Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
11 Nov. Calif: Contra Costa Co., vicinity of Walnut Cr.
Rain has been more or less continuous
for the past four days. A total of about
an inch and a half has fallen in
Berkeley so far this season, most of
this during the past four days. This
evening storm breaking up and sky
clearing. Jim Anderson and I
patrolled roads all about vicinity of
Walnut Creek (town) but found nothing
except a single Tigris. A single Taricha
recorded from Reliez Station Rd., and
an intersection with Glanside Drive
(1¼ mi. S, 1¾ mi. W Walnut Creek (town))
Otherwise covered many miles of road
with very careful search W, S, E and
N of Walnut Creek. Pavements quite
wet to almost dry. 12.5° C air
Temperature at 2200 hrs. Following tour
of road in Walnut Creek area we
drove to Berkeley by way of Tilden Park.
Here Tarichas were common on road-
way. Wetness of pavement judged to
be the same. Then the question again
presents itself: Why are animals active
in more coastal areas and not
active east of the Payette? Are
conditions notably different? Are
populations much thinner? Route
followed shown in orange on preceding
map.