Steffen Oppel - Publications

Oppel, S., Lavers, J.L., Harrison, G., Bond, A.L., 2016. Reducing the primary exposure risk of Henderson crakes (Porzana atra) during aerial broadcast eradication by selecting appropriate bait colour. Wildlife Research in press. [download pdf]

Oppel, S., Dobrev, V., Arkumarev, V., Saravia, V., Bounas, A., Kret, E., Skartsi, T., Velevski, M., Stoychev, S., Nikolov, S.C., 2016. Assessing the effectiveness of intensive conservation actions: Does guarding and feeding increase productivity and survival of Egyptian Vultures in the Balkans? Biological Conservation in press.

Jones, H.P., Holmes, N.D., Butchart, S.H.M., Tershy, B.R., Kappes, P.J., Corkery, I., Aguirre-Munoz, A., Armstrong, D.P., Bonnaud, E., Burbidge, A.A., Campbell, K., Courchamp, F., Cowan, P.E., Cuthbert, R.J., Ebbert, S., Genovesi, P., Howald, G.R., Keitt, B.S., Kress, S.W., Miskelly, C.M., Oppel, S., Poncet, S., Rauzon, M.J., Rocamora, G., Russell, J.C., Samaniego-Herrera, A., Seddon, P.J., Spatz, D.R., Towns, D.R., and Croll, D.A, 2016. Invasive mammal eradication on islands results in substantial conservation gains. Proceedings of the National Academy of Sciences online early. [download pdf]

Lascelles, B. G., Taylor, P. R., Miller, M. G. R., Dias, M. P., Oppel, S., Torres, L., Hedd, A., Le Corre, M., Phillips, R. A., Shaffer, S. A., Weimerskirch, H. and Small, C., 2016. Applying global criteria to tracking data to define important areas for marine conservation. Diversity and Distributions22: 422-431. [download pdf]

Radchuk, V., Oppel, S., Groeneveld, J., Grimm, V., Schtickzelle, N., 2016. Simple or complex: Relative impact of data availability and model purpose on the choice of model types for population viability analyses. Ecological Modelling 323: 87-95. [download pdf]

Dobrev, V., Boev, Z., Arkumarev, V., Dobrev, D., Kret, E., Saravia, V., Bounas, A., Vavylis, D., Stoychev, S., Nikolov, S.C., Oppel, S., 2016. Diet is not related to productivity but to territory occupancy in a declining population of Egyptian Vultures Neophron percnopterus. Bird Conservation International in press.

Oppel, S., Dobrev, V., Arkumarev, V., Saravia, V., Bounas, A., Kret, E., Velevski, M., Stoychev, S., Nikolov, S.C., 2015. High juvenile mortality during migration in a declining population of a long-distance migratory raptor. Ibis 157: 545-557. [download pdf]

Oppel, S., Beard, A., Fox, D., Mackley, E., Leat, E., Henry, L., Clingham, E., Fowler, N., Sim, J., Sommerfeld, J., Weber, N., Weber, S., Bolton, M., 2015. Foraging distribution of a tropical seabird supports Ashmole's hypothesis of population regulation. Behavioral Ecology and Sociobiology 69: 915-926. [download pdf]

Lovvorn, J.R., Rocha, A.R., Jewett, S.C., Dasher, D., Oppel, S., Powell, A.N., 2015. Limits to benthic feeding by eiders in a vital Arctic migration corridor due to localized prey and changing sea ice. Progress in Oceanography 136: 162-174. [download pdf]

Kamp, J., Oppel, S., Ananin, A.A., Durnev, Y.A., Gashev, S.N., Hoelzel, N., Mishchenko, A.L., Pessa, J., Smirenski, S.M., Strelnikov, E.G., Timonen, S., Wolanska, K., Chan, S., 2015. Following the Passenger Pigeon? Global population collapse in a superabundant migratory bird, and illegal trapping in China. Conservation Biology 29: 1684-1694. [download pdf]

Oppel, S., Gray, G., Daley, J., Mendes, S., Fenton, C., Galbraith, G., Daniel, S., Millett, J., 2015. Montserrat. British Birds 108: 80-96. [download pdf]

