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BDEI Workshop on Biodiversity and Ecosystem Informatics Sponsored by NSF, NASA, USGS June 22-23, 2001 http://bdi.cse.ogi.edu IDM 2001 David Maier 1 BDEI What is Biodiversity Data Like? IDM 2001 David Maier 2 BDEI Geo-Referenced Most of it is connected to a place But can be imprecise: North America IDM 2001 David Maier 3 BDEI Species-Referenced Most data also connected with species Genetic: by species & subspecies Invasions and Extinctions Ecosystems: number and distribution of species Incomplete, 2 for 1, 1 for 2 Like cartography in the 15th century Unmapped areas Disagreement on Names Agree on names, disagree on place Seems like earth is changing, but mostly it’s our knowledge of it IDM 2001 David Maier 4 BDEI Other Classifications • Vegetative cover • Plant community • Soil type All vary by time, place, discipline But need to access past observations that make use of old schemes IDM 2001 David Maier 5 BDEI Flux Looking at change in range, distribution, genetics, populations over time Not spanned by one data set When were the various exogenous species of shellfish introduced into each Great Lake? IDM 2001 David Maier 6 BDEI Historical Information A least last 250 years of information is important – books, journals – field notebooks – observation files Sometimes handwritten IDM 2001 David Maier 7 BDEI How to Digitize a Daisy? 750 Million natural history specimens in the US Would like at least to capture labels IDM 2001 David Maier 8 BDEI Small-Scale Features in Large Regions Kudzu in western US: Plots of 1/4 and 1/8 acre in 1 million sq. miles •• IDM 2001 David Maier 9 BDEI Data is Never as Complete as Desired Some research or management question will always benefit from more data – – – – Over a larger area Sampling regimen at smaller granularity Shorter or longer time interval Census versus sample IDM 2001 David Maier 10