Museums and herbaria in industrialized countries hold a huge amount of data in the form of labels associated with specimens collected in developing countries. These data represent a significant part of the existing information on biodiversity available for most developing countries. In this paper we first discuss the usefulness of the label information, providing some examples from Mexico. Acquiring and updating the information requires international cooperation, including the agreement of common policies for ownership and use of the data. Beneficiaries of such efforts will be not only the countries that assemble the databases from foreign museums, but the international scientific ommunity as well, due to the increased scientific value that large databases coupled with modern computer technologies provide. Surveying the biological diversity of a nation involves the inventorying, cataloging, and mapping of ecosystems, species, populations, and genes. It may also include research on the dynamic aspects of population biology, community and ecosystems ecology, and human uses of the different components of biodiversity. The task of biological surveying is among the oldest that biologists have faced (Badiano, 1552; Hernandez, 1790). However, the increasing rate of ecosystem destruction with its associated species extinction and genetic erosion (McNeely et al., 1990; Wilson, 1992; Ehrlich, 1995; Whitmore & Sayer, 1992), and the realization that perhaps 90% of the species on the planet remain to be named, not to mention mapped or understood (May, 1990; Groombridge, 1992; Stork, 1988), have added urgency to the problem. To address this urgency, new methods of documenting biodiversity are currently being developed-such as Rapid Assessment Programs (RAPs) (Conservation International, 1991, 1992, 1993a-c), the division of labor and information management methods of Costa Rica's Instituto Nacional deBiodiversidad (INBio) (Janzen et al., 1993), All Taxa Biotic Inventories (Janzen, 1993), new sampling methods including the so-called BioRaps (Margules & Austin, 1995), where extrapolations of distributions are obtained prior to the sampling (Margules & Redhead, 1995), and advanced methods using sensors and pattern recognition software. The reasons different societies and cultures may have for cataloging biodiversity run the spectrum from the strictly utilitarian to the philosophical and religious (Norton, 1987; Wilson, 1992). In countries like Mexico, which has a large, diverse rural population (Sarukhain et al., 1996), utilitarian reasons are very important. Indeed, in Mexico more than 3000 species are used as medicinal plants (Argueta et al., 1994), many other species have industrial applications (Sarukhain & Dirzo, 1992), such as jojoba for high-grade oil, and there are hundreds of varieties of corn, beans, chile, and other species that are used for food. Still, non-utilitarian reasons for preserving biological diversity are expressed very forcefully by different segments of the public, such as outcries for protecting the monarch butterfly [Secretarfa de Desarrollo Social (SEDESOL), 1993], waterfowl [Commission for Environmental Cooperation (CEC), 1995], marine mammals (Salinas & Ladron de Guevara, 1993), and other conspicuous species. A good example in plants is the recently discovered Lacandonia schismatica (Martifnez & Ramos, 1989), which despite being apparently useless and inconspicuous has been protected by the Chole Indian community of San Javier, Chiapas, at the cost of not clearing the remaining patch'We thank Peter Raven and the organizers of the Symposium for the invitation to participate. Many ideas presented here have been discussed extensively with Alejandro Pelaez, whose involvement we gratefully acknowledge. We also thank Mary Carmen Navarro and Rafael Caballero for the GIS work and species accumulation curves analyses, and Lupita Bermejo for helping with the references. Exequiel Ezcurra developed the algorithms for spatial analysis of collecting points. We are grateful to Amy Scheuler McPherson for very detailed and kind editorial work. 2 Comisi6n Nacional Para el Conocimiento y Uso de la Biodiversidad (CONABIO) Ferndndez Leal 43, Coyoacdn, Mexico D.F. 04020, Mexico. 3 Centro de Ecologfa, UNAM. Apdo. Postal 70-275, Mexico 04510, Mexico. 4 Museo de Zoologfa Alfonso L. Herrera, Fac. Ciencias, UNAM. Apdo. Postal 70-399, Mexico D.F. 04510, Mexico. ANN. MISSOURI BOT. GARD. 83: 562-573. 1996. Volume 83, Number 4 Sober6n et al. 563 1996 International View
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