• Parametrización de modelo hidrológico para el acuífero costero Huacas Tamarindo, Santa Cruz Guanacaste, Costa Rica 

  Gómez Solís, William; Bautista Solís, Pavel; Suárez Serrrano, Andrea; Alfaro Chinchilla, Carolina; Hidalgo León, Hugo G.; Alfaro Martínez, Eric J.; Ramírez Chavarría, Roberto (2020-11-19)

  Uno de los principales elementos para el progreso de una región es el recurso hídrico, ya que es el servicio ecosistémico base para el desarrollo de la vida y las actividades socioeconómicas. Uno de los principales retos ...

• Diversidad de libélulas (Insecta: Odonata) en ambientes lénticos con diferente grado de alteración antropogénica 

  Román Heracleo, Jareth (2019-08-10)

  Costa Rica es el país centroamericano donde mejor se conoce la fauna de libélulas (Insecta: Odonata). Sin embargo, los estudios han estado enfocados principalmente en ambientes lóticos, generando un vacío de información ...

• Effect of temperature on the visual displays of the Jacky dragon 

  Barquero Arroyo, Marco David; Peters, Richard; Whiting, Martin J. (2019)

  In ectotherms such as lizards, temperature is a key determinant of their behavior and their ability to signal to conspecifics. We asked whether changes in the thermal environment along the distribution of an agamid lizard, ...

• Ley de grandes números en medio ambiente aleatorio 

  Acuña Larios, Jennifer (2020)

  Las condiciones (T)γ,γ ∈ (0,1) introducidas por Sznitman en 2002 tienen un significante impacto en el estudio de caminatas aleatorias sobre medios aleatorios (RWRE) . Este tipo de caminatas modelan, por ejemplo, el movimiento ...

• Patrones de vocalización durante interacciones sociales de Rhynchonycteris naso (Chiroptera:Emballonuridae) en Costa Rica 

  Barquero Villalobos, Karla Susana (2020-11-17)

  Las señales vocales en el estudio de la comunicación animal tienen un potencial para transferir información que puede ser evaluado a través de sus características físicas (Kazial y Masters 2004), las cuales convergen en ...

• Parte prima a p del esquema fundamental en grupos sobre anillos de valuación discreta 

  Calvo Monge, Jimmy José (2020-11-17)

  Si X es un esquema propio, suave y conexo sobre Spec(R), para R un anillo de valuación discreta completo, dotado de una sección x: Spec(R) -> X, es posible construir los esquemas fundamentales en grupos pi_1(X,x) y ...

• Proyección de cambios en la disponibilidad de agua para usos productivos, causados por el Cambio Climático y los usos futuros, en la cuenca del río Lempa 

  Cornejo Hernández, Guillermo Arturo (2020)

  El Corredor Seco Centroamericano es una eco-región que se caracteriza por contar con un período seco de tres a seis meses de duración, lo que produce importantes cambios de disponibilidad del recurso hídrico en los cuerpos ...

• Myxomycete colonization on translocated and non-translocated dead leaves from temperate and tropical forests 

  Rojas Alvarado, Carlos Alonso; Stephenson, Steven L.; Rojas Camacho, Pedro Antonio (2020-11)

  Samples of dead leaves on the forest floor were collected from a locality in central Costa Rica and another locality in northwest Arkansas in the United States and then were placed in fine-mesh nylon bags, autoclaved and ...

• Comparative analysis on datasets of myxomycetes associated with boreal, temperate and tropical regions of North America 

  Rojas Alvarado, Carlos Alonso; Stephenson, Steven L. (2020-10)

  Datasets from boreal (Denali National Park, United States), temperate (Great Smoky Mountains National Park, United States) and tropical (La Selva Biological Station, Costa Rica) regions of North America were subjected ...

• Myxomycetes within ecotones in temperate and tropical forests 

  Rojas Alvarado, Carlos Alonso; Valverde González, Randall; Somerville, Stephanie; Rollins, Adam W.; Stephenson, Steven L. (2021)

  Ecotones are interesting portions of forests where microorganisms can be studied for monitoring and diversity purposes. Given the faster life cycle of these organisms, their study in such a context is important to develop ...

