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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.

NIBIO POP → NIBIO Rapport → NIBIO Bok → Våre poenggivende vitenskapelige publikasjoner →

2005

Authors

Ivar Gjerde Magne Sætersdahl Jørund Rolstad Ken Olaf Storaunet Hans Blom Vegard Gundersen Einar Heegaard

Abstract

We investigated the relationship between site productivity and diversity of vascular plants, bryophytes, lichens, and polypore fungi in forests based on species richness data in 0.25 ha forest plots (grain size), selected from six 150-200 ha study areas (focus), and spanning over a latitudinal distance of 1350 km (extent) in Norway. We (1) searched for prevailing productivity-diversity relationships (PDRs), (2) compared PDRs among taxonomic groups and species found in different micro-habitats, and (3) investigated the effect of increasing plot (grain) size on PDRs. Using vegetation types as a surrogate for site productivity, we found a general pattern of increasing species richness with site productivity. On average total species richness doubled with a ten-fold increase in productivity. Lichens PDRs stood out as less pronounced and more variable than for other species groups investigated. PDRs of species associated with downed logs tended to level off at high-productive sites, a pattern interpreted as an effect of disturbance. Increasing the grain size >10-fold did not change the proportional difference in species richness between sites with high and low productivity.

To document

Authors

Helena Bichão Hanna Mustaparta Atle Wibe Jorge Araùjo Anna-Karin Borg-Karlson

Abstract

Det er ikke registrert sammendrag

Authors

Frode Veggeland Svein Ole Borgen

Abstract

Det er ikke registrert sammendrag

Authors

N Johnk AM Hietala Carl Gunnar Fossdal DB Collinge MA Newman

Abstract

Det er ikke registrert sammendrag

To document

Authors

Bjørn Økland Andrew M. Liebhold Ottar Nordal Bjørnstad Nadir Erbilgin Paal Krokene

Abstract

Det er ikke registrert sammendrag

Authors

Svein Ole Borgen Anne Moxnes Jervell Ann-Christin Sørensen

Abstract

Det er ikke registrert sammendrag

Authors

Odd Jarl Borch Svein Ole Borgen Egil Petter Stræte

Abstract

Det er ikke registrert sammendrag

Authors

Svein Solberg Holger Lange Lars Aurdal Rune Solberg Erik Næsset

Abstract

Det er ikke registrert sammendrag

Authors

Anders Baudin Lars Eliasson Åsa Gustafsson Lina Hagström Klara Helstad Anders Qvale Nyrud Jon Bingen Sande Erlend Y. Haartveit Rune Ziethén

Abstract

Det er ikke registrert sammendrag

Authors

Ola Flaten Gudbrand Lien Martha Ebbesvik Matthias Koesling Paul Steinar Valle

Abstract

This study was conducted to explore organic and conventional dairy farmers? perceptions of risk and risk management, and to examine relationships between farm and farmer characteristics, risk perceptions, and strategies.