BIO153H5 Chapter Notes -Archaea, Ecosystem Diversity, Green Belt Movement
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They identified more than 900 different species of beetles among the individuals that fell. (fig. National park in the southeastern united states: a consortium of biologists and research organizations initiated this all-taxa survey in 1998. When it is complete, in 2015, biologists will have a much better database to use in estimating the extent of biodiversity. River basin, portions of east africa, and southwest china are important hotspots. (fig. 55. 3a: researchers are also interested in finding out which regions have a high proportion of endemic species that is, species that are found in one area and nowhere else. (fig. Threats to biodiversity: the high rate of extinction, today species are vanishing faster than at virtually any other time in earth"s history. Modern rates of extinction are 100 to 1000 times higher than the average rate recorded in the fossil record over the past 550 million years: fossil evidence on islands in the south pacific suggests that about.
