Now showing items 61-70 of 928
Demographic variation across successional stages and their effects on the population dynamics of the neotropical palm Euterpe precatoria
• Premise of the study: Environmental heterogeneity is a strong selective force shaping adaptation and population dynamics across temporal and spatial scales. Natural and anthropogenic gradients influence the variation of ...
Predictors of overall survival after surgery in gastric cancer patients from a Latin-American country
Background: Gastric cancer is one of the major causes of cancer-related deaths in several Latin-American countries, including Costa Rica. However, determinants of poor outcomes are fairly unknown for patients from this ...
Contribution to the knowledge of Costa Rican oribatid mite fauna, with supplementary descriptions of Pergalumna silvatica and P. sura (Acari: Oribatida: Galumnidae)
An annotated checklist of oribatid mites collected from Costa Rica in 2012 is provided. We have registered 10 species in 8 genera and 6 families. Archegozetes magnus, Kokoppia euramosa, Neoamerioppia cocuyana, Xenillus ...
Duckweeds (Araceae: Lemnoideae) growing on wet, vertical rocks behind a waterfall in Costa Rica, with a new country record of Wolffiella oblonga (Phil.) Hegelm.
Lentilles d’eau (Araceae: Lemnoideae) poussant sur des rochers verticaux et humides derrière une cascade au Costa Rica, avec un nouvel enregistrement pour le pays de Wolffiella oblonga (Phil.) Hegelm.
A large colony of duckweeds (Araceae: Lemnoideae) grows on the constantly wet, vertical wall of the rock shelter behind the Llanos de Cortés waterfall of the Potrero River, Guanacaste province, Costa Rica, the first such ...
Myxomycete diversity in Costa Rica
An updated analysis of myxomycete diversity in Costa Rica is provided herein as a product of an extensive data mining-based study intended to normalize the information on myxomycetes from that country. Within the context ...
Assemblages of myxomycetes associated with three different substrates affected by forest wildfires
Background and aims – In late November and early December of 2016, forest wildfires occurred over portions of the Great Smoky Mountains National Park (USA) and more than 4 000 ha were affected. Previous studies have shown ...
To be, or not to be a Stelis
Despite the availability of multiple sources of evidence and consistency in the support for a broadly circumscribed Stelis Sw. (Orchidaceae: Pleurothallidinae), some authors continue to be hesitant in its use. It is certain ...
Connecting biology, optics and nanomechanical properties in micro-wasps
Coloration in insects provides a fruitful opportunity for interdisciplinary research involving both physics and biology, and for a better understanding of the design principles of biological structures. In this research ...
Newly Discovered Natural Hosts of Tomato chlorosis virus in Costa Rica
Tomato chlorosis virus (ToCV) is an emerging whitefly-transmitted crinivirus. In Costa Rica in 2007, ToCV was detected in field-grown and greenhouse tomato (Solanum lycopersicum L.) plants causing symptoms of severe yellowing ...
Guía de los áfidos alados de Costa Rica
A guide to the winged aphids of Costa Rica
This guide is a compilation of limited morphological and biological information on the winged morphs of 60 species of aphids that have been collected in Costa Rica. It should not be viewed as a definitive taxnomic treatise ...