Parashuram, D., Oppel, S., Fenton, C., James, G., Daley, J., Gray, G., Collar, N.J., Dolman, P.M., 2015. The Forest Thrush Turdus lherminieri prefers mature mesic forest with dense canopy. Bird Conservation International 25: 503-513. [download pdf]

Velevski, M., Nikolov, S.C., Hallmann, B., Dobrev, V., Sidiropoulos, L., Saravia, V., Tsiakiris, R., Arkumarev, V., Galanaki, A., Kominos, T., Stara, K., Kret, E., Grubac, B., Lisicanec, E., Kastritis, T., Vavylis, D., Topi, M., Hoxha, B., Oppel, S., 2015. Population decline and range contraction of the Egyptian Vulture Neophron percnopterus on the Balkan Peninsula. Bird Conservation International 25: 440-450. [download pdf]

Demerdzhiev, D., Stoychev, S., Dobrev, D., Spasov, S., Oppel, S., 2015. Studying the demographic drivers of an increasing Imperial Eagle population to inform conservation management. Biodiversity and Conservation 24: 627-639. [download pdf]

Dawson, J., Oppel, S., Cuthbert, R., Holmes, N., Bird, J.P., Butchart, S., Spatz, D., Tershy, B., 2015. Prioritizing islands for the eradication of invasive vertebrates in the UK overseas territories Conservation Biology 29: 143-153. [download pdf]

Oppel, S., Hilton, G. M., Ratcliffe, N., Fenton, C., Daley, J., Gray, G., Vickery, J. A., Gibbons, D., 2014. Assessing population viability while accounting for demographic and environmental uncertainty. Ecology 95: 1809-1818. [download pdf]

Oppel, S., Iankov, P., Mumun, S., Gerdzhikov, G., Iliev, M., Isfendiyaroglu, S., Yeniyurt, C., Tabur, E., 2014. Identification of the best sites around the gulf of Iskenderun, Turkey, for monitoring the autumn migration of Egyptian Vultures and other diurnal raptors. Sandgrouse 36: 240-249. [download pdf]

Oppel, S., Burns, F., Vickery, J., George, K., Ellick, G., Leo, D., Hillman, J. C. 2014. Habitat-specific effectiveness of feral cat control for the conservation of an endemic ground-nesting bird species. Journal of Applied Ecology 52: 1246-1254. [download pdf]

Oppel, S., Marczakiewicz, P., Lachmann, L., Grzywaczewski, G., 2014. Improving Aquatic Warbler population assessments by accounting for imperfect detection. PLoS ONE 9(4): e94406. [download pdf]

Hervias, S., Oppel, S., Medina, F., Pipa, T., Diaz, A., Ramos, J., Ruiz de Ybanez, R., Nogales, M., 2014. Assessing the impacts of introduced cats (Felis catus) on island biodiversity by combining dietary and movement analysis. Journal of Zoology 292: 39-47. [download pdf]

Oppel, S., Hervias, S., Oliveira, N., Pipa, T., Silva, C., Geraldes, P., Goh, M., Immler, E., McKown, M., 2014. Estimating population size of a nocturnal burrow-nesting seabird using acoustic monitoring and habitat mapping. Nature Conservation 7: 1-13. [download pdf]

Oppel, S., Cassini, A., Fenton, C., Daley, J., Gray, G., 2014. Population status and trend of the Critically Endangered Montserrat Oriole. Bird Conservation International 24: 252-261. [download pdf]

Kubacka, J., Oppel, S., Dyrcz, A., Lachmann, L., Barros da Costa, J.P.D., Kail, U., Zdunek, W., 2014. Effect of habitat management on productivity of the endangered aquatic warbler Acrocephalus paludicola. Bird Conservation International 24: 45-58. [download pdf]

Oppel, S., Hilton, G., Allcorn, R., Fenton, C. , Matthews, A. J., Gibbons, D., 2013. The effects of rainfall on different components of seasonal fecundity in a tropical forest passerine. Ibis 155: 464-475. [download pdf]

