds with close relatives and potential mates in a group-living bird. Behavioral Ecology 29, pp 1316–1324. Doi:10.1093/beheco/ary120


From ornament to armament or loss of function? Breeding plumage acquisition in a genetically monogamous bird.

Fan, M., Teunissen, N.,  Hall M.L. , Hidalgo Aranzamendi, N., Kingma, S.A., Roast, M.J., Delhey K., Peters, A.  2018. From ornament to armament or loss of function? Breeding plumage acquisition in a genetically monogamous bird. Journal Animal Ecology 87, pp 1274–1285. Doi:10.1111/1365-2656.12855


Increasing the accuracy and precision of relative telomere length estimates by RT qPCR.

Eastwood, J., Mulder, E., Verhulst, S., Peters, A. 2018. Increasing the accuracy and precision of relative telomere length estimates by RT qPCR. Molecular Ecology Resources 18, pp 68-78. Doi:10.1111/1755-0998.12711.


Bright birds are cautious: seasonally conspicuous plumage prompts risk avoidance in male superb fairy-wrens.

McQueen, A., Naimo, A.C., Teunissen, N., Magrath, R.D., Delhey, K., Peters, A. 2017. Bright birds are cautious: seasonally conspicuous plumage prompts risk avoidance in male superb fairy-wrens. Proceedings of the Royal Society B 284 (1857), 20170446. Doi:10.1098/rspb.2017.0446.


No fitness benefits of early molt in a fairy-wren: relaxed sexual selection under genetic monogamy?

Fan, M., Hall, M.L., Kingma, S.A., Mandeltort, L.M., Delhey, K., Peters, A. 2017. No fitness benefits of early molt in a fairy-wren: relaxed sexual selection under genetic monogamy? Behavioral Ecology, 28, pp 1055-1067. Doi:10.1093/beheco/arx065.


Are long-term widespread avian body size changes related to food availability?

Little, R., Gardner, J.L., Amano, T., Delhey, K., Peters, A. 2017. Are long-term widespread avian body size changes related to food availability? A test using contemporaneous changes in carotenoid-based colour. Ecology and Evolution 7, pp 3157-3166. Doi:10.1002%2Fece3.2739.


The effect of colour producing mechanisms on plumage sexual dichromatism in passerines and parrots.

Delhey, K., Peters, A. 2017. The effect of colour producing mechanisms on plumage sexual dichromatism in passerines and parrots. Functional Ecology 31, pp 903-914. Doi:10.1111/1365-2435.12796.


Complex nest decorations of a small brown bird in the Pampas.

Delhey, K., Carrizo, M., Mahler, B., Peters, A. 2017. Complex nest decorations of a small brown bird in the Pampas. Frontiers in Ecology and the Environment 15, pp 406-407. Doi:10.1002/fee.1525.


Conspicuous plumage colours are highly variable.

Delhey, K., Szecsenyi, B., Nakagawa, S., Peters, A. 2017. Conspicuous plumage colours are highly variable. Proceedings of the Royal Society B 284 2016.2593. Doi:10.1098/rspb.2016.2593.


Habitat structure is linked to the evolution of plumage colour in female, but not male, fairy-wrens.

Medina, I., Delhey, K., Peters, A., Cain, K.E., Hall, M.L., Mulder, R.A., Langmore, N. 2017. Habitat structure is linked to the evolution of plumage colour in female, but not male, fairy-wrens. BMC Evolutionary Biology 17, pp 35.  Doi:10.1186/s12862-016-0861-3.


Personality and innate immune defenses in a wild bird: evidence for the pace-of-life hypothesis.

Jacques-Hamilton, R., Hall, M.L., Buttemer, W.A., Matson, K.D., Gonҫalves da Silva, A., Mulder, R.A., Peters, A. 2017. Personality and innate immune defenses in a wild bird: evidence for the pace-of-life hypothesis. Hormones and Behavior 88, pp 31-40. Doi:10.1016/j.yhbeh.2016.09.005


Conservation implications of anthropogenic impacts on visual signalling and camouflage.

Delhey, K.,  Peters. A. 2017. Conservation implications of anthropogenic impacts on visual signalling and camouflage. Conservation Biology 31, pp 30-39. Doi:10.1111/cobi.12834


Multiple hypotheses explain variation in extra-pair paternity at different levels in a single bird family.

