It is ironic that about the time (1960-1980) that tropical field biology is becoming a widespread, respectable and interesting area of research, greatly increased rates of destruction of the tropics are rendering it ...

Countries reap benefits from their wildland biodiversity, but they also pay both direct management and opportunity costs to maintain it. Field research can yield major benefits, and a national system of permits for field ...

A survey of 59 species of tropical legume seeds revealed high interspecific variation in pTOlcinaccous capacity to inhibit bovine trypsin (a digesli"e enzyme) and 10 agglutinate human (type B. Rh positive) and laoorawry rabbit ...

The number of species in many groups of parasitoid Hymenoptera does not increase rapidly with decreasing latitude. Discussion of the processes generating this pattern has focussed upon changes in host demographic traits ...

In the lowland deciduous and riparian evergreen forests of Guanacaste Province, Costa Rica, the insect seed predators are highly host-specific and display a variety of traits suggesting that the ways they use hosts are ...

I've grown up on a diet of Darwin, Wallace and their cultural offspring. But I'm faced with the reality of the biology of 100 km2 of lowland dry forest (Santa Rosa National Park) in northwestern Costa Rica. Some of ...

Hylesia lineata. a hemileucinc satumiid of the Pacific side of Central America, is exceptional among the 30 species of satumiids of the de(:iduous forests of Santa Rosa National Park, Costa Rica (0-350 m elevation). It ...

If there was a crop that grew as well on tropical rainforest soils as do many crops and pastures on tropical dry forest soils, we would not have any rainforest left to argue over. This truth introduces two intense ...

Frugivory by ext~nct horses, gomphotheres, grouna sloths, and other Pleistocene megafauna offers a key to understanding certain plant reproductive traits in Central American lowland forests. When over 15 genera of Central ...

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. ...