Chapter 3 Opener
Figure 3.1 The current extent of tropical forests, and the areas that have been cleared of tropical
forests
Figure 3.2 Coral reefs are built up from the skeletons of billions of tiny individual animals
Figure 3.3 Numbers of amphibian (A) and bird (B) species in S. A. are greatest just south of the
Equator in western Amazon. (C) Certain areas are characterized by high species concentrations
Figure 3.3 Numbers of amphibian (A) and bird (B) species in S. A. are greatest just south of the
Equator in western Amazon
Figure 3.3 (C) Certain areas are characterized by high species concentrations
Figure 3.4 Number of species of coral reef organisms, including fish, corals, snails, and
crustaceans, found in different regions of the world
Figure 3.5 (A) Approximately 1.5 million species have been identified and described. (B) Estimates
of described and undescribed species
Figure 3.5 (A) Approximately 1.5 million species have been identified and described
Figure 3.5 (B) Estimates of described and undescribed species
Figure 3.6 Researchers first encountered Laonastes aenigmamus being sold as a delicacy in Laos
Figure 3.7 (A) An entomologist checks sheet containing fallen insects and leaves. (B) An inflatable
platform base is placed in the canopy
Box 3.1 Conserving a World Unknown: Hydrothermal Vents and Oil Plumes
Figure 3.8 (A) A researcher uses insecticidal fog to sample the insect species. (B) A researcher
begins the process of sorting, describing, and identifying the insects
Figure 3.9 A new phylum, the Cycliophora, was first described in 1995