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Journal Article (15)

  1. 1.
    Journal Article
    Quispe Valdez, R.; Yohannes, E.; Gahr, M.: Seasonality at the equator: Isotope signatures and hormonal correlates of molt phenology in a non-migratory Amazonian songbird. Frontiers in Zoology 15, 39 (2018)
  2. 2.
    Journal Article
    Yohannes, E.; Gwinner, H.; Lee, R. W.; Schwabl, H.: Stable isotopes predict reproductive performance of European starlings breeding in anthropogenic environments. Ecosphere 7 (11), e01566 (2016)
  3. 3.
    Journal Article
    Gwinner, H.; Yohannes, E.; Schwabl, H.: Nest composition and yolk hormones: Do female European starlings adjust yolk androgens to nest quality? Avian Biology Research 6 (4), pp. 307 - 312 (2013)
  4. 4.
    Journal Article
    Salvarina, I.; Yohannes, E.; Siemers, B. M.; Koselj, K.: Advantages of using fecal samples for stable isotope analysis in bats: Evidence from a triple isotopic experiment. Rapid Communications in Mass Spectrometry 27 (17), pp. 1945 - 1953 (2013)
  5. 5.
    Journal Article
    Yohannes, E.; Lee, R. W.; Valcu, M.; Kempenaers, B.: Feather deuterium as an indicator of age-class in the Pectoral Sandpiper Calidris melanotos. Ibis 154 (4), pp. 868 - 873 (2012)
  6. 6.
    Journal Article
    Prochazka, P.; Reif, J.; Horak, D.; Klvana, P.; Lee, R. W.; Yohannes, E.: Using stable isotopes to trace resource acquisition and trophic position in four Afrotropical birds with different diets. Ostrich 81 (3), pp. 273 - 275 (2010)
  7. 7.
    Journal Article
    Yohannes, E.; Valcu, M.; Lee, R. W.; Kempenaers, B.: Resource use for reproduction depends on spring arrival time and wintering area in an arctic breeding shorebird. Journal of Avian Biology 41 (5), pp. 580 - 590 (2010)
  8. 8.
    Journal Article
    Yohannes, E.; Biebach, H.; Nikolaus, G.; Pearson, D. J.: Passerine migration strategies and body mass variation along geographic sectors across East Africa, the Middle East and the Arabian Peninsula. Journal of Ornithology 150 (2), pp. 369 - 381 (2009)
  9. 9.
    Journal Article
    Yohannes, E.; Biebach, H.; Nikolaus, G.; Pearson, D. J.: Migration speeds among eleven species of long-distance migrating passerines across Europe, the desert and eastern Africa. Journal of Avian Biology 40 (2), pp. 126 - 134 (2009)
  10. 10.
    Journal Article
    Yohannes, E.; Krizanauskiene, A.; Valcu, M.; Bensch, S.; Kempenaers, B.: Prevalence of malaria and related haemosporidian parasites in two shorebird species with different winter habitat distribution. Journal of Ornithology 150 (1), pp. 287 - 291 (2009)
  11. 11.
    Journal Article
    Yohannes, E.; Bensch, S.; Lee, R.: Philopatry of winter moult area in migratory Great Reed Warblers Acrocephalus arundinaceus demonstrated by stable isotope profiles. Journal of Ornithology 149 (2), pp. 261 - 265 (2008)
  12. 12.
    Journal Article
    Yohannes, E.; Hansson, B.; Lee, R. W.; Waldenström, J.; Westerdahl, H.; Akesson, M.; Hasselquist, D.; Bensch, S.: Isotope signatures in winter moulted feathers predict malaria prevalence in a breeding avian host. Oecologia 158 (2), pp. 299 - 306 (2008)
  13. 13.
    Journal Article
    Hobson, K. A.; Yohannes, E.: Establishing elemental turnover in exercising birds using a wind tunnel: Implications for stable isotope tracking of migrants. Canadian Journal of Zoology-Revue Canadienne De Zoologie 85 (6), pp. 703 - 708 (2007)
  14. 14.
    Journal Article
    Yohannes, E.; Hobson, K. A.; Pearson, D. J.: Feather stable-isotope profiles reveal stopover habitat selection and site fidelity in nine migratory species moving through sub-Saharan Africa. Journal of Avian Biology 38 (3), pp. 347 - 355 (2007)
  15. 15.
    Journal Article
    Yohannes, E.; Hobson, K. A.; Pearson, D. J.; Wassenaar, L. I.: Stable isotope analyses of feathers help identify autumn stopover sites of three long-distance migrants in northeastern Africa. Journal of Avian Biology 36 (3), pp. 235 - 241 (2005)
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