Wryneck (Jynx torquilla) populations are declining in whole Europe. The reasons for this decline are not fully understood and it is therefore difficult to propose sound conservation actions. We study the dynamics of a population in the Valais as well as the habitat selection in different areas.
Uni Bern supervisors
Michael Schaub, Raphaël Arlettaz
Publications
Tenan, S., D. Becker, D. Tolkmitt & M. Schaub. 2021. Decomposing fecundity and evaluating demographic influence of multiple broods in a migratory bird. Journal of Animal Ecology 90: 1071-1084. (PDF, 1.1 MB)
Vickery, J. & R. Arlettaz. 2012. The importance of habitat heterogeneity at multiple scales for birds in European agricultural landscapes. In: Birds and Habitat: Relationships in Changing Landscapes (ed. R.J. Fuller), pp. 177-204. Cambridge University Press, Cambridge. (PDF, 3.3 MB)
Schaub, M., T.S. Reichlin, F. Abadi, M. Kéry, L. Jenni & R. Arlettaz. 2012. The demographic drivers of local population dynamics in two rare migratory birds. Oecologia 168: 97-108. (PDF, 413KB)
Weisshaupt, N., R. Arlettaz, T.S. Reichlin, A. Tagmann-Ioset & M. Schaub. 2011. Habitat selection by foraging Wrynecks Jynx torquilla during the breeding season: identifying the optimal habitat profile. Bird Study 58: 111-119. (PDF, 212KB)
Coudrain, V., R. Arlettaz & M. Schaub. 2010. Food or nesting place? Identifying factors limiting Wryneck populations. Journal of Ornithology 151: 867-880. (PDF, 533KB)
Reichlin, T.S., K.A. Hobson, L.I. Wassenaar, M. Schaub, D. Tolkmitt, D. Becker, L. Jenni & R. Arlettaz. 2010. Migratory connectivity in a declining bird species: using feather isotopes to inform demographic modelling. Diversity and Distributions 16: 643-654. (PDF, 1.1 MB)
Schaub, M., N. Martinez, A. Tagmann-Ioset, N. Weisshaupt, M.L. Maurer, T.S. Reichlin, F. Abadi, N. Zbinden, L. Jenni & R. Arlettaz. 2010. Patches of Bare Ground as a Staple Commodity for Declining Ground-Foraging Insectivorous Farmland Birds. PLoS ONE 5:e13115. (PDF, 755KB)
Zingg, S., R. Arlettaz & M. Schaub. 2010. Nestbox design influences territory occupancy and reproduction in a declining, secondary cavity-breeding bird. Ardea 98: 67-75. (PDF, 359KB)
Mermod, M., T.S. Reichlin, R. Arlettaz & M. Schaub. 2009. Vorläufige Ergebnisse einer Langzeitstudie zum Wendehals in der Schweiz. In: Jahrestagung 2008 der Projektgruppe Spechte der Deutschen Ornithologen-Gesellschaft - Aktuelle Beiträge zur Spechtforschung (eds T. Späth & A. Kirzinger), pp. 78-81. Nationalparkverwaltung Harz, Wernigerode. (PDF, 2.0 MB)
Mermod, M., T.S. Reichlin, R. Arlettaz & M. Schaub. 2009. The importance of ant-rich habitats for the persistence of the Wryneck Jynx torquilla on farmland. Ibis 151: 731-742. (PDF, 433KB)
Reichlin, T.S., M. Schaub, R. Arlettaz & L. Jenni. 2009. Zugrichtungen europäischer Wendehälse. In: Jahrestagung 2008 der Projektgruppe Spechte der Deutschen Ornithologen-Gesellschaft - Aktuelle Beiträge zur Spechtforschung (eds T. Späth & A. Kirzinger), pp. 82-85. Nationalparkverwaltung Harz, Wernigerode. (PDF, 503KB)
Reichlin, T.S., M. Schaub, M.H.M. Menz, M. Mermod, P. Portner, R. Arlettaz & L. Jenni. 2009. Migration patterns of Hoopoe Upupa epops and Wryneck Jynx torquilla : an analysis of European ring recoveries. Journal of Ornithology 150: 393-400. (PDF, 1.4 MB)
Tolkmitt, D., D. Becker, T.S. Reichlin & M. Schaub. 2009. Variation der Gelegegrößen des Wendehalses Jynx torquilla in Untersuchungsgebieten Deutschlands und der Schweiz. In: Jahrestagung 2008 der Projektgruppe Spechte der Deutschen Ornithologen-Gesellschaft - Aktuelle Beiträge zur Spechtforschung (eds T. Späth & A. Kirzinger), pp. 69-77. Nationalparkverwaltung Harz, Wernigerode. (PDF, 2.5 MB)
Weisshaupt, N. 2009. L'habitat di foraggiamento del Torcicollo Jynx torquilla. Ficedula 42: 18-23. (PDF, 2.7 MB)
Geiser, S., R. Arlettaz & M. Schaub. 2008. Impact of weather variation on feeding behaviour, nestling growth and brood survival in Wrynecks Jynx torquilla. Journal of Ornithology 149: 597-606. (PDF, 242KB)
Mermod, M., T.S. Reichlin, R. Arlettaz & M. Schaub. 2008. Wiedehopfpaar zieht Wendehalsnestlinge bis zum Ausfliegen auf. Der Ornithologische Beobachter 105: 153-160. (PDF, 1.3 MB)
Related PhD Thesis
Abadi Gebreselassie, F. 2010. Regulation of local bird populations: Deeper insights from integrated population models. PhD Thesis, University of Bern. PDF
Reichlin, T.S. 2009. Population dynamics of two endangered bird species, Upupa epops and Jynx torquilla, in Valais (Switzerland). PhD Thesis, University of Bern. (PDF, 4.8 MB)
Related Diploma/Master theses
Coudrain, V. 2009. Food or nesting place? Identifying factors limiting wryneck populations. Master Thesis, University of Bern. (PDF, 479KB)
Zingg, S. 2009. Nestbox design influences territory occupancy and reproduction in a declining, secondary cavity-breeding bird. Master Thesis, University of Bern. (PDF, 1.6 MB)
Mermod, M. 2008. Key ecological features for the persistence of an endangered migratory woodpecker of farmland, the wryneck (Jynx torquilla). Diploma Thesis, University of Bern. (PDF, 764KB)
Weisshaupt, N. 2007. Habitat selection by foraging wrynecks Jynx torquilla during the breeding season: identifying optimal species habitat. Diploma Thesis, University of Bern. PDF
Geiser, S. 2005. Impact of weather conditions on food availability, feeding behaviour, nestling growth and brood survival in a Wryneck population in Valais (Switzerland). Diploma Thesis, University of Bern. PDF
Ehrenbold, S. 2004. Habitat suitability modelling and components of reproductive success in the Wryneck Jynx torquilla. Diploma Thesis, University of Bern. (PDF, 1.2 MB)
