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Transcription
Pearson - 1996
17
spherical. No Phyllotis-sized droppings, but maybe
they went through the screen? We did see Phyllotis-
sized droppings yesterday while setting traps near the
dig.
Later I did 3 more vials from the "Surface". Same
diversity as before plus an Irenomys and a tuco. A
total of maybe 40 animals. Note: no Phyllotis. Liz
had separated out a vial of smallish droppings that
were Phyllotis/Euneomys size, coarse, almost lumpy.
Under the dissecting scope they contained numerous
flakes that look like chitin, plus tiny bristles, but
there were no legs or antennae or other insect parts,
and no "vegetation" such as grass or leaves. I think
they might be seed husks. But who made them?
1 December - Overnight low 53. Day sunny and warm. The
almost-sperical droppings too big in diameter for
Lagidium contain vegetable fibers, as do elongate
Lagidium-like droppings. Waiting for Sage. Christie
came by; he had been out to Liz's dig again. Our
traps held only one Akodon longipilis (10 Shermans and
2 steel traps).
2 December - Max-min 65-40. Partly cloudy. Dick Sage arrived
4 p.m. Immediately, Liz and Tony and Nadia Guthman
arrived. She had won a prize with one of her
sculptures. Her traps at El Bolson czught 7
Oligoryzomys that were positive for Hanta virus (25%
of all the Oligos), plus some Akodon olivaceus and A.
longipilis. I think the total catch was 39.
Liz and Tony report that our 10 Shermans at their
cliff caught 2 more longipilis, one Phyllotis, and one
Oligoryzomys juvenile down near their tent at one of
the Berberis clumps. One of the two steel traps set
at tuco diggings in Berberis clumps was sprung empty.
Unfortunately, they are finished working there. They
brought the live Oryz with them and left it here; the
Phyllotis got away, very lively they say, it jumped
out of the bucket, but they got photos. Said itlooked
like a woodrat.
3 December - Nadia Guthman came by. Her trapping at Lago
Puelo did indeed catch 7 Oligoryzomys positive for
Hanta, 22 other Oligos, and 10 more Akodon olivaceus
and longipilis. Her thesis committee is on hold.
We went to Chalhuaco with Dick Sage. Road and
bridges in good shape. The fire on the lower slopes
was impressive. Big areas of burned pines, some of