Browsing Biología by Title
Now showing items 87-106 of 1635
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Acute stress differentially affects grooming subtypes and ultrasonic vocalisations in the open-field and home-cage test in rats
(2020-06)Grooming behaviour in rodents has been associated with emotional distress, especially in unfamiliar and aversive contexts. However, the biological function of grooming in such situations is still unclear. We hypothesised ... -
Adaptation of biomixtures for carbofuran degradation in on-farm biopurification systems in tropical regions
(2015-07)A biomixture constitutes the active core of the on-farm biopurification systems, employed for the detoxification of pesticide-containing wastewaters. As biomixtures should be prepared considering the available local ... -
Additions to the Costa Rican Myoxanthus (Orchidaceae: Pleurothallidinae)
(2017)Pleurothallis cerea, a species described based on a specimen collected by Lankester in Costa Rica, and commonly placed under the synonymy of Myoxanthus octomeriae or M. congestus, is here recognized as distinct. The species ... -
Additions to the Genus Bactris (Arecaceae)of Mesoamerica
(2000)Two new endemic species of Bactris, found in the understorey of humid forest on the Pacific Coast of Costa Rica, are described and illustrated. Bactris ana-juliae is 1.8-3.0 m tall, and B. herrerana is 2.0-3.0 m tall. -
Additions to the myxobiota of Central America
(2014)Given the fact that until recently the myxomycetes were an understudied group in Central America, it is not surprising that the number of new records for most countries is currently increasing at a steady pace. This is ... -
Addressing the Problem of Harmful Algal Blooms in Latin America and the Caribbean- A Regional Network for Early Warning and Response
(2018)Harmful algal blooms (HABs) constitute a worldwide problem, affecting aquatic ecosystems, public health and local economies. Supported by the International Atomic Energy Agency since 2009, Latin America and the Caribbean ... -
Age, experience, and neurobehavioral domain: dissociable effects of environmental enrichment and social isolation on brain and behavior in adult and aged rats
(2019)In rats, environmental enrichment (EE) is a form of physical-social stimulation used for modeling the impact of optimal developmental conditions on animal’s phenotype. When implemented during early life, EE improves animal’s ... -
Age-dependent differences on neurochemistry and behavior in rats raised with low and high levels of maternal care
(2019)In laboratory rats, naturally-occurring variations in maternal care have been used to study the neurobehavioral consequences of maternal nursing and to model the early-life adversity associated with many psychiatric ... -
Agresividad y competencia por refugios en el murciélago Kerivoula hardwickii
(2022)En la competencia por recursos, generalmente se ha pensado que los animales con mayor tamaño y masa corporal tienen más probabilidades de ganar batallas. Sin embargo, recientemente se ha descubierto que las diferencias de ... -
Air-exposure behavior: a restricted or a common conduct among intertidal hermit crabs?
(2020)A new behavior related to shell care was recently reported for the intertidal hermit crab Clibanarius erythropus (Latreille, 1818) in the Gulf of Cádiz (southwestern Europe). It also has been observed in other species of ... -
Algoritmos de aprendizaje automático en la identificación de miARNS potencialmente asociados a discapacidades intelectuales no sindrómicas
(2022-05-20)Las Discapacidades intelectuales (IDs) son un grupo de trastornos del neuro-desarrollo con una alta heterogeneidad fenotípica y genotípica. La asociación de elementos genéticos, como genes, micro-ARNs o ARNs largos no ... -
Algunos Detalles Ultraestructurales de la Morfología Externa del Adulto y la Deutoninfa de Allonothrus neotropicus1 en 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 ... -
Alimentacion de pichones, exito reproductivo y notas sobre cuido parental en yiguirros (Turdus grayi): el rol de las hembras y machos
(2018)Las hembras frecuentemente invierten ma ́s que los machos en cuido parental, pero en sistemas sociales monogamos, los machos invierten tanto como las hembras en el cuido de su progenie y se estima que esta contribucion ... -
Alkaloids from Crinum erubescens Aiton
(2016-09)Eight alkaloids have been identified from fresh leaves of Crinum erubescens (Amaryllidaceae) collected in Costa Rica. The alkaloid 1-epidemethylbowdensine, detected by means of GC–MS as part of a global Amaryllidaceae ... -
All-offspring natal philopatry in a Neotropical bat
(2011-11)Natal dispersal is a strategy employed by individuals to avoid reproducing with close relatives. In most bats, incestuous matings are prevented by the departure of one sex; thus, all-offspring philopatry has rarely been ... -
Allometry and stilt root structure of the Neotropical palm Euterpe precatoria (Arecaceae) across sites and successional stages
(2010)The lack of secondary meristems shapes allometric relationships of the palms, infl uencing species segregation according to their capacity to adjust form and function to spatial and temporal changes in environmental ... -
La alometría estática de estructuras bajo selección sexual.
(2012-04-24)El proyecto se diseñó para determinar la alometría del tamaño de las estructuras genitálicas y otras no-genitálicas en varias especies de Coleoptera. El informe es una lista de las publicaciones generadas a partir de la ...