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Synanthropic species lives near and benefit from the association with humans and the habitats that humans create around them. Changes in bird community structure and composition along a wilderness to urbanized landscape gradient are provided below.Based on the information provided in the graph, state whether each of the following statements is true (T) or false (F). a. The graph indicates a increased predation pressure on native bird species in urban ecosystem.___ b. The increase in total bird abundance is indicative of greater food availability in urban ecosystem as compared to wildland.___ c. Habitat fragmentation, forest destruction has resulted in reduced number of species in urban region.___ d. Bird pecies that cannot exist in unpredictable or resource poor environments are likely to flourish in urban ecosystem.___ e. Dominance of adopted species over resource patches in urban ecosystem can outcompete less fit native species evenness in urban ecosystem.___ f. Urbanization creates a novel ecosystem which attracts and stabilizes a large number of bird species from nearby ecosystems.__ |
Answer» a. The graph indicates a increased predation pressure on native bird species in urban ecosystem.True b. The increase in total bird abundance is indicative of greater food availability in urban ecosystem as compared to wildland.True c. Habitat fragmentation, forest destruction has resulted in reduced number of species in urban region.True d. Bird pecies that cannot exist in unpredictable or resource poor environments are likely to flourish in urban ecosystem.True e. Dominance of adopted species over resource patches in urban ecosystem can outcompete less fit native species evenness in urban ecosystem.True f. Urbanization creates a novel ecosystem which attracts and stabilizes a large number of bird species from nearby ecosystems.False |
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