Field notes, v1531
Page 103
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Pearson - 1994 2 much else. The grassy clearing between the two marked clumps is still open, the big rosa mosqueta bush still vigorous. One can still see the dead remains of rosa bushes in the dense bamboo nearby. These were surely choked out by the bamboo at least 10 or 15 years ago. The carriage trails that have been kept open are now tunnels through the bamboo. The bamboo hangs over them, but has not invaded the right-of-way Even those trails abandoned have not been invaded by bamboo. Around the clearing, several young dombeyi have escaped above the bamboo. Stopped at Arroyo Casa de Piedras to clean the car. Pampa Quemada (behind the Centro Atomico) is recovering rapidly from last year's fire. There was more bamboo in there than we had realized; it has new green culms and slender yearling culms, but seems to have been heavily grazed. November 30-- Clear, sunny, warm. Drove to La Veranada and visited the two marked bamboo clumps (E2 and E3). The nire at our study area was not at all out yet, but the lenga west of the road was fresh green. Lots of somewhat old tuco mounds, and saw no tuco earth cores, but tucos are surely present. Lots of dandelions in bloom. Saw few birds. The Parkguard house at the horse pasture seemed to be occupied, but we couldnt rouse anyone. Continuing thoughts about the nire forest at La Veranada. Almost all the trees are clumps, which supports the notion that it burned and root-sprouted 40 or 50 years ago. Futhermore, almost all the nire clumps are elevated a foot or two above the ground level between clumps, and many if not most are closely associated with bamboo. And many have tuco diggings around the base. Perhaps the post-fire bamboo protected the young nire sprouts? Or the charred nire trunks protected the bamboo? Picnicked at the study area; balmy, no wind. Nice pair of wigeon at the marsh/meadow just north of the study area. Then drove down the hill to the meadow at the north end of Lago Guillermo. Here again the nire clumps are elevated, frequently associated with bamoo or with Berberis. And tucos may be present at any combination including dead nire and Berberis. Did not pass any snow all day. October 31- Bariloche. Morning overcast, temp 52. Max-min