Occurrence and Behaviour of White-Tailed Eagles Haliaeetus albicilla in Great Cormorant Phalacrocorax Carbo Sinensis Colonies in Countries around the Baltic Sea

Autor: Thomas Bregnballe, Jesper Tofft, Jana Kotzerka, Aleksi Lehikoinen, Pekka Rusanen, Christof Herrmann, Oliver Krone, Henri Engström, Kalev Rattiste, Jürgen Reich, Sergey A. Kouzov

Publikováno v: Bregnballe, T, Tofft, J, Kotzerka, J, Lehikoinen, A, Rusanen, P, Herrmann, C, Engström, H, Rattiste, K, Reich, J & Kouzov, S A 2021, ' Occurrence and behaviour of White-tailed Eagles Haliaeetus albicilla in Great Cormorant Phalacrocorax carbo sinensis colonies in countries around the Baltic Sea ', Ardea, vol. 109, no. 3, pp. 565-582 . https://doi.org/10.5253/arde.v109i2.a24

The recovery of the Baltic White-tailed Eagle Haliaeetus albicilla populationsince the 1980s is a conservation success story. However, the re-establishmentof this predator in coastal and lake areas appears to affect Great CormorantsPhalacrocorax carb

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbb03c7a091129813c492fb13f90260d
http://hdl.handle.net/10138/346610

Stopover behaviour of spring migrating Wood Warblers Phylloscopus sibilatrix on the Island of Capri, Italy

Autor: Noél M A Holmgren, Henri Engström

Publikováno v: Ornis Svecica. 16:34-41

Migratory birds are assumed to be under strong selection pressure during migration. It is generally assumed that many species are maximizing speed of migration because of the benefits from arriving early at the breeding grounds. Males’ incentives a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::69a20c19b510e93a16c3701a17281af0
https://doi.org/10.34080/os.v16.22721

Long term effects of cormorant predation on fish communities and fishery in a freshwater lake

Autor: Henri Engström

Publikováno v: Ecography. 24:127-138

Cormorant impact upon natural fish populations has long been debated but little studied because of the requirements of sound data that are often hard to fill. In this study I have monitored fish community composition/abundance before and after a corm

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https://doi.org/10.1034/j.1600-0587.2001.240203.x

Absence of Haematozoa and Ectoparasites in a Highly Sexually Ornamented Species, The Crested Auklet

Autor: Henri Engström, Reija Dufva, Gunilla Olsson, Henri Engstrom

Publikováno v: Waterbirds: The International Journal of Waterbird Biology. 23:486

We studied the prevalence of hematozoa/ectoparasites of Crested Auklets (Aethia cristatella) at Talan Island in the northwestern Sea of Okhotsk, Russia to investigate whether individual differences in the degree of ornamentation could be related to p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dbe508d3484224d302cb564e8e524b66
https://doi.org/10.2307/1522187