Alaska field notes, v4467
Page 413
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Lemmus trimucronatus John O. Sallivan Barrow, Alaska 1962 8 June Lemmings seem to be scarce at present. Mullen has 4 of them in the animal colony. 9 June Cade and Weber had captured some lemmings in the drum area by turning over the snow with shovels - uncovering - and grabbing the animals. Mullen, Piper, Stevens, and I tried it this after- noon. We turned over shovelfuls - which were melted and fairly soft - the day was very clear, sunny and warm (around 46°). The hunt was successful: 10 lemmings were captured. (from around 1600-1700). Stevens and I went out again after supper and caught 7 more in this way + 2 in the live traps - total of 9. (19 for the day). The drum area is cross-crowed by shallow ditches (wet) with slightly higher (dry) ridges in between. The lemmings were under the snow on the ridges. Stevens and I developed a couple of new elaborations on the method: Trample down the snow from one ditch to another, isolating a portion of ridge - by collapsing connecting tunnels. Then turn over the snow in between. This was fairly successful. Also have on dig at one end - the second watch at the period