Listar Biología por título
Mostrando ítems 75-94 de 1644
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Aberración de plumaje canoso progresivo en el Pinzón de la Isla del Coco (Pinaroloxias inornata) en el Parque Nacional Isla del Coco, Costa Rica.
(2023-07)Las aberraciones de plumaje en aves silvestres son un fenómeno común, y en Costa Rica se han documentado en varias familias, aunque la información todavía es limitada en sitios remotos como la Isla del Coco, así como en ... -
Abundance and Distribution Patterns of Thunnus albacares in Isla del Coco National Park through Predictive Habitat Suitability Models
(2016)Information on the distribution and habitat preferences of ecologically and commercially important species is essential for their management and protection. This is especially important as climate change, pollution, and ... -
Abundance of Petrolisthes armatus (Crustacea: Porcellanidae) on a tropical estuarine intertidal rocky beach, Gulf of Nicoya estuary, Costa Rica
(2016-09-22)Se estudió, de diciembre de 1997 a noviembre de 1998 (14 fechas), la población del cagrejo porcelánido Petrolisthes armatus en dos sitios en una playa rocosa de entre mareas en el Golfo de Nicoya, costa pacífica de Costa ... -
Abundancia y fluctuaciones de aves limícolas (Charadriiformes) en una playa fangosa de Chomes, Costa Rica
(1992)We recorded 27 species of Charadriiformes on the mud flats of Chomes, Golfo de Nicoya, Costa Rica, during biweekly censuses over one year. These were grouped taking into account their abundance and permanence on the flat. ... -
Abundancia, biomasa y floración de Thalassia testudinum (Hydrocharitaceae) en el Caribe de Costa Rica
(Rev. Biol. Trop. (Int. J. Trop. Biol. ISSN-0034-7744) Vol. 56 (Suppl. 4): 175-189, December 2008, 2008-12)Three Thalassia testudinumseagrass beds were studied at Cahuita National Park, from August 2003 to August 2006. Additionally, biomass samples of this species were collected at the Gandoca-Manzanillo National Wildlife Refuge, ... -
Abundancia, biomasa y floración de Thalassia testudinum (Hydrocharitaceae) en el Parque Nacional Cahuita, Caribe de Costa Rica
(2007)Tesis publicada en: Rev. Biol. Trop. (Int. J. Trop. Biol. ISSN-0034-7744) Vol. 56 (Suppl. 4): 175-189, December 2008. Entre agosto 2003 y agosto 2006 se estudiaron tres sitios representativos del Parque Nacional Cahuita ... -
Aceites esenciales, fenología e interacciones bióticas de la planta invasora Crassocephalum crepidioides (Asteraceae) en Costa Rica
(2022-12)Crassocephalum crepidioides (Asteraceae) es una especie herbácea con notables usos etnobotánicos en África y otras áreas, que se extendió como invasora en varias regiones tropicales y subtropicales del mundo. Objetivo: ... -
Acoustic courtship songs in males of the fruit fly Anastrepha ludens (Diptera: Tephritidae) associated with geography, mass rearing and courtship success
(Rev. Biol. Trop. 57 (Suppl. 1): 257-265. Epub 2009 November 30., 2009-11-30)The Sterile Insect Technique (SIT) has been used successfully to control or eradicate fruit flies. The commonly observed inferiority of mass-reared males, compared with wild males, when they are paired with wild females, ... -
Actinoramide A Identified as a Potent Antimalarial from Titration-Based Screening of Marine Natural Product Extracts
(2015)Methods to identify the bioactive diversity within natural product extracts (NPEs) continue to evolve. NPEs constitute complex mixtures of chemical substances varying in structure, composition, and abundance. NPEs can ... -
Acuarelas de orquídeas: Arte y ciencia de Rafael Lucas Rodríguez en la Universidad de Costa Rica
(2023-04-07)En 2001 tuve acceso a las acuarelas de Rafael Lucas Rodríguez Caballero, custodiadas en una sala con aire acondicionado de la Biblioteca Luis Demetrio Tinoco de la Universidad de Costa Rica (UCR). Manualmente copié la ... -
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 ...