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Browsing Landbúnaðarháskóli Íslands by Journal title "Icelandic Agricultural Sciences"
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Browsing Landbúnaðarháskóli Íslands by Journal title "Icelandic Agricultural Sciences"
Now showing items 1-20 of 23
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(Agricultural University of Iceland, 2019)The only native tree species in Iceland forming woodland is the mountain birch. Since human settlement in the 9th century AD, natural birch woodlands have decreased from around 28% to 1.5% of the terrestrial area. In this paper we estimated and compared ... -
(Agricultural University of Iceland, 2016)Degradation of ecosystems and introductions of invasive species pose a threat to global biodiversity. Ecosystem restoration and revegetation actions are important for amending habitat loss and for the protection of species of plants and animals. Iceland ...
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(Agricultural University of Iceland, 2017)Bumblebees (Bombus spp.) are pollinators of especially high conservation interest. They have behaviours (pollen-gathering, buzz pollination), morphological structures (branched body hairs well-adapted for retaining pollen), and endothermic capabilities, ...
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(Agricultural University of Iceland, 2017)An experiment with three perennial energy crops – common mugwort (Artemisia vulgaris L.), cup plant (Silphium perfoliatum L.) and virginia mallow (Sida hermaphrodita Rusby) has been carried out in Lithuania (55°43′N, 21°28′E) in order to evaluate the ...
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(Agricultural University of Iceland, 2019)Predicted genetic progress in production traits was compared using three different models for genetic evaluation of Icelandic dairy cows. The models were: a random regression (RR) test-day model, model using lactation yields until day 305 from calving ...
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(Agricultural University of Iceland, 2016)The effect of harbour seal predation on salmonids has been frequently debated, although interactions between these species have never been thoroughly investigated in Icelandic waters prior to this study. We investigated the diet of harbour seals in a ...
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(Agricultural University of Iceland, 2020)Thirty-seven dairy cows of the Icelandic breed were used in a change-over design experiment. The aim was to analyse the effects of moderate addition of high-palmitic acid (C16:0) fat supplement to a grass silage-based diet. There were three experimental ...
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(Agricultural University of Iceland, 2018)Geothermal areas can be local sources of greenhouse gases, both directly from the geothermal system or because of soil warming effects on biological sources. In this study we repeated field measurements methane (CH4) and nitrous oxide (N2O) fluxes along ...
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(Agricultural University of Iceland, 2019)The incidence of horticultural pests in combination with increased frequency of extreme weather events, like summer drought, can compromise crop production in Nordic agricultural systems during the already short summer growing season. In particular, ...
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(Landbúnaðarháskóli Íslands, 2015-02)Past volcanic eruptions in Iceland have sometimes led to long-distance distribution of fine volcanic tephra (volcanic ash). Evidence for volcanic ash from, for example, the ca. 4250 BP eruption in Hekla (H4) and the 1783-1784 AD Laki eruption in southern ...
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(Agricultural University of Iceland, 2016-06)The Icelandic goat is an indigenous breed, descendant of goats brought to Iceland by Nordic and Celtic settlers in the 9th century (Adalsteinsson 1981). The population is estimated to have been below 1000 individuals for centuries and critically ...
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(Agricultural University of Iceland, 2019)A total of 480,495 test-day yield records of 33,052 cows were used to estimate the genetic parameters for daily milk yield (MY), fat yield (FY), protein yield (PY) and somatic cell score (SCS) of Icelandic dairy cows in the first three lactations with ...
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(Agricultural University of Iceland, 2016)This article describes how natural geothermal soil temperature gradients in Iceland have been used to study terrestrial ecosystem responses to soil warming. The experimental approach was evaluated at three study sites in southern Iceland; one grassland ...
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(Agricultural University of Iceland, 2017)In this paper, we report the first discovery of Arabidopsis thaliana in Iceland. In May 2015, the plants were located growing on warm geothermal soil around the hot spring Deildartunguhver in Reykholt, West Iceland. Flower buds and leaves were collected ...
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(Agricultural University of Iceland, 2018)Maedi-visna virus (MVV) is a lentivirus of sheep causing inflammation in many organs, primarily the lungs and CNS. HIV and SIV also belong to the lentivirus genus of retroviruses. MVV and HIV have many features in common, including genome organization, ...
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(Agricultural University of Iceland, 2017)Barley is of great importance in modern agriculture and is currently the fourth most important cereal after wheat, maize, and rice. It is well adapted to a range of climatic and day-length conditions, with a distribution from Ethiopia to northern ...
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(Agricultural University of Iceland, 2018)Importing dogs into Iceland was prohibited or restricted from 1909 until 1989, when the ban was lifted and importing dogs and cats permitted, with the proviso of an enforced period of quarantine and the requirement of specific medical treatments and ...
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(Agricultural University of Iceland, 2017-09)Pollinator communities have an integral role in facilitating sexual reproduction within and between flowering plant populations. Declines in abundance and diversity of pollinating insects are widely documented throughout Europe, primarily the result ...
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(Agricultural University of Iceland, 2018)Afforestation in southwest Iceland is hindered by eroded, infertile soils and salt deposition from strong oceanic winds. A trial plot of 25 provenances of native downy birch collected throughout Iceland was established in 1998 near Keflavik International ...
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(Agricultural University of Iceland, 2018)In Iceland, mountain birch dominates indigenous woodlands and scrub communities. For use in inventories of the natural birch population, we derived single parameter aboveground biomass functions from a stratified random sample encompassing the entire ...
Now showing items 1-20 of 23