Blar i NTNU Open på forfatter "Hagen, Dagmar"
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Alien plant species in Svalbard
Roalsø, Erik Roall (Master thesis, 2012)Increased introductions combined with favorable growing conditions may enhance the presence and increase the success of alien plant species in High Arctic settlements. With global warming, the presence and success of alien ... -
Assessing the effect of mitigation efforts to improve vegetation recovery inpowerline construction sites across Norway
Hagen, Dagmar; Mehlhoop, Anne Catriona; Torsæter, E.; Kyrkjeeide, Magni Olsen; Grainger, Matthew; Evju, Marianne (Journal article; Peer reviewed, 2022)Land-use related to technical infrastructure puts great pressure on nature and landscapes globally. We used a screening approach to evaluate vegetation development in 295 construction sites related to upkeeping of the ... -
Assisted recovery of disturbed arctic and alpine vegetation : an integrated approach
Hagen, Dagmar (Doctoral thesis, 2003) -
Beiteressurskartlegging i Snøhetta villreinområde. Kartlegging av beite for villrein, moskus og sau med bruk av satellittbildetolking og visuell punkttaksering fra helikopter
Hagen, Dagmar; Gaare, Eldar; Erikstad, Lars; Hoem, Stein Arild (NINA rapport;135, Research report, 2006)Beiteressurssituasjonen i Snøhetta villreinområde er kartlagt ved bruk av visuell punkttakse-ring og satellittbildetolking, og omfatter helårsbeite for villrein og moskus og sommerbeite for sau. Det studerte arealet er på ... -
Best practice—Is natural revegetation sufficient to achieve mitigation goals in road construction?
Mehlhoop, Anne Catriona; Skrindo, Astrid Brekke; Evju, Marianne; Hagen, Dagmar (Journal article; Peer reviewed, 2022)Aims: The area influenced by road construction is large, and measures to re-establish vegetation in disturbed areas are routinely carried out to reduce impacts on biodiversity. However, goals of mitigation measures are ... -
Biologisk mangfold - temarapport som grunnlag for arealplan for Longyearbyen planområde
Hagen, Dagmar; Prestø, Tommy (NINA rapport;252, Research report, 2007)Longyearbyen lokalstyre er i gang med rullering av arealplan for Longyearbyen planområde, Svalbard. I arbeidet med ny arealplan ønsker Longyearbyen lokalstyre å inkludere biologisk mangfold som ett av grunnlagstemaene, og ... -
Biologisk mangfold i Longyearbyen - integrering i lokalsamfunnsplan. Forprosjekt
Hagen, Dagmar; Lyngstad, Anders; Prestø, Tommy (Norges teknisk-naturvitenskapelige universitet, Vitenskapsmuseet, Botanisk notat, 0804-0079; 2004:4, Research report, 2004) -
Biologisk mangfold som ressurs, en trinn for trinn framgangsmåte - Rapport fra biomangfoldseminar i Finnøy kommune, Rogaland, 26. mai 2009
Thomassen, Jørn; Hagen, Dagmar; Kaltenborn, Bjørn Petter; Ladstein, Jarleiv (NINA Rapport;483, Research report, 2009)Biomangfoldkonvensjonen introduserte for 11 år siden 12 prinsipper (Malawi-prinsippene) for økosystemforvaltning av biologisk mangfold (CBD 1998). Malawi-prinsippene fokuserer på mennesker, økologi, økonomi og kunnskap, ... -
Comparing land use impacts using ecosystem quality, biogenic carbon emissions, and restoration costs in a case study of hydropower plants in Norway
Lillesund, Vilde Fluge; Hagen, Dagmar; Michelsen, Ottar; Foldvik, Anders; Barton, David Nicholas (Journal article; Peer reviewed, 2017)Purpose Habitat destruction is today the most severe threat to global biodiversity. Despite decades of efforts, there is still no proper methodology on how to assess all aspects of impacts on biodiversity from land use and ... -
Demonstrating a new framework for the comparison of environmental impacts from small- and large-scale hydropower and wind power projects
Bakken, Tor Haakon; Aase, Anne Guri; Hagen, Dagmar; Sundt, Håkon; Barton, David Nicholas; Lujala, Paivi (Journal article; Peer reviewed, 2014)Climate change and the needed reductions in the use of fossil fuels call for the development of renewable energy sources. However, renewable energy production, such as hydropower (both small- and large-scale) and wind power ... -
Ecological restoration of the previous shooting field at Hjerkinn - was it worth it?
