Alaska field notes, v4437
Page 61
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
J.P. Myers 1977 Journal Providence Bay, N. Slope, Alaska 24 June carh. quite a day - out into the field at 0620, back at VE by 1715. Forgot lunch, but that made little difference as there wouldn't have been time anyway. Sampled all transects save 8 & 9 (West Dock). The difference in bird densities between Upland tundra and anything else was painfully evident, particularly on transect 4 & 5 where I recorded no shorebirds. See transect summaries. Weather not as bad as last few days - with a steady moist misted of rain (but the mist is thick enough to render binoculars a frosted mess) unless it's Temp ~38°. Steady NW wind. Began clearing ~1700. Typical timing. 25 June 0600 out to transect 8,9, near the West Dock (Barrow analog). Sampled each twice this am, going out and then returning. A caribou proceeded me as I worked out, moving along the transect line, running back to investigate me, then clambering on. Not the exact coordinates animal. Saw several buffle in route, displaying 87° (see appendix). An arctic fox worked over some littoral tundra by the end of the dock, harassing a B. bernicula. Weather improved considerably - light NW wind, occasional calm. Temp in high 30's. High clouds, no mist. After sampling both the West Dock transects I drove out to the East Dock to check out the sand dune regime: few birds in if any in the dunes proper, although the place appeared replete w/ Spermophilus. There are large expanses of sedge carried sand (Consolidated dune) that harbor C. pinilla (a few), Calcaris lap (a few) and both phalaropes wherever there is a large pool. Near 'Surf-Cote Camp' and by the river in sedge marshes there appeared to be large numbers of waterfowl. But in general this area is bleak compared to other local sites. With today's good weather there was an emergence of dioptrum - looks like a large chronomid - which Phalaropes (both spp), Arctic terns, Sabine's + Glorious gulls are keying in on a roadside pond. A feeding frenzy. Stopped on way back from sand dunes to talk with Angus Gavin about waterfowl habitat. He tells me the following: GEESE - Taster ellipsores prefer large lake margins in low areas, and can nest quite densely but in separate pairs. Branta canadensis also nest in low wet areas but do not require as large a body of water - they will nest on small islands or ponds. Branta bernicula nest in colonies in a