Browsing NTNU Open by Author "Kolstad, Anders Lorentzen"
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Airborne laser scanning reveals increased growth and complexity of boreal forest canopies across a network of ungulate exclosures in Norway
Kolstad, Anders Lorentzen; Snøan, Ingrid Bekken; Austrheim, Gunnar; Bollandsås, Ole Martin; Solberg, Erling Johan; Speed, James David Mervyn (Peer reviewed; Journal article, 2021)Large herbivores are often classed as ecosystem engineers, and when they become scarce or overabundant, this can alter ecosystem states and influence climate forcing potentials. This realization has spurred a call to ... -
Airborne laser scanning reveals uniform responses of forest structure to moose (Alces alces) across the boreal forest biome
Petersen, Tanja Kofod; Kolstad, Anders Lorentzen; Kouki, Jari; Leroux, Shawn J.; Potvin, Lynette R.; Tremblay, Jean-Pierre; Wallgren, Märtha; Widemo, Fredrik; Cromsigt, Joris P. G. M.; Courtois, Coline; Austrheim, Gunnar; Gosse, John; den Herder, Michael; Hermanutz, Luise; Speed, James David Mervyn (Peer reviewed; Journal article, 2023)1. The moose Alces alces is the largest herbivore in the boreal forest biome, where it can have dramatic impacts on ecosystem structure and dynamics. Despite the importance of the boreal forest biome in global carbon ... -
A calculator for local peatland volume and carbon stock to support area planners and decision makers
Kyrkjeeide, Magni Olsen; Fandrem, Marte; Kolstad, Anders Lorentzen; Bartlett, Jesamine; Cretois, Benjamin; Silvennoinen, Hanna Marika (Peer reviewed; Journal article, 2023)Conserving soil carbon is one of many actions to take in limiting global warming. However, carbon dense peatlands are still being drained or excavated. Infrastructure development is one of the major current threats to boral ... -
Cervid Exclusion Alters Boreal Forest Properties with Little Cascading Impacts on Soils
Kolstad, Anders Lorentzen; Speed, James David Mervyn; Austrheim, Gunnar; Solberg, Erling Johan; Woodin, Sarah J.; Venete, Aurel M A (Journal article; Peer reviewed, 2017)Large herbivores are capable of modifying entire ecosystems with a combination of direct (for example browsing/grazing, trampling, defecation) and indirect (for example affecting plant species composition that then alters ... -
Contrasting spatial, temporal and environmental patterns in observation and specimen based species occurrence data
Speed, James David Mervyn; Bendiksby, Mika; Finstad, Anders Gravbrøt; Hassel, Kristian; Kolstad, Anders Lorentzen; Prestø, Tommy (Journal article; Peer reviewed, 2018)Species occurrence data records the location and time of an encounter with a species, and is valuable for many aspects of ecological and evolutionary analyses. A key distinction within species occurrence data is between ... -
Contrasting spatial, temporal and environmental patterns in observation and specimen based species occurrence data
Speed, James David Mervyn; Bendiksby, Mika; Finstad, Anders Gravbrøt; Hassel, Kristian; Kolstad, Anders Lorentzen; Prestø, Tommy (Journal article; Peer reviewed, 2018)Species occurrence data records the location and time of an encounter with a species, and is valuable for many aspects of ecological and evolutionary analyses. A key distinction within species occurrence data is between ... -
Cool as a moose: How can browsing counteract climate warming effects across boreal forest ecosystems?
