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Recent publications

 

2019

Eikenaar C, Packmor F, Schmaljoahnn H, Hegemann A. 2019. Stopover departure decisions in autumn are not associated with constitutive immune function in Northern Wheatears Oenanthe oenanthe. Journal of Ornithology, doi: 10.1007/s10336-019-01665-8

Eikenaar C, Hegemann A, Packmor F, Kleudgen I, Isaksson C. 2019. Not just fuel: energy stores are correlated with immune function and oxidative damage in a long-distance migrant. Current Zoology 2019, 1-8.

Eikenaar C, Hessler S, Fischer S, Bairlein F. 2019. An exception to the rule: captivity does not stress wild migrating northern wheatears. General and Comparative Endocrinology 275, 25-29.

2018

Eikenaar C, Hessler S, Ballstaedt E, Schmaljohann H, Kaiya H. 2018. Ghrelin, corticosterone and the resumption of migration from stopover, an automated telemetry study. Physiology and Behavior 194, 450-455.

Eikenaar C, Isaksson C, Hegemann A. 2018. A hidden cost of migration? Innate immune function versus antioxidant defense. Ecology and Evolution 8, 2721-2728.

Eikenaar C, Ballstaedt E, Hessler S, Klinner T, Müller, Schmaljohann H. 2018 Cues, corticosterone and departure decisions in a partial migrant. General and Comparative Endocrinology, 26, 59-66.

Müller F, Eikenaar C, Crysler ZJ, Taylor PD, Schmaljohann H. 2018. Nocturnal departure timing in songbirds facing distinct migratory challenges. Journal of Animal Ecology 87, 1102-1115.

Schmaljohann H, Müller F, Klinner T, Eikenaar C. 2018. Potential age differences in the migratory behaviour of a nocturnal songbird migrant during autumn and spring. Journal of Avian Biology 49: e01815.

Eikenaar C, Müller F, Rüppel G, Stöwe M. 2018. Endocrine regulation of migratory departure from stopover: Evidence from a longitudinal migratory restlessness study on northern wheatears. Hormones and Behavior 99, 9-13.

 

2017

Eikenaar C. 2017. Endocrine regulation of fueling by hyperphagia in migratory birds. Journal of Comparative Physiology Part A 203: 439-445.

Schmaljohann H, Eikenaar C. 2017. How do energy stores and changes in these affect departure decisions in migratory birds? A critical view on stopover ecology and some future perspectives. Journal of Comparative Physiology Part A 203: 411-429.

Eikenaar C, Källstig E, Andersson MN, Herrera-Dueñas, Isaksson C. 2017. Oxidative challenges of avian migration: a comparative study on a partial migrant. Physiological and Biochemical Zoology 90: 223-229.

Komdeur J, Richardson DS, Hammers M, Eikenaar C, Brouwer L, Kingsma SA. 2017. The evolution of cooperative breeding in vertebrates. In: eLS John Wiley & Sons, Ltd: Chichester. DOI: 10.1002/9780470015902.a0021218.pub2

Eikenaar C, Müller F, Leutgeb C, Hessler S, Lebus K, Taylor PD, Schmaljohann H. 2017. Corticosterone and timing of migratory departure in a songbird. Proceedings of the Royal Society of London B 284: 20162300.

 

2016

Eikenaar C, Müller F, Kämpfer S, Schmaljohann H. 2016. Fuel accumulation advances nocturnal departure: a migratory restlessness study on northern wheatears at stopover. Animal Behaviour 117: 9-14.

Eikenaar C, Hegemann A. 2016. Migratory common blackbirds have lower innate immune function during autumn migration than resident conspecifics. Biology Letters 12: 20160078. DOI: 10.1098/rsbl.2016.0078

Eikenaar C, Jönsson J, Fritzsch A, Wang HL, Isaksson C. 2016. Migratory refueling affects non-enzymatic antioxidant capacity, but does not increase lipid peroxidation. Physiology and Behavior 158: 26-32.

