
2013
59) Meise, K., Krüger, O., Piedrahita, P. & Trillmich, F. Site fidelity of male Galapagos sea lions: a lifetime perspective. Behav. Ecol. Sociobiol.: in press.
58) Meise, K., Krüger, O., Piedrahita, P., Mueller, A. & Trillmich, F. Proximity loggers on amphibious mammals: a new method to study social relations in their terrestrial habitat. Aquatic Biol. 18: 81-89. ![]()
2012
57) Chakarov, N., Greiner, J., Hauser, S., Schuetzmann, D., Krüger, O., Boerner, M. & Widera, D. Label-free enrichment of avian Leucocytozoons using flow cytometric sorting. Parasitology 139: 1547-1552.
56) Krause, E.T., Krüger, O., Kohlmeier, P. & Caspers, B.A. Olfactory kin recognition in a songbird. Biol. Lett. 8: 327-329.
55) Krüger, O., Chakarov, N., Nielsen, J.T., Looft, V., Grünkorn, T., Struwe-Juhl, B. & Moller, A.P. Population regulation by habitat heterogeneity or individual adjustment? J. Anim. Ecol. 81: 330-340.
2011
54) Krüger, O. Brood parasitism selects for no defence in a cuckoo host. Proc. R. Soc. Lond. B 278: 2777-2783.
2010
53) Chakarov, N. & Krüger, O. Mesopredator release by an emergent superpredator: a natural experiment of predation in a three level guild. PLoS One 5: e15229.
52) Krüger, O., Grünkorn, T. & Struwe-Juhl, B. The return of the white-tailed eagle (Haliaeetus albicilla) to northern Germany: modelling the past to predict the future. Biol. Conserv. 143: 710-721.![]()
2009
51) Krüger, O., Sorenson, M.D. & Davies, N.B. Does coevolution promote species richness in parasitic cuckoos? Proc. R. Soc. Lond. B 276: 3871-3879.![]()
50) Boerner, M. & Krüger, O. Aggression and fitness differences between plumage morphs in the common buzzard (Buteo buteo). Behav. Ecol. 20: 180-185.![]()
49) Krüger, O. Common buzzard, goshawk, eagle owl: a natural experiment in Eastern Westphalia. Populationsökol. Greifvögel und Eulen 6: 303-312.
2008
48) Boerner, M. & Krüger, O. Why do parasitic cuckoos have small brains? Insights from evolutionary sequence analyses. Evolution 62: 3157-3169.![]()
47) Chakarov, N., Boerner, M. & Krüger, O. Fitness in common buzzards at the cross-point of opposite melanin-parasite interactions. Funct. Ecol. 22: 1062-1069.![]()
46) Krüger, O. Engines of speciation: a comparative study in birds of prey. J. Evol. Biol. 21: 861-872.![]()
45) Krüger, O. & Radford, A.N. Doomed to die? Predicting extinction risk in the true hawks Accipitridae. Anim. Conserv. 11: 83-91.![]()
2007
44) Krüger, O. Cuckoos, cowbirds and hosts: adaptations, trade-offs and constraints. Phil. Trans. R. Soc. Lond. B 362: 1873-1886.![]()
43) Krüger, O. Long-term demographic analysis in goshawk Accipiter gentilis: the role of density-dependence and stochasticity. Oecologia 152: 459-471.![]()
42) Krüger, O., Davies, N.B. & Sorenson, M.D. The evolution of sexual dimorphism in parasitic cuckoos: sexual selection or coevolution? Proc. R. Soc. Lond. B 274: 1553-1560.![]()
2005
41) Krüger, O. The evolution of reversed size dimorphism in hawks, falcons and owls: a comparative analysis. Evol. Ecol. 19: 467-486.![]()
40) Krüger, O. Age at first breeding and fitness in goshawk Accipiter gentilis. J. Anim. Ecol. 74: 266-273. ![]()
39) Krüger, O., Radford, A.N., Anderson, C. & Liversidge, R. Successful sons or superior daughters: sex-ratio variation in springbok. Proc. R. Soc. Lond. B 272: 375-381.![]()
38) Krüger, O. The role of ecotourism in conservation: panacea or Pandora's box? Biodivers. Conserv. 14: 579-600.![]()
2004
37) Krüger, O. Breeding biology of the Cape bulbul Pycnonotus capensis: a 40 year comparison. Ostrich 75: 211-216.![]()
36) Brooke, M. de L., Copas, V., Gylee, R. & Krüger, O. Long-lived fellows. Trends Ecol. Evol. 19: 8.![]()
35) Krüger, O. The importance of competition, food, habitat, weather and phenotype for the reproduction of Buzzard Buteo buteo. Bird Study 51: 125-132.![]()
34) Johnson, D.D.P. & Krüger, O. The good of wrath: supernatural punishment and the evolution of cooperation. Polit. Theol. 5: 157-173.![]()
