Biología
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Caracterización molecular y bioquímica de mutantes M3 de arroz (Oryza sativa indica L. VAR. CR5272) en condiciones de estrés salino
(2019)El arroz es un cultivo de gran importancia a nivel mundial, ya que es la base de la alimentación de 2/3 partes de su población. En Costa Rica este grano representa el 20 % de la ingesta calórica diaria, por lo que es ... -
Diurnal changes of photosynthesis and growth of Arthrospira platensis cultured in a thin-layer cascade and an open pond
(2017)Diel changes in photosynthetic performance and biomass productivity were thoroughly examined in Arthrospira platensis cultures grown outdoors in an open circular pond (OCP) and a thin-layer cascade (TLC). The two cultures ... -
Characterization of the Skin Microbiota of the Cane Toad Rhinella cf. marina in Puerto Rico and Costa Rica
(2017)Rhinella marina is a toad native to South America that has been introduced in the Antilles, likely carrying high loads of microorganisms, potentially impacting local community diversity. The amphibian skin is involved in ... -
Ecology, health and genetic characterization of the southernmost green turtle (Chelonia mydas) aggregation in the Eastern Pacific: implications for local conservation strategies
(2017)Bahía Salado, located in northern Chile (27°41’S, 70°59’W), is the southernmost foraging ground for the endangered green turtle (Chelonia mydas) in the Eastern Pacific Ocean (EPO). To date, almost no information exists ... -
Modelo de estrategia de sostenibilidad para reservas naturales privadas. Estudio de casos en el cantón de San Ramón, Alajuela, Costa Rica. 2018-2019
(2019)Aunque Costa Rica posee alrededor de un 52,4% de su territorio de cobertura forestal, solo el 25,4% se encuentra bajo alguna categoría de manejo de Áreas Silvestres Protegidas (Sinac, 2018), es decir, solo cerca de la mitad ... -
Connectivity, population structure, and conservation of Ecuadorian green sea turtles
(2017)Studies of highly migratory species that increase our understanding of the dynamics of genetic diversity, migratory routes, and genetic connectivity are essential for informing conservation actions. Genetic data for green ... -
Genome-wide QTL analysis for anxiety trait in bipolar disorder type I
(2017)Background Genetic studies have been consistent that bipolar disorder type I (BPI) runs in families and that this familial aggregation is strongly influenced by genes. In a preliminary study, we proved that anxiety trait ... -
A Mesoamerican origin of cherimoya (Annona cherimola Mill.): Implications for the conservation of plant genetic resources
(2017)Knowledge on the structure and distribution of genetic diversity is a key aspect to plan and execute an efficient conservation and utilization of the genetic resources of any crop as well as for determining historical ... -
Observations on the breeding behaviour of Snowy Cotinga
(2016)Tres nidos de la Cotinga Nivosa Carpodectes nitidus muestran un diseño muy simple, que consiste en una plataforma construida de ramitas y zarcillos, similar al descrito previamente para esta especie y para otras cotingas. ... -
Latrodectism in Costa Rica
(2017)Se reporta un accidente causado por la araña Latrodectus geometricus, incluida en el grupo conocido como “viudas negras”, en Costa Rica. El accidente le ocurrió a una mujer de 27 años vecina de la ciudad de Cartago, en su ... -
Comparación del peso de diferentes tipos de plumas entre cinco especies de aves del páramo de Chirripó, Costa Rica
(1993)Plumage weight was compared in highland and wide-range bird species (N= 18 weight samples): Sooty Robín (Tutdus nigresce/lS). Rufous-collared Sparrow (Zonotrichia cape/lSís), Volcano Junco (íunco vulcani), Slaty Flowerpiercer ... -
First description of the nest and eggs of the Sooty-faced Finch
(1994)Sooty-faced Finches (Lysurus crassirostris) occur in dense undergrowth of wet forests that border streams along the Caribbean slope of Costa Rica between 600 to 1500 m in altitude. Its distribution is from Cordillera de ... -
A new subspecies of Black and Yellow Silky Flycatcher, Phainoptila melanoxantha^
(2000)in Costa Rica. In some middle and highlands the abrupt topography delayed the complete destruction of mon- -
Mating and aggressive behaviour of Brachyrhaphis olomina (Cyprinodontiformes: Poeciliidae)
(2017)Despite the increasing interest in the use of intro-mittent male genitalia and coercive mating behaviour in poeciliids, detailed studies of the mating behaviour of most species in this family are lacking. We describe here ... -
Reproducción, uso de habitat e historia natural del Capulinero negro y amarillo (Phainoptila melanoxantha), una especie endémica de las tierras altas de Costa Rica y oeste de Panamá.
(2002)Estudiamos la abundancia relativa, distribución geográfica, dieta y reproducción del Capulinero negro y amarillo (Phainoptila melanoxantha), una especie endémica a las tierras altas de Costa Rica y oeste de Panamá. A lo ... -
Seed dissemination by frugivorous birds from forest fragments to adjacent pastures on the western slope of Volcán Barva, Costa Rica
(2002)Logging, cattle raising, and agricultural activities have caused the destruction of most forested áreas in Costa Rica. In some middle and highlands the abrupt topography delayed the complete destruction of montane forest. ... -
First Breeding Record of Wilson’s Plover (Charadrius wilsonia) from the Pacific Coast of Colombia
(2004)Wilson’s Plover (Charadrius wilsonia) occurs year-round along the Caribbean and Pacific coasts of Colombia. The species frequents a variety of coastal habitats including sandy beaches, tidal flats, and small swamps and ... -
Distribución, ecología y conservacion de la avifauna de la cuenca del río Savergre, Costa Rica
(2004)Presentamos en este trabajo información sobre la riqueza, distribución y patrones de endemismo de la cuenca del río Savegre. Adicionalmente, incluimos información general sobre la dieta, condición (ej., residente o migratoria) ... -
Environmental rugosity, body size and access to food: a test of the size-grain hypothesis in tropical litter ants
(2004)In terrestrial walking organisms, long legs help to decrease the cost of running, allowing animals to step over environmental interstices rather than walking through them. However, long legs can complicate the infiltration ...
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