Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
E.L. Karlsten
1954
Bulfer conusa (13)
May 26 Kaiser Park meadows, 8000 ft., Fresno Co., Calif.
air temp. 1" above wet grass, dull stable, 12.4 C.
6:05 P.M. (D.S.) water temp. taken 4' from pool's
edge, 2" below pool's surface. meadow grasses
average 1 1/2" inches tall with range 0-5". the overall
meadow appears 1/3 greened out. The Salix lacks
leaves but catkins are burnt and shedding pollen.
leaf buds have appeared. water temp. 1" below
surface of main stem, moving water, 6.20 C. at
6:23 P.M. (D.S.) Average width and depth of main
stem is 16' wide, 15" deep. the banks are steep
sided. The meadow is sandy loam. Trees and willows
have been felled by the stream action. At the lower
end (SW) of the meadow the stream cascades in
very swift bursts through the pine forest. Rodent
burrows are numerous in the soft meadow soil.
Erosion here is evidenced by numerous cattle pies.
Robins and white-crowned sparrows seen in meadow.
Riva drylei adults at SW end along stem. Hydra
most concentrated SW side of meadow in cattails,
melt pools and slow-moving surface rivulets. At
6:23 P.M. (D.S.) I came upon 2 Bulfer conusa
females in shallow run-off pool 30 yards from SW
edge of meadow. Water 2" deep here. Both are
remaining still 4' away while I write, clerical
14.2 C., water where she sat 13.5 C. Air 1" above
water 8.5 C. I now see eggs spread over the grassy
slightly silty bottom about 2" from where the female