Alaska field notes, v4436
Page 115
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Transcription
J P Myers 1976 Journal GRID 4, Barrow, Alaska 13 August Russ and I today finished the basic layout of grid 4, placed on Gasoline Ridge. Transect 7 runs directly through it. It was put in this habitat so as to maximize the diversity of habitat types for melanotos density studies next year. TRANSECTS 6-10 14 August E wind carrying rain at dawn, but dropping to a moderate breeze by 0700. Temp 54° 34'. sampled transects 6-10 from 0715-1035. See transect accent for details TRANSECT SUMMARY 1-5 50 ha. 6-10 50 ha. Pluvialis dominica a 8 Pluvialis squatarola j 2 C. alpina a 35 C. bairdi j 10 C. melanotos q 2 j 7 Tryngite suborbicollis 2 Ph. fulicarius 8 0 q 0 j 18 Stercorarius pomarinus 5 Calcarius lapponicus 65 Pluvialis dominica a 3 C. alpina a 13 C. mauri j 2 C. melanotos q 6 j 28 Tryngite suborbicollis 4 Ph. fulicarius 8 0 q 0 j 13 Stercorarius pom 7 Calcarius 59 The figures speak for themselves. Tryngite is now seen regularly, first encountered on the tundra 8 August. Note that part of the data summarized under transects 1-5 were actually collected 15 August (see transect accent). We are still in the throes of longspur migration. Dunlin age ratios may be shifting to something more equitable than the remarkably skewed ratio seen here before. GRIDS 2,3 15 August 0700-1100 censused both grids - an exhausting task. At least the weather was pleasant, 36°, sunny, a light breeze. GRID totals: #2 Pluvialis dominica a 1 C. alpina a 0 j 37 C. mauri j 3 C. melanotos q 8 j 9 Micropalama h. j 2 Tryngite suborbicollis 2 Ph. fulicarius 8 0 q 0 j 13 Stercorarius 6 Calcarius 39 Plectrophenax 2 #3 Pluvialis squatarola 1 C. alpina a 46 j 8 C. mauri j 0 C. melanotos q 2 j 20 Micropalama h. j 1 Ph. fulicarius 8 0 q 0 j 21 Stercorarius 2 Calcarius 17