Hervias, S., Henriques, A., Oliveira, N., Pipa, T., Cowen, H., Ramos, J., Nogales, M., Geraldes, P., Silva, C., Ruiz de Ybanez, R., Oppel, S., 2013. Studying the effects of multiple invasive mammals on Cory's shearwater nest survival. Biological Invasions 15: 143-155. [download pdf]

Angelov, I., Hashim, I., Oppel, S., 2013. Persistent electrocution mortality of Egyptian Vultures Neophron percnopterus over 28 years in East Africa. Bird Conservation International 23: 1-6. [download pdf]

Oppel, S., Hervias, S., Oliveira, N., Pipa, T., Cowen, H., Silva, C., Geraldes, P., 2012. Estimating feral cat density on Corvo Island, Azores, to assess the feasibility of feral cat eradication. Airo 22: 3-11. [download pdf]

Hervias, S., Silva, C., Pipa, T., Oliveira, N., Henriques, A., Geraldes, P., Mealha, S., Diaz, E., Bravo, I., Oppel, S., Medina, F.M., 2012. Invasive mammal species on Corvo Island: is their eradication technically feasible? Airo 22: 12-28. [download pdf]

Michalski, J., Oppel, S., 2012. Lanthanusa bilineata sp. nov. from New Guinea (Odonata: Libellulidae) International Journal of Odonatology 15: 75-80. [download pdf]

Oppel, S., Burns, F., Ellick, G., George, K., Beard, A., Henry, L., Clingham, E., Hillman, J.C., Hollins, J.D., Thorsen, M.J., 2012. Recent observations suggest Bulwer's Petrel Bulweria bulwerii might breed on St Helena. Marine Ornithology 40: 67-68. [download pdf]

Oppel, S., Meirinho, A., Ramirez, I., Gardner, B., O'Connell, A., Miller, P.I., Louzao, M., 2012. Comparison of five modelling techniques to predict the spatial distribution and abundance of seabirds. Biological Conservation 156: 94-104. [download pdf]

Allcorn, R.I., Hilton, G.M., Fenton, C., Atkinson, P.W., Bowden, C.G.R., Gray, G.A.L., Hulme, M., Madden, J., Mackley, E.K., Oppel, S., 2012. Demography and breeding ecology of the critically endangered Montserrat Oriole. Condor 114: 227-235. [download pdf]

Oppel, S., Raine, A.F., Borg, J.J., Raine, H., Bonnaud, E., Bourgeois, K., Breton, A.R., 2011. Is the Yelkouan shearwater Puffinus yelkouan threatened by low adult survival probabilities? Biological Conservation 144: 2255-2263. [download pdf]

Oppel, S., Powell, A.N., Butler, M.G., 2011. King Eider foraging effort during the pre-breeding period in Alaska. Condor 113: 52-60. [download pdf]

Oppel, S., Beaven, B., Bolton, M., Vickery, J.A., Bodey, T.W., 2011. Eradication of invasive mammals on islands inhabited by humans and domestic animals. Conservation Biology 25: 232-240. [download pdf]

Oppel, S., Pain, D.J., Lindsell, J., Lachmann, L., Diop, I., Tegetmeyer, C., Donald, P.F., Anderson, G., Bowden, C.G.R., Tanneberger, F., Flade, M., 2011. High variation reduces the value of feather stable isotope ratios in identifying new wintering areas for aquatic warblers in West Africa. Journal of Avian Biology 42: 342-354. [download pdf]

Flade, M., Diop, I., Haase, M., Le Nevé, A., Oppel, S., Tegetmeyer, C., Vogel, A., Salewski, V., 2011. Distribution, ecology and threat status of the aquatic warblers Acrocephalus paludicola in West Africa. Journal of Ornithology 152: S129-S140. [download pdf]

Buchanan, G.M., Lachmann, L., Tegetmeyer, C., Oppel, S., Nelson, A., Flade, M., 2011. Identifying the potential wintering sites of the globally threatened Aquatic Warbler Acrocephalus paludicola using remote sensing. Ostrich 82: 81-85. [download pdf]

