Increasing concentrations of greenhouse gases in the atmosphere due to human activities are driving changes in global climate. The magnitude of the recent physical changes is greater than at any time during human civilization ...

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 ...

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 ...

Fire on the western forests of the United States is also very good, but contains but four short paragraphs on Alaskan forests. The chapter on forest and savanna ecosystems of Sub-Saharan Africa covers too large an area ...

Specimens of a species of cyclocoelid digenean inhabiting Jacana spinosa from the Area de Conservacio´n Guanacaste, Costa Rica, most closely resemble Haematotrephus facioi (Brenes and Arroyo, 1962) Yamaguti, 1971, in the ...

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 ...

Two new species oftineid moths discovered riding on the backs of two species of spiny pocket mice (Heteromyidae) in Costa Rica are described. Amydda sell'ae. new species, was found on Heleromys desmarestianus Gray in the ...

Pelignellus is resurrected from synonymy with Atissa and is revised. The genus and both included species—P. subnudus Sturtevant & Wheeler from the USA (California) and P. freidbergi n. sp. from Central America (Costa ...

Despite being important components in coastal marine systems, sea anemones have been poorly studied on both coasts of Costa Rica. In this paper new records of sea anemones are mentioned for the Caribbean and Pacific coasts ...

richuris guanacastei n sp., a parasite isolated from the Salvin’ spiny mouse Heteromys salvini, collected from the Guanacaste Conservation Area, Costa Rica, during February 1996 is described. The new species was compared ...