Vuorinen, Katariina; Kolstad, Anders Lorentzen; De Vriendt, Laurent; Austrheim, Gunnar; Jean-Pierre, Tremblay; Solberg, Erling Johan; Speed, James David Mervyn (Peer reviewed; Journal article, 2020)Herbivory has potential to modify vegetation responses to climatic changes. However, climate and herbivory also affect each other, and rarely work in isolation from other ecological factors, such as plant–plant competition. ... -
Increasing Cervidae populations have variable impacts on habitat suitability for threatened forest plant and lichen species
Speed, James David Mervyn; Austrheim, Gunnar; Bendiksby, Mika; Kolstad, Anders Lorentzen; Vuorinen, Katariina (Peer reviewed; Journal article, 2020)Large herbivores play a key role in temperate and boreal forest ecosystems. Cervidae (deer) population densities and community structure have undergone drastic changes in many parts of the world over the past decades, often ... -
Location of studies and evidence of effects of herbivory on Arctic vegetation: a systematic map
Soininen, Eeva M; Barrio, Isabel C.; Bjørkås, Ragnhild; Björnsdóttir, Katrin; Ehrich, Dorothee; Hopping, Kelly A.; Kaarlejarvi, E.; Kolstad, Anders Lorentzen; Abdulmanova, Svetlana; Björk, Robert G.; Bueno, C. Guillermo; Eischeid, Isabell; Higgens, Rebecca Finger; Forbey, Jennifer; Gignac, Charles; Gilg, Olivier; Herder, Michael den; Holm, H. S.; Hwang, Bernice; Jepsen, Jane Uhd; Kamenova, Stefaniya; Kater, Ilona; Koltz, Amanda; Kristensen, Jeppe A.; Little, Chelsea J.; Macek, Petr; Mathisen, Karen Marie; Metcalfe, Daniel B.; Mosbacher, Jesper Bruun; Mörsdorf, M.; Park, Taejin; Propster, Jeffrey; Roberts, Aradhana J; Serrano, E; Spiegel, Marcus P.; Tamayo, Mariana; Tuomi, Maria Wilhelmina; Verma, Megha; Vuorinen, Katariina Elsa Maria; Väisänen, Maria; Wal, Rene van der; Wilcots, Megan; Yoccoz, Nigel; Speed, James David Mervyn (Peer reviewed; Journal article, 2021)Herbivores modify the structure and function of tundra ecosystems. Understanding their impacts is necessary to assess the responses of these ecosystems to ongoing environmental changes. However, the effects of herbivores ... -
Long-term changes in northern large-herbivore communities reveal differential rewilding rates in space and time
Speed, James David Mervyn; Austrheim, Gunnar; Kolstad, Anders Lorentzen; Solberg, Erling Johan (Journal article; Peer reviewed, 2019)Herbivores have important impacts on ecological and ecosystem dynamics. Population density and species composition are both important determinants of these impacts. Large herbivore communities are shifting in many parts ... -
Moose browsing effects on boreal production forests – implications for ecosystems and human society
Kolstad, Anders Lorentzen (Doctoral theses at NTNU;2019:286, Doctoral thesis, 2019)Sammendrag: Den viktige elgen Utmarkbeite er trolig den mest utbredte arealbruken i Norge, som i verden forøvrig. Etter at mengden beitende husdyr begynte å ned på midten av forrige århundre har ville hjortedyr tatt ... -
Moose effects on soil temperatures, tree canopies, and understory vegetation: a path analysis
Kolstad, Anders Lorentzen; Austrheim, Gunnar; Graae, Bente Jessen; Solberg, Erling Johan; Strimbeck, Richard; Speed, James David Mervyn (Journal article; Peer reviewed, 2018)Large vertebrate herbivores are ubiquitous and increasingly numerous in boreal forests where they are known to influence ecosystems in many ways. However, separating the direct effects of herbivores from their indirect ... -
Naturtypekartlegging i fire områder i Trøndelag med vekt på de utvalgte naturtypene slåttemark og slåttemyr
Øien, Dag-Inge; Lyngstad, Anders; Kolstad, Anders Lorentzen (NTNU Vitenskapsmuseet naturhistorisk notat;, Research report, 2020) -
Pervasive moose browsing in boreal forests alters successional trajectories by severely suppressing keystone species
Kolstad, Anders Lorentzen; Austrheim, Gunnar; Solberg, Erling Johan; De Vriendt, Laurent; Speed, James David Mervyn (Journal article; Peer reviewed, 2018)Large herbivores can shape young forest stands and determine the successional trajectory of forested ecosystems by selectively browsing palatable species at the sapling stage. Moose (Alces alces) is the dominant vertebrate ... -
Stomping in silence: Conceptualizing trampling effects on soils in polar tundra
Tuomi, Maria; Väisänen, Maria; Ylänne, H; Brearley, Francis Q.; Barrio, Isabel C.; Bråthen, Kari Anne; Eischeid, Isabell; Forbes, Bruce C.; Jónsdóttir, Ingibjörg; Kolstad, Anders Lorentzen; Macek, Petr; Petit Bon, Matteo; Speed, James David Mervyn; Stark, Sari; Svavarsdóttir, Kristin; Thorsson, Johann; Bueno, C. Guillermo (Peer reviewed; Journal article, 2020)Ungulate trampling modifies soils and interlinked ecosystem functions across biomes. Until today, most research has focused on temperate ecosystems and mineral soils while trampling effects on cold and organic matter‐rich ... -
Successional dynamics in boreal forests: What is the impact of moose browsing, and which pathways are preferred by landowners?
Berger, Victoria (Master thesis, 2018)Norwegian boreal forests are usually managed for timber production, but also provide other ecosystem services, including game meat, income from hunting licenses, and recreational opportunities. Forest landowners values ... -
Uttak av fremmede treslag i verneområder. Etablering av overvåking
Kolstad, Anders Lorentzen; Lyngstad, Anders; Øien, Dag-Inge (NTNU Vitenskapsmuseet naturhistorisk rapport;, Research report, 2020)Det er et uttalt mål i Norge å hindre spredning og etablering av fremmede arter siden dette blir sett på som en av de største truslene mot det biologiske mangfoldet. Spesielt gjelder dette for verneområder hvor viktige ...