33) Krüger, O. & Davies, N.B. The evolution of egg size in the brood parasitic cuckoos. Behav. Ecol. 15: 210-218.![]()
2003
32) Fowlie, M.K. & Krüger, O. The evolution of plumage polymorphism in birds of prey and owls: the apostatic selection hypothesis revisited. J. Evol. Biol. 16: 577-583.![]()
2002
31) Krüger, O. Dissecting common buzzard lifetime reproductive success: the relative importance of food, competition, weather, habitat and individual attributes. Oecologia 133: 474-482.![]()
30) Krüger, O. Analysis of nest occupancy and nest reproduction in two sympatric raptors: common buzzard Buteo buteo and goshawk Accipiter gentilis. Ecography 25: 523-532.![]()
29) Krüger, O., Liversidge, R. & Lindström, J. Statistical modelling of the population dynamics of a raptor community in a semi-desert environment. J. Anim. Ecol. 71: 603-613.![]()
28) Krüger, O. & Davies, N.B. The evolution of cuckoo parasitism: a comparative analysis. Proc. R. Soc. Lond. B 269: 375-381.![]()
27) Krüger, O. Interactions between Common Buzzard Buteo buteo and Goshawk Accipiter gentilis: trade-offs revealed by a field experiment. Oikos 96: 441-452.![]()
2001
26) Krüger, O. & Alio, C.P. Bird observations during the cruise ANT XVII/3. Reports on Polar and Marine Research 402: 121-123.
25) Sartoris, F.J., Krüger, O. & Klein, B. Temperature physiology of Antarctic invertebrates. Reports on Polar and Marine Research 402: 129-131.
24) Krüger, O., Lindström, J. & Amos, W. Maladaptive mate choice maintained by heterozygote advantage. Evolution 55: 1207-1214.![]()
23) Krüger, O. & Lindström, J. Habitat heterogeneity affects population growth in goshawk Accipiter gentilis. J. Anim. Ecol. 70: 173-181.![]()
22) Krüger, O. & Lindström, J. Lifetime reproductive success in Common Buzzard Buteo buteo: from individual variation to population demography. Oikos 93: 260-273.![]()
21) Krüger, O., Webster, J.P., Packer, M.J., Robinson, T.P., Ndamba, J. & Woolhouse, M.E.J. Genetic analysis of the population structure of the two sympatric freshwater snails Bulinus globosus and Biomphalaria pfeifferi from the Zimbabwean highveld incorporating satellite remotely sensed data. In: Proc. 3rd Workshop on medical and veterinary malacology in Africa (ed. Madsen, H., Appleton, C.C. & Chimbari, M.), pp. 169-181. Danish Bilharziasis Laboratory.
20) Davies, C.M., Webster, J.P., Munatsi, A., Krüger, O., Ndamba, J., Noble, L.R. & Woolhouse, M.E.J. Population genetics of snails and schistosomes in the Zimbabwean highveld. In: Proc. 3rd Workshop on medical and veterinary malacology in Africa (ed. Madsen, H., Appleton, C.C. & Chimbari, M.), pp. 65-81. Danish Bilharziasis Laboratory.
19) Krüger, O. & McGavin, G.C. Predator-prey ratio and guild constancy in a tropical insect community. J. Zool. 253: 265-273.![]()
2000
18) Krüger, O. Correlates of population density and body weight of raptors in the family Accipitridae: a comparative study. J. Zool. 250: 185-192.![]()
17) Krüger, O. & McGavin, G.C. Macroecology of local insect communities. Acta Oecologica 21: 21-28.![]()
16) Krüger, O. & Stefener, U. Populationsfluktuation und die Rolle der Reproduktion in einer Population des Habichts Accipiter gentilis. Populationsökol. Greifvögel und Eulen 4: 263-271.
1999
15) Davies, C.M., Webster, J.P., Krüger, O., Munatsi, A., Ndamba, J. & Woolhouse, M.E.J. Host-parasite population genetics: a cross-sectional comparison of Bulinus globosus and Schistosoma haematobium. Parasitology 119: 295-302.![]()
14) Krüger, O., Großpietsch, H., Hirse, T. & Knust, R. Physiological adaptations to cold in Antarctic ectotherms. Reports on Polar Research 301: 194-198.
13) Lombarte, A. & Krüger, O. Seabird observations along the cruise ANT XV/3. Reports on Polar Research 301: 223-224.
1998
12) Krüger, O. Population fluctuation and movements of Lesser Flamingos (Phoenicopterus minor) in Kyambura Game Reserve, Southwest Uganda. Scopus 20: 33-38.
