Pearson - 1988 37 paved. No access to our former campsite, so camped a few hundred meters north of it in nire parkland. The nire leaves are not out at all on most of the trees, and the grass etc. is winter brown. \no dandelions. This locality is 43 km SSW Bariloche, 1030 m. at 4 p.m. I put out 29 Shermans baited with rolled oats alternating with 29 Museum Specials baited with corn meal. All in bamboo/nire and bamboo/lenga along the woodcutters road on the west side foi the highway, south of our grid. Good rich ceover, patches of snow, 4 horses. Anita put out 26 Shermans and 18 MS near camp in nire/bamboo parkland. Then we located the two marked bamboo clumps. One of them had NO yearling canes. The other had a number of yearlings but most of them damaged at the tip. October 26- La Veranada. Night mostly clear, cold. Teapot in tent frioze, not solid. Heard tero-teros during the night and, incredibloy, frogs calling- with the temperature far below freezing. My 58 traps through nire/bamboo and lenga/bamboo forest caught only one mouse, an Ako longipilis. Anita's 44 traps in nire/canya,scrub parkland near camp caught one Auliscomys, 1 Oryzomys, and two Ako longi. Marked bamboo clump E3, the new one situated along the path behind where we used to camp (but noi longer accessible from the highway). That clump produced about 78 new shoots last spring and summer, but only three of them have survived to healthy yearling status. Most died as 6 to 8-inch shoots; some died as bigger shoots but with the tip dead, and some survived to more than 1 m tall but with the tip dead. Between two-thirds and three- quarters of the short shoots had been attacked by boring parasites, and many of the remainder may have been attacked also but I could no longer be sure of the evidence. Almost all of the taller shoots with dead tiups had been attacked by boring parasites. Wouldn't it be nice if heavily parasitized clumps could give off a pheromone that would alert neighboring clumps to an intolerable parasite load, and that this could lead to mass flowering? Afternoon clouded over, but warmer. I picked up half my line in tyhe woods and put it in bamboo/bushy parkland near our old campsite, plus a dozen traps out in bamboo/bush islands out in the open meadow. October 27- La Veranada. Night much warmer, partly overcast. Heard frogs and tero-teros again. My remaining half trap line in the woods had nothing, and the line in islands of bamboo in the meadow had nothing. The new line in brushy places near our old campsite had 1 Auliscomys and 3 Ako longi. Anita's line had 1 big Auliscomys. Total traps out about 104. Lots of hare droppings but we don't see hares-but haven't been night hunting. Horses, but no sheep or cows. Nire leaves not out yet, a couple of dandelions. Something nips off terminal twigs of sapling sized nire (but not old nire). Sometimes 6 feet high in the middle of a clump, so not horses or hares standing on snowcover. Maybe Auliscomys? The biggest cut twig was