Professor of Biology, Department of Biology, University of Pennsylvania, Philadelphia, USA.
He holds the Thomas E. and Louise G. DiMaura Term Chair in Conservation Biology.
Technical Advisor to the Guanacaste Conservation Area, Costa Rica.
ecology and biodiversity of ecosystems.
1984 Crafoord Prize (Swedish Royal Academy of Sciences) "for his imaginative and stimulating studies on co-evolution which have inspired many researchers to further work in this field".
1993 Award for Improvement of Costa Rican Quality of Life, Universidad de Costa Rica (co-award with W. Hallwachs).
1994 Silver Medal Award, International Society of Chemical Ecology
1995 Conservation Biology Award, Society for Conservation Biology
1996 Thomas E. and Louise G. DiMaura Endowed Term Chair in Conservation Biology
1997 Kyoto Prize in Basic Science
Janzen, D. H. ed. 1983. Costa Rican Natural History, University of Chicago Press, Chicago, 816 pp.
Janzen, D. H. 1986. The future of tropical ecology. Ann. Rev. Ecol. Syst. 17, 305-24.
Janzen, D. H. 1988. Guanacaste National Park: tropical ecological and biocultural restoration. In Rehabilitating Damaged Ecosystems, vol. 11, pp. 143-192, J. Cairns, Jr., ed., CRC Press, Boca Raton, Florida.
Reid, W. V., S. A. Laird, R. Gómez, A. Sittenfeld, D. H. Janzen, M. A. Gollin and G. Juma. 1993. Biodiversity Prospecting. World Resources Institute, Washington, D.C. 341 pp.
Janzen, D. H. 1993. Caterpillar seasonality in a Costa Rican dry forest. In: Caterpillars. Ecological and evolutionary constraints on foraging, N. E. Stamp and T. M. Casey, eds., Chapman and Hall, New York, pp. 448-477.
Janzen, D. H. 1994. Wildland biodiversity management in the tropics: where are we now and where are we going? Vida Silvestre Neotropical 3, 3-15.
Janzen, D. H. 1996. On the importance of systematic biology in biodiversity development. ASC Newsletter 24:17, 23-28.
Janzen, D. H. 1997. Causes and consequences of biodiversity loss: liquidation of natural capital and biodiversity resource development in Costa Rica. In Biodiversity and Human Health, eds. F. Grifo and J.Rosenthal, Island Press, Washington, D. C. pp. 302-311.
Janzen, D. H. and R. Gámez 1997. Assessing information needs for sustainable use and conservation of biodiversity. In Biodiversity Information: Needs and Options, eds. D. L. Hawksworth, P. M. Kirk and S. Dextre Clarke, CAB International, Wallingford, Oxon, UK, pp. 21-29.
Janzen, D. H. and I. D. Gauld 1997. Patterns of use of large moth caterpillars (Lepidoptera: Saturniidae and Sphingidae) by ichneumonid parasitoids (Hymenoptera) in Costa Rican dry forest. In Forests and Insects, eds. A. D. Watt, N. E. Stork and M. D. Hunter, Chapman & Hall, London, pp. 251-271.
Janzen, D. H. 1998. Gardenification of wildland nature and the human footprint. Science 279:1312-1313.
Miller, J. S., D. H. Janzen, and J. G. Franclemont 1997. New species of Euhapigioides, new genus,and Hapigiodes in Hapigiini, new tribe, from Costa Rica, with notes on their life history and immatures (Lepidoptera: Notodontidae). Tropical Lepidoptera 8(2):81-99.
Janzen, D. H. 1998. Conservation analysis of the Santa Elena property, Peninsula Santa Elena, northwestern Costa Rica. Unpublished report to the Government of Costa Rica, 129 pp. + Appendices.
Janzen, D. H., M. J. Sharkey, and J. M. Burns 1998. Parasitization biology of a new species of Braconidae (Hymenoptera) feeding on larvae of Costa Rican dry forest skippers (Leidoptera: Hesperiidae: Pyrginae). Tropical Lepidoptera 9(suppl): 33-41.
Janzen, D. H. 1999. Gardenification of tropical conserved wildlands: Multitasking, multicropping, and multiusers. PNAS 96(11):5987-5994.
Janzen, D. H. 1999. La sobrevivencia de las areas silvestres de Costa Rica por medio de su jardinificación. Ciencias Ambientales No. 16:8-18.
Burns, J. M. and Janzen, D. H. 1999. Drephalys: division of this showy neotropical genus, plus a new species and the immatures and food plants of two species from Costa Rican dry forest (Hesperiidae: Pyrginae). Journal of the Lepidopterists' Society 53(3):77-89.
Janzen, D. H. 2000. How to grow a wildland: the gardenification of nature. In Nature and Human Society, eds. P. H. Raven and T. Williams, eds., National Academy Press, Washington, D. C. pp.521-529.
Janzen, D. H. 2000. Costa Rica's Area de Conservación Guanacaste: a long march to survival through non-damaging biodevelopment. Biodiversity 1(2):7-20.