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Mostrando ítems 267-286 de 1643
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Changes in escape behaviour of black iguanas (Ctenosaura similis) over an anthropogenic disturbance gradient
(2021)Studies on the impact of human activity on animal behaviour are critical for understanding the extent to which humans affect ecological dynamics. Previous studies have found that human presence alters antipredator behaviours, ... -
Changes in nesting sites abundance and their use by woodpeckers along an urban gradient: a ten-year comparison
(2019)Woodpeckers nesting substrate abundance may be reduced by urban expansion, negatively affecting their reproduction. Long-term studies in the tropics are rare but valuable to estimate how urban development has affected ... -
Chapter 10 - Quality Control Measures in the Analytical Laboratory
(Academic Press, 2018) -
Chapter 6: Founder variations in isolated populations
(2020)Isolated populations, also called population isolates and genetic isolates, present several characteristic features that make them useful in the study of the genetic basis of both Mendelian and complex disorders. The ... -
Characteristics of male Spot-bellied Bobwhite (Colinus leucopogon) song during territory establishment
(2012)In song-learning birds, male song shows a large inter-individual variation that frequently plays an important role in intra- and inter-sexual selection. In other bird groups, such as Galliformes, song learning is absent, ... -
Characteristics of the capture threads of Synotaxus sp. (probably S. turbinatus) webs (Araneae, Synotaxidae)
(2009)Synotaxus spiders have independently evolved aerial, planar webs to intercept and retain prey, but these webs differ in several respects from planar araneoid webs with similar functions. The silk capture threads of Synotaxus ... -
Characteristics of the cocoon and natural history of the gregarious Meteorus restionis sp. n. (Hymenoptera, Braconidae, Meteorinae) from Costa Rica
(2011)A new species of a gregarious Meteorus wasp (Braconidae) constructs an unusual cocoon mass. Meteorus restionis sp. n. is described and distinguished from similar species. Cocoons of M. restionis are dark-brown, ovoid, and ... -
Characterization and phylogenetic relationships of strains of Dengue type 1 virus from Costa Rica
(Rev. Biol. Trop. (Int. J. Trop. Biol.), vol. 55, n. 2, 2007, 2007)Phylogenetic analysis of the envelope gene sequence (E) of three isolated Dengue virus type 1 (DEN- 1) sequences from the Costa Rican 1993 epidemic was performed. All the strains fell into genotype V. Genotype V has grouped ... -
Characterization of a Bacillus thuringiensis strain collection isolated from diverse Costa Rican natural ecosystems
(Universidad de Costa Rica, 2006-03-19)Como los ecosistemas naturales de Costa Rica figuran entre los más diversos del mundo, se propuso aislar la bacteria entomopatógena Bacillus thuringiensis (Bt) con el fin de conformar una colección de cepas y caracterizarlas ... -
Characterization of Batrachochytrium dendrobatidis Inhibiting Bacteria from Amphibian Populations in Costa Rica
(2017)Global amphibian declines and extinction events are occurring at an unprecedented rate. While several factors are responsible for declines and extinction, the fungal pathogen Batrachochytrium dendrobatidis (Bd) has been ... -
Characterization of Expression Quantitative Trait Loci in Pedigrees from Colombia and Costa Rica Ascertained for Bipolar Disorder
(2016-05-13)The observation that variants regulating gene expression (expression quantitative trait loci, eQTL) are at a high frequency among SNPs associated with complex traits has made the genome-wide characterization of gene ... -
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 ... -
Checklist of the Pacific marine macroalgae of Central America
(2011)Our present knowledge of marine macroalgal diversity for the Central American Pacific coast is limited by the short history of investigations (ca. 100 years) and few algal spe- cialists through a large geographical area. ... -
Chemical modification of graphene via hyperthermal molecular reaction
(2014)Chemical functionalization of graphene is achieved by hyperthermal reaction with azopyridine molecular ions. The one-step, room temperature process takes place in high vacuum (10–7 mbar) using an electrospray ion beam ... -
Chlorophyta de la Costa Pacífica de Costa Rica
(2008-12)Recent collections at the Pacific coast of Costa Rica have increased the number of reported marine green algae. In this paper we present an updated list of the marine green algae of this coast, which is based on reports ... -
Chloroplast genomes as a tool to resolve red algal phylogenies: a case study in the Nemaliales
(2016)Obtaining strongly supported phylogenies that permit confident taxonomic and evolutionary interpretations has been a challenge in algal biology. High-throughput sequencing has improved the capacity to generate data and ... -
Las ciencias del mar en la Revista de Biología Tropical en su 50 aniversario
(Rev. Biol. Trop. 50(3/4): 903-907, 2002, 2002)El primer artículo sobre cualquier tema marino fue publicado en 1963 y desde entonces ha venido aumentando el número de publicaciones marinas hasta llegar a 637. Este número representa el 27% de todos los artículos ... -
Clave para la identificación de géneros de thrips (Insecta: Thysanoptera) comúnmente asociados a plantas ornamentales en Centroamérica
(2017)Se presenta una clave ilustrada de especies de tisanópteros encontradas en plantas ornamentales de Costa Rica, Cuba y México, con referencias de especies presentes en la Argentina y la Península Ibérica. La clave incluye ... -
Claves para la identificación de los peces de las aguas continentales e insulares de Costa Rica. Parte I: Familias
(2021)Introducción: El conocimiento sobre la composición taxonómica de la fauna de peces de agua dulce de Costa Rica ha cambiado sustancialmente en las últimas dos décadas. No solamente por la adición de nuevas especies y táxones ...