Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Weather during count over cast with
strong southerly wind sun came
out a few times & then briefly
Meter Plot No. 2
(Intermediate)
Date July 8, 1952
Pt. Barrow, Alaska
1400
Funnel traps:
1) 1 dytiscid, 3 spiders
2) 1 spider
3) 2 dytiscids; 3 spiders
Can count: 9 spiders; 8 Fungivoids; 4 Slophylenids, ±75
collembola.
Surface fauna: 13 Ephydrids. 11 Fungivoids. 16 spiders
and 3 Cedicomyiids. Replicates gave a somewhat
higher count on Ephydrids ±18, essentially same figure
for spiders + Fungivoids; 2 anthomyid's per sq. meter
showed up in 3 of the 5 replicates, also 1 out of the
five showed 1 Tipulid adult. Some Collembola ±50
visible within desturbing plant cover
43 + C
Berlese sample: 15 mm of collembola, with 1 small dipteran
larvae in 8 x 90 mm vial; 12 earthworms - 12 hrs
run - Berlese - Sample saved.
15 + 12
Vegetation notes: ground very mud dry and grass stems
immediate surface area - this area not dug up or insect,
plot at 3 replicates reveals slightly higher spider +
collembola count.
Remarks: Longspur actively feed on this polygon