In this essay I paint a picture rich in extrapolation
and conjecture. held in place by very few data
points and much guided by my personal unpublished
experiences. But this is the state of the art
My essay is about the ...
Parrots and parakeets (Psittacidae) are often thought of as frugivorous, and fruits are often listed as
the food of parrots observed feeding in the wild (e.g. Forshaw 1978, Parrots of the World, London,
David and Charles, ...
I would like to correct the misimpression
given by Barry J. Cipra's Research News
article (21 Oct., p. 374) that the accom·
plishmrnr of uostn, Man~, and others
in factoring a lOO·digit number somehow
threatrns thr ...
Evans, Stephen V.; Fellows, Linda E.; Janzen, Daniel H.; Chambers, John; Hider, Robert C.(1984-11-09)
A Dew Don-protein amino acid. erylkro-y-hydroxyhomo-L-arlinine has been isol8ted from seed of
Lort£iwcarpt4 cosraricmsis by exploiting its property of interacting with borate ions. For structural comparisoD1. rlveor-
h ...
Costa Rican horses ranging free in deciduous forest-grassland habitats swallow about
half of the seeds in the Enterolohilrnz c.xc/oc,clrputn fruits that they eat. and six such horses defecated
at least 9-56% of the seeds ...
The book was dedicated to Howard Sanders fi)r
his intellectual leadership in the field, an appropriate
honor, even though his influence steered
investigators toward problems of species diversity,
rather than community ...
Conserved wildlands are essential
components in a society based on sustainable development.
While conserved wildlands offer material
goods of many kinds. they are equally as important
as the living classrooms in which ...
The dry forests of Costa Rica's Santa Rosa National Park (lION lat., 0-350 m elevation, 6 mo without rain, 900-2300 mm rainl
yr) range from deciduous and 2 m tall to nearly evergreen and 30 m tall. This vegetation and a ...
Rosenthal, Gerald A.; Hughes, Charlie G.; Janzen, Daniel H.(1982-07-23)
Larvae of the bruchid beetle Caryedes brasiliensis (Bruchidae) develop
entirely within the seed of the neotropical legume DiocIea megacarpa. The seed
contains an appreciable concentration of L-canavanine, a potent ...
Ectomyelois muriscis (Pyralidae: Phycitinae) la rvae mine in the pulp of
mature and nearly mature fruits of Hymenaea courb8ril (leguminosae:
Caesalpinioideae) in Costa Rica. The moth larvae are often associated
with the ...
Wiley, John; Huffaker, C. B.; Dahlsten, D. L.; Janzen, Daniel H.; Kennedy, G. G.(1984)
This cha pter presents an overview and some specilic concepts and examples
concerning the diverse roles of insects in regulating or inl1uencing platH
populations. Also considered are some conseque nces of these ...
The dry and largely deciduous forests in Santa Rosa National Park in northwestern lowland
Guanacaste Province, Costa Rica, Central America, have a moth fauna of about 2800 species. These
moths pass the six month rain-free ...
In three fruit crops of Costa Rican lowland deciduous forest figs, the mean number of pollinating agaonid female wasps
which entered the figs was 1.07, 2.97, and 1.72 (93, 53, and 52 percent, respectively, of the figs ...