Biología
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Búsqueda y caracterización de proteínas biopesticidas novedosas a partir de cepas de Bacillus thuringiensis
(1999)En la actualidad se desarrollan y se cultivan comercialmente plantas transgénicas que expresan endotoxinas de Bacillus thuringiensis (Bt) como biopesticida para el control específico de insectos. Sin embargo, se teme que ... -
Connecting biology, optics and nanomechanical properties in micro-wasps
(2020)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 ... -
Phenology of an urban population of Lyssomanes jemineus Peckham & Wheeler (Araneae: Salticidae) with a list of other jumping spiders from the same Costa Rican site
(2019)Jumping spiders were sampled for 24 months in a Costa Rican urban environment and one of the species collected, Lyssomanes jemineus, was observed in detail in order to document its phenology in this disturbed habitat. ... -
Plantas del Dosel del Bosque: Guía para la identificación de géneros de plantas epífitas con flores de Costa Rica
(2020-01-31)Plantas del Dosel del Bosque es una guía botánica que ofrece información sobre las “plantas epífitas”, que son aquellas plantas que se han especializado en vivir sobre otras plantas y se han independizado de las condiciones ... -
Soybean protease inhibitors increase Bacillus thuringiensis subs. israelensis toxicity against Hypothenemus hampei
(2020)The coffee berry borer (Hypothenemus hampei Ferrari, CBB) is one of the most devastating pests on coffee plantations around the world. Although CBB is susceptible to the effect of δ–endotoxins ... -
Contact calling in context: intra- and intergroup variation in vocalization rates depend on a call’s function
(2020)To maintain group cohesion while coordinating group movements, individuals might use signals to advertise the location of a route, their intention to initiate movements, or their position at a given time. In highly mobile ... -
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 ... -
Caracterización de los conflictos humano-felinos y otras especies silvestres en el área de amortiguamiento de la Reserva Biológica Alberto Manuel Brenes, 2017-2020
(2020)El aumento de la población humana ha ejercido presión sobre los recursos naturales razón por la cual fue necesario el establecimiento de áreas protegidas para conservar la biodiversidad. Sin embargo, cuando hay traslape ... -
Morfología, ecolocalización y uso de micro-hábitat de murciélagos del género Pteronotus (Chiroptera: Mormoopidae) en el Parque Nacional Barra Honda, Costa Rica
(2020)En el trópico hay una gran riqueza de especies de murciélagos insectívoros y esta riqueza se mantiene, en parte, por el reparto eficiente de los recursos ambientales. Estudios sobre la repartición de recursos entre los ... -
Myxomycetes collected in the eastern United States and patterns of relative biodiversity
(2020-01-05)A total of 68 315 digitised records of myxomycetes from the eastern United States were compiled from all readily available sources. After cleaning the database for inconsistencies, 58 594 records remained that were ... -
New insights into the molecular phylogeny of the swimming crabs of the genera Portunus Weber, 1795 and Achelous De Haan, 1833 (Brachyura: Portunidae) of the Americas
(2018)Earlier studies of swimming crabs (family Portunidae) in the Americas suggested polyphyly of Portunus Weber, 1795. Our previous molecular analyses provided evidence for a subdivision of the genus, resulting in a reassignment ... -
Seagrass organic carbon stocks show minimal variation over short time scales in a heterogeneous subtropical seascape
(2018)Blue carbon initiatives require accurate monitoring of carbon stocks. We examined sources of variability in seagrass organic carbon (Corg) stocks, contrasting spatial with short temporal scales. Seagrass morphology and ... -
ICSEM10 Slideshow
(2020-03-03)This is a slideshow produced for the 10th International Congress on the Systematics and Ecology of Myxomycetes, held in the city of Turrialba (UCR, Sede del Atlántico) in February 2020. -
The new Refugium Botanicum. Maxillariella (Maxillaria) tenuifolia
(2017)Maxillariella tenuifolia (Lindl.) M.A. Blanco & Carnevali, Lankesteriana 7(3): 530. 2007. Basionym: Maxillaria tenuifolia Lindl., Edwards’s Botanical Register 23: sub. t. 1986. 1837. Type: “a native of ... -
The New Refugium Botanicum. Guarianthe skinneri
(2017)Guarianthe skinneri (Bateman) Dressler & W.E.Higgins, Lankesteriana 7:38 (2003). Basionym: Cattleya skinneri Bateman, Orchid. Mex. Guat. 1839. Type: Habitat in Guatemala, G. Skinner s.n. (holotype, K). Epiphytic, ... -
The new Refugium Botanicum. Trigonidium lankesteri
(2017)Trigonidium lankesteri Ames, Schedulae Orchidianae 5: 32–34. 1923. Maxillaria luisae Molinari, Richardiana 15:302. 2014 [2015]. Type: Costa Rica: Las Cóncavas, in cultivation, February 1923, C.H. Lankester 367 ... -
Masdevallia luerorum (Orchidaceae: Pleurothallidinae), a new species from Costa Rica
(2017)Masdevallia luerorum from the southern Pacific region of Costa Rica is described and illustrated. It resembles M. lata, but differs in the single flowered inflorescence, the shorter sepals, the broad and cylindrical sepaline ... -
Two novelties in genus Platystele (Orchidaceae: Pleurothallidinae) from Costa Rica
(2017)Two new species of Platystele allied to P. oxyglossa complex are described from Costa Rica. Platystele carl-lueriana can be distinguished from P. catiensis and P. oxyglossa by the compact inflorescence that barely exceeds ... -
Genera Pleurothallidinarum: the era of Carlyle Luer
(2017)The era or Carlyle Luer, which currently comprehends the forty-two years since the publication of the first Icones Pleurothallidinarum in 1975, has witnessed a true revolution in the knowledge and understanding of the ... -
Novelties in Costa Rican Stelis (Orchidaceae: Pleurothallidinae): two new species and a new record in the "Dracontia group"
(2017)Stelis dies-natalis and Stelis aenigma, belonging to a group of mostly Middle American species alternatively placed in genus Dracontia, are described and illustrated based on living material. They were both ...
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