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 ...
The percent seeds killed by pollinating agaonid wasps and their associated parasitic Hymenoptera in four species of Cos~d
Rican deciduous forest fig trees averaged 41 to 77 percent in nine samples. No fig fruits lost less ...
A weight-loading machine was used to measure the force required to break
mature seeds of Enterolobium cyc!ocarpum. The force required to break
the seeds increases with increased weight of the seed, and seeds on the ...
Seigler, David S.; Conn, Eric E.; Dunn, John E.; Janzen, Daniel H.(1979-01-06)
Among the mimosoid legumes, few species exhibit the
systematic complexity of Acacia farnesiana (L.) Willd.
This widespread assemblage of species or microspecies is
probably native to the Americas [1-3] and has ...
A park whose flora and fauna are unkno ..... n and
uncataloged can be compared to an excellent li brary
whose books have no titles. no authors, and
no call numbers. This is one of the primary reasons
why Winnie HaJ1wachs. ...
When four 400-fruit crops and one 5000-fruit crop of Enterolobium cyclocarpum
(Leguminosae) were presented to 17 range horses in the
early rainy season in a 10 ha pasture in the deciduous forest lowlands of
Pacific ...
Five large branches of a Cassia grandis tree were deflowered in its
flowering year; the consequence was that 10-20 percent of the floweringfruiting
capacity of the tree's crown was offset by one year from the
tree's ...
I hypothesize that, for a number of species of small-seeded herbaceous plants, a
normal and selected for mode of seed dispersal was through consumption of the
seeds by large herbivores while they were eating the foliage ...
The large ungerminated seeds of guanacaste (Enterolobium cyclocarpum) and cacao trees (Cassia grandis) , and plastic
buttons, were fed to a captive adult male Costa Rican Baird's tapir (Tapirus bairdi) in artificial fruits, ...
In June-July 1979, in Santa Rosa National Park, Costa Rica, a Catasetum maculatum orchid produced two
successive five-flowered female inflorescences and attracted at least 407 male Eulaema polychroma o¥er 59
flower days; ...
Two female Costa Rican range cattle were fed 961 and 1407 large hard dormant
seeds of the guanacaste tree Enterolobium cyclocarpum. Of the 823 and 1111 hard
dormant seeds defecated, 66 and 86% had emerged by the end of ...
WHEN a seed germinates, we expect the defensive secondary
compounds it contains to be transferred intact to the growing
seedling, or variously decomposed to produce resources for the
growing seedling. The seeds of wild ...
I intrude in your institutional affairs, but
I come in the cause of tropical. biology, and
as a concerned user of the facilities of the
Department of Entomology of the U.S. National
Museum (USNM) for over 30 years.
I ...
Dr. Daniel Janzen is one oflhe world's authorities on
tropical forests. A professor of ecology at the VnilJersity
of Pennsylvania, Janzen has spent six months of every year
for the past 30 years studying the intricate ...