Blar i Fakultet for naturvitenskap (NV) på tidsskrift "Ecology and Evolution"
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Alternative measures of trait–niche relationships: A test on dispersal traits in saproxylic beetles
(Journal article; Peer reviewed, 2023)Functional trait approaches are common in ecology, but a lack of clear hypotheses on how traits relate to environmental gradients (i.e., trait–niche relationships) often makes uncovering mechanisms difficult. Furthermore, ... -
Alternative responses to rare selection events are differentially vulnerable to changes in the frequency, scope, and intensity of environmental extremes
(Journal article; Peer reviewed, 2019)Extreme weather events are becoming more frequent, severe, and/or widespread as a consequence of anthropogenic climate change. While the economic and ecological implications of these changes have received considerable ... -
Antiparasite treatments reduce humoral immunity and impact oxidative status in raptor nestlings
(Journal article; Peer reviewed, 2013)Parasites are natural stressors that may have multiple negative effects on their host as they usurp energy and nutrients and may lead to costly immune responses that may cause oxidative stress. At early stages, animals ... -
Can variation in standard metabolic rate explain context- dependent performance of farmed Atlantic salmon offspring?
(Journal article; Peer reviewed, 2018)Escaped farmed Atlantic salmon interbreed with wild Atlantic salmon, leaving off- spring that often have lower success in nature than pure wild salmon. On top of this, presence of farmed salmon descendants can impair ... -
Causes and consequences of variation in early-life telomere length in a bird metapopulation
(Peer reviewed; Journal article, 2022)Environmental conditions during early-life development can have lasting effects shaping individual heterogeneity in fitness and fitness-related traits. The length of telomeres, the DNA sequences protecting chromosome ends, ... -
Consequences of cross-season demographic correlations for population viability
(Peer reviewed; Journal article, 2023)Demographic correlations are pervasive in wildlife populations and can represent important secondary drivers of population growth. Empirical evidence suggests that correlations are in general positive for long-lived species, ... -
Contrasting patterns of density-dependent selection at different life stages can create more than one fast–slow axis of life-history variation
(Journal article; Peer reviewed, 2020)There has been much recent research interest in the existence of a major axis of life‐history variation along a fast–slow continuum within almost all major taxonomic groups. Eco‐evolutionary models of density‐dependent ... -
A dead giveaway: Foraging vultures and other avian scavengers respond to auditory cues
(Peer reviewed; Journal article, 2020)Carrion represents an unpredictable and widely distributed primary food source for vultures and other avian scavengers. Avian scavengers in African savanna ecosystems are reported to rely exclusively on visual stimuli to ... -
Drivers and consequences of partial migration in an alpine bird species
(Peer reviewed; Journal article, 2022)1. Partial migration, where a portion of the population migrates between win-ter and summer (breeding) areas and the rest remain year- round resident, is a common phenomenon across several taxonomic groups. Several hypotheses ... -
Effects of inbreeding on fitness-related traits in a small isolated moose population
(Journal article; Peer reviewed, 2013)Inbreeding can affect fitness-related traits at different life history stages and may interact with environmental variation to induce even larger effects. We used genetic parentage assignment based on 22 microsatellite ... -
Elevated CO2 affects embryonic development and larval phototaxis in a temperate marine fish
(Journal article; Peer reviewed, 2013)As an effect of anthropogenic CO2 emissions, the chemistry of the world’s oceans is changing. Understanding how this will affect marine organisms and ecosystems are critical in predicting the impacts of this ongoing ocean ... -
Environmental niche overlap in sibling planktonic species Calanus finmarchicus and C. glacialis in Arctic fjords
(Peer reviewed; Journal article, 2022)Knowledge of environmental preferences of the key planktonic species, such as Calanus copepods in the Arctic, is crucial to understand ecosystem function and its future under climate change. Here, we assessed the environmental ... -
Evolution of population dynamics following invasion by a non-native predator
(Peer reviewed; Journal article, 2022)Invasive predatory species are frequently observed to cause evolutionary responses in prey phenotypes, which in turn may lead to evolutionary shifts in the population dynamics of prey. Research has provided a link between ... -
Evolutionary change in metabolic rate of Daphnia pulicaria following invasion by the predator Bythotrephes longimanus
(Peer reviewed; Journal article, 2022)Metabolic rate is a trait that may evolve in response to the direct and indirect effects of predator-induced mortality. Predators may indirectly alter selection by lowering prey densities and increasing resource availability ... -
Experimental icing affects growth, mortality, and flowering in a high Arctic dwarf shrub
(Peer reviewed; Journal article, 2016)Effects of climate change are predicted to be greatest at high latitudes, with more pronounced warming in winter than summer. Extreme mid-winter warm spells and heavy rain-on-snow events are already increasing in frequency ... -
Genetic variability and structure of the water vole Arvicola amphibius across four metapopulations in northern Norway
(Journal article; Peer reviewed, 2013)Water vole Arvicola amphibius populations have recently experienced severe decline in several European countries as a consequence of both reduction in suitable habitat and the establishment of the alien predator American ... -
Habitat quality is more important than matrix quality for bird communities in protected areas
(Journal article; Peer reviewed, 2018)Protected areas are meant to preserve native local communities within their boundaries, but they are not independent from their surroundings. Impoverished habitat quality in the matrix might influence the species composition ... -
Higher host plant specialization of root-associated endophytes than mycorrhizal fungi along an arctic elevational gradient
(Peer reviewed; Journal article, 2020)How community-level specialization differs among groups of organisms, and changes along environmental gradients, is fundamental to understanding the mechanisms influencing ecological communities. In this paper, we investigate ... -
IIb-RAD-sequencing coupled with random forest classification indicates regional population structuring and sex-specific differentiation in salmon lice (Lepeophtheirus salmonis)
(Peer reviewed; Journal article, 2022)The aquaculture industry has been dealing with salmon lice problems forming serious threats to salmonid farming. Several treatment approaches have been used to control the parasite. Treatment effectiveness must be optimized, ... -
Infection by a helminth parasite is associated with changes in DNA methylation in the house sparrow
(Peer reviewed; Journal article, 2022)Parasites can exert strong selective pressures on their hosts and influence the evolution of host immunity. While several studies have examined the genetic basis for parasite resistance, the role of epigenetics in the ...