Argentina field notes, v1530
Page 27
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Transcription
He has only been on the Estancia for a year or two, but says he has never seen viscachas on the estancia (but there were viscacha droppings at the cave higher up where Michael found amber 1st year). Summary on the cave: Lots of viscacha droppings (only) in the upper cave, but no amber up there, hence viscachas probably not responsible. Lower cave is good habitat for Phyllotis, but in all the other localities where we have found Phyllotis we have never found amber. If there were something special about the vegetation eaten by the responsible animal at La Primavera, it might account for the amber, but the vegetation is just the same as in many other places in the precordillera. Lorenzo says his sister lives on an estancia on the Pichi Leufu River and that she has seen similar amber in caves there. November 5- Bariloche. Errands around town and visited with Michael Christie, Cacho Carranzo, Eddie and Barbara Rapaport, and the Flueks. 41 degrees overnight. November 6- Drove to La Veranada and measured bamboo. Lupines not yet blooming, Scotch broom in early bloom, some Berberis darwinii. The nire leaves at La Veranada are mostly out. Day sunny, fresh. Heard chucas at the bamboo area and saw a Scytalopus. About 5 horses grazing there. November 7- Bariloche. Minimum temperature on our balcony overnight was 40 F; light frost on car out front. November 9- Bariloche. Sunny and fresh. Gave talk at Woodville School. Gave a Sherman trap to one eager boy: Antonio Balseiro. Cohen's son is headmaster. Graham Harris's book on birds of Patagonia is in press in Chile. Puttered with printers and finally got one working. November 10- Left after lunch for Rio Pichi Leufu. Stopped at a cliff about 4 km before the river and found lots of viscacha scats, some Buneomys scats. No real caves, but overhangs and small dry places under big rocks. No sign of amber. Numerous big (up to 2 m tall) ?Ephedra bushes (check identification), plus calafate, neneo, Senecio, and bunchgrass. Then drove north on the dirt road that goes down the river on the east side. Looked at a few cavey places, abundant viscacha droppings, no amber. Stopped at a long cliff 12km by road north of the bridge on Route 23. I set 25 big Shermans and 2 steel traps along the base of the cliff; lots of bushy vegetation and bunchgrass such as calafate, palo pichi, baccharis, much like Cerro Leones. Lots of viscacha droppings; Buneomys droppings in a few places. Clear cold and windy. Anita set 19 traps along the cliff and under boulders. Camped on a ridge about a km NE. November 11- 12km by road N bridge over the Rio Pichi Leufu. Night clear, temp. 32F. Morning sunny. Nothing in Anita's traps, only two Phyllotis in mine. Could see mouse footprints in the desert at various places. Saw one viscacha up on the skyline above the trap line, and another along the main road where we had stopped yesterday. Almost every rocky place where we