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Algunos Detalles Ultraestructurales de la Morfología Externa del Adulto y la Deutoninfa de Allonothrus neotropicus1 en Costa Rica
Some Ultrastructural Details of the External Morphology of the Adult and Deutonymph of Allonothrus neotropicus1 in Costa Rica
(2017-09)
Se analiza la ultraestructura de Allonothrus neotropicus con ejemplares
recolectados en hojarasca de suelo de la región Caribe de Costa Rica. Los
caracteres que definen esta especies son: 1) seta e1 el doble de larga que ...
Neuropsychological Test Performance in Cognitively Normal Spanish-speaking Nonagenarians with Little Education
(2016-06)
To find associations of age, sex, and education with neuropsychological test performance in cognitively normal Spanish-speaking Costa Rican nonagenarians with little education; to provide norms; and to compare their ...
Conservación de orquídeas en una reserva privada de Palmares, Costa Rica
Orchid conservation in a private preserve at Palmares, Costa Rica
(2016-12)
Madre Verde Private Preserve, located in Palmares (Alajuela, Costa Rica) protects a forest relict surrounded by pastures, bushes and abandoned agriculture grounds. An inventory was conducted in this preserve to determine ...
Relaciones hídricas en árboles del bosque tropical seco: el caso de Enterolobium cyclocarpum
(2011)
Las relaciones hídricas en árboles de Enterolobium cyclocarpum del Parque Nacional Santa Rosa, Costa Rica,
se estudiaron en diferentes momentos del curso diurno y a lo largo de dos ciclos fenológicos. La característica ...
Observations on the ultrastructure and hydrophobicity of the wings of thirteen Neotropical families of diptera (insecta) with comments on their flight
Observaciones sobre la ultraestructura y la hidrofobicidad de las alas de trece familias Neotropicales de diptera (insecta) con comentarios sobre su vuelo
(2015-11)
Insects' wings are complex surfaces that have become a new field to study towards the design of flying devices and hydrophobic surfaces. Several orders and families of insects have been analyzed for their hydrophobic ...
Abundance of Petrolisthes armatus (Crustacea: Porcellanidae) on a tropical estuarine intertidal rocky beach, Gulf of Nicoya estuary, Costa Rica
(2016-09-22)
Se estudió, de diciembre de 1997 a noviembre de 1998 (14 fechas), la población del cagrejo porcelánido Petrolisthes armatus en dos sitios en una playa rocosa de entre mareas en el Golfo de Nicoya, costa pacífica de Costa ...
Primera cita de Frankliniella grandecuriosa Johansen 1998 (Thripini: Thripinae: Thripidae) fuera de México
First record of Frankliniella grandecuriosa Johansen 1998 (Thripini: Thripinae: Thripidae) outside Mexico
(2015-08-28)
Se presenta el primer informe de una especie del grupo Frankliniella curiosa en Costa Rica. Se han recolectado recientemente dos especímenes de esta especie en la inflorescencia de una especie no determinada de Ageratum ...
Two new species of Graphocephala Van Duzee from Costa Rica (Cicadellidae: Cicadellinae)
(2006-08)
The genus Grahocephala, which was described by Van Duzee (1916), is a large complex group distributed from southern Canada to Colombia, Venezuela, and French Guiana. Young (1977) revised the genus and described twelve new ...
Rediscovering the value of families for psychiatric genetics research
(2018-06-28)
As it is likely that both common and rare genetic variation are important for complex disease risk, studies that examine the full range of the allelic frequency distribution should be utilized to dissect the genetic ...
What can myxomycetes tell us about floricolous microbial systems?
(2017-02)
The study described herein was conducted in Costa Rica in an effort to generate baseline data on the association between tropical inflorescences and a group of microorganisms known as myxomycetes. The assemblage structure ...