Blar i NINA Brage på forfatter "May, Roelof Frans"
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Assessing the effect of sample bias correction in species distribution models
Dubos, Nicolas; Préau, Clémentine; Lenormand, Maxime; Papuga, Guillaume; Monsarrat, Sophie; Denelle, Pierre; Louarn, Marine Le; Heremans, Stien; May, Roelof Frans; Roche, Philip; Luque, Sandra (Peer reviewed; Journal article, 2022)1. Open-source biodiversity databases contain a large number of species occurrence records but are often spatially biased; which affects the reliability of species distribution models based on these records. Sample bias ... -
Behavioural and demographic changes in impala populations after 15 years of improved conservation management
Flølo, Linn Marie; Hunninck, Louis Marcel; May, Roelof Frans; Jackson, Craig Ryan; Setsaas, Trine Hay; Holmern, Tomas; Røskaft, Eivin (Peer reviewed; Journal article, 2021)Many protected areas (PAs) have been created globally in response to the dramatic human- induced decline in biodiversity. However, not all PAs successfully preserve their biodiversity and continued monitoring is vital to ... -
Being stressed outside the park — conservation of African elephants (Loxodonta africana) in Namibia
Hunninck, Louis; Ringstad, Iris; Jackson, Craig Ryan; May, Roelof Frans; Fossøy, Frode; Uiseb, Kenneth; Killian, Werner; Røskaft, Eivin (Journal article; Peer reviewed, 2017)The conservation of the African savanna elephant (Loxodonta africana) is of prime importance for many African countries. Interactions between elephants and humans are known to induce stress and thereby have the potential ... -
Boat disturbance effects on moulting common eiders Somateria mollissima
Dehnhard, Nina; Skei, Jørgen; Christensen-Dalsgaard, Signe; May, Roelof Frans; Halley, Duncan John; Ringsby, Thor Harald; Lorentsen, Svein Håkon (Peer reviewed; Journal article, 2020)Ship and boat traffic are increasing sources of disturbance to marine wildlife. During moult, sea ducks are flightless and rely on productive and shallow feeding areas. However, this period coincides with the peak of the ... -
Captive-breeding population supplementation and reintroduction as tools to conserve endangered Arctic fox populations in Norway : detailed proposal and progress 2001-2004
Linnell, John Durrus; Landa, Arild; Andersen, Roy; Strand, Olav; Eide, Nina Elisabeth; van Dijk, Jiska Joanneke; May, Roelof Frans (NINA Oppdragsmelding;825, Research report, 2004)Within its Holarctic distribution, the global population of Artic foxes (Alopex lagopus) appears to be large and stable, however the populations of Fennoscandia were already endangered in the late 1920’s. This led to their ... -
Collision risk in white-tailed eagles. Modelling collision risk using vantage point observations in Smøla wind-power plant
May, Roelof Frans; Lund, Pernille Andersen; Langston, Rowena; Dahl, Espen Lie; Bevanger, Kjetil Modolv; Reitan, Ole; Nygård, Torgeir; Pedersen, Hans-Christian; Stokke, Bård Gunnar; Røskaft, Eivin (NINA rapport;639, Research report, 2010)May, R., Hoel, P.L., Langston, R., Dahl, E.L., Bevanger, K., Reitan, O., Nygård, T., Pedersen, H.C., Røskaft, E. & Stokke, B.G. 2010. Collision risk in white-tailed eagles. Modelling collision risk using vantage point ... -
Collision risk in white-tailed eagles. Modelling kernel-based collision risk using satellite telemetry data in Smøla wind power plant
May, Roelof Frans; Nygård, Torgeir; Dahl, Espen Lie; Reitan, Ole; Bevanger, Kjetil Modolv (NINA Rapport;692, Research report, 2011)Store rovfugler, som havørn, er kjent for å være sårbare for kollisjoner med turbiner i vindkraft-verk. Deres dødelighet er benyttet i modeller for kollisjonsrisiko i forbindelse med planlegging-en av ny vindkraftutbygging. ... -
Differential barrier and corridor effects of power lines,roads and rivers on moose (Alces alces) movements
Bartzke, Gundula; May, Roelof Frans; Solberg, Erling Johan; Rolandsen, Christer Moe; Røskaft, Eivin (Journal article; Peer reviewed, 2015)uilding new power lines is required to satisfy increasing demands for the transmission of electricity, and at the same time the road network is expanding. To provide guidelines for the routing of new power lines and ... -
Diurnal and nocturnal movements of Kori Bustards in the Serengeti ecosystem
Mmassy, Emmanuel Clamsen; Ranke, Peter S.; Lesio, Nicephor; Jackson, Craig Ryan; May, Roelof Frans; Røskaft, Eivin (Peer reviewed; Journal article, 2022) -
DNA-basert overvåking av de små skogsjervbestandene i Gävleborgs og Västernorrlands län. Rapport 2006
Flagstad, Øystein; May, Roelof Frans; Wärdig, Cecilia; Johansson, Malin; Ellegren, Hans (NINA Rapport;265, Research report, 2007)Flagstad, Ø., May, R., Wärdig, C., Johansson, M., Ellegren, H. 2007. DNA-basert overvåking av de små skogsjervbestandene i Gävle-borgs og Västernorrlands län. Rapport 2006 - NINA Rapport 265, 15 s. På midten av 1990-tallet ... -
Do birds in flight respond to (ultra)violet lighting?
