Items where Author is "Tybirk, Knud"

Number of eprints: 15.

Journal paper

Bruus, Marianne; Axelsen, Jørgen Aagaard and Tybirk, Knud (2013) Weeds, insects and food chains in organic cereal fields. , ( ). [Completed]

Bruus, Marianne; Axelsen, Jørgen Aagaard and Tybirk, Knud (2013) Weeds, insect fauna, and the lack of food chains in conventional cereal fields. , , - . [Completed]

Axelsen, Jørgen Aagaard; Sønderskov, Mette; Bruus-Pedersen, Marianne; Tybirk, Knud and Eriksen, Jørgen (2004) FieldEco – a multi-purpose biologically driven food web model. , , . [Completed]

Aude, Erik; Tybirk, Knud; Michelsen, Anders; Ejrnæs, Rasmus; Hald, Anna Bodil and Mark, Susanne (2004) Conservation value of the herbaceous vegetation in hedgerows - does organic farming make a difference? Biological Conservation, 118 (4), pp. 467-478.

Tybirk, Knud; Alrøe, Hugo Fjelsted and Frederiksen, Pia (2004) Nature quality in organic farming: A conceptual analysis of considerations and criteria in a European context. Journal of Agricultural and Environmental Ethics, 17 (3), pp. 249-274.

Aude, Erik; Tybirk, Knud and Pedersen, Marianne Bruus (2003) Vegetation diversity of conventional and organic hedgerows in Denmark. Agriculture, Ecosystems and Environment, 99 (1-3), pp. 135-147.

Newspaper or magazine article

Bruus Pedersen, Marianne; Axelsen, Jørgen Aagaard and Tybirk, Knud (2011) Er der mere liv i økologiske kornmarker? Landbrugsavisen, 22 December 2011, , - .

Tybirk, Knud; Aude, Erik and Bruus Pedersen, Marianne (2003) Mere natur i økologiske hegn. [More nature in organic hedges.] Vand og Jord, September 2003, 10 (3), pp. 93-96.

Working paper

Bruus Pedersen, Marianne; Axelsen, Jørgen Aagaard and Tybirk, Knud (2011) Biomass of weeds, crops and arthropods in conventional and organic cereal fields. Working paper. [Unpublished]

Bruus Pedersen, M.; Axelsen, Jørgen Aagaard and Tybirk, Knud (2011) Food chains in cereal fields. Working paper. [Unpublished]

Frederiksen, Pia; Ejrnæs, Rasmus and Tybirk, Knud (2004) Afrapportering af Crosscutting 1: koblinger mellem drift af vedvarende græs (wp2) og biologisk naturkvalitet (wp3). Working paper, Afd. for systemanalyse og Afd. f. Vildtbiologi og Biodiversitet, Danmarks Miljøundersøgelser . [Unpublished]

Conference paper, poster, etc.

Tybirk, Knud and Fredshavn, Jesper (2003) Naturkvalitet i økologisk jordbrug – koncept og foreløbige resultater. [Nature Quality in organic farming - concept andpreliminary resxults.] In: DJF rapport, Danmarks JordbrugsForskning, 89, pp. 189-198.

Report

Fredshavn, Jesper; Tybirk, Knud and et al. (2003) FØJOII-29: Nature Quality in Organic Farming. Midterm Status Report 2003. National Environmental Research Institute , Dept. Wildlife Ecology and Biodiversity.

Report chapter

Pedersen, Marianne Bruus; Aude, Erik and Tybirk, Knud (2004) Flora og insekter i hegn på økologiske og konventionelle bedrifter. [Hedgerow flora and insect fauna on organic and conventional farms.] In: DJF Markbrug. .

Tybirk, Knud; Aude, Erik and Pedersen, Marianne Bruus (2003) Naturindholdet i hegn på økologiske og konventionelle bedrifter. [Plants and arthropods in organic and conventional hedges.] In: DJF rapport Markbrug, nr. 89. .

This list was generated on Sat Aug 16 11:29:37 2025 CEST.