Alaska field notes, v4438
Page 217
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
SP Myers 1986 Journal Grid 2, NAKL, Barrow, Alaska 16 June On the Barrow tower at last! I've spent the last two days inside working on Atkaskool Tryngity notes.. This am @ 0830 went to Grid 2 in order to work on Celidris melanotos. Remain on G-2 out/ 1430, then walked to Gy, then back to NAKL @ 1630. Weather spectacular. 32°@ 0500 (up @ 0300 to finish notes). Light NW wind. 8 clouds. The melanotos scene, however, was a big disappointment, with few PP and fewer PP on the grid and elsewhere. See melanotos sp acct. 17 June Up at 0930 and on Grid2 by 0445. See melanotos sp account- Weather belong - almost no wind and until 1100 no clouds. Temp 34°-38°F. I censured the grid through the day from 0445-1330, then returned to camp. The morning began with a bit of drama as I found 3 different jaegers eating 3 different shorebirds: 1 S. pomarinus eating either a C. melanotos or a C. bairdii (it flew off with its prey) and 2 S. parasiticus, one with a C. pusilla and the other a C. melanotos. Yesterday we watched a S. parasiticus eat a C. calpinna. Today McLaffing saw an S. parasiticus catch and eat a P. fulicarius. It's not a safe place to be a shorebird on the tundra. Two nests found yesterday on Grid2 were torn around by jaegers in the intervening time: that of an Arctia acuta and a Calcarius. It looks as if the jaegers are turning to birds. I should note that the lemmings picture is rather spotty: a few places have dreary, complete grazing, spread over 0.25 ha or more. But most coting involve a few square m, at most a radius of 5m. Winter nests are spotted throughout the tundra. Thus there were lemmings around but they have crashed from whatever density they attained. The jaeger scene reflects that: at least one pair of S. parasiticus is defending near Grids 1 & 2, but there is also a S. pomarinus defending also. Further, there seems to be a single light-phase S. pomarinus defending a small area on Grid 7. Finally, Asofleummus continues to abound. One or two hunted near Grid2 all day long.