Browsing Department of Biological Sciences by Title
Now showing items 932-951 of 2219
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Geographical and management related factors affecting lambs of outwintered sheep along the west coast of Norway. A baseline study in the research project feral sheep in coastal heats - developing a sustainable local industry in vulnerable cultural landscapes
(Master thesis, 2008)The Ancient Norse breed of outwintered sheep (ANBOS/Feral sheep) are the traditional sheep of Norwegian coastal heathlands, an open semi-natural landscape now threatened by regrowth due to cessation of management. One of ... -
Geomicrobial characterisation of a 60 m long permafrost core, taken over a future CO2 storage site at Svalbard
(Master thesis, 2014-09-11)In connection with a planned CO2 storage pilot project in the Arctic, a 60 m long permafrost core was drilled in Adventdalen, Svalbard, representing the poorly studied deep permafrost ecosystems. The on-shore drilling was ... -
Geomorphological processes shape plant community traits in the Arctic
(Journal article; Peer reviewed, 2022)Aim Geomorphological processes profoundly affect plant establishment and distributions, but their influence on functional traits is insufficiently understood. Here, we unveil trait–geomorphology relationships in Arctic ... -
Germination and seedling growth of Calluna vulgaris is sensitive to regional climate, heathland succession, and drought
(Journal article; Peer reviewed, 2023)The coastal heathlands of Northwest Europe are highly valued cultural landscapes, that are critically endangered due to land use and climatic changes, such as increased frequency and severity of drought events. Our study ... -
Germination ecology of the clonal grassland herb Knautia arvensis: Regeneration strategy and geographic variation.
(Peer reviewed; Journal article, 2003)We investigated germination responses and seed recruitment in the clonal grassland herb Knautia arvensis (Dipsacaceae) throughout the species’ distributional range in Norway. Four predicted relationships between germination ... -
Giant sponge grounds of Central Arctic seamounts are associated with extinct seep life
(Journal article; Peer reviewed, 2022)The Central Arctic Ocean is one of the most oligotrophic oceans on Earth because of its sea-ice cover and short productive season. Nonetheless, across the peaks of extinct volcanic seamounts of the Langseth Ridge (87°N, ... -
Gill and labial palp areas in blue mussels (Mytilus edulis) at sites with different food quantity
(Master thesis, 2013-06-01)Suspension feeding bivalves captures and process particles with their gills and labial palps. These foraging apparatus are known to be flexible in size related to seston quantity and quality. It is important to understand ... -
The gill parasite Paramoeba perurans compromises aerobic scope, swimming capacity and ion balance in Atlantic salmon
(Peer reviewed; Journal article, 2017-01)The parasitic amoeba Paramoeba perurans is an aetiological agent of amoebic gill disease (AGD), a serious problem in seawater salmonid aquaculture globally. Other finfish species are also infected and infection events may ... -
Giving eyes to pelagic trawls: Acoustic and optical techniques measure behaviour, species, and sizes of fish in situ
(Doctoral thesis, 2013-11-26)Trawling, towing a cone-shaped net behind a moving boat, is a widespread fishing method both in commercial fisheries and to collect fish for scientific investigations. It combines filtering effect with herding behaviour ... -
Glacial microbiota are hydrologically connected and temporally variable
(Journal article; Peer reviewed, 2020)Glaciers are melting rapidly. The concurrent export of microbial assemblages alongside glacial meltwater is expected to impact the ecology of adjoining ecosystems. Currently, the source of exported assemblages is poorly ... -
Glacier retreat alters downstream fjord ecosystem structure and function in Greenland
(Journal article; Peer reviewed, 2023)The melting of the Greenland Ice Sheet is accelerating, with glaciers shifting from marine to land termination and potential consequences for fjord ecosystems downstream. Monthly samples in 2016 in two fjords in southwest ... -
Glass sponge grounds on the Scotian Shelf and their associated biodiversity
(Peer reviewed; Journal article, 2019)Emerald Basin on the Scotian Shelf off Nova Scotia, Canada, is home to a globally unique population of the glass sponge Vazella pourtalesi. Through the analysis of both in situ photographs and trawl catch data from annual ... -
A glimpse of the prokaryotic diversity of the Large Aral Sea reveals novel extremophilic bacterial and archaeal groups
(Peer reviewed; Journal article, 2019)During the last five decades, the Aral Sea has gradually changed from a saline water body to a hypersaline lake. Microbial community inhabiting the Aral Sea has been through a succession and continuous adaptation during ... -
Global acceleration in rates of vegetation change over the past 18,000 years
(Journal article; Peer reviewed, 2021)Global vegetation over the past 18,000 years has been transformed first by the climate changes that accompanied the last deglaciation and again by increasing human pressures; however, the magnitude and patterns of rates ... -
A global biogeographic classification of the mesopelagic zone
(Peer reviewed; Journal article, 2017-08)We have developed a global biogeographic classification of the mesopelagic zone to reflect the regional scales over which the ocean interior varies in terms of biodiversity and function. An integrated approach was necessary, ... -
Global Biogeographic Distribution Patterns of Thermoacidophilic Verrucomicrobia Methanotrophs Suggest Allopatric Evolution
(Peer reviewed; Journal article, 2019)Thermoacidophilic methane-oxidizing Verrucomicrobia of the candidate genus Methylacidiphilum represent a bacterial taxon adapted to highly acidic (pH 1–4) and moderate temperature (∼65∘C) methane-containing geothermal ... -
Global endemics-area relationships of vascular plants
(Peer reviewed; Journal article, 2019)Endemics–Area Relationships (EARs) are fundamental in theoretical and applied biogeography for understanding distribution patterns and promoting biodiversity conservation. However, calculating EARs for vascular plant species ... -
Global fading of the temperature–growth coupling at alpine and polar treelines
(Journal article; Peer reviewed, 2021)Climate warming is expected to positively alter upward and poleward treelines which are controlled by low temperature and a short growing season. Despite the importance of treelines as a bioassay of climate change, a global ... -
Global food insecurity and famine from reduced crop, marine fishery and livestock production due to climate disruption from nuclear war soot injection
(Journal article; Peer reviewed, 2022)Atmospheric soot loadings from nuclear weapon detonation would cause disruptions to the Earth’s climate, limiting terrestrial and aquatic food production. Here, we use climate, crop and fishery models to estimate the impacts ... -
Global maps of soil temperature
(Journal article; Peer reviewed, 2021)Research in global change ecology relies heavily on global climatic grids derived from estimates of air temperature in open areas at around 2 m above the ground. These climatic grids do not reflect conditions below vegetation ...