1896-2004
Tid: Tirsdag d. 9. marts 2004
Kl.: 15.00
Sted: Auditorium B
Biologisk Institut
Afd. f. Populationsbiologi
Universitetsparken 15, bygn. 2B
2100 København Ø
Bemærk Tid og Sted !
FÆLLESMØDE MED
SNF CENTER FOR SOCIAL EVOLUTION OG SYMBIOSE, BIOLOGISK INSTITUT, KU
The Geographic Mosaic of
Coevolution
John N. Thompson
The STEPS Institute for Innovation in Environmental Research and
Dept. of Ecology and Evolutionary Biology, Univ. of Santa Cruz, CA.
Coevolution is one of the major processes shaping the diversification of life [1]. All
eukaryotic organisms are involved in symbioses, and all form broader networks of interaction with
other species within ecological communities. We have learned in recent years that coevolution is a
much more genetically and ecologically dynamic process than we previously suspected.
Recent models and empirical studies have shown that geographic selection mosaics,
coevolutionary hotspots, and trait remixing among populations drive coevolution in ways that
create rapid dynamics yet often permit long-term persistence of interacting species [2]. The
coevolutionary process creates continually changing patterns of local adaptation and maladaptation
[3]. The talk will focus on several examples of how coevolution shapes interactions across
landscapes, including a long-term study of a widespread plant/insect interaction that varies from
antagonism to commensalism to mutualism across western North America [4].
1
Thompson, J.N. (1994) The coevolutionary process. Chicago: University of Chicago Press. 2Nuismer, S.L., J.N.
Thompson, and R. Gomulkiewicz (2003) Coevolution between species with partially overlapping geographic ranges.
Journal of Evolutionary Biology 16,1337-1345. 3Thompson, J.N., S.L. Nuismer, and R. Gomulkiewicz. (2002)
Coevolution and maladaptation. Integrative and Comparative Biology 42, 381-387. 4Thompson, J.N. and B.M.
Cunningham (2002) Geographic structure and dynamics of coevolutionary selection. Nature 417, 735 - 738.
Mødeleder: Professor Koos Boomsma, Tel.: 3532 1340, E-mail: jjboomsma@zi.ku.dk