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Natural History and Larval Behavior of the parasitoid Zatypota petronae (Hymenoptera: Ichneumonidae)
(2007)
The koinobiont ectoparasitoid Zatypota petronae Gauld (Ichneumonidae) parasitizes medium-sized immatures of the cobweb spider Theridion evexum Keyserling (Theridiidae). Zatypota petronae apparently attacks the spider inside ...
The New Refugium Botanicum. Grammatophyllum multiflorum
(2017-05)
The new Grammatophyllum multiflorum species is described and illustrated.
Distribución del psílido asiático de los cítricos (Diaphorina citri Kuwayama) en Costa Rica
Distribution of Diaphorina citri Kuwayama in Costa Rica
(2007-08)
El insecto plaga Diaphorina citri es vector de la enfermedad de los cítricos conocida como “Huanglongbing”. Esta enfermedad, causada por una bacteria limitada al floema, llamada Candidatus Liberibacter, es de gran importancia ...
Patrones de coloración en Hymenoptera: su origen, evolución y posible función en miras a la aplicación biomimética
(2020-04-28)
El presente estudio proporciona la primera caracterización física y funcional del patrón negro-naranja-negro (BOB) que se encuentra en avispas parasitoides de muy pequeño tamaño (3-10 mm). Aunque se había reportado previamente ...
Lack of early inbreeding depression and distribution of selfing rates in the neotropical emergent tree Ceiba pentandra: Assessment from several reproductive events
(2015)
Premise of the study: Selfing and mixed mating systems are prevalent in many flowering plants. Purging of genetic load can occur in these species, reducing negative effects of selfing. Long‐term studies of the temporal and ...
Light Reflection by Cuticles of Chrysina Jewel Scarabs: Optical Measurements, Morphology Characterization, and Theoretical Modeling
(2016)
Cuticles of some Chrysina scarabs are characterized by flat, graded, and twisted structures of nanosized chitin fibrils. As inferred from SEM images, each species has its own spatial period or pitch P which is dependent ...
Cambios climáticos proyectados de modelos CMIP5 en La Cruz, Guanacaste, Costa Rica
Projected Climate Changes of CMIP5 models in La Cruz, Guanacaste, Costa Rica
(2021)
Introducción: La Cruz está localizada en el noroeste de
Costa Rica, y está caracterizada por una estación seca
bien definida y un clima tropical seco. Este cantón en los
últimos 45 años ha reportado impactos de eventos ...
Arabidopsis Qc‑SNARE genes BET11 and BET12 are required for fertility and pollen tube elongation
(2015-10-01)
Pollen tubes are rapidly growing specialized structures that elongate in a polar manner. They play a crucial role in the delivery of sperm cells through the stylar tissues of the flower and into the embryo sac, where the ...
Algunas características de la estratósfera sobre Mesoamérica
(2001)
Usando las variables de viento y temperatura de 94 estaciones aerológicas del conjunto de datos Comprenhensive Aerological Reference Data Set (CARDS) se estimaron estadísticos relativos a la Oscilación Cuasi Bienal (OCB) ...
A review of eastern tropical Pacific oceanography: Summary
(2006)
The collection of articles in this volume reviewing eastern tropical Pacific oceanography is briefly summarized, and updated references are given. The region is an unusual biological environment as a consequence of physical ...