Eikenaar C, Fritzsch A, Kämpfer S, Schmaljohann H. 2016. Migratory restlessness increases and refuelling rate decreases over the spring migration season in northern wheatears. Animal Behaviour 112: 75-81.

Schmaljohann H, Meier C, Arlt D, Bairlein F, van Oosten H, Morbey YE, Åkesson S, Buchmann M, Chernetsov N, Desaever R, Elliot J, Hellström M, Liechti F, López A, Middleton J, Ottosson U, Pärt T, Spina F, Eikenaar C. 2016. Proximate causes of avian protandry differ between subspecies with contrasting migration challenges. Behavioral Ecology 27: 321-331.

 

2015

Eikenaar C, Müller F, Klinner T, Bairlein F. 2015. Baseline corticosterone levels are higher in migrating than sedentary common blackbirds in autumn, but not in spring. General and Comparative Endocrinology 224: 121-125.

Eikenaar C, Tsvey A, Schmaljohann H. 2015. Faster spring migration in northern wheatears is not explained by an endogenous seasonal difference in refueling rates. Journal of Avian Biology 46: 1-6.

Bairlein F, Eikenaar C, Schmaljohann H. 2015. Routes to genes: unravelling the control of avian migration-an integrated approach using the northern wheatear Oenanthe oenanthe as a model organism. Journal of Ornithology 156: S3-14.

Eikenaar C, Schmaljohann H. 2015. Wind conditions experienced during the day predict nocturnal restlessness in a migratory songbird. Ibis 157: 125-132

Schmaljohann H, Kampfer S, Fritzsch A, Kima R, Eikenaar C. 2015. Start of nocturnal migratory restlessness in captive birds predicts nocturnal departure time in free-flying birds. Behavioral Ecology and Sociobiology 69: 909-914.

 

2014

Eikenaar C, Klinner T, Stöwe M. 2014. Corticosterone predicts nocturnal restlessness in a long-distance migrant. Hormones and Behavior 66: 324-329.

Eikenaar C, Bairlein F, Stöwe M, Jenni-Eiermann S. 2014. Corticosterone, food intake and refueling in a long-distance migrant. Hormones and Behavior 65: 480-487.

Eikenaar C, Klinner T, Szostek KL, Bairlein F. 2014. Migratory restlessness in captive individuals predicts actual departure in the wild. Biology Letters 10: 20140154.

Bonier F, Eikenaar C, Martin P, Moore IT. 2014. Extrapair paternity rates vary with latitude and elevation in Emberizid sparrows. American Naturalist 183: 54-63.

Eikenaar C, Klinner T, de Lille T, Bairlein F, Schmaljohann H. 2014. Fuel loss and flexible fuel deposition rates in a long-distance migrant. Behavioral Ecology and Sociobiology 68: 1465-1471.

Eikenaar C, Bairlein F. 2014. Food availability and fuel loss predict Zugunruhe. Journal of Ornithology 155: 65-70.

 

2013

Eikenaar C, Schläfke JL. 2013. Size and accumulation of fuel reserves at stopover predict nocturnal restlessness in a migratory bird. Biology Letters 9: 20130712.

Eikenaar C, Fritschz A, Bairlein F. 2013. Corticosterone and migratory fueling in northern wheatears facing different barrier crossings. General and Comparative Endocrinology 186: 181-186.

Eikenaar C, Bonier F, Martin P, Moore IT. 2013. High rates of extra-pair paternity in two equatorial populations of rufous-collared sparrow, Zonotrichia capensis. Journal of Avian Biology 44: 600-602.

Bairlein F, Dierschke V, Delingat J, Eikenaar C, Maggini I, Bulte M, Schmaljohann H. 2013. Revealing the control of migratory fueling: An integrated approach combining laboratory and field studies in northern wheatears Oenanthe oenanthe. Current Zoology 59: 381-392.

 

 

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