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Science 27 July 2001:
Vol. 293. no. 5530, pp. 655 - 657
DOI: 10.1126/science.293.5530.655
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Investigating Long-Term Ecological Variability Using the Global Population Dynamics Database
Pablo Inchausti,1
John Halley2
The Global Population Dynamics Database (GPDD) is an
important new source of information for ecologists, resource managers, and environmental scientists interested in the dynamics of natural populations. It comprises more than 4500 time series of population abundance for over 1800 animal species across many taxonomic groups and
geographical locations. The GPDD offers great potential for asking
comparative questions about the nature of population variability. We
illustrate this by characterizing some critical features of ecological
variability, variance growth, and spectral reddening.
1 Laboratoire d'Ecologie, Ecole Normale
Supérieure, 46 rue d'Ulm, Paris 75005 France.
2 Department of Ecology, School of Biology,
Aristotle University, UP Box 119, 54006 Thessaloniki, Greece. E-mail:
inchauss{at}biologie.ens.fr (P.I.); jmax{at}bio.auth.gr (J.H.).
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