Brouwer, L., van de Pol, M., Hidalgo Aranzamendi, N., Bain, G., Baldassarre, D.T., Colombelli-Négrel, D., Enbody, E., Gielow, K., Hall, M.L., Johnson, A.E., Karubian, J., Kingma, S.A., Kleindorfer, S., Louter, M., Mulder, R.A., Peters, A., Pruett-Jones, S., Tarvin, K.A., Thrasher, D.J., Varian-Ramos, C.W., Webster, M.S., Cockburn, A.  2017. Multiple hypotheses explain variation in extra-pair paternity at different levels in a single bird family. Molecular Ecology 26, pp 6717–6729. Doi:10.1111/mec.14385.


Incest, extra-pair paternity and territory quality drive divorce in a year-round territorial bird.

Hidalgo Aranzamendi, N., Hall, M.L., Kingma, S.A., Sunnucks, P., Peters, A. 2016. Incest, extra-pair paternity and territory quality drive divorce in a year-round territorial bird. Behavioral Ecology 27, pp 1808-1819. Doi:10.1093/beheco/arw101.


Individual and demographic consequences of reduced body condition following repeated exposure to high temperatures.

Gardner, J.L., Amano, T.,  Sutherland, W.J., Clayton, M., Peters, A.  2016. Individual and demographic consequences of reduced body condition following repeated exposure to high temperatures. Ecology 97, pp 786–795. http://www.jstor.org/stable/24703412.


A practical framework to analyse variation in animal colours using visual models.

Delhey, K., Delhey, V., Kempenaers, B.,  Peters, A.  2015. A practical framework to analyse variation in animal colours using visual models. Behavioral Ecology 26, pp 367–375. Doi:10.1093/beheco/aru198


The influence of nest site choice and predator sensory cues on nest success in the Crimson Finch, Neochmia phaeton.

Soanes, R., Peters, A., Delhey K., Doody, J.S. 2015. The influence of nest site choice and predator sensory cues on nest success in the Crimson Finch, Neochmia phaeton. EMU – Austral Ornithol 115, pp 317-325, Doi:10.1071/MU14046.


Are natural history collections coming to an end as time-series?

Gardner, J.L., Amano, T.,  Sutherland,W.J., Joseph, L., Peters, A.  2014. Are natural history collections coming to an end as time-series? Front Ecol Environ 12, pp 436-438. Doi:10.1890/14.WB.012


Temporal patterns of avian body size reflect linear size responses to broadscale environmental change over the last 50 years.

Gardner, J.L., Amano, T., Blackwell, P.R.Y., Ikin, K., Sutherland, W.J., Peters, A.  2014. Temporal patterns of avian body size reflect linear size responses to broadscale environmental change over the last 50 years. J Avian Biol 45, pp 529-535. Doi:10.1111/jav.00431.


Dynamic size responses to climate change: prevailing effects of rising temperature drive long-term body size increases in a semi-arid passerine.

Gardner, J.L., Amano, T., Mackey, B., Sutherland, W.J., Clayton, M., Peters, A.  2014. Dynamic size responses to climate change: prevailing effects of rising temperature drive long-term body size increases in a semi-arid passerine. Global Change Biology 20, pp 2062-2075. Doi:10.1111/gcb.12507.


Increased conspicuousness can explain the match between visual sensitivities and blue plumage colours in fairy-wrens.

Delhey, K., Kingma, S.A., Hall, M.L., Peters, A. 2013. Increased conspicuousness can explain the match between visual sensitivities and blue plumage colours in fairy-wrens. Proc R Soc Lond B 280: 20121771. Doi:10.1098/rspb.2012.1771.


Colour-variable birds have broader ranges, wider niches and are less likely to be threatened.

Delhey, K., Smith, J., Peters, A. 2013. Colour-variable birds have broader ranges, wider niches and are less likely to be threatened. Journal of Evolutionary Biology 26, pp 1559-1568. Doi:10.1111/jeb.12157.


Male songbird indicates body size with low-pitched advertising songs.

Hall, M.L., Kingma, S.A., Peters, A. 2013. Male songbird indicates body size with low-pitched advertising songs. PLoS ONE 8: e56717. Doi:10.1371/journal.pone.0056717.


Breeding synchronization facilitates extra-pair mating for inbreeding avoidance.

Kingma, S.A., Hall, M.L., Peters, A. 2013. Breeding synchronization facilitates extra-pair mating for inbreeding avoidance. Behavioral Ecology 24, pp 1390-1397. Doi:10.1093/beheco/art078.


