The aposematic larvae of the medium-sized brown weevil Phelypera
distigma feed exclusively on the new foliage of the sterculiaceous tree
Guazuma ulmifolia in the deciduous forest Pacific coastal lowlands of
Costa Rica. ...
The answer to Why do "all the good things which an animal likes
have the wrong sort of swallow or too many spikes"? (Milne, 1928) is
that the herbivores selected the plants to be that way. Given the acceptance
of this ...
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 ...
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 ...
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 ...
E., Arthur Bell; M., Yasin Qureshi; Pryce, Robert J.; Janzen, Daniel H.; Lemke, Paula; Clardy, Jon(1979-06-25)
A new acidic amino acid, 2,4-methanoglutamic acid, containing a cyclobutane ring and a new imino acid, 2,4-methanoproline,
containing the previously unknown 2-azabicyclo[2.1.I)hexane system have been isolated from seeds ...
Los primates constituyen el grupo de mamíferos arbóreos mas grande y numeroso del Nuevo Mundo. En algunos bosques tropicales ellos son los principales vertebrados frutiboros y foliboros que represen tan a una significativa ...
Since 1961 a series of field biologists and field ecology courses have used the lowlands
of Guanacaste Province, Costa Rica, as a natural laboratory. With the firm establishment
of Santa Rosa National Park and various ...
It's long been the subject of discussion in bars, bedrooms, and backyards, but it's time to
get it out in the open where it begins to have an effect on the explicit decision-making process.
We are producing far too many ...
During the first 2 months of the rainy season, small terrestrial rodents
(Liomys salvini, Sigmodon hispidus, Oryzomys fulvescens) were lietrapped
in the 11 largest habitats in Santa Rosa National Park, Guanacaste
Province, ...
Janzen, Daniel H.; DeVries, P.; Gladstone, D. E.; Higgins, M. L.; Lewinsohn, T. M.(1980)
The epiphytic deciduous forest orchid Encyclia cordigera was manually self-pollinated, out-crossed against one other parent,
and out-crossed against a maximum number of other parents in Santa Rosa National Park, Costa ...
(1) The deciduous forests and the riparian evergreen vegetation that they include
in the lowlands of Guanacaste Province, Costa Rica, contain at least 975 species of
dicotyledonous plants. At least 110 species of beetles ...
EI arbusto conocido en la costa tropical del Golfo
de MexiCo con el nombre comun de "cornizue-
10" (Acacia cornigero y Acada sphaerocephala) {fi;. ,
gura J)es una mafeza indeseable y rrluy abudante
en los potreros. En ...
Janzen, Daniel H.; Doerner, S. T.; Conn, E. E.(1980-01-16)
The HCN content of dried Acaciafarnesiana foliage varies from 0.0 to 5.495 tlmol/g among individuals within a
population (XC = 1.80, s.d. = 1.80 in wet season; X = 1.21, s.d. = 1.27 in dry season; n = 26) and increased ...