. Bulletin. Science; Natural history; Natural history. 128 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. V CALIFORNIA 0 50 100 150 200 250 300 350 â â â ⢠tilometers i> ARIZONA {P. c. califomica \ Fig. 7. Approximate geographic limits of California Gnatcatcher subspecies. Due to habitat loss, the indicated range of P. c. californica represents historic, not current, distribution. Mapped distri- butions of P. c. margaritae and P. c. abbreviata are similarly approximate, and include various areas characterized by habitat known to be unsuitable for California Gnatcatchers. For discussion of dis- t
. Bulletin. Science; Natural history; Natural history. 128 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. V CALIFORNIA 0 50 100 150 200 250 300 350 â â â ⢠tilometers i> ARIZONA {P. c. califomica \ Fig. 7. Approximate geographic limits of California Gnatcatcher subspecies. Due to habitat loss, the indicated range of P. c. californica represents historic, not current, distribution. Mapped distri- butions of P. c. margaritae and P. c. abbreviata are similarly approximate, and include various areas characterized by habitat known to be unsuitable for California Gnatcatchers. For discussion of dis- tributional patterns on islands in the Sea of Cortez, see Atwood (1! latitude, and (2) areas BG27, PP28, SI29, MA30, and LP31, all located south of 30°N latitude. Populations of Polioptila californica occurring in central Baja California should therefore not be included within the subspecies P. c. californica, as I suggested earlier (Atwood 1988). My previous conclusion, that "two subspecies of P. cali- fornica would be reasonably recognized: P. c. californica in the northern portions of the species' range, and P. c. margaritae in the Cape region," was based (1) on visual inspection of geographic patterns of character variation using a method of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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