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Ronny Steen
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Diel activity, frequency and visit duration of pollinators in focal plants: in situ automatic camera monitoring and data processing
R Steen
Methods in Ecology and Evolution 8 (2), 203-213, 2017
632017
A portable digital video surveillance system to monitor prey deliveries at raptor nests
R Steen
Journal of Raptor Research 43 (1), 69-74, 2009
582009
Evolution of parental roles in provisioning birds: diet determines role asymmetry in raptors
GA Sonerud, R Steen, V Selås, OM Aanonsen, GH Aasen, KL Fagerland, ...
Behavioral Ecology 25 (4), 762-772, 2014
562014
Parents adjust feeding effort in relation to nestling age in the Eurasian Kestrel (Falco tinnunculus)
R Steen, GA Sonerud, T Slagsvold
Journal of Ornithology 153, 1087-1099, 2012
552012
Size-biased allocation of prey from male to offspring via female: family conflicts, prey selection, and evolution of sexual size dimorphism in raptors
GA Sonerud, R Steen, LM Løw, LT Røed, K Skar, V Selås, T Slagsvold
Oecologia 172, 93-107, 2013
472013
Portable digital video surveillance system for monitoring flower-visiting bumblebees
R Steen, A Aase
Journal of Pollination Ecology 5 (13), 90-94, 2011
432011
The feeding constraint hypothesis: prey preparation as a function of nestling age and prey mass in the Eurasian kestrel
R Steen, LM Løw, GA Sonerud, V Selås, T Slagsvold
Animal Behaviour 80 (1), 147-153, 2010
392010
Prey delivery rates as estimates of prey consumption by Eurasian Kestrel Falco tinnunculus nestlings
R Steen, LM Løw, GA Sonerud, V Selås, T Slagsvold
Ardea 99 (1), 1-8, 2011
352011
Evolution of parental roles in raptors: prey type determines role asymmetry in the Eurasian kestrel
GA Sonerud, R Steen, LM Løw, LT Røed, K Skar, V Selås, T Slagsvold
Animal Behaviour 96, 31-38, 2014
332014
Pollination of Platanthera chlorantha (Orchidaceae): new video registration of a hawkmoth (Sphingidae)
R Steen
Nordic Journal of Botany 30 (5), 623-626, 2012
332012
Volatiles composition and timing of emissions in a moth-pollinated orchid in relation to hawkmoth (Lepidoptera: Sphingidae) activity
R Steen, HR Norli, G Thöming
Arthropod-Plant Interactions 13, 581-592, 2019
262019
Food provisioning in a generalist predator: selecting, preparing, allocating and feeding prey to nestlings in the Eurasian kestrel (Falco tinnunculus)
R Steen
Norwegian University of Life Sciences, Ås, 2010
252010
Delivery of Common Lizards (Zootoca (Lacerta) vivipara) to nests of Eurasian Kestrels (Falco tinnunculus) determined by solar height and ambient temperature
R Steen, LM Løw, GA Sonerud
Canadian Journal of Zoology 89 (3), 199-205, 2011
242011
A bank vole (Myodes glareolus) with complete leucism captured by a Eurasian kestrel (Falco tinnunculus) in Norway
R Steen, GA Sonerud
Annales Zoologici Fennici 49 (5), 306-308, 2012
232012
New video registration of Autographa pulchrina (Haworth, 1809)(Lepidoptera, Noctuidae) and Sphinx pinastri L., 1758 (Lepidoptera, Sphingidae) pollinating Platanthera bifolia …
R Steen, D Mundal
Norwegian Journal of Entomology 60 (1), 57-61, 2013
222013
Succession of beetles (genus Cis) and oribatid mites (genus Carabodes) in dead sporocarps of the red-banded polypore fungus Fomitopsis pinicola
S Hågvar, R Steen
Scandinavian journal of forest research 28 (5), 436-444, 2013
192013
Plastic mistaken for prey by a colony-breeding Eleonora's falcon (Falco eleonorae) in the Mediterranean Sea, revealed by camera-trap
R Steen, CS Torjussen, DW Jones, T Tsimpidis, A Miliou
Marine Pollution Bulletin 106 (1-2), 200-201, 2016
152016
Video-surveillance system for remote long-term in situ observations: recording diel cavity use and behaviour of wild European lobsters (Homarus gammarus)
R Steen, S Ski
Marine and Freshwater Research 65 (12), 1094-1101, 2014
142014
Diel activity of foraging Eurasian red squirrels (Sciurus vulgaris) in the winter revealed by camera traps
R Steen, M Barmoen
Hystrix 28 (1), 43, 2017
132017
Direct and indirect weather impacts on spring populations of lesser spotted woodpecker (Dendrocopos minor) in Norway
V Selås, R Steen, S Kobro, T Lislevand, I Stenberg
Scandinavian Journal of Forest Research 23 (2), 148-153, 2008
132008
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Artiklar 1–20