Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Mayhew
1961
Journal
14.
Mar. 18
UCR campus, Riverside Ca., Calif.
This morning the field zoology class had a campus trip. We looked for birds primarily - at least during the first half of the trip. Then lizards began to get active. We caught a total of 35 lizards of 3 species, as follows:
9 Sceloporus occidentalis
6 Uta stansburiana
20 Cnemidophorus hyperythrus
This was the first time I had ever
moosed a C. hyperythrus. They were
extremely abundant on the slopes containing
Encelia farinosa. As this is the driest
year on record for Riverside to date (2.49")
no grass has come up & Encelia hasn't
leafed out. Consequently, these animals
don't have the cover to protect them
that they normally do during their
active periods. Thus, they were relatively
easy to capture. They seem to refuse
to go into a hole, but keep moving
about on the surface. None of them
were seen after 1310 until we quit
looking at 1335. They seemed to be much
more abundant than Uta stansburiana
in that habitat, a total of 28 species
of animals were seen on this trip,
which lasted from 0820 to 1340. Very
few animals were still active when
we quit for the day.