Výsledky vyhledávání - "Pekka Rusanen"

Cormorants have negligible seascape-scale impacts on benthic vegetation communities

Autor: Elina Virtanen, Marco Nurmi, Karine Gagnon, Markku Viitasalo, Pekka Rusanen, Veijo Jormalainen

Publikováno v: Marine Ecology Progress Series. 654:195-207

Great cormorant Phalacrocorax carbo sinensis populations in the Baltic Sea have rapidly expanded since the 1990s, raising concerns about their ecosystem impacts. Nutrient runoff from colonies, as well as cormorant predation on fish, can affect surrou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f98be9ee393876599a02c6d429783438
https://doi.org/10.3354/meps13494

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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

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Cormorant predation mortality of perch (Perca fluviatilis) in coastal and archipelago areas, northern Baltic Sea

Autor: Outi Heikinheimo, Timo J Marjomäki, Mikko Olin, Pekka Rusanen

Perch (Perca fluviatilis) is an important prey species of the great cormorant (Phalacrocorax carbo sinensis) in the coastal waters of the northern Baltic Sea. The annual predation mortality caused by cormorants was estimated based on the consumed num

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c36351155b77801db4090aef6cf14ba8
http://urn.fi/URN:NBN:fi:jyu-202202171553

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Alien predation in wetlands – the Raccoon Dog and water birds breeding success

Autor: Veli-Matti Väänänen, Antti-Juhani Pekkarinen, Markku Mikkola-Roos, Antti Rautiainen, Pekka Rusanen, Visa Eronen, Petri Nummi, Jarkko Nurmi

Publikováno v: BALTIC FORESTRY. 25:228-237

Alien predators are known to potentially strongly affect their prey populations. We studied the impact of raccoon dogs (Nyctereutes procyonoides) on waterbird breeding success in eight semi-urban wetlands in Finland. We manipulated raccoon dog densit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1315664135c23740288d0cbf5ca82784
https://doi.org/10.46490/vol25iss2pp228

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The role of cormorants, fishing effort and temperature on the catches per unit effort of fisheries in Finnish coastal areas

Autor: Pekka Rusanen, Outi Heikinheimo, Hannu Väinö Tapani Lehtonen, Aleksi Lehikoinen

Publikováno v: Fisheries Research. 190:175-182

Population increase of piscivorous cormorants in Europe and in North America has created a conflict between fisheries and the species. The impact of cormorants on natural fish populations and yields of fishermen is still under debate. We investigated

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a65301d0b34594e38acb0d7b1df02c02
https://doi.org/10.1016/j.fishres.2017.02.008

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Estimating the mortality caused by great cormorant predation on fish stocks: pikeperch in the Archipelago Sea, northern Baltic Sea, as an example

Autor: Katja Korhonen, Outi Heikinheimo, Pekka Rusanen

Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 73:84-93

Estimates of the mortality rates caused by cormorants are needed to assess the impact on fish stock dynamics and fisheries. In this study, we calculated the annual instantaneous mortality caused by great cormorants (Phalacrocorax carbo sinensis) on y

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c795847329121ed9adeebe6919f7b73f
https://doi.org/10.1139/cjfas-2015-0033

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Analysis of Technology Management Functions in Finnish High Tech Companies

Autor: Hanna Kropsu-Vehkapera, Jukka-Pekka Rusanen, Harri Haapasalo

Publikováno v: The Open Management Journal. 2:1-10

Technology management (TM) for companies is about sustaining and improving a company's competitiveness in the long-term. The aim of this study is to identify the common perception of TM functions in Finnish high tech compa- nies, which elements are t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be41d2b1508e725b59db8467e7054e95
https://doi.org/10.2174/1874948800902010001

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