Browsing NTNU Open by Journals "Ecology and Evolution"
Now showing items 41-60 of 63
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Ocean acidification ameliorates harmful effects of warming in primary consumer
(Journal article; Peer reviewed, 2018)Climate change-induced warming and ocean acidification are considered two imminent threats to marine biodiversity and current ecosystem structures. Here, we have for the first time examined an animal's response to a complete ... -
On estimation and identifiability issues of sex-linked inheritance with a case study of pigmentation in Swiss barn owl (Tyto alba)
(Journal article; Peer reviewed, 2014)Genetic evaluation using animal models or pedigree-based models generally assume only autosomal inheritance. Bayesian animal models provide a flexible framework for genetic evaluation, and we show how the model readily can ... -
Phylogeography of the prehensile tailed skink Corucia zebrata on the Solomon Archipelago
(Journal article; Peer reviewed, 2012)The biogeography of islands is often strongly influenced by prior geological events. Corucia zebrata (Squamata: Scincidae) is endemic to the geologically complex Solomon Archipelago in Northern Melanesia. We examined the ... -
Quantitative and qualitative consequences of reduced pollen loads in a mixed-mating plant
(Journal article; Peer reviewed, 2019)Greater pollination intensity can enhance maternal plant fitness by increasing seed set and seed quality as a result of more intense pollen competition or enhanced genetic sampling. We tested experimentally these effects ... -
Quantitative and qualitative consequences of reduced pollen loads in a mixed-mating plant
(Journal article; Peer reviewed, 2019)Greater pollination intensity can enhance maternal plant fitness by increasing seed set and seed quality as a result of more intense pollen competition or enhanced genetic sampling. We tested experimentally these effects ... -
Rainfall seasonality predicts the germination behaviour of a tropical dry-forest vine
(Journal article; Peer reviewed, 2019)Seed dormancy is considered to be an adaptive strategy in seasonal and/or unpredictable environments because it prevents germination during climatically favorable periods that are too short for seedling establishment. ... -
Rainfall seasonality predicts the germination behaviour of a tropical dry-forest vine
(Journal article; Peer reviewed, 2019)Seed dormancy is considered to be an adaptive strategy in seasonal and/or unpredictable environments because it prevents germination during climatically favorable periods that are too short for seedling establishment. ... -
Reduced sexual size dimorphism in a pipefish population where males do not prefer larger females
(Journal article; Peer reviewed, 2019)Within a species' distribution, populations are often exposed to diverse environ‐ments and may thus experience different sources of both natural and sexual selec‐tion. These differences are likely to impact the balance ... -
A regionally coherent ecological fingerprint of climate change, evidenced from natural history collections
(Peer reviewed; Journal article, 2022)Climate change has dramatic impacts on ecological systems, affecting a range of ecological factors including phenology, species abundance, diversity, and distribution. The breadth of climate change impacts on ecological ... -
Repeatable individual variation in migration timing in two anadromous salmonids and ecological consequences
(Journal article; Peer reviewed, 2020)Consistent individual differences in behavior have been demonstrated for many animals, but there are few studies of consequences of such repeated behavior in the wild. We tested consistency in migration timing to and from ... -
The role of seasonality in shaping the interactions of honeybees with other taxa
(Peer reviewed; Journal article, 2023)The Eltonian niche of a species is defined as its set of interactions with other taxa. How this set varies with biotic, abiotic and human influences is a core question of modern ecology. In seasonal environments, the ... -
Scavenger community structure along an environmental gradient from boreal forest to alpine tundra in Scandinavia
(Journal article; Peer reviewed, 2020)Scavengers can have strong impacts on food webs, and awareness of their role in ecosystems has increased during the last decades. In our study, we used baited camera traps to quantify the structure of the winter scavenger ... -
Short stories from Sphagnum of rare species, taxonomy, and speciation
(Peer reviewed; Journal article, 2023)Conserving species and their genetic variation are a global priority to safeguard evolu-tionary potential in a rapidly changing world. Species are fundamental units in research and nature management, but taxonomic work is ... -
Spatial and temporal genetic structure of a river-resident Atlantic salmon (Salmo salar) after millennia of isolation
(Journal article; Peer reviewed, 2014)The river-resident Salmo salar (“småblank”) has been isolated from other Atlantic salmon populations for 9,500 years in upper River Namsen, Norway. This is the only European Atlantic salmon population accomplishing its ... -
Spatiotemporal monitoring of the rare northern dragonhead (Dracocephalum ruyschiana, Lamiaceae) — SNP genotyping and environmental niche modeling herbarium specimens
(Journal article; Peer reviewed, 2022)The species we have studied the spatiotemporal genetic change in the northern dragonhead, a plant species that has experienced a drastic population decline and habitat loss in Europe. We have added a temporal perspective ... -
Survival and cause-specific mortality of harvested willow ptarmigan (Lagopus lagopus) in central Norway
(Journal article; Peer reviewed, 2020)Survival is a key demographic component that often varies as a result of human activities such as recreational harvest. Detailed understanding of seasonal variation in mortality patterns and the role of various risk factors ... -
Taking a trip to the shelf: Behavioral decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake
(Journal article; Peer reviewed, 2017)For marine top predators like seabirds, the oceans represent a multitude of habitats regarding oceanographic conditions and food availability. Worldwide, these marine habitats are being altered by changes in climate and ... -
The effect of purging on sexually selected traits through antagonistic pleiotropy with survival
(Journal article; Peer reviewed, 2012)Sexually selected traits are expected to evolve to a point where their positive effect on reproductive success is counterbalanced by their negative effect on survival. At the genetic level, such a trade-off implies ... -
The population genomic basis of geographic differentiation in North American common ragweed (Ambrosia artemisiifolia L.)
(Journal article; Peer reviewed, 2016)Common ragweed (Ambrosia artemisiifolia L.) is an invasive, wind‐pollinated plant nearly ubiquitous in disturbed sites in its eastern North American native range and present across growing portions of Europe, Africa, Asia, ... -
The stress hormone corticosterone in a marine top predatorreflects short-term changes in food availability
(Journal article; Peer reviewed, 2015)In many seabird studies, single annual proxies of prey abundance have been used to explain variability in breeding performance, but much more important is probably the timing of prey availability relative to the breeding ...