Browsing NTNU Open by Author "Graae, Bente Jessen"
Now showing items 21-40 of 52
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Hiking trails shift plant species' realized climatic niches and locally increase species richness
Wedegärtner, Ronja Elisabeth Magdalene; Lembrechts, Jonas J.; van der Wal, René; Barros, Agustina; Chauvin, Aurélie; Janssens, Ilias; Graae, Bente Jessen (Peer reviewed; Journal article, 2022)Aim The presence and use of trails may change plant species' realized climatic niches via modified abiotic and biotic conditions including propagule transport, allowing competition-pressed alpine species to expand their ... -
How do lichens, willow shrubs, meadow, and heath plant communities affect microclimate?
Naranjo Orrico, Domenica Janeth (Master thesis, 2022)Increases in earth's surface temperature because of climate change in the last decades have already shown consequences in different ecosystems and in different taxonomic groups. Alpine environments are among the most ... -
Impact of an invasive alien plant on litter decomposition along a latitudinal gradient
Helsen, Kenny; Smith, Stuart; Brunet, J; Cousins, Sara A.O.; De Frenne, Pieter; Kimberley, Adam; Kolb, Annette; Lenoir, Jonathan; Ma, Shiyu; Michaelis, Jana; Pule, Jan; Verheyen, Kris; Speed, James David Mervyn; Graae, Bente Jessen (Journal article; Peer reviewed, 2018)Invasive alien plant effects on ecosystem functions are often difficult to predict across environmental gradients due to the context-dependent interactions between the invader and the recipient communities. Adopting a ... -
Impact of climate change on alpine vegetation of mountain summits in Norway
Vanneste, Thomas; Michelsen, Ottar; Graae, Bente Jessen; Kyrkjeeide, Magni Olsen; Holien, Håkon; Hassel, Kristian; Lindmo, Sigrid; Kapás, Rozália Erzsebet; De Frenne, Pieter (Journal article; Peer reviewed, 2017)Climate change is affecting the composition and functioning of ecosystems across the globe. Mountain ecosystems are particularly sensitive to climate warming since their biota is generally limited by low temperatures. ... -
IMPACT OF FIRE HISTORY ON CARBON STORAGE AND VEGETATION STRUCTURE IN THE SAVANNA ECOSYSTEM OF MOLE NATIONAL PARK IN THE NORTHERN REGION OF GHANA
Awuah, Joana (Master thesis, 2017)As a management tool to balance the existence of trees and herbaceous vegetation, many protected areas in savannas are undergoing a trend of burning. Management to reduce late dry season fires and focus on low intensity ... -
Impacts of an invasive plant on primary production: Testing a functional trait-based framework with a greenhouse experiment
Helsen, Kenny; Kapás, Rozália Erzsebet; Rakvaag, Grete; Speed, James David Mervyn; Graae, Bente Jessen (Journal article; Peer reviewed, 2018)Questions Predicting when invasive species will affect ecosystem functioning remains problematic, with strong contingency upon both the invasive species and the recipient community's identities. Adopting a functional ... -
Invasive Species: Genetics, Characteristics and Trait Variation Along a Latitudinal Gradient
Acharya, Kamal Prasad (Doktoravhandlinger ved NTNU, 1503-8181; 2014:276, Doctoral thesis, 2014)Globalization during the second half of the 20th century has accelerated the introduction and the spread of non-native species. Introduced species is considered the second largest threat to biodiversity after habitat ... -
Lichens facilitate seedling recruitment in alpine heath
Nystuen, Kristin Odden; Sundsdal, Kristine; Opedal, Øystein Hjorthol; Holien, Håkon; Strimbeck, Richard; Graae, Bente Jessen (Peer reviewed; Journal article, 2019)Questions How do mat thickness, physical structure and allelopathic properties of terricolous mat‐forming lichens affect recruitment of vascular plants in dwarf‐shrub and lichen heath vegetation? Location The mountains of ... -
Litter type and termites regulate root decomposition across contrasting savanna land-uses
Smith, Stuart; Speed, James David Mervyn; Bukombe, John; Hassan, Shombe Ntaraluka; Lyamuya, Richard Daniel; Mtweve, Philipo Jacob; Sundsdal, Anders; Graae, Bente Jessen (Journal article; Peer reviewed, 2018)Decomposition is a vital ecosystem process, increasingly modified by human activity. Theoretical frameworks and empirical studies that aim to understand the interplay between human land-use, macro-fauna and decomposition ... -
Low genetic diversity despite multiple introductions of the invasive plant species Impatiens glandulifera in Europe
