Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2003
Authors
Heleen A. de Wit Lars R. Hole Øyvind Kaste Jan Mulder Arne O. Stuanes Richard WrightAbstract
No abstract has been registered
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Authors
Lampros LamprinakisAbstract
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Authors
Tore SkrøppaAbstract
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Authors
Erlend Ystrøm Haartveit Dag FjeldAbstract
No abstract has been registered
Abstract
We fogged trees in two pine dominated forests in Norway with a synthetic pyrethroid in order to compare the canopy-dwelling fauna of arthropods between costal (Kvam) and boreal (Sigdal) sites and between old (250-330 years) and mature (60-120 years) trees at Sigdal. Almost 30,000 specimens were assigned to 510 species; only 93 species were present at both sites. Species diversity, as established by rarefaction, was similar in old and mature trees. However, the number of species new to Norway (including nine species new to science) was significantly higher in the old trees. We suggest that the scarcity of old trees, habitat heterogeneity and structural differences between old and mature trees may explain these patterns. Productivity and topographic position at the site of growth explained the between-tree variation in species occurrence for the more abundant species, which were mainly Collembola and Oribatida. Species diversity was similar at the boreal and coastal sites, but there were clear differences in species composition
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Authors
Trond Knapp Haraldsen Per Anker PedersenAbstract
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Authors
Rolf Arnt Olsen Grete RasmussenAbstract
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Abstract
No abstract has been registered