Blar i Scientific publications på forfatter "Olsen, Siri Lie"
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Climate influence on plant–pollinator interactions in the keystone species Vaccinium myrtillus
Olsen, Siri Lie; Evju, Marianne; Åström, Jens; Løkken, Jørn Olav; Dahle, Sondre; Andresen, Jonas; Eide, Nina Elisabeth (Peer reviewed; Journal article, 2022)Climate change is altering the world's ecosystems through direct effects of climate warming and precipitation changes but also indirectly through changes in biotic interactions. For instance, climate-driven changes in plant ... -
Effects of mountain biking versus hiking on trails under different environmental conditions
Evju, Marianne; Hagen, Dagmar; Jokerud, Mari; Olsen, Siri Lie; Selvaag, Sofie Kjendlie; Vistad, Odd Inge (Peer reviewed; Journal article, 2020)Recreational use of nature areas is increasing worldwide. All trail-based activities have a certain degradation effect on vegetation and soil, and conflicts between conservation values and recreation may occur. Controversy ... -
Fragmentation in calcareous grasslands: species specialization matters
Olsen, Siri Lie; Evju, Marianne; Endrestøl, Anders (Journal article; Peer reviewed, 2018)Habitat fragmentation resulting from anthropogenic land-use change may negatively affect both biodiversity and ecosystem structure and function. However, susceptibility to fragmentation varies between species and may be ... -
Near-natural forests harbor richer saproxylic beetle communities than those in intensively managed forests
Jacobsen, Rannveig Margrete; Burner, Ryan C.; Olsen, Siri Lie; Skarpaas, Olav; Sverdrup-Thygeson, Anne (Journal article, 2020)Globally, boreal forests cover 33 percent of Earth's forested area, constitute the largest terrestrial carbon source, and house an important biodiversity of forest-dependent species, many of which are saproxylic taxa reliant ... -
Pathways of introduction of alien species in Norway: analyses of an exhaustive dataset to prioritise management efforts
Sandvik, Hanno; Olsen, Siri Lie; Töpper, Joachim Paul; Hilmo, Olga (Peer reviewed; Journal article, 2022)1. Alien species constitute one of the major threats to global biodiversity. Stopping alien species at an early stage, preferably before establishment, is crucial for the effectiveness of management actions. To enable early ... -
Recent forest on abandoned agricultural land in the boreonemoral zone – Biodiversity of plants and fungi in relation to historical and present tree cover
Nordén, Björn; Olsen, Siri Lie; Haug, Solveig; Rusch, Graciela (Peer reviewed; Journal article, 2021)Recent forests may be an asset for green infrastructure and ecological restoration, but studies are needed of the variation in forest biodiversity among sites, and possible reasons for observed patterns. In boreonemoral ... -
Recovery of vegetation on former alpine roads: how long does it take?
Evju, Marianne; Hagen, Dagmar; Olsen, Siri Lie; Mehlhoop, Anne Catriona (Peer reviewed; Journal article, 2023)Alpine areas worldwide are under heavy land-use pressure and degradation. Active restoration treatments can contribute to accelerating recovery of degraded areas. However, monitoring data are needed to understand the ... -
The role of plant functional groups mediating climate impacts on carbon and biodiversity of alpine grasslands
Vandvik, Vigdis; Althuizen, Inge; Jaroszynska, Francesca; Krüger, Linn Cecilie; Lee, Hanna; Goldberg, Deborah E.; Klanderud, Kari; Olsen, Siri Lie; Telford, Richard James; Hjortland Östman, Silje Andrea; Busca, Sara; Dahle, Ingrid Johnsen; Egelkraut, Dagmar Dorothea; Geange, Sonya Rita; Gya, Ragnhild; Lynn, Joshua Scott; Meineri, Eric Pierre F; Young, Sherry; Halbritter Rechsteiner, Aud Helen (Peer reviewed; Journal article, 2022)Plant removal experiments allow assessment of the role of biotic interactions among species or functional groups in community assembly and ecosystem functioning. When replicated along climate gradients, they can assess ... -
The devil is in the detail: non-additive and context-dependent plant population responses to increasing temperature and precipitation. Plant demography in a warmer & wetter climate
Töpper, Joachim Paul; Meineri, E.; Olsen, Siri Lie; Rydgren, Knut; Skarpaas, Olav; Vandvik, Vigdis (Journal article; Peer reviewed, 2018)In climate‐change ecology, simplistic research approaches may yield unrealistically simplistic answers to often more complicated problems. In particular, the complexity of vegetation responses to global climate change begs ... -
Three decades of environmental change studies at alpine Finse, Norway: climate trends and responses across ecological scales
Roos, Ruben Erik; Birkemoe, Tone; Asplund, Johan; Halbritter Rechsteiner, Aud Helen; Olsen, Siri Lie; Vassvik, Linn; van Zuijlen, Kristel; Klanderud, Kari (Peer reviewed; Journal article, 2022)The International Tundra Experiment (ITEX) was established to understand how environmental change impacts Arctic and alpine ecosystems. The success of the ITEX-network has allowed for several important across-site ... -
Tilbakegang for flueblom Ophrys insectifera i Røsskleiva naturreservat i perioden 1984–2017
Olsen, Siri Lie; Brandrud, Tor Erik; Halvorsen, Rune (Peer reviewed; Journal article, 2019)The red-listed orchid Ophrys insectifera is in decline despite years of protection. One of the species’ most important habitats is seasonally moist calcareous pine forest. This characteristic and species-rich forest type ...