Seasonal male plumage as a multicomponent sexual signal: insights and opportunities.

Peters, A., Kingma, S.A., Delhey,  K. 2013. Seasonal male plumage as a multicomponent sexual signal: insights and opportunities. EMU-Austral Ornithol 113, pp 232-247. Doi:10.1071/MU12083.


Problems with using large-scale oceanic climate indices to compare climatic sensitivities across populations and species.

van de Pol, M., Brouwer, L., Brooker, L.C., Brooker, M.G., Colombelli-Négrel, D., Hall, M.L., Langmore, N.E., Peters, A., Pruett-Jones, S., Russell, E.M., Webster, M.S., Cockburn, A. 2013. Problems with using large-scale oceanic climate indices to compare climatic sensitivities across populations and species. Ecography 36, pp 249-255. Doi:10.1111/j.1600-0587.2012.00143.x.


Testosterone treatment can increase circulating carotenoids but does not affect yellow carotenoid-based plumage colour in blue tits Cyanistes caeruleus.

Peters, A., Roberts, M.L., Kurvers, R.H.J.M., Delhey, K.  2012. Testosterone treatment can increase circulating carotenoids but does not affect yellow carotenoid-based plumage colour in blue tits Cyanistes caeruleus. Journal of Avian Biology 43, pp 362–368. Doi: 10.1111/j.1600-048X.2012.05713.x.


Sperm storage reflects within- and extra-pair mating opportunities in a cooperatively breeding bird.

Kingma, S.A., Hall, M.L., Peters, A.,  2012. Sperm storage reflects within- and extra-pair mating opportunities in a cooperatively breeding bird.  Behavioral Ecology and Sociobiology 66, pp 1115–1123. Doi:10.1007/s00265-012-1363-y.


Causes of ring-related leg injuries in birds – evidence and recommendations from four field studies.

Griesser, M., Schneider, N.A., Collis, M ., Overs, A., Guppy, M.S., Takeuchi, N., Collins, P., Peters, A., Hall, M.L. 2012. Causes of ring-related leg injuries in birds – evidence and recommendations from four field studies. PLoS ONE 7(12): e51891. Doi:10.1371/journal.pone.0051891.


Declining body size: a third universal response to warming?

Gardner, J.L., Peters, A., Kearney, M.R.,  Joseph, L., Heinsohn, R. 2011. Declining body size: a third universal response to warming? Trends in Ecology & Evolution 26, pp 285-297. Doi:10.1016/j.tree.2011.03.005.


Mechanisms and consequences of changing body size: reply to Bickford et al. and McCauley and Mabry.

Gardner, J.L., Kearney, M.R., Peters, A., Joseph, L., Heinsohn, R. 2011. Mechanisms and consequences of changing body size: reply to Bickford et al. and McCauley and Mabry. Trends in Ecology & Evolution 26, pp 555. Doi:10.1016/j.tree.2011.07.003


Multiple benefits drive helping behaviour in a cooperatively breeding bird: an integrated analysis.

Kingma, S.A., Hall, M.L., Peters, A. 2011. Multiple benefits drive helping behaviour in a cooperatively breeding bird: an integrated analysis. The American Naturalist 177, pp 486-495. Doi:10.1086/658989.


Visual mimicry of host nestlings by cuckoos.

Langmore, N.E., Stevens, M.,  Maurer, G., Heinsohn, R., Hall, M.L., Peters, A., Kilner, R.M. 2011. Visual mimicry of host nestlings by cuckoos. Proceedings of the Royal Society B 278, pp 2455-2463. Doi:10.1098/rspb.2010.2391.


No evidence for general condition-dependence of structural plumage colour in blue tits: an experiment.

Peters, A., Kurvers, R.H.J.M., Roberts, M.L., Delhey, K. 2011. No evidence for general condition-dependence of structural plumage colour in blue tits: an experiment. Journal of Evolutionary Biology 24, pp 976-987. Doi:10.1111/j.1420-9101.2011.02229.x.


The carotenoid conundrum: improved nutrition boosts plasma carotenoid levels but not immune benefits of carotenoid supplementation.

Peters, A., Magdeburg, S., Delhey, K. 2011. The carotenoid conundrum: improved nutrition boosts plasma carotenoid levels but not immune benefits of carotenoid supplementation. Oecologia 166, pp 35-43. Doi:10.1007/s00442-011-1921-4.