Pettersen, Ingrid Bergly; von Hanno, Ida Ljøgodt (Master thesis, 2022)I denne masteroppgaven blir det gjort en analyse av kostnads- og nyttestrømmene av det tidligere skytefeltet på Hjerkinn. Ved å benytte ex-post kost-nytteanalyse evalueres prosjektet ut ifra hvorvidt det kan betraktes som ... -
Ecological restoration of the previous shooting field at Hjerkinn - was it worth it? An ex-post cost-benefit analysis of Hjerkinn PRO
Pettersen, Ingrid Bergly; von Hanno, Ida Ljøgodt (Master thesis, 2022)I denne masteroppgaven blir det gjort en analyse av kostnads- og nyttestrømmene av det tidligere skytefeltet på Hjerkinn. Ved å benytte ex-post kost-nytteanalyse evalueres prosjektet ut ifra hvorvidt det kan betraktes som ... -
Ecosystem restoration as a boundary object, demonstrated in a large-scale landscape restoration project in the Dovre Mountains, Norway
Aasetre, Jørund; Hagen, Dagmar; Bye, Kristine (Peer reviewed; Journal article, 2021)Coordinating and implementing ecosystem restoration projects can be challenging when the professions involved have differing perceptions of ecological restoration and implementation in practice. To overcome these barriers ... -
Evaluating mitigation measures to reduce negative impacts of infrastructure construction on vegetation and wildlife
Mehlhoop, Anne Catriona (Doctoral theses at NTNU;2022:48, Doctoral thesis, 2022)Evaluating mitigation measures to reduce negative impacts of infrastructure construction on vegetation and wildlife The human footprint is large and growing worldwide. Land-use related to technical infrastructure ... -
Experimental herbivore exclusion, shrub introduction, and carbon sequestration in alpine plant communities
Sørensen, Mia Vedel; Graae, Bente Jessen; Hagen, Dagmar; Enquist, Brian J.; Nystuen, Kristin Odden; Strimbeck, Richard (Journal article; Peer reviewed, 2018)Background Shrub cover in arctic and alpine ecosystems has increased in recent decades, and is predicted to further increase with climate change. Changes in shrub abundance may alter ecosystem carbon (C) sequestration and ... -
Herbivores reduce seedling recruitment in alpine plant communities
H. Opedal, Øystein; Nystuen, Kristin Odden; Hagen, Dagmar; Holien, Håkon; Sørensen, Mia Vedel; Lang, Simone; Lindmo, Sigrid; Strimbeck, Richard; Graae, Bente Jessen (Peer reviewed; Journal article, 2021)Through changes in climate and other environmental factors, alpine tundra ecosystems are subject to increased cover of erect shrubs, reduced predictability of rodent dynamics and changes in wild and domesticated herbivore ... -
Klimatilpasning i nasjonalparker og naturområder
Beitnes, Synnøve S.; Brendehaug, Eivind Andre; Rød, Jan Ketil; Hagen, Dagmar (Research report, 2022)I dette prosjektet har målet vært å utvikle kunnskap om hvordan kommunene kan møte konsekvensene av klimaendringer for ulike naturtyper både i og utenfor verneområder. I prosjektet har vi utviklet en GIS-modell for å ... -
Land Use and Land Use Change Impacts on Terrestrial Habitats from Hydropower Development in the LCA framework
Lillesund, Vilde Fluge (Master thesis, 2014)Anthropogenically driven biodiversity loss is one of the major challenges of modern society. The main cause of biodiversity loss is habitat fragmentation and destruction. Hydropower causes transformation and occupation of ... -
Long-term Effects of Seeding in an Alpine Environment: and a comparison of the effect of native Festuca ovina and non-native Festuca rubra on the establishment of native Betula nana
Hansen, Tor Ivar (Master thesis, 2011)As human induced disturbance in alpine ecosystems have increased, more knowledge is needed about the long-term effects of restoration efforts in such environments. There are benefits with using native species in restoration ... -
Moose in our neighborhood: Does perceived hunting risk have cascading effects on tree performance in vicinity of roads and houses?
Mehlhoop, Anne Catriona; Van Moorter, Bram; Rolandsen, Christer Moe; Hagen, Dagmar; Granhus, Aksel; Eriksen, Rune; Ringsby, Thor Harald; Solberg, Erling Johan (Peer reviewed; Journal article, 2022)Like large carnivores, hunters both kill and scare ungulates, and thus might indirectly affect plant performance through trophic cascades. In this study, we hypothesized that intensive hunting and enduring fear of humans ...