May, Roelof Frans; Åström, Jens; Hamre, Øyvind; Dahl, Espen Lie (Journal article; Peer reviewed, 2017)Concerns for bird collisions with wind turbines affect the deployment of onshore and offshore windpower plants. To avoid delays in consenting processes and to streamline the construction and operation phase, functional ... -
Do birds respond to spiral markers on overhead wires of a high-voltage power line? Insights from a dedicated avian radar
Pavòn-Jordàn, Diego; Stokke, Bård Gunnar; Åström, Jens; Bevanger, Kjetil Modolv; Hamre, Øyvind; Torsæter, Ellen; May, Roelof Frans (Peer reviewed; Journal article, 2020)Growing human population demands the expansion of the energy transmission grid. Power lines represent a major death hazard for many species, especially birds. Addressing such a human-wildlife conflict requires detailed ... -
Effect of human–elephant conflict on local attitudes toward the conservation of wild Asian elephants in Myanmar
Thant, Zaw Min; May, Roelof Frans; Røskaft, Eivin (Peer reviewed; Journal article, 2022)The study of attitudes toward wild elephants and human–elephant conflict (HEC) is vital to understanding what attitudes are held by local people and how to incorporate them into wild elephant conservation. This study ... -
Effect of tower base painting on willow ptarmigan collision rates with wind turbines
Stokke, Bård Gunnar; Nygård, Torgeir; Falkdalen, Ulla; Pedersen, Hans Christian; May, Roelof Frans (Peer reviewed; Journal article, 2020)1. Birds colliding with turbine rotor blades is a well-known negative consequence of wind-power plants. However, there has been far less attention to the risk of birds colliding with the turbine towers, and how to mitigate ... -
Enabling Renewable Energy While Protecting Wildlife: An Ecological Risk-Based Approach to Wind Energy Development Using Ecosystem-Based Management Values
Copping, Andrea E.; Gorton, Alicia M.; May, Roelof Frans; Bennet, Finlay; DeGeorge, Elise; Goncalves, Miguel Repas; Rumes, Bob (Peer reviewed; Journal article, 2020)Acceptance of wind energy development is challenged by stakeholders’ concerns about potential effects on the environment, specifically on wildlife, such as birds, bats, and (for offshore wind) marine animals, and the ... -
Environmental benefits of leaving offshore infrastructure in the ocean
Fowler, Ashley M.; Jørgensen, Anne-Mette; Svendsen, Jon C.; Macreadie, Peter I.; Jones, Daniel O.B.; Boon, Arjen R.; Booth, David J.; Brabant, Robin; Callahan, Emily; Claisse, Jeremy T.; Dahlgren, Thomas G.; Degraer, Steven; Dokken, Quenton R.; Gill, Andrew B.; Johns, David G.; Leewis, Robert J.; Lindeboom, Han J.; Linden, Olof; May, Roelof Frans; Murk, Albertinka J.; Ottersen, Geir; Schroeder, Donna M.; Shastri, Sunil M.; Teilmann, Jonas; Todd, Victoria; Hoey, Gert Van; Vanaverbeke, Jan; Coolen, Joop W.P. (Journal article; Peer reviewed, 2018)The removal of thousands of structures associated with oil and gas development from the world’s oceans is well underway, yet the environmental impacts of this decommissioning practice remain unknown. Similar impacts will ... -
Evaluating the use of local ecological knowledge (LEK) in determining habitat preference and occurrence of multiple large carnivores
Madsen, Emily K.; Elliot, Nicholas B.; Mjingo, Ernest E.; Masenga, Emmanuel H.; Jackson, Craig Ryan; May, Roelof Frans; Røskaft, Eivin; Broekhuis, Femke (Peer reviewed; Journal article, 2020)Understanding habitat preferences and distribution of threatened species is a cornerstone of conservation, however many of the techniques available can be resource intensive. One cost-effective method is by collecting ... -
Evaluating the use of local ecological knowledge (LEK) in determining habitat preference and occurrence of multiple large carnivores
Madsen, Emily K.; Elliot, Nicholas B.; Mjingo, Ernest E.; Masenga, Emmanuel H.; Jackson, Craig Ryan; May, Roelof Frans; Røskaft, Eivin; Broekhuis, Femke (Peer reviewed; Journal article, 2020)Understanding habitat preferences and distribution of threatened species is a cornerstone of conservation, however many of the techniques available can be resource intensive. One cost-effective method is by collecting ... -
Evaluation of the DTBird video-system at the Smøla wind-power plant. Detection capabilities for capturing near-turbine avian behaviour
May, Roelof Frans; Hamre, Øyvind; Vang, Roald; Nygård, Torgeir (NINA rapport;910, Research report, 2012)May, R., Hamre, Ø., Vang, R. & Nygård, T. 2012. Evaluation of the DTBird video-system at the Smøla wind-power plant. Detection capabilities for capturing near-turbine avian behaviour. NINA Report 910. 27 pp. Collisions ... -
Fagrapport til strategisk konsekvensutredning av fornybar energiproduksjon til havs - sjøfugl
Christensen-Dalsgaard, Signe; Follestad, Arne; Langset, Magdalene; May, Roelof Frans; Espen, Dahl; Hamre, Øyvind (NINA rapport;825, Research report, 2012)Lorentsen, S.-H. (red.), Christensen-Dalsgaard, S., Follestad, A., Langset, M., May, R., Dahl, E. L. & Hamre, Ø. 2012. Fagrapport til strategisk konsekvensutredning av fornybar energiproduksjon til havs - sjøfugl. - NINA ...