. Animal Ecology. Animal ecology. ^T>" Madro-Tertiary Flore PLEISTOCENE PLIO- CENE MIO- CENE FIG. 26-5 Changes In the relative proportions of different type (from Axelrod 1950). ohave desert regi *Red-taiIed hawk Harris' hawk Caracara Gambel's quail Mourning dove White-winged dove Ground dove Roadrunner *Great horned owl Elf owl Lesser nighthawk Costa's hummingbird Gilded flicker Gila woodpecker Ladder-backed wood- pecker Birds Wied's crested flycatcher Vermilion flycatcher Verdin Cactus wren Bendire's thrasher Curve-billed thrasher LeConte's thrasher *Crissal thrasher Black-tailed gna
. Animal Ecology. Animal ecology. ^T>" Madro-Tertiary Flore PLEISTOCENE PLIO- CENE MIO- CENE FIG. 26-5 Changes In the relative proportions of different type (from Axelrod 1950). ohave desert regi *Red-taiIed hawk Harris' hawk Caracara Gambel's quail Mourning dove White-winged dove Ground dove Roadrunner *Great horned owl Elf owl Lesser nighthawk Costa's hummingbird Gilded flicker Gila woodpecker Ladder-backed wood- pecker Birds Wied's crested flycatcher Vermilion flycatcher Verdin Cactus wren Bendire's thrasher Curve-billed thrasher LeConte's thrasher *Crissal thrasher Black-tailed gnatcatcher Phainopepla *Loggerhead shrike Lucy's warbler Abert's towhee *Black-throated sparrow Chuckwalla Zebra-tailed lizard Fringe-toed lizard Spiny lizards * Side-blotched uta Long-tailed uta Tree uta *Desert horned toads Desert gila monster Night lizard *Whip-tailed lizard Western blind snake Boa snake Whip snake Leaf-nosed snake *Bull snake Common king snake Western shovel-nosed snake Mojave rattlesnake Diamond rattlesnake Sidewinder rattlesnake In addition to these, several species from the de- ciduous forest-edge, woodland, and chaparral pene- trate into the desert. Bird populations are very low in the open desert (0-37 pairs/40 hectares or 100 acres) but may reach 108 pairs per 40 hectares in washes or near water where there is a greater diver- sity of vegetation (Miller 1951, Hensley 1954, Dixon 1959). Gopher turtle Banded gecko Reptiles Crested lizard * Leopard lizard The list of reptiles is compiled from the studies of Mosauer (1935), Dice (1939), Huey (1942), and Johnson et al. (1948). Amphibians are not common, but the red-spotted toad occurs in small ponds. Little quantitative investigation has been made of the in- vertebrate populations of desert scrub, but grass- hoppers and other orthopterans are especially con- spicuous (Tinkham 1948), and the scorpion and tarantula spider are much in evidence. BASIN SAGEBRUSH BIOCIATION This community inhabits both the shad- s
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Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectanimalecology
