Extinct New Zealand birds. Refer to the Evolutionary Ecology Rese--------------------- arch (July 2003) study of the patterns of extinction in the New Zealand bird population, first presented in Exercise . Again, consider the data on the egg length (measured in millimeters) for the 132 bird species saved in the NZBIRDS file.
a. Find the 10th percentile for the egg length distribution and interpret its value.
b. The moas (P. australis) is a bird species with an egg length of 205 millimeters. Find the z -score for this species of bird and interpret its value.
Extinct New Zealand birds. Refer to the Evolutionary Ecology Research (July 2003) study of the patterns of extinction in the New Zealand bird population, Exercise . Data on flight capability (volant or flightless), habitat (aquatic, ground terrestrial, or aerial terrestrial), nesting site (ground, cavity within ground, tree, or cavity above ground), nest density (high or low), diet (fish, vertebrates, vegetables, or invertebrates), body mass (grams), egg length (millimeters), and extinct status (extinct, absent from island, or present) for 132 bird species that existed at the time of the Maori colonization of New Zealand are saved in the NZBIRDS file. Use a graphical method to investigate the theory that extinct status is related to flight capability, habitat, and nest density.
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