- Egoistiske gener og eksistensialistisk hodebry Av Dag O. Hessen
- Structure and function Many scientists use food webs to portray ecolo-
- Ecology, 83(7), 2002, pp. 18861898 2002 by the Ecological Society of America
- WoodStoick 2004 The Present and Future of Ecological Stoichiometry
- Mentale parasitter og kulturell darwinisme Dag O. Hessen
- SPECIAL FEATURE Too Much Energy?1
- Ecology, 87(2), 2006, pp. 433443 2006 by the Ecological Society of America
- Genome streamlining and the elemental costs of growth
- Energy input and zooplankton species richness Dag O. Hessen, Vegar Bakkestuen and Bjrn Walseng
- SpecialFeature Ecology, 85(5), 2004, pp. 11791192
- http://folk.uio.no/hessen/ Peter Wessel Zapffe
- Ecology 2007 21, 956962
- Elements of ecology and evolution Dag O. Hessen and James J. Elser
- Malthus and Darwin -an ecological perspective Dag O. Hessen
- Bioteknologien og Frankenstein Dag O. Hessen