11) Krüger, O. & McGavin, G.C. Insect species richness of Acacia canopies in Mkomazi Game Reserve, north-east Tanzania. Ecography 21: 261-268.![]()
10) Krüger, O. & McGavin, G.C. The influence of ants on the guild structure of Acacia insect communities in Mkomazi Game Reserve, north-east Tanzania. Afr. J. Ecol. 36: 213-220.![]()
9) Krüger, O., Affeldt, E., Brackmann, M. & Milhahn, K. Group size and composition of Colobus guereza in Kyambura Gorge, southwest Uganda, in relation to chimpanzee activity. Int. J. Primatol. 19: 287-297.![]()
1997
8) Krüger, O. Population density and intra and inter-specific competition of the African Fish Eagle (Haliaeetus vocifer). Ibis 139: 19-24.![]()
7) Krüger, O. Entgegnung zur Kritik von R. Altenkamp an Krüger & Stefener (1996). Vogelwelt 118: 341-344.
6) Krüger, O. & McGavin, G.C. The insect fauna of Acacia species in Mkomazi Game Reserve, north-east Tanzania. Ecol. Entomol. 22: 440-444.![]()
1996
5) Krüger, O. Besonderheiten der Revierstruktur des Habichts im Teutoburger Wald. Charadrius 37: 110-112.
4) Krüger, O. & Johnson, D. Bird communities in Kyambura Game Reserve, south west Uganda. Ibis 138: 564-567.![]()
3) Krüger, O. & Stefener, U. Nahrungsökologie und Populationsdynamik des Habichts (Accipiter gentilis) im östlichen Westfalen. Vogelwelt 117: 1-8.
1995
2) Krüger, O. Revierverhalten des Mäusebussards in Ostwestfalen. Young Researcher 10: issue 40: 32-37.
1992
1) Krüger, O. Was schmeckt dem Mäusebussard? Young Researcher 7: issue 17: 12-16.
2011
6) Chakarov, N., Boerner, M. & Krüger, O. Biological consequences of plumage polymorphism in common buzzard. In: Forest raptors. Conservation, ecology, behaviour and management implications (Zuberogoitia, I. & Martinez, J. E., eds.), pp. 235-241.
2008
5) Krüger, O. Alternative reproductive tactics in birds. In: Alternative reproductive tactics: an integrative approach (Oliveira, R. F., Taborsky, M. & Brockmann, J., eds.), pp. 343-355. Cambridge University Press.
2007
4) Krüger, O. & Brooke, M. de L. Brood parasitism in birds. In: Reproductive biology and phylogeny of Aves (Jamieson, B. G. M. ed.), pp. 327-366. Science Publishers Inc., New Hampshire.
2004
3) Krüger, O. Nest site selection in Northern Goshawk: linking habitat choice to individual fitness and population dynamics. In: Habitat management for endangered raptors; habitat analysis, conservation and assessment (Abe, M. ed.), pp. 91-104. Tokyo.
2002
2) Krüger, O. Der Habicht (Accipiter gentilis). In: Die Vögel Westfalens (NWO, eds.), pp. 70-71. Beiträge zur Avifauna Nordrhein-Westfalens, vol. 37. Bonn.
1) Krüger, O. Der Mäusebussard (Buteo buteo). In: Die Vögel Westfalens (NWO, eds), pp. 74-75. Beiträge zur Avifauna Nordrhein-Westfalens, vol. 37. Bonn.
2008
7) Krüger, O. Evolution von Lebenslaufstrategien: Individuen, Fitness, Populationen. Zoologie 2008: 9-16.
2000
6) Krüger, O. Life history strategies and population dynamics of Common Buzzard Buteo buteo and Goshawk Accipiter gentilis. PhD thesis, University of Bielefeld, 182 pp.
1998
5) Russell-Smith, J., Davies, J., McGavin, G. C. & Krüger, O. Invertebrate biodiversity of the Mkomazi Game Reserve, Tanzania: Final technical report for the Darwin Initiative funded project. Darwin Initiative.
1997
4) Krüger, O. Community structure and biodiversity of the insect fauna of Acacia species in Mkomazi Game Reserve, north-east Tanzania. MSc thesis, Oxford University, 116 pp.
3) Krüger, O. Analysis of genetic variation in the schistosome intermediate host Bulinus globosus from the Zimbabwean highveld using random amplified polymorphic DNA (RAPD) markers. MSc thesis, Oxford University, 102 pp.
1994
2) Krüger, O. Population density, territorial behaviour and competition of Common Buzzard (Buteo buteo) and Goshawk (Accipiter gentilis). 6th European Union Contest for Young Scientists, Luxembourg, 23 pp.
1991
1) Krüger, O. Revierverhalten und Nahrungsökologie von Buteo buteo. 26th German National Young Scientist Contest, Würzburg, 15 pp.