Rejection of brood-parasitic shiny cowbird (Molothrus bonariensis) nestlings by the firewood-gatherer (Anumbius annumbi)?

Delhey, K., Carrizo, M., Verniere, L., Mahler, B., Peters, A.,  2011. Rejection of brood-parasitic shiny cowbird (Molothrus bonariensis) nestlings by the firewood-gatherer (Anumbius annumbi)? Journal of Avian Biology 42, pp 463-467. Doi:10.1111/j.1600-048X.2011.05439.x.


No evidence for offspring sex-ratio adjustment to social or environmental conditions in cooperatively breeding purple-crowned fairy-wrens.

Kingma, S.A., Hall, M.L., Peters, A. 2011. No evidence for offspring sex-ratio adjustment to social or environmental conditions in cooperatively breeding purple-crowned fairy-wrens. Behavioral Ecology and Sociobiology 65, pp 1203-1213. Doi:10.1007/s00265-010-1133-7.


Multiple benefits of cooperative breeding in purple-crowned fairy-wrens: a consequence of fidelity?

Kingma, S.A., Hall, M.L., Arriero, E., Peters, A.  2010. Multiple benefits of cooperative breeding in purple-crowned fairy-wrens: a consequence of fidelity? Journal of Animal Ecology 79, pp 757-768. Doi:10.1111/j.1365-2656.2010.01697.x.


The carotenoid-continuum: carotenoid-based plumage ranges from conspicuous to cryptic and back again.

Delhey, K., Roberts, M.L., Peters, A. 2010. The carotenoid-continuum: carotenoid-based plumage ranges from conspicuous to cryptic and back again. BMC Ecology 10, pp13. Doi:10.1186/1472-6785-10-13.


Seasonal changes in colour: a comparison of structural, melanin- and carotenoid-based colours in birds.

Delhey, K., Burger, C., Fiedler, W., Peters, A. 2010. Seasonal changes in colour: a comparison of structural, melanin- and carotenoid-based colours in birds. PLoS ONE 5(7): e11582. Doi: 10.1371/journal.pone.0011582.


Seasonal variation in reproductive output of a Neotropical temperate suboscine: the firewood-gatherer (Anumbius annumbi)

Delhey, K., Carrizo, M., Verniere, L., Mahler, B., Peters, A. 2010. Seasonal variation in reproductive output of a Neotropical temperate suboscine: the firewood-gatherer (Anumbius annumbi) Ornithology 127, pp 222-231. Doi:10.1525/auk.2009.09050.


No consistent female preference for more UV crown colour in the blue tit Cyanistes caeruleus: a mate choice experiment.

Kurvers, R.H.J.M., Delhey, K., Roberts, M.L., Peters, A. 2010. No consistent female preference for more UV crown colour in the blue tit Cyanistes caeruleus: a mate choice experiment. Ibis 152, pp 393-396. Doi:10.1111/j.1474-919X.2009.00998.x.


Fat quill secretion in pigeons: could it function as a cosmetic?

Peters, A., Klonczinski, E., Delhey, K. 2010. Fat quill secretion in pigeons: could it function as a cosmetic? Animal Biology 60,  pp 1-10. Doi:10.1163/157075610X12610595764219.


Is testosterone immunosuppressive in a condition-dependent manner? An experimental test in blue tits.

Roberts, M.L., Peters, A.  2009. Is testosterone immunosuppressive in a condition-dependent manner? An experimental test in blue tits. Journal of Experimental Biology 212, pp 1811-1818. Doi:10.1242/jeb.031047.


Do male paternity-guards ensure female fidelity in a duetting fairy-wren?

Hall, M.L., Peters, A. 2009. Do male paternity-guards ensure female fidelity in a duetting fairy-wren? Behavioral Ecology 20, pp 222-228. Doi:10.1093/beheco/arn139.


Testosterone increases UV reflectance of sexually selected crown plumage in male blue tits.

Roberts, M.L., Ras, E., Peters, A.,  2009. Testosterone increases UV reflectance of sexually selected crown plumage in male blue tits. Behavioral Ecology 20, pp 535-541. Doi:10.1093/beheco/arp028.


Dietary flavonoids enhance conspicuousness of a melanin-based trait in male blackcaps but not of the female homologous trait or of sexually monochromatic traits.

