Field journal, v4298
Page 183
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Mayhew 1963 Journal 36. Aug. 21 Glamis area, Imperial Co., Calif. in mud, the other dug in in a sandy spot in the shade of the bank. Both spots were still quite moist. They were allowed 2 hours in which to get located; then they were dug out. The one in mud was approximately 4 inches beneath the surface. It had made a chamber lateral to its point of entrance. The second animal had simply dug down approximately 2'1/2 inches beneath the sand surface. It had made no attempt to form a chamber. The wash in which these amphibians were found was rather thickly covered with vegetation (at least, the banks were). Ironwood and palo verde (Cercidium flavidum) were the dominant plants. These plants provided considerable shade; so amphibians could survive quite nicely dug in beneath them. Vegetation was quite sparse a short distance from the banks of the wash, however. It appeared these animals would be restricted to the washes, and would be unable to travel any distance over the intervening terrain. During the afternoon we made