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.
2024
Forfattere
Behailu Etana Disasa Anagaw Meshesha Atickem Peter Fashing Diress Tsegaye Alemu Matthias De Beenhouwer Luc Lens Afework Bekele Nils Christian StensethSammendrag
Understanding the effects of variation in resource availability and habitat disturbance on the ecology of mammals is vital for successful conservation management. In this study, we examined how human disturbances, resource availability and elevation gradients influence mammal assemblages in both managed coffee forest and natural forest of the Belete-Gera National Forest Priority Area, southwestern Ethiopia. We surveyed mammals using motion-detecting infrared camera traps in 90 locations for a total of 4142 camera days. We measured distance from main roads and settlements as disturbance factors, and distance from water sources, key grazing sites, and forest edges and woody plant diversity as resource variables. We assessed the mammal assemblages in coffee forest and natural forests using generalized linear models. Further, we used linear modelling to compare the relationships of mammal detection rates by feeding guilds and body size to resource variables. In total, we recorded 8815 videos identifying 23 different mammal species. The mammal assemblages in coffee forests were negatively associated with increasing distances from key grazing sites, water sources, and elevation. In contrast, the association with increasing distance from the road and woody plant diversity was positive. In addition, herbivores and large (25–200 kg) and very large (≥200 kg) mammals, were all negatively associated with increasing distance from the natural forest edges. With the conversion of natural forest to coffee forest and the intensification of coffee forest management, sustainable management of key grazing sites, water sources, and diverse woody plant species will be essential to the conservation of mammals. In addition, to ensure mammal conservation, adjacent natural forests around coffee forests should also be protected.
Forfattere
Ahmed Seid Ahmed Anagaw Meshesha Atickem Afework Bekele Diress Tsegaye Alemu Nils Christian Stenseth David J. Zinner Christian Roos Dietmar ZinnerSammendrag
The diversity of bats in Ethiopia comprises at least 80 species, among them the Ethiopian long-eared bat that was described in 2000. It is most likely endemic to the highlands of Ethiopia. However, knowledge of the distribution of the species is limited. During a bat survey in 12 regions of central Ethiopia stretched over 700 km along the Ethiopian Rift, we trapped long-eared bats at sites in three regions and confirmed the species' identity by molecular analysis. All occurrence sites of P. balensis were above 2500 m, confirming this taxon as a high-altitude species. Two of the regions are additions to the known range of P. balensis but it is most likely present in more high-altitude areas of Ethiopia than currently known. Additional surveys in so far unsampled areas are therefore indicated.
Forfattere
Ragnhild MobækSammendrag
Det er ikke registrert sammendrag
Forfattere
Ragnhild MobækSammendrag
Det er ikke registrert sammendrag
Forfattere
Ragnhild MobækSammendrag
Det er ikke registrert sammendrag
Forfattere
Ragnhild MobækSammendrag
Det er ikke registrert sammendrag
Forfattere
Ragnhild MobækSammendrag
Det er ikke registrert sammendrag
Forfattere
Magnus StenbrendenSammendrag
Norsk institutt for bioøkonomi utførte somrene 2022 og 2023 vegetasjonskartlegging i Bykle kommune. I denne rapporten sammenstilles resultatene fra dette arbeidet som omfatter 238 km². Kartlegginga er gjort etter instruks for kartlegging i målestokk 1:20 000–50 000 (VK25). Det er laga vegetasjonskart og avleda temakart for beite for sau og storfe. Denne rapporten beskriver metoden for kartlegging, registrerte vegetasjonstyper og deres fordeling i området. Det er gitt en omtale av beiteverdi og beitekapasitet, og noen råd til skjøtsel av kulturlandskap og beite i kartområdet.
Forfattere
Nicolai MunsterhjelmSammendrag
Det er ikke registrert sammendrag
Forfattere
Linn Borgen NilsenSammendrag
Det er ikke registrert sammendrag