By Richard A. Bradley, Steve Buchanan
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Extra info for Common Spiders of North America
California and Texas are both large states with considerable topographic and climatic variety, thus it is not surprising that they host many spider species. Although many spiders have adapted to existence in the arid regions of the Southwest, humid habitats and forests typically harbor the highest numbers of spiders.
III. Title. 48-1992 (R 2002) (Permanence of Paper). Cover illustration: Steve Buchanan. TO MY PARENTS, MARJORIE AND WESLEY BRADLEY, FOR FOSTERING A DEEP RESPECT AND CURIOSITY ABOUT THE NATURAL WORLD, AND MY BROTHER, DAVE, FOR SHARING MANY JOYFUL HOURS EXPLORING AND CELEBRATING WILD PLACES. edu/go/commonspiders. 2 mm Genus Mangora: The spiders of the genus Mangora are small spiny orbweavers with tufts of long, thin sensory hairs (trichobothria) on the front edge of the tibiae of leg III. 3 mm PLATE 23 SPACE-FILLING WEB BUILDERS: CELLAR SPIDERS Some of these are illustrated with abbreviated legs to permit room for larger view of the body.
We don’t notice the enormous variety of life that is all around us. The lawn becomes an undifferentiated green carpet; the forest edge, a green wall. Even more invisible to us is the microworld. Down among the thatch of dead grass and leaves at the soil surface is a world teeming with bacteria and fungi that break down and recycle dead tissues, creating the basis for the living soil. The microscopic organisms feed a plethora of others. By kneeling down and parting the grass with our hands or a stick, we get a glimpse into this microcosmos.