Catoni, C.*, Peters, A.*, Schaefer, H.M.* 2009. Dietary flavonoids enhance conspicuousness of a melanin-based trait in male blackcaps but not of the female homologous trait or of sexually monochromatic traits. (*contributed equally) J Evol Biol 22, pp 1649-1657. Doi:10.1111/j.1420-9101.2009.01778.x.


Radical loss of an extreme extra-pair mating system.

Kingma, S.A., Hall, M.L., Segelbacher, G., Peters, A. 2009. Radical loss of an extreme extra-pair mating system. BMC Ecology 9, pp 15. Doi:10.1186/1472-6785-9-15.


Sources of individual variation in plasma testosterone levels.

Kempenaers, B., Peters, A., Foerster, K. 2008. Sources of individual variation in plasma testosterone levels. Phil Trans R Soc B 363(1497), pp 1711-1723. Doi:10.1098/rstb.2007.0001.


Quantifying variability of avian colours: are signalling traits more variable?

Delhey, K., Peters, A. 2008.  Quantifying variability of avian colours: are signalling traits more variable? PloS ONE 3(2): e168. Doi:10.1371/journal.pone.0001689.


Condition-dependence of multiple carotenoid-based plumage traits: an experimental study.

Peters, A., Delhey, K., Andersson, S., van Noordwijk, H., Förschler, M.I.  2008. Condition-dependence of multiple carotenoid-based plumage traits: an experimental study. Functional Ecology 22, pp 831-839. Doi:10.1111/j.1365-2435.2008.01437.x.


Coordination between the sexes for territorial defence in a duetting fairy-wren.

Hall, M.L.,  Peters, A. 2008. Coordination between the sexes for territorial defence in a duetting fairy-wren. Animal Behaviour 76, pp 667-677. Doi:10.1016/j.anbehav.2008.01.010.


Fruit for health: The effect of flavonoids on humoral immune response and food selection in a frugivorous bird.

Catoni, C., Schaefer, H.M., Peters, A. 2008. Fruit for health: The effect of flavonoids on humoral immune response and food selection in a frugivorous bird. Functional Ecology 22, pp 649-654. Doi:10.1111/j.1365-2435.2008.01400.x.


Life history trade-offs are influenced by the diversity, availability, and interactions of dietary antioxidants.

Catoni, C., Peters, A., Schaefer, H.M. 2008. Life history trade-offs are influenced by the diversity, availability, and interactions of dietary antioxidants. Anim Behav 76, pp 1107-1119. Doi:10.1016/j.anbehav.2008.05.027.


Optical properties of the uropygial gland secretion: no evidence for UV cosmetics in birds.

Delhey, K., Peters, A., Biedermann, P., Kempenaers, B. 2008. Optical properties of the uropygial gland secretion: no evidence for UV cosmetics in birds. Naturwissenschaften 95(10):939-946. Doi:10.1007/s00114-008-0406-8.


Experimental manipulation of testosterone and condition during molt affects activity and vocalizations of male blue tits.

Kurvers, R.H.J.M., Roberts, M.L., McWilliams, S.R., Peters, A. 2008. Experimental manipulation of testosterone and condition during molt affects activity and vocalizations of male blue tits. Hormones and Behavior 54, pp 263-269. Doi:10.1016/j.yhbeh.2008.03.011.


The condition-dependent development of carotenoid-based and structural plumage in nestling blue tits: males and females differ.

Peters, A., Delhey, K., Johnsen, A., Kempenaers, B. 2007. The condition-dependent development of carotenoid-based and structural plumage in nestling blue tits: males and females differ. American Naturalist 169, pp 122-136. Doi:10.1086/510139.


Cosmetic coloration in birds: occurrence, function and evolution.

Delhey, K., Peters, K., Kempenaers. B. 2007. Cosmetic coloration in birds: occurrence, function and evolution. American Naturalist 169, pp 145-158. Doi:10.1086/510095.


Testosterone and carotenoids: an integrated view of trade-offs between immunity and sexual signalling.

Peters, A. 2007. Testosterone and carotenoids: an integrated view of trade-offs between immunity and sexual signalling. BioEssays 29(5):427-430. Doi:10.1002/bies.20563.


Fertilization success and UV ornamentation in blue tits Cyanistes caeruleus: correlational and experimental evidence.

Delhey, K., Peters, A., Johnsen, A., Kempenaers., B. 2007. Fertilization success and UV ornamentation in blue tits Cyanistes caeruleus: correlational and experimental evidence. Behavioral Ecology 18, pp 399-409. Doi:10.1093/beheco/arl096.


