Browsing NTNU Open by Author "May, Roelof Frans"
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Modeling net land occupation of hydropower reservoirs in Norway for use in life cycle assessment
Dorber, Martin; May, Roelof Frans; Verones, Francesca (Journal article; Peer reviewed, 2018)Increasing hydropower electricity production constitutes a unique opportunity to mitigate climate change impacts. However, hydropower electricity production also impacts aquatic and terrestrial biodiversity through freshwater ... -
No evidence of handling‐induced mortality in Serengeti's African wild dog population
Jackson, Craig Ryan; Masenga, Emmanuel Hosiana; Mjingo, Ernest E.; Davies, Andrew B.; Fossøy, Frode; Fyumagwa, Robert D.; Røskaft, Eivin; May, Roelof Frans (Journal article; Peer reviewed, 2018)The disappearance of an endangered African wild dog population from Serengeti National Park (SNP) led to international debate centered around one question: were researchers to blame? The “Burrows' hypothesis” postulated ... -
Pattern and distribution of human-elephant conflicts in three conflict-prone landscapes in Myanmar
Thant, Zaw Min; May, Roelof Frans; Røskaft, Eivin (Peer reviewed; Journal article, 2021)Human-elephant conflicts (HEC) are detrimental for both humans and elephants. A better understanding of HEC enhances effective mitigation strategies and promotes the wellbeing of humans and wild elephants. This study ... -
Pre- and post-construction studies of conflicts between birds and wind turbines in coastal Norway (BirdWind) - Progress Report 2009
Bevanger, Kjetil Modolv; Berntsen, Finn Erik Harald; Clausen, Stig Morten; Dahl, Espen Lie; Flagstad, Øystein; Follestad, Arne; Halley, Duncan John; Hanssen, Frank Ole; Hoel, Pernille Lund; Johnsen, Lars; Kvaløy, Pål; May, Roelof Frans; Nygård, Torgeir; Pedersen, Hans-Christian; Reitan, Ole; Steinheim, Yngve; Vang, Roald (Nina Rapport;505, Research report, 2009)From 2007 inclusive, NINA has received economic support for research on wind power and birds from the Norwegian Research Council (NFR) through the RENERGI-programme. The project is named Pre- and post-construction studies ... -
Pre- and post-construction studies of conflicts between birds and wind turbines in coastal Norway (BirdWind). Report on findings 2007-2010
Bevanger, Kjetil Modolv; Berntsen, Finn Erik Harald; Clausen, Stig Morten; Dahl, Espen Lie; Flagstad, Øystein; Follestad, Arne; Halley, Duncan John; Hanssen, Frank Ole; Johnsen, Lars; Kvaløy, Pål; Lund-Hoel, Pernille*; May, Roelof Frans; Nygård, Torgeir; Pedersen, Hans-Christian; Reitan, Ole; Røskaft, Eivin; Steinheim, Yngve; Stokke, Bård Gunnar; Vang, Roald (NINA rapport;620, Research report, 2011)The BirdWind project (2007-2010) is now concluded. This report summarises the main findings. Several scientific papers are in the process of preparation for publication in international peer re-view journals; this report ... -
"Pre- and post-construction studies of conflicts between birds and wind turbines in coastal Norway". Progress Report 2008
Bevanger, Kjetil Modolv; Clausen, Stig Morten; Dahl, Espen Lie; Flagstad, Øystein; Follestad, Arne; Gjershaug, Jan Ove; Halley, Duncan John; Hanssen, Frank Ole; Hoel, Pernille Lund; Jacobsen, Karl-Otto; Johnsen, Lars; May, Roelof Frans; Nygård, Torgeir; Pedersen, Hans-Christian; Reitan, Ole; Steinheim, Yngve; Vang, Roald (NINA rapport;409, Research report, 2008)Nøkkelord : windpower, radar, bird, mortality, whitetailed sea eagle, GIS, ptarmigan, eagle owl, vindkraft, dødlighet, havørn, lirype, hubro -
“Pre- and post-construction studies of conflicts between birds and wind turbines in coastal Norway”. Statusrapport 1. januar 2008
Bevanger, Kjetil Modolv; Follestad, Arne; Gjershaug, Jan Ove; Halley, Duncan John; Hanssen, Frank Ole; Johnsen, Lars; May, Roelof Frans; Nygård, Torgeir; Pedersen, Hans Christian; Reitan, Ole; Steinheim, Yngve (NINA Rapport;329, Research report, 2008)NINA har siden 1999 hatt ulike forsknings- og utredningsaktiviteter knyttet til vindkraft og fugl (med spesiell fokus på havørn). Finansieringen har hovedsakelig kommet fra NVE og Statkraft, men også EBL, DN/MD, Norsk Hydro ... -
Prevailing weather conditions and dietcomposition affect chick growth and survival in the black-legged kittiwake
Christensen-Dalsgaard, Signe; May, Roelof Frans; Barrett, Robert; Langset, Magdalene; Sandercock, Brett; Lorentsen, Svein Håkon (Journal article; Peer reviewed, 2018)To identify priorities for management of seabirds during the breeding season, it is important to understand the ecological mechanisms driving chick growth and survival. In this study, we examined the effects of diet and ... -
Quantifying biodiversity impacts of hydropower electricity production within the framework of Life Cycle Assessment
Dorber, Martin (Doctoral theses at NTNU;2019:161, Doctoral thesis, 2019)The United Nations developed 17 Sustainable Development Goals (SDGs) for the transition into a more sustainable world. One of the central aspects of the SDGs is the provisioning of sustainable energy, covered by SDG 7 ... -
