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Updated 17.2.2006
by O.W.Røstad
 

Department of Ecology and Natural Resource Management (INA)


    Sigmund Hågvar
    Professor

    Postal address: INA, UMB, P.O.Box 5003, NO-1432 Ås, Norway
    Office: Room 329, Urbygningen, Ole Sverres plass 1
    E-mail: sigmund.hagvar@umb.no
    Telephone: +47 64 96 57 51; Fax: +47 64 96 58 01
Subject area:
  • Nature conservation (attitudes to nature, biological diversity, conservation of coniferous forest).
  • Soil zoology (especially microarthropods).
  • Entomology (Norwegian bugs and ants, beetles in oldgrowth forest, winter active insects).
  • Ornithology (Norwegian woodpeckers and hole-nesters, what forestry can do for bird-life).

Research:
At the time mainly the effect of climatic change on soil-living microarthropods. Two projects in alpine habitats at Finse: The effect of artificial heating of experimental plots, and colonizing of pristine soil close to a receding glacier.

Teaching:
Responsible for:
  • NATF200 - Nature Conservation and Management in Norway
  • NATF302 - Main Excursion in Nature Conservation and Management
Also lectures in:

Selected publications:
Scientific publications:

    Hågvar, S. & Greve, L. 2004. Winter active flies (Diptera, Brachycera) recorded on snow – a long-term study in south Norway. - Studia dipterologica 10: 401-421.

    Hågvar, S., Nygaard, P. & Bækken, B.T. 2004. Retention of forest strips for bird-life adjacent to water and bogs in Norway: Effect of different widths and habitat variables. - Scandinavian Journal of Forest Research 19: 452-465.

    Hågvar, S. 2000. Navigation and behaviour of four Collembola species migrating on the snow surface. - Pedobiologia 44: 221-233.

    Hågvar, S. 1999. Nature as an arena for the quality of life: Psycho-spiritual values - the next main focus in nature conservation? - The Environmentalist 19: 163-169.

    Hågvar, S. 1998. Mites (Acari) developing inside decomposing spruce needles: Biology and effect on decomposition rate. - Pedobiologia 42: 358-377.

    Hågvar, S. 1998. The relevance of the Rio-Convention on biodiversity to conserving the biodiversity of soils. - Applied Soil Ecology 9: 1-7.

    Hågvar, S. 1995. Long distance, directional migration on snow in a forest collembolan, Hypogastrura socialis (Uzel). - Acta Zool. Fennica 196: 200-205.

    Hågvar, S. 1994. Log-normal distribution of dominance as an indicator of stressed soil microarthropod communities? - Acta Zool. Fennica 195:71-80.

    Hågvar, S. 1994. Preserving the natural heritage: The process of developing attitudes. - Ambio 23: 515-518.

    Hågvar, S. 1990. Reactions to soil acidification in microarthropods: Is competition a key factor? - Biol Fertil Soils 9: 178-181.

    Hågvar, S. & Abrahamsen, G. 1990. Microarthropoda and Enchytraeidae (Oligochaeta) in naturally lead-contaminated soil: A gradient study. - Environ. Entomol. 19: 1263-1277.

    Hågvar, S., Hågvar, G. & Mønness, E. 1990. Nest site selection in Norwegian woodpeckers. - Holarctic Ecology 13: 156-165.

    Hågvar, S., Sørensen, O.J. & Lund, E. 1989. Nest-box studies on hole-nesting passerines in spruce forest. I. Effect on nest hole availability on population density. - Fauna norv. Ser. C., Cinclus 13: 33-41.

    Hågvar, S. 1988. Decomposition studies in an easily-constructed microcosm: Effects of microarthropods and varying soil pH. - Pedobiologia 31: 293-303.

    Hågvar, S. 1982. Collembola in Norwegian coniferous forest soils I. Relations to plant communities and soil fertility. - Pedobiologia 24: 255-296.

    Hågvar, S. & Amundsen, T. 1981. Effects of liming and artificial acid rain on the mite (Acari) fauna in coniferous forest. - Oikos 37: 7-20.

    Hågvar, S. & Abrahamsen, G. 1980. Colonisation by Enchytraeidae, Collembola and Acari in sterile soil samples with adjusted pH levels. - Oikos 34: 245-258.

    Hågvar, S. 1976. Phenology of egg development and egg-laying in a winter-active insect, Chionea araneoides Dalm. (Dipt., Tipulidae). - Norw. J. Ent. 23: 193-195.

    Hågvar, S. 1975. Energy budget and growth during the development of Melasoma collaris (Coleoptera). - Oikos 26: 140-146.

Books:

    Hågvar, S. 2005. Bli venn med tiden. Om tidsbruk, god planlegging og livskvalitet. - Tiden Norsk Forlag. 141 pp.

    Hågvar, S. 2002. To berg i skogslandet. En villmarksskildring. Kolofon. 135 pp. (Les mer)

    Berntsen, B. & Hågvar, S. 2001. Norsk naturarv. Våre naturverdier i internasjonalt lys. Andresen & Butenschøn. 255 pp. (Les mer)

    Taksdal, G. & Hågvar, S. 2001. Økologi og miljøvern. Landbruksforlaget. 224 pp. (Les mer)

    Hågvar, S. & Støen, H.A. 1996. Grønn velferd: Vårt behov for naturkontakt. Kommuneforlaget. 133 pp. (Les mer)

    Berntsen, B. & Hågvar, S. 1991. Norsk urskog. Verdier-trusler-vern. Universitetsforlaget. 159 pp. (Les mer)

    Hågvar, S. 1982. Glimt fra norsk natur. Miljøko forlag.

    Hågvar, G. & Hågvar, S. 1968. Fra kattuglas rike. Norlis forlag.


Department of Ecology and Natural Resource Management
P.O.Box 5003
NO-1432 Ås
Norway
Tel: +47 64 96 58 00
E-mail: ina@umb.no
  		Vollebekk:
Tel.: +47 64 96 50 21
Fax: +47 64 96 58 02
 Urbygningen:
Tel.: +47 64 96 58 00
Fax: +47 64 96 58 01