Brood sex ratio and male UV ornamentation in blue tits (Cyanistes caeruleus): correlational evidence and an experimental test.

Delhey, K., Peters, A., Johnsen, A., Kempenaers, B. 2007. Brood sex ratio and male UV ornamentation in blue tits (Cyanistes caeruleus): correlational evidence and an experimental test. Behavioral Ecology and Sociobiology 61, pp 853-862. Doi:10.1007/s00265-006-0314-x.


Testosterone treatment of female Superb Fairy-wrens induces a male-like pre-nuptial moult, but no coloured plumage.

Peters, A. 2007. Testosterone treatment of female Superb Fairy-wrens induces a male-like pre-nuptial moult, but no coloured plumage. Ibis 149:121-127. Doi:10.1111/j.1474-919X.2006.00616.x.


Territorial responses of male blue tits, Cyanistes caeruleus, to UV-manipulated neighbours.

Poesel, A., Dabelsteen, T., Darden, S., Delhey, K., Peters, A.  2007. Territorial responses of male blue tits, Cyanistes caeruleus, to UV-manipulated neighbours. J Ornithol 148(2):179-187. Doi:10.1007/s10336-006-0117-x.


Seasonal changes in blue tit crown color: do they signal individual quality?

Delhey, K., Peters, A., Johnsen, A., Kempenaers, B. 2006. Seasonal changes in blue tit crown color: do they signal individual quality? Behavioral Ecology 17, pp 790-798. Doi:10.1093/beheco/arl012.


Age-dependent association between testosterone and crown UV coloration in male blue tits (Parus caeruleus).

Peters, A., Delhey, K., Goymann, W., Kempenaers, B.  2006. Age-dependent association between testosterone and crown UV coloration in male blue tits (Parus caeruleus). Behavioral Ecology and Sociobiology 59, pp 666-673. Doi:10.1007/s00265-005-0095-7 .


Paternity in mallards: effects of sperm quality and female sperm selection for inbreeding avoidance.

Denk, A.G., Holzman, A., Peters, A., Vermeirssen, E., Kempenaers, B. 2005. Paternity in mallards: effects of sperm quality and female sperm selection for inbreeding avoidance.  Behavioral Ecology 16, pp 825-833. Doi:10.1093/beheco/ari065.


The evolution of egg rejection by cuckoo hosts in Australia and Europe.

Langmore, N.E., Kilner, R.M., Butchart, S.H.M., Maurer, G., Davies, N.B., Cockburn, A.,  Macgregor, N.A., Peters, A., Magrath, M.J.L., Dowling, D.K. 2005. The evolution of egg rejection by cuckoo hosts in Australia and Europe. Behavioral Ecology 16, pp  686-692. Doi:10.1093/beheco/ari041.


Male sexual attractiveness and parental effort in blue tits: an experimental test of the differential allocation hypothesis.

Johnsen, A., Delhey, K., Schlicht, E., Peters, A., Kempenaers, B. 2005. Male sexual attractiveness and parental effort in blue tits: an experimental test of the differential allocation hypothesis. Animal Behaviour 70, pp 877-888. Doi:10.1016/j.anbehav.2005.01.005.


Tradeoffs between immune investment and sexual signaling in male mallards.

Peters, A., Delhey, K., Denk A.G., Kempenaers, B. 2004. Tradeoffs between immune investment and sexual signaling in male mallards. American Naturalist 164, pp 51-59. Doi:10.1086/421302 .


Carotenoid-based bill colour as an indicator of immunocompetence and sperm performance in male mallards.

Peters, A., Denk, A.G., Delhey, K., Kempenaers, B. 2004. Carotenoid-based bill colour as an indicator of immunocompetence and sperm performance in male mallards. Journal of Evolutionary Biology,  17, pp 1111-1120. Doi:10.1111/j.1420-9101.2004.00743.x.


Paternity analysis reveals opposing selection pressures on crown coloration in the blue tit (Parus caeruleus).

Delhey, K., Johnsen, A., Peters, A., Andersson, S., Kempenaers, B. 2003. Paternity analysis reveals opposing selection pressures on crown coloration in the blue tit (Parus caeruleus). Proceedings of the Royal Society B 270, pp 2057-2063. Doi:10.1098/rspb.2003.2460.