Oppel, S., Federer, R., O'Brien, D.M., Powell, A.N., Hollmén, T., 2010. Effects of lipid extraction on stable isotope ratios in avian egg yolk: is arithmetic correction a reliable alternative? Auk 157: 72-78. [download pdf]

Oppel, S., Mack, A.L., 2010. Bird assemblage and visitation pattern at fruiting Elmerrillia tsiampaca (Magnoliaceae) trees in Papua New Guinea. Biotropica 42: 229-235. [download pdf]

Oppel, S., Powell, A.N., 2010. Age-specific survival estimates for King Eiders derived from satellite telemetry. Condor 112: 323-330. [download pdf]

Michalski, J., Oppel, S., 2010. Two new species of Argiolestes Selys (Odonata: Megapodagrionidae) from Papua New Guinea. International Journal of Odonatology 13: 63-74.

Oppel, S., Powell, A., 2010. Carbon isotope turnover in blood as a measure of arrival time in migratory birds using isotopically distinct environments. Journal of Ornithology 151: 123-131. [download pdf]

Oppel, S., Powell, A.N., O'Brien, D.M., 2010. King eiders use an income strategy for egg production - a case study for incorporating individual dietary variation in nutrient allocation research. Oecologia 164: 1-12. [download pdf]

Oppel, S., Huettmann, F., 2010. Using a Random Forest model and public data to predict the distribution of prey for marine wildlife management. In: Spatial information management in animal science. Eds. Cushman, S., Huettmann, F., pp. 151-163. Springer, Tokyo, Japan.

Oppel, S., Strobl, C., Huettmann, F., 2009. Alternative methods to quantify variable importance in ecology. Technical Report Number 65. Department of Statistics, Ludwig-Maximilians Universität, München, Germany. [download pdf]

Oppel, S., Powell, A.N., Dickson, D.L., 2009. Using an algorithmic model to reveal individually variable movement decisions in a wintering sea duck. Journal of Animal Ecology 78: 524-531. [download pdf]

Oppel, S., Powell, A.N., O' Brien, D.M., 2009. Using eggshell membranes as a non-invasive tool to investigate the source of nutrients in avian eggs. Journal of Ornithology 150: 109-115. [download pdf]

Oppel, S., Dickson, D.L., Powell, A.N., 2009. International importance of the eastern Chukchi Sea as a staging area for migrating King Eiders. Polar Biology 32: 775-783. [download pdf]

Oppel, S., Powell, A.N., 2009. Does winter region affect spring arrival time and body mass of king eiders in northern Alaska? Polar Biology 32: 1203-1209. [download pdf]

Oppel, S., Powell, A.N., Dickson, D.L., 2008. Timing and distance of King Eider migration and winter movements. Condor 110: 296-305. [download pdf]

Oppel, S., 2008. King Eider migration and seasonal interactions at the individual level. PhD Thesis (225 pp). Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, Alaska. [download thesis as pdf, 3.2MB]

Oppel, S., Powell, A.N., 2008. Assigning king eiders to wintering regions in the Bering Sea using stable isotopes of feathers and claws. Marine Ecology Progress Series 373: 149-156. [download pdf]

Michalski, J., Oppel, S., 2007. Papuagrion carcharodon sp. nov. from southern New Guinea (Odonata, Coenagrionidae). International Journal of Odonatology 10: 81-86. [download pdf]

Mack, A.L., Oppel, S., 2006. Nidification of the Dwarf Whistler, Pachycare flavogrisea, a little-known New Guinea endemic. Bulletin of the British Ornithologists' Club 126: 61-64.

Oppel, S., 2006. Comparison of two Odonata communities from a natural and a modified rainforest in Papua New Guinea. International Journal of Odonatology 9: 89-102. [download pdf]

Oppel, S., 2006. Using distance sampling to quantify Odonata density in tropical rainforests. International Journal of Odonatology 9: 81-88. [download pdf]

Beaven, B., Oppel, S., 2006. Re-introduction of endangered forest birds to restored islands: lessons from Ulva Island, New Zealand. Journal of Ornithology 147: 135-136.

Phillips, L.M., Oppel, S., Powell, A.N., 2006. Movements of the King Eider during the non-breeding period revealed by satellite telemetry. Journal of Ornithology 147: 118-119.

