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.
2013
Sammendrag
The calculation of the embedded energy (EE) of twenty barns shows that there is a considerable variation of EE per cow, where the lowest values were one fourth of the highest. Use of timber instead of concrete in walls had most effect to reduce the amount of EE. Cold barns can contribute to reduce the amount of EE, while the amount of EE is higher in free-stall than in tie-stall barns.While for an existing building the amount of EE is nearly fixed, calculating the anticipated amount for a new building can contribute to reduce this value considerably. This progress can help to reduce energy use in organic agriculture and thus contribute to a more sustainable production. Incorporating EE in planning new buildings should be of special importance for organic farming, since regulations demand for more area per animal than in conventional farming. In addition to building new, renovation and extension as well as recycling of building materials should be considered. Planning a new building should also include other topics as operational energy, as well as working conditions, animal welfare and economic considerations.
Forfattere
Jean-Pierre Sarthou Jean-Philippe Choisis A. Amossé Michaela Arndorfer Debra Bailey Katalin Balázs G. Balent M. Deconchat Peter Dennis Sebastian Eiter Wendy Fjellstad Jürgen Friedel Philippe Jeanneret Rob Jongman Max Kainz Gerardo Moreno Annie Ouin Maurizio Guido Paoletti Philippe Pointereau Siyka Stoyanova Davide Viaggi Aude Vialatte Sebastian Wolfrum Felix HerzogSammendrag
Det er ikke registrert sammendrag
Sammendrag
The mating system ofCapercaillie has been referred to as “exploded lek” because displaying males are spaced farther apart than on classical leks. However, inter-male distances and spacing behavior rarely have been quantified. In 2009–2011, we examined the spatial relationships of males on two leks in southeastern Norway by GPS satellite telemetry. Largely exclusive display territories (median 2 ha) surrounded the mating site, but the males spent most of the time displaying on smaller, well-defined display sites (median 182 m2) within their territories. When on their display sites, neighboring birds were spaced 64–212 m apart; decreasing to a minimum during the time of mating. Occasionally, males made long exploratory excursions (median 243 m) across the territories of neighbors, sometimes interacting with them at close distance (< 10m). During daytime, males resided solitarily in radially extending ranges within 1 km of the lek center, commuting to the lek either in the evening or morning by walking or flying, leaving in the morning mostly by walking. The distance from the lek center to night roosting trees and daytime resting areas decreased during the mating season. With interacting males and a spatial arrangement in-between that of classical leks and dispersed polygyny, the term “exploded lek” seems appropriate for the mating system of Capercaillie.
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Ghislain Tchoromi Tepa-Yotto Trond Hofsvang May SæthreSammendrag
Det er ikke registrert sammendrag
Forfattere
Theo RuissenSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Ingebjørg Helena Nymo Morten Tryland Anne Kirstine Højholt Frie Tore Haug Geoffrey Foster Rolf Rødven Jacques GodfroidSammendrag
Det er ikke registrert sammendrag
Forfattere
Paula Marie Bräunlich Ole Andreas Løchen Økstad Rune Slimestad Helle Wangensteen Karl Egil Malterud Hilde BarsettSammendrag
Det er ikke registrert sammendrag