FIGURE 29.1 Some negative consequences of land use by humans. (a) A mudslide caused by logging and poor land management. (b) Habitat conversion and land degradation due to shifting agriculture. (c) Logging and other habitat alteration can adversely affect many species, including the spotted owl. (d) Extensive paving of land due to the growth of cities reduces the amount of land available for vegetation and water infiltration.
(a: David McNew/Getty Images; b: Ryan Pyle/Corbis; c: DLILLC/Corbis; d: Richard Cummins/SuperStock)