Field notes, v1531
Page 271
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Transcription
Pearson - 1996 bridge over the Rio Casa de Piedras. I set 46 traps alternating MS and Shermans, and Anita set 40 in MS/Serman pairs. Habitat ungrazed green grass meadows surrounded by trees and forest and containing islands of scrub such as rosa mosqueta, Berberis, chaura. Nires, some with llao llaos, a few bamboo clumps along the stream. Set until 8:30, then camped there. Many not-very-aggressive mosquitoes at dusk and persisiting through the night. Started to drizzle before 10 and continued off and on all night. 11 November - Morning broken clouds. Anita's line had 7 Akodon longipilis, 1 Geoxus, and 1 Auliscomys. (3 longi and 1 Geoxus in snap traps). My line had 6 Ako longi, 2 Aulisco, 2 Akodon olivaceus, and 1 very big Oligoryzomys. (1 Ako long, 1 Aulisco, both Ako oliv, and the Oligorzymos were in snap traps). Also many small slugs. This locality is at the southeast corner of Lago Perito Moreno, which puts it about 2 km southwest of the home and trash dump at Barrio 2 de Agosto (and across the Rio Casa de Piedras). Then delivered our catch to the 4th Sanitary Zone. Michael Christie came by at 9 p.m. with photos of various amber deposits. One crevice near the little bat cave at Laguna los Juncos (around the hill to the right) has a mouse-sized hole at the top of the amber deposit. Liz and Tony Barnosky plus 2 children plus baby-sitter arrive tomorrow. 12 November - Temp mild, mostly sunny; 40-65. Liz and Tony arrived; Christie is showing them around. Liz has permission from Ted Turner to work on Estancia La Primavera (with restrictions). 12 November - Bariloche. Overnight low 42. Another fatality from Hanta Virus. How come so many fatalities at a time when the Oligoryzomys population is so low? 13 November - Bariloche. Went out to Laguna de los Juncos to see Christie's amberat in the crevice to the right of the bat night-roosting cave. Sunny, very windy. Set 9 Shermans, 4 cage, and 2 steel traps near the crevice, then drove up to the lower end of the Canyon La Fragua. The gate to the Microwave Tower was locked, so we camped nearby between the road and the railroad. Someone has been cutting big willows there. Saw about two Condors at sunset. No hares on the road.