Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2016
Forfattere
Åshild Ergon F Volaire P Korhonen Perttu Virkajärvi G. Seddaiu Marit Jørgensen Gianni Bellocchi Liv Østrem D* Reheul Joost BaertSammendrag
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Sammendrag
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Sammendrag
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Sammendrag
The Action plan for hay meadows in Norway is an instrument used to manage hay meadows of high biological value. The mowing management is regulated by a specific date and we aimed to assess the suitability of this date. We compared proportions of mature plants of species associated with semi-natural grasslands at the defined mowing date in 2014 and 2015. Numbers of mature species differed between the two years, but even in the warmest year the percentage of mature plants was only 44%. In order to plan a more successful agri-environmental scheme, the cutting date should be more site-specific and based on knowledge of the former practices that originally created and maintained the biological values.
Sammendrag
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Sammendrag
The effect of abandonment of sheep grazing management in semi-natural grasslands were studied in 14 sites in Norway. Data of species and vegetation composition, functional traits and pollination resources were used as indicators for nine selected ecosystem services (ES). The majority of the ES were negatively affected by abandonment of sheep grazing management. We therefore conclude that abandonment diminishes delivery of ES.
Forfattere
Gunnhild SøgaardSammendrag
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Forfattere
Mallikarjuna Rao Kovi Stephen Byrne Liv Østrem Åshild Ergon Petter Marum Torben Asp Odd Arne RognliSammendrag
The current germplasm of forage crops like perennial ryegrass (Lolium perenne L.), timothy (Phleum pratense L.) and red clover (Trifolium pratense L.) are not adequately adapted to future climatic conditions at higher latitudes. The climate is predicted to be more unstable during winter, and winter survival needs to be improved. In this study, the aim was to detect the effects of selection/local adaptation by estimating genome-wide shifts in allelic composition of single nucleotide polymorphism markers in samples from swards of perennial ryegrass, timothy and red clover grown and managed at diverse locations in Norway. In addition separate mixtures of cultivars and breeding populations of perennial ryegrass, timothy and red clover was sown at five geographically distinct locations throughout Norway. The fields were harvested for 3 years and leaf tissues sampled randomly from about 200 plants field-1 year-1. To detect allelic shifts, genotyping by sequencing was used to generate genome-wide allele frequency fingerprints (GWAFFs). These allele frequency fingerprints were used to monitor shifts in population structure in response to location and years. Preliminary analyses demonstrate that the GWAFFs clearly distinguished samples from years/fields with good survival from those with poor survival based on scoring of winter survival in spring in perennial ryegrass and red clover.
Forfattere
Anne Kjersti BakkenSammendrag
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Sammendrag
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