Testosterone treatment suppresses paternal care in superb fairy-wrens, Malurus cyaneus, despite their concurrent investment in courtship.

Peters A, A Cockburn & R Cunningham. 2002. Testosterone treatment suppresses paternal care in superb fairy-wrens, Malurus cyaneus, despite their concurrent investment in courtship. Behavioral Ecology and Sociobiology 51, pp 538-547. Doi:10.1007/s00265-002-0472-4.


Testosterone and the trade-off between mating and paternal effort in extra-pair mating superb fairy-wrens.

Peters A. 2002. Testosterone and the trade-off between mating and paternal effort in extra-pair mating superb fairy-wrens. Animal Behaviour 64, pp 103-112. Doi:10.1006/anbe.2002.3037.


Extra-pair paternity and mate guarding behaviour in the brown thornbill.

Green, D.J., Peters, A., Cockburn, A.  2002. Extra-pair paternity and mate guarding behaviour in the brown thornbill. Australian Journal of Zoology 50, pp 565-580. Doi:10.1071/ZO02037.


The annual testosterone profile in cooperatively breeding superb fairy-wrens, Malurus cyaneus, reflects their extreme infidelity.

Peters, A., Astheimer, L.B., Cockburn, A. 2001.  The annual testosterone profile in cooperatively breeding superb fairy-wrens, Malurus cyaneus, reflects their extreme infidelity. Behavioral Ecology and Sociobiology 50, pp 519-527. Doi:10.1007/s002650100403.


Testosterone is involved in acquisition and maintenance of sexually-selected male plumage in superb fairy-wrens, Malurus cyaneus.

Peters, A., Astheimer, L.B., Boland, C.R.J., Cockburn, A., 2000. Testosterone is involved in acquisition and maintenance of sexually-selected male plumage in superb fairy-wrens, Malurus cyaneus. Behavioral Ecology and Sociobiology 47, pp 438-445. Doi:10.1007/s002650050688.


Testosterone treatment is immunosuppressive in superb fairy-wrens, yet free-living males with high testosterone are more immunocompetent.

Peters, A. 2000. Testosterone treatment is immunosuppressive in superb fairy-wrens, yet free-living males with high testosterone are more immunocompetent. Proceedings of the Royal Society B 267, pp 883-889. Doi:10.1098/rspb.2000.1085.


Do simultaneous hermaphrodites choose their mates? Effects of body size in a planarian flatworm.

Peters, A., Michiels, N.K. 1996. Do simultaneous hermaphrodites choose their mates? Effects of body size in a planarian flatworm. Freshw Biology 36, pp 623-630. Doi:10.1046/j.1365-2427.1996.00128.x.


Mating behaviour in a hermaphroditic flatworm with reciprocal insemination: do they assess their mates during copulation?

Peters, A., Streng, A., Michiels, N.K. 1996. Mating behaviour in a hermaphroditic flatworm with reciprocal insemination: do they assess their mates during copulation? Ethology 102, pp 236-251. Doi:10.1111/j.1439-0310.1996.tb01121.x.


Evidence for lack of inbreeding avoidance by selective mating in a simultaneous hermaphrodite.

Peters, A., Michiels, N.K. 1996. Evidence for lack of inbreeding avoidance by selective mating in a simultaneous hermaphrodite. Invertebrate Biology 115, pp 99-103. Doi:10.2307/3227040.


Caretta caretta (Loggerhead Sea Turtle) Predation.

Peters, A., Verhoeven, K.J.F., van Piggelen, D.C.G., Strijbosch. H. 1994. Caretta caretta (Loggerhead Sea Turtle) Predation. Herpetol Rev 25,  pp 120.


 Impact of artificial lighting on the seaward orientation of hatchling loggerhead turtles.

Peters, A., Verhoeven, K.J.F. 1994. Impact of artificial lighting on the seaward orientation of hatchling loggerhead turtles. Journal of Herpetology 28, pp 112-114. Doi:10.2307/1564691.


Hatching and emergence in the Turkish Mediterranean loggerhead turtle, Caretta caretta: natural causes for egg and hatchling failure.

Peters, A., Verhoeven, K.J.F., Strijbosch, H. 1994. Hatching and emergence in the Turkish Mediterranean loggerhead turtle, Caretta caretta: natural causes for egg and hatchling failure. Herpetologica 50, pp 369-373. https://www.jstor.org/stable/3892711.


Behavioural & Evolutionary Ecology of Birds