• Sexual size dimorphism and ecomorphology of the Berthold’s bush anole (Polychrus gutturosus) in Costa Rica: Preliminary data 

  Arguedas Porras, Viviana; Barquero Arroyo, Marco David; Arguedas Porras, Randall; Ovares Campos, Lizbeth; Vargas Leitón, Rodolfo (2019)

  Sexual size dimorphism (SSD) is the result of sexual or natural selection operating differently on the body sizes of females and males. Males of most lizard species are larger than females, suggesting intrasexual selection on ...

• Calling for more accurate information in aquarium trade: analysis of live-fish import permits in Costa Rica 

  Allen Monge, Pablo E.; Barquero Arroyo, Marco David; Bermúdez, Esteban; Calderón, Jose Carlos; Hilje, Branko; Pineda Lizano, Willy; Saborío Rodríguez, Guido; Arguedas Porras, Viviana; Chacón Madrigal, Eduardo (2017)

  Ornamental fish trade is a growing business around the world, but also a major pathway for the introduction of potentially invasive species. Trade patterns and policies have been evaluated in high-income countries while ...

• Differences in plasmatic butyrylcholinesterases (BChE) values between Pacific and Caribbean populations of terciopelo (Bothrops asper) in Costa Rica 

  Arguedas Porras, Randall; Gómez Argüello, Aarón; Alcázar García, Paloma; Chacón Gutiérrez, Danilo; Corrales Vásquez, Greivin; Barquero Arroyo, Marco David (2019)

  The terciopelo (Bothrops asper) inhabits human-modified environments such as agricultural areas, becoming more prone to be exposed to organophosphate insecticides. These chemicals can inhibit plasmatic butyrylcholinesterases ...

• Is mating in the Túngara Frog (Engystomops pustulosus: Leptodactylidae) random or non-random? 

  Barquero Arroyo, Marco David; Hilje, Branko (2017)

  Random and non-random mating result from sexual selection, and both can occur across populations of the same species. Body size is a trait commonly used to determine if mating is random or non-random, and for the latter ...

• Behavioural responses of reptiles to visitors of protected areas in Costa Rica 

  Barquero Arroyo, Marco David; Chávez Zapata, Jensy; Cerdas, Andreína (2016)

  Tourists can have a strong impact on the behaviour of wild animals, modifying foraging strategies, diet and habitat use, increasing stress, and altering communication and escaping behaviour. Such behavioural changes have ...

• A brief survey of Higgs bundles 

  Zúñiga Rojas, Ronald Alberto (2019-06)

  Considering a compact Riemann surface of genus greater or equal than two, a Higgs bundle is a pair composed of a holomorphic bundle over the Riemann surface, joint with an auxiliar vector field, so-called Higgs field. This ...

• Signal repertoire and contest outcome in the Jacky dragon 

  Barquero Arroyo, Marco David; Whiting, ‪Martin J. (2016)

  Establishing dominance is an important mechanism for determining access to resources such as mates or territories. However, levels of aggression and dominance may vary among populations based on history and variation in ...

• Oxybelis aeneus: aggressive interactions with the clay-colored trush (Turdus grayi) 

  Barquero Arroyo, Marco David (2018)

  In this note an aggressive encounter between a brown vine snake (Oxybelis aeneus) and a clay-colored thrush (Turdus grayi) is reported. The observations took place in the campus of the University of Costa Rica, Limón ...

• Hemidactylus frenatus (Common House Gecko). Diet 

  Barquero Arroyo, Marco David (2017)

  Hemidactylus frenatus is an invasive species in the Americas that has succeeded in establishing populations in Costa Rica (Savage 2002. The Amphibians and Reptiles of Costa Rica: A Herpetofauna between Two Continents, ...

• Ecología del Homo sapiens y su relación sociocultural 

  Barquero Arroyo, Marco David (2017)

  Muchos individuos de la especie Homo sapiens consideran estar separada del resto de criaturas del Reino Animal. Esto implica que hay un desligamiento de las relaciones entre el ser humano y el entorno natural, cuyas causas ...

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