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Transcription
Pearson - 1994
22
November 10- SAREM meeting in Cordoba. Luz Gonzales from
Validivia told Anita about the cana quila flowering at
their study area near San Martin. There was indeed a
ratada, but Oryzomys was the only species that
increased. Normally they reach a max of 60/ha, but
they reached 200/ha. She said they were transients
and that they ate water pipes, kitchen supplies, etc.
They were much larger than usual; usually about 28g,
but many were 70-75g. The flowering began in 1992; in
January 1994 there were 53 million seeds per ha, 60-
80% of them viable. In February 1994 there was a storm
and after that all seeds were infertile (floated in
water).In March and April the mice appeared.
Unfortunately, Pedro, her native field assistant, broke
his leg and was unable to help document everything.
December 14- Chile. The uppermost clumps of quila, above the
Chilean Aduana, are dead, and have many seedlings
under them; maybe 20 per m2. All these seedlings are
of minimum size, 3 or less leaves. Farther down the
hill, almost all the quila along the road is dead. We
found a few clumps that had neither bloomed nor died.
Oe was almost dead, had some clumps of green/brown
leaves which with binoculars looked like flowering
heads or seed heads high up. A Phrygilus was feeding
on them. Saw one flock of parrots at Aguas Calientes,
and a flock of Araucanian pigeons along the road a few
km east of Termas de Puyehue.
Everyplace we stopped we found seedlings under
the dead quila. Sizes varied from brand new (only one
minileaf) to three culms of graded diameter
(presumably three ages ?years?). The masses of dead
culms and branches are a real mess, very difficult
to walk across, splendid cover for mice. Saw no mice,
nor raptors other than caracaras.
In the forest at Aguas Calientes were numerous
branched bamboos (species?) that had not bloomed. The
other species of bamboo had not bloomed; we saw no
bloom on non-quila species. A paisana whom we picked
up said that the quila blooms every 30 years.
By chance we met at Aguas Calientes the New
Zealand television crew (Crispin Sadler) who were
filming bamboo, mice etc.
December 17- Visited the bamboo at Pampa Quemada. Clumps
that burned in the fire two years ago have green culms
a meter or more tall, very leafy right down almost to