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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.

2023

Sammendrag

Bagadeaddji lea čállojuvvon boazoorohagaide veahkkin sin bargui sihkkarastit boazoealáhusa beroštumiid areálaplánain. Divvojuvvojit garra gáibádusat dasa mo boazoealáhus galgá vuhtiiváldojuvvot almmolaš plánemis. Plána- ja huksenláhka regulere suohkanlaš ja regionála š areálaplánema. Plána- ja huksenláhka válddaha sihke areálaplánaid sisdoalu ja gáibádusaid plánaproseassaide. Plána mieldeváikkuheapmái, gulaskuddamii ja konsultašuvdnii galgá sihkkarastit boazodoalu oassálastima plánaproseassain. Dasa lassin lea stáhtahálddašeaddjis boazodoalloeiseváldin ja Sámedikkis guovddáš rollat. Plánaeiseválddiin lea ovddasvástádus organiseret plánaproseassaid dohkálaš vuogi mielde. Lea hirbmat deaŧalaš boazoealáhussii aktiivvalaččat oassálastit plánaproseassaide. Plánaeiseválddit leat sorjavaččat dárkilis dieđuin ealáhusa eanangeavaheami birra jus galget sáhttit dan vuhtiiváldit plánain. Deaŧaleamos diehtogáldut lea orohatplánat, boazodoalu eanangeavahankárttat ja árbevirolaš máhtolašvuohta. Eanangeavaheami almmolaš reguleren dáhpáhuvvá maiddái eará láhkaortnega bokte go plána- ja huksenlága. Deaŧalaččamusat leat energiijabuvttadeami ja minerálaroggama doaibmalobit. Suodjalanplánat ja láhčin ieš guđet lágan johtalemiide sáhttet maid váikkuhit boazodollui. Dákkár plánat čuvvot buorre muddui plána- ja huksenlága gáibádusa boazodoalu vuhtiiváldima ja boazodoalu sorrama birra. Areálaplánaid ja eará stuorát areáladoaimmaid oktavuođas galget váikkuhusat mat čuhcet boazodollui čielggaduvvot. Gáibiduvvo aktiivvalaš mieldeváikkuheapmi boazodoalu bealis ja ahte čielggadeaddjis lea beassanvejolašvuohta boazodoallofágalaš máhtolašvuhtii.

Sammendrag

Bark beetle (Ips typographus) outbreaks have the potential to damage large areas of spruce-dominated forests in Scandinavia. To define forest management strategies that will minimize the risk of bark beetle attacks, we need robust models that link forest structure and composition to the risk and potential damage of bark beetle attacks. Since data on bark beetle infestation rates and corresponding damages does not exist in Norway, we implement a previously published meta-model for estimating I. typographus damage probability and intensity. Using both current and projected climatic conditions we used the model to estimate damage inflicted by I. typographus in Norwegian spruce stands. The model produces feasible results for most of Norway’s climate and forest conditions, but a revised model tailored to Norway should be fitted to a dataset that includes older stands and lower temperatures. Based on current climate and forest conditions, the model predicts that approximately nine percent of productive forests within Norway’s main spruce-growing region will experience a loss ranging from 1.7 to 11 m3/ha of spruce over a span of five years. However, climate change is predicted to exacerbate the annual damage caused by I. typographus, potentially leading to a doubling of its detrimental effects.

Til dokument

Sammendrag

Virtual fencing systems have emerged as a promising technology for managing the distribution of livestock in extensive grazing environments. This study provides comprehensive documentation of the learning process involving two conditional behavioral mechanisms and the documentation of efficient, effective, and safe animal training for virtual fence applications on nursing Brangus cows. Two hypotheses were examined: (1) animals would learn to avoid restricted zones by increasing their use of containment zones within a virtual fence polygon, and (2) animals would progressively receive fewer audio-electric cues over time and increasingly rely on auditory cues for behavioral modification. Data from GPS coordinates, behavioral metrics derived from the collar data, and cueing events were analyzed to evaluate these hypotheses. The results supported hypothesis 1, revealing that virtual fence activation significantly increased the time spent in containment zones and reduced time in restricted zones compared to when the virtual fence was deactivated. Concurrently, behavioral metrics mirrored these findings, with cows adjusting their daily travel distances, exploration area, and cumulative activity counts in response to the allocation of areas with different virtual fence configurations. Hypothesis 2 was also supported by the results, with a decrease in cueing events over time and increased reliance with animals on audio cueing to avert receiving the mild electric pulse. These outcomes underscore the rapid learning capabilities of groups of nursing cows in responding to virtual fence boundaries.

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Sammendrag

COVID-19 lockdowns in early 2020 reduced human mobility, providing an opportunity to disentangle its effectson animals from those of landscape modifications. Using GPS data, we compared movements and roadavoidance of 2300 terrestrial mammals (43 species) during the lockdowns to the same period in 2019.Individual responses were variable with no change in average movements or road avoidance behavior, likely dueto variable lockdown conditions. However, under strict lockdowns 10-day 95th percentile displacementsincreased by 73%, suggesting increased landscape permeability. Animals’1-hour 95th percentiledisplacements declined by 12% and animals were 36% closer to roads in areas of high human footprint,indicating reduced avoidance during lockdowns. Overall, lockdowns rapidly altered some spatial behaviors,highlighting variable but substantial impacts of human mobility on wildlife worldwide.