Quantifying net water consumption of Norwegian hydropower reservoirs and related aquatic biodiversity impacts in Life Cycle Assessment
Dorber, Martin; Mattson, Kim Rainer; Sandlund, Odd Terje; May, Roelof Frans; Verones, Francesca (Journal article; Peer reviewed, 2019)Compared to conventional energy technologies, hydropower has the lowest carbon emissions per kWh. Therefore, hydropower electricity production can contribute to combat climate change challenges. However, hydropower electricity ... -
Repowering Smøla wind-power plant - An assessment of avian conflicts
Dahl, Espen Lie; May, Roelof Frans; Nygård, Torgeir; Åström, Jens; Diserud, Ola Håvard (NINA Rapport;1135, Research report, 2015)Gjennom pågående og tidligere forskning på effekter av vindkraft på fugl i Smøla vindpark, er havørn identifisert som den mest sårbare arten. Smøla vindpark påvirker havørn både gjennom økt dødelighet som følge av kollisjoner ... -
Resource utilization by the Kori bustard in the Serengeti ecosystem
Mmassy, Emmanuel Clamsen; May, Roelof Frans; Jackson, Craig Ryan; Kleven, Oddmund; Nygård, Torgeir; Bevanger, Kjetil Modolv; Røskaft, Eivin (Journal article; Peer reviewed, 2019)This study aimed to understand the movement behaviour and utilization distributions of Kori bustards in space and time in the Serengeti ecosystem. A total of 14 individuals were tracked with the aid of GPS (Geographical ... -
Reviewing the potential for including habitat fragmentation to improve life cycle impact assessments for land use impacts on biodiversity
Kuipers, Koen; May, Roelof Frans; Graae, Bente Jessen; Verones, Francesca (Peer reviewed; Journal article, 2019)Purpose The biosphere is progressively subjected to a variety of pressures resulting from anthropogenic activities. Habitat conversion, resulting from anthropogenic land use, is considered the dominant factor driving ... -
Servicescape of the Greater Serengeti-Mara Ecosystem: Visualizing the linkages between land use, biodiversity and the delivery of wildlife-related ecosystem services
May, Roelof Frans; Jackson, Craig Ryan; Bevanger, Kjetil Modolv; Røskaft, Eivin (Journal article; Peer reviewed, 2019)Understanding how anthropogenic activities and management actions influence the delivery of ecosystem services is complicated by the interrelated nature of diverse factors. We present a Bayesian Belief Network to highlight ... -
Spatial Ecology of Wolverines in Scandinavia
May, Roelof Frans (Doktoravhandlinger ved NTNU, 1503-8181; 2007:161, Doctoral thesis, 2007) -
A Spatial Modeling Framework for Monitoring Surveys with Different Sampling Protocols with a Case Study for Bird Abundance in Mid-Scandinavia
Sicacha, Jorge; Pavòn-Jordàn, Diego; Steinsland, Ingelin; May, Roelof Frans; Stokke, Bård Gunnar; Øien, Ingar Jostein (Peer reviewed; Journal article, 2022)Quantifying the total number of individuals (abundance) of species is the basis for spatial ecology and biodiversity conservation. Abundance data are mostly collected through professional surveys as part of monitoring ... -
Spatial multi-criteria decision analysis tool suite for consensus-based siting of renewable energy structures
Hanssen, Frank Ole; May, Roelof Frans; van Dijk, Jiska Joanneke; Rød, Jan Ketil (Journal article; Peer reviewed, 2018)Expansion of renewable energy development causes concerns which traditional land-use planning may have limited capacity to address adequately. The complexity and multiplicity of scales, criteria and actors involved in ... -
Taking a trip to the shelf: Behavioral decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake
Christensen-Dalsgaard, Signe; May, Roelof Frans; Lorentsen, Svein Håkon (Journal article; Peer reviewed, 2017)For marine top predators like seabirds, the oceans represent a multitude of habitats regarding oceanographic conditions and food availability. Worldwide, these marine habitats are being altered by changes in climate and ... -
The effects of power lines on ungulates and implications for power line routing and rights-of-way management
Bartzke, Gundula; May, Roelof Frans; Bevanger, Kjetil Modolv; Stokke, Sigbjørn; Røskaft, Eivin (Journal article; Peer reviewed, 2014)Thousands of kilometres of power lines exist and more are planned. Ungulates that range over large areas are likely to encounter power lines, but a synthesis of power line effects on ungulates is lacking. Reindeer (Rangifer ... -
The impacts of human disturbances on the behaviour and population structure of impala (Aepyceros melampus) in the Serengeti ecosystem, Tanzania
Setsaas, Trine Hay; Hunninck, Louis; Jackson, Craig Ryan; May, Roelof Frans; Røskaft, Eivin (Journal article; Peer reviewed, 2018)Human activities can lead to various changes in wildlife populations’ behaviour and dynamics. Understanding specific responses to disturbances can help conservation management better protect wildlife populations to coexist ...