Oppel, S., 2006. Site fidelity and dispersal of adult Neurobasis awamena Michalski in tropical rainforest streams in Papua New Guinea (Zygoptera: Calopterygidae). Odonatologica 35: 331-339. [download pdf]

Oppel, S., 2005. Increasing awareness of dragonflies in Papua New Guinea. Agrion 9: 15-16.

Oppel, S., 2005. Long-term changes in the breeding community of coastal bird species on a small island - does natural succession compromise conservation values? Biodiversity and Conservation 14: 3407-3422. [download pdf]

Oppel, S., 2005. Die Heuschreckenfauna der jungen Düneninsel Trischen im schleswig-holsteinischen Wattenmeer. Drosera 1/2005: 1-5.

Oppel, S., 2005. Odonata in the Crater Mountain Wildlife Management Area, Papua New Guinea. IDF-Report 7: 1-28. [download summary poster as pdf]

Oppel, S., 2005. Habitat associations of an Odonata community in a lower montane rainforest in Papua New Guinea. International Journal of Odonatology 8: 243-257. [download pdf]

Oppel, S., Schaefer, H.M., Schmidt, V., Schröder, B., 2004. Habitat selection by the pale-headed brush-finch (Atlapetes pallidiceps) in Southern Ecuador: implications for conservation. Biological Conservation 118: 33-40. [download pdf]

Oppel, S., Schaefer, H.M., Schmidt, V., Schröder, B., 2004. Cowbird parasitism of Pale-headed Brush-finch Atlapetes pallidiceps: implications for conservation and management. Bird Conservation International 14: 63-75. [download pdf]

Oppel, S., Schaefer, H.M., Schmidt, V., Schröder, B., 2004. How much suitable habitat is left for the last known population of the Pale-headed Brush-Finch? Condor 106: 429-434. [download pdf]

Oppel, S., Stock, M., 2004. Reconsidering species extinctions in National Parks: a reply to Berger. Conservation Biology 18: 845-846. [download pdf]

Oppel, S., Beaven, B.M., 2004. Habitat use and foraging behaviour of Mohua (Mohoua ochrocephala) in the podocarp forest of Ulva Island, New Zealand. Emu 104: 235-240. [download pdf]

Oppel, S., Beaven, B.M., 2004. Juvenile Stewart Island robins (Petroica australis rakiura) disperse up to 16 km. Notornis 51: 55-56. [download pdf]

Oppel, S., Beaven, B.M., 2004. Survival and dispersal of mohua (Mohoua ochrocephala, Pachycephalidae) after transfer to Ulva Island, New Zealand. Notornis 51: 116. [download pdf]

Oppel, S., 2004. Natural dynamics shaping the bird community on an island. Wadden Sea Newsletter 1/04: 11-12.

Oppel, S., 2003. The role of breeding biology, habitat selection, and cowbird parasitism for the conservation of the Pale-headed Brush-Finch Atlapetes pallidiceps in southern Ecuador. MSc Thesis (220 pp). Carl-von-Ossietzky Universität, Oldenburg. [download pdf]

Oppel, S., 2003. Hat Trischen als Vogelinsel ausgedient? Wattenmeer International 12/3: 17-18.

Oppel, S., Schaefer, H.M., Schmidt, V., 2003. Description of the nest, eggs and breeding behavior of the endangered Pale-headed Brush-Finch in Ecuador. Wilson Bulletin 115: 360-366. [download pdf]

Oppel, S., Beaven, B.M., 2002. Stewart Island robins (Petroica australis) fly home after transfer to Ulva Island. Notornis 49: 180-181.

Oppel, S., 2001. Die Vögel des Vehnemoores (Landkreis Cloppenburg). Jahresbericht der Ornithologischen Arbeitsgemeinschaft Oldenburg 16: 59-77.

Oppel, S., Steinborn, B., 2001. Brut- und Rastvögel der Klärschlammdeponie Edewecht (Landkreis Cloppenburg) 1998-2000. Jahresbericht der Ornithologischen Arbeitsgemeinschaft Oldenburg 16: 30-58.

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