Listar Biología por título
Mostrando ítems 310-329 de 1615
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Composición, abundancia, biomasa y diversidad del zooplancton en Bahía Salinas, Pacífico Norte de Costa Rica
(2016)El proyecto tuvo como objetivo general caracterizar el zooplancton de Bahía Salinas, Pacífico Norte de Costa Rica durante un ciclo anual y determinar los cambios estacionales asociados al periodo de afloramiento costero ... -
Composition and species richness of the herpetofauna of a Costa Rican University campus
(2019)The campus of the University of Costa Rica in Limón port city, Costa Rica, known as Sede del Caribe (SC), includes a secondary forest of ca. 40 years old. This forest holds a great potential for environmental education, ... -
Composition of the essential oil from leaves of Smallanthus quichensis (Asteraceae) from Costa Rica
(2015-09-30)Smallanthus is a genus of flowering plants in the Asteraceae family, which has about 24 species, ranging mostly from southern Mexico and Central America to the Andes in South America. The aim of the present study was to ... -
Comunidades y arrecifes coralinos del Parque Nacional Marino Ballena, costa del Pacífico de Costa Rica
(2005)Se estudiaron las comunidades y arrecifes coralinos del Parque Nacional Marino Ballena (PNMB), en el Pacífico sur de Costa Rica, mediante tres transectos por sitio, de 10 m de largo cada uno y paralelos a la costa, utilizando ... -
Conceptual and statistical problems with the use of the Shannon-Weiner entropy index in bioacoustic analyses
(2018-04-03)Information theory and its indices were developed for human communication to predict the amount of information transferred in a message. One such index, the Shannon-Weiner index (SWI), has often been used to analyse ... -
Confusion in Epidendrum brenesii Schltr., and a new Costa Rican species: Epidendrum sotoanum (Orchidacaeae)
(2010)Two species have been confused under the name Epidendrum brenesii Schltr., both were used in the original description and drawing of the type. The purple-flowered species, has been commonly known as E. brenesii, a specimen ... -
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 ... -
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 ... -
Conservación de orquídeas en una reserva privada de Palmares, Costa Rica
(2016-12)Madre Verde Private Preserve, located in Palmares (Alajuela, Costa Rica) protects a forest relict surrounded by pastures, bushes and abandoned agriculture grounds. An inventory was conducted in this preserve to determine ... -
Conspecific and predator perception of the Red Oophaga pumilio Morph from the Central Caribbean of Costa Rica
(2020-11-04)Strawberry Poison Frogs (Oophaga pumilio) are common members of leaf litter lowland communities in Central America and exhibit several color morphs throughout their distribution. Color plays a determinant role during intra- ... -
Construction and function of the web of Tidarren sisyphoides (Araneae: Theridiidae)
(2009)In this paper, we describe the construction and function of the double sheet and tangle web of Tidarren sisyphoides (Walckenaer 1842). Web construction includes several stages: construction of the scaffolding that serves ... -
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 ... -
Contrasting Patterns of Population History and Seed-mediated Gene Flow in Two Endemic Costa Rican Oak Species
(2018)Lower Central America is an important area to study recent population history and diversification of Neotropical species due to its complex and dynamic geology and climate. Phylogeographic studies in this region are few ... -
Contrasting Thermal Strategies of Montane Neotropical Bats at High Elevations
(2018)In the Neotropics, captive vespertilionid bats substantially reduce their metabolic rate at low ambient temperatures, similar to their temperate counterparts, whereas the ability of phyllostomids to lower metabolic rate ... -
Contribution to the knowledge of Costa Rican oribatid mite fauna, with supplementary descriptions of Pergalumna silvatica and P. sura (Acari: Oribatida: Galumnidae)
(2014-06)An annotated checklist of oribatid mites collected from Costa Rica in 2012 is provided. We have registered 10 species in 8 genera and 6 families. Archegozetes magnus, Kokoppia euramosa, Neoamerioppia cocuyana, Xenillus ... -
Contribution to the phylogeny and a new species of Coccodiella (Phyllachorales)
(2017-11-04)Coccodiella is a genus of plant-parasitic species in the family Phyllachoraceae (Phyllachorales, Ascomycota), i.e., tropical tar spot fungi. Members of the genus Coccodiella are tropical in distribution and are ...