Hagenblad, Jenny; Hülskötter, Jennifer; Acharya, Kamal Prasad; Brunet, Jörg; Chabrerie, Olivier; Cousins, Sara A.O.; Dar, Pervaiz A; Diekmann, Martin; De Frenne, Pieter; Hermy, Martin; Jamoneau, Aurelien; Kolb, Anette; Lemke, Isgard; Plue, Jan; Reshi, Zafar A; Graae, Bente Jessen (Journal article; Peer reviewed, 2015)Background Invasive species can be a major threat to native biodiversity and the number of invasive plant species is increasing across the globe. Population genetic studies of invasive species can provide key insights ... -
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 ... -
No genetic erosion after five generations for Impatiens glandulifera populations across the invaded range in Europe
Helsen, Kenny; Hagenblad, Jenny; Acharya, Kamal Prasad; Brunet, Jörg; Cousins, Sara A. O.; Decocq, Guillaume; De Frenne, Pieter; Kimberley, Adam; Kolb, Anette; Michaelis, Jana; Plue, Jan; Verheyen, Kris; Speed, James D M; Graae, Bente Jessen (Journal article; Peer reviewed, 2019)Background The observation that many alien species become invasive despite low genetic diversity has long been considered the ‘genetic paradox’ in invasion biology. This paradox is often resolved through the temporal ... -
On the Interaction between Rodents and Alpine Plant Communities
Nystuen, Kristin Odden (Master thesis, 2012)Rodents with cyclic population dynamics are important herbivores in alpine areas with major effects on vegetation composition, biomass and diversity. Many places in Fennoscandia the population cycles in lemmings and voles ... -
Pre-adaptation or genetic shift after introduction in the invasive species Impatiens glandulifera?
Elst, Evelyne M.; Acharya, Kamal Prasad; Dar, Pervaiz A.; Reshi, Zafar A.; Tufto, Jarle; Nijs, Ivan; Graae, Bente Jessen (Journal article, 2016)Invasive exotic plants often grow fast, reproduce rapidly and display considerable phenotypic plasticity in their invasive range, which may be essential characteristics for successful invasion. However, it remains unclear ... -
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 ... -
Rodent population dynamics affect seedling recruitment in alpine habitats
Nystuen, Kristin O; Evju, Marianne; Rusch, Graciela; Graae, Bente Jessen; Eide, Nina Elisabeth (Journal article; Peer reviewed, 2014)Questions How do rodents with cyclic population dynamics affect seedling recruitment in alpine habitats? Does disturbance from rodents have larger implications on seedling recruitment in some plant communities than in ... -
Savannah trees buffer herbaceous plant biomass against wild and domestic herbivores
Smith, Stuart; Graae, Bente Jessen; Bukombe, John; Hassan, Shombe N.; Lyamuya, Richard Daniel; Mtweve, Philipo Jacob; Treydte, Anna C; Speed, James David Mervyn (Journal article; Peer reviewed, 2019)Questions Given the growing abundance and dominance of domestic herbivores in savannah ecosystems, can trees maintain plant herbaceous standing biomass under increasing herbivore pressure? Are there differences in the ... -
Shedding Light on Bidstrup's Changing Plant Community: the connection between understorey vegetation, light and former land-use from 1998 to 2022
Heien, Hanne Alise (Master thesis, 2023)Moderne skoger er ofte plassert på områder som er sterkt påvirket av menneskelig inngrep, og de fleste europeiske skoger har tidligere vært brukt som jordbruksområder eller slettelandskap som beitemark. I Danmark er de ... -
SoilTemp: A global database of near-surface temperature
Lembrechts, Jonas J.; Smith, Stuart; Halbritter, Aud Helen; Graae, Bente Jessen; Sørensen, Mia Vedel; Speed, James David Mervyn; Wedegärtner, Ronja Elisabeth Magdalene (Peer reviewed; Journal article, 2020)Current analyses and predictions of spatially explicit patterns and processes in ecology most often rely on climate data interpolated from standardized weather stations. This interpolated climate data represents long-term ... -
Spatio-Temporal Changes in Wildlife Habitat Quality in the Greater Serengeti Ecosystem
Kija, Hamza; Ogutu, Joseph O; Mangewa, Lazaro J; Bukombe, John; Verones, Francesca; Graae, Bente Jessen; Kideghesho, Jafari Ramadhani; Said, Mohammed Yahya; Nzunda, Emmanuel F. (Peer reviewed; Journal article, 2020)Understanding habitat quality and its dynamics is imperative for maintaining healthy wildlife populations and ecosystems. We mapped and evaluated changes in habitat quality (1975–2015) in the Greater Serengeti Ecosystem ...