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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
SP Myers
1977
Journal
Deadhorse, Prudhoe Bay, N. Slope, Alaska
6 Aug
0700 beginning to sample transects w/ Dave Shuford - running two very different areas: the East Dock + Sag River set and Middle Ridge + Angel Pogo transects.
Activity near East Dock and the Sag is quite high - many Celeleius juveniles flocking about, and shorebirds popped up in many transects. An extraordinary # of Trypette today, beginning w/ a 9 w/ broad in T39. See sp. accent. Golden obvious but considerably less abundant than last week.
The highlight was a pair of juvenile Limosa haemastica in some littoral ponds SSE from East Dock by ~1 mile along the road. In contrast to the activity level in the eastern sector, i.e. the sand dominated region, the pace of activity in the west was much slower, with fewer birds seemingly restricted to fewer areas. This may largely be due to the coastal character of the sand region, and/or it is in a position to pick up the coastal migration movement.
Haul road - Deadhorse to Toolik Lake, N. Slope, Alaska
1815 left Deadhorse w/ Dave Shuford and Claire Buchanan driving south along the haul road. We reached Toolik Lake (~68°43'N, 149°1'W) at 2330 after a slow but steady trip. Weather gradually deteriorated, becoming foggy with scattered rain as we proceeded inland and up. Had been clear at Prudhoe. We made very few stops en route, and I therefore will refrain from any extensive description until writing up the return trip. Fog obscured much of our view south of Sagavanirp Highlands. See daily list for spp seen. Found one "pauper" near Franklin Bluff - a wolf that has learned to beg from passing trucks. Sampled two roadside ponds with Claire - she works on Daphnia and finds a succession pattern involving 2 spp D. pulex (light) and D. m. unhaudordiaria (dark), with pulex moving in to newly formed ponds first (but being replaced by D.m. later). Apparently D.p. is adapted to electrophilic situations whereas D.m. to nutrient poor conditions. D.m. also more resistant to a heterotrophic predator because of its dark pigmentation.
Haul road: Toolik Lake to Chandalar
7 Aug
Again a rushed trip - this time w/ the intent of catching Vern Romankova (IAUSTAR) to discuss Mackel River Vespidae. Foggy from Toolik over first 10 km, then low fog up to Ahtaga Pass, but clearing from pass south to Chandalar. We left Toolik at ~0930 and arrived at