Listar Biología por título
Mostrando ítems 1377-1396 de 1643
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Spatial and temporal changes in reef fish assemblages on disturbed coral reefs, north Pacific coast of Costa Rica
(2019)Benthic structure of coral reefs determines the availability of refuges and food sources. Therefore, structural changes caused by natural and anthropogenic disturbances can have negative impacts on reef‐associated communities. ... -
Spatial Distribution of Whitefly Species (Hemiptera: Aleyrodidae) and Identification of Secondary Bacterial Endosymbionts in Tomato Fields in Costa Rica
(2020-10-19)In Costa Rica, tomato (Solanum lycopersicum Linnaeus) Linnaeus (Solanales: Solanaceae) is one of the crops most severely affected by the whiteflies (Hemiptera: Aleyrodidae) Trialeurodes vaporariorum (Westwood) and the ... -
Spatial genetic structure within size classes of the endangered tropical tree Guaiacum sanctum (Zygophyllaceae)
(2010)Premise of the study: Patterns of spatial genetic structure (SGS) were analyzed within a population of the endangered tropical tree Guaiacum sanctum located in northwestern Costa Rica. Documentation of these patterns ... -
Spatio‑temporal distribution and reproductive phenologyof Neotropical bat species in an altitudinal gradient in Costa Rica
(2022-01-14)We studied the altitudinal and temporal patterns of species abundance and reproductive status for 18 Neotropical bat species during 17 continuous months in four ranges (low 50, mid–low 500, mid–high 1000, and high 2000 ... -
Species richness and density of seabirds in Isla del Coco bays, Costa Rica, related to the occurrence of breeding colonies
(2016-10-15)Isla del Coco is one of the five oceanic islands situated on the eastern tropical Pacific Ocean and represents an important nesting and roosting site for seabirds. Despite several factors that can potentially impact its ... -
Specific leaf area (SLA) serves as a proxy to predict total carbon content in understory individuals of the neotropical canopy palm Socratea exorrhiza
(2023)Evaluating intraspecifc and ontogenetic variation in SLA is critical to understand how functional traits infuence plant ftness and regeneration strategies. SLA is usually expressed as an average value per species. Its ... -
Specklinia dunstervillei, a New Species Long Confused with Specklinia endotrachys (Orchidaceae: Pleurothallidinae)
(2015)Specklinia dunstervillei is described as a new species in recognition of the distinctness of a Venezuelan species related to and confused with Specklinia endotrachys. It was illustrated for the first time by G. C. K. ... -
Specklinia Lindl.
(2022)Specklinia is a genus of 106 species in the Pleurothallidinae subtribe. Its members are distributed from Mexico, through Central America and the Antilles, to Bolivia and Brazil, with the highest species and phylogenetic ... -
Specklinia lugduno-batavae (Pleurothallidinae: Orchidaceae), a new species in the S. digitalis group
(2015)Specklinia lugduno-batavae from the Caribbean lowlands of Nicaragua and Costa Rica is formally described and illustrated. The new species belongs to the Specklinia digitalis group and can be recognised by the creeping ... -
Spectral measure of color variation of black-orange-black (BOB) pattern in small parasitoid wasps (Hymenoptera: Scelionidae), a statistical approach
(2019)Small parasitoid wasps are abundant and extremely diverse, yet their colors have not been analyzed. One of the more common color patterns observed in these wasps is a black-orange-black pattern, which is especially common ... -
Spectroelectrochemical Experiment for Studying Water Oxidation with a Nickel Oxide Catalyst
(2020)Electrochemical and spectroelectrochemical techniques are very important for characterizing energy materials. In the search for new sources of renewable energy, water splitting for hydrogen production and CO2 reduction is ... -
Spiders hanging out in the rain
(2021-03-12)Behavioural adjustments to changing environmental conditions are advantageous for spiders, as such adjustments likely allow spiders to remain in good hunting sites. Here, we describe the behavioural response of seven ... -
Stanhopeinae Mesoamericanae VI. On the identity of Polycycnis barbata (Orchidaceae), and other notes on the genus Polycycnis
(2020)The identity of Polycycnis barbata is discussed and, upon examination of the type, the name is lectotypified and synonymized under the species with erect, small-flowered inflorescence traditionally known as P. muscifera. ... -
Static allometry and sexual size dimorphism in Centruroides margaritatus (Scorpiones: Buthidae)
(2012)Abstract. Animal body traits are scaled relative to overall body size depending on the evolutionary context. Most naturally selected traits are scaled approximately isometrically (constitute a constant proportion of the ... -
Status of coral reef communities on the caribbean coast of Costa Rica: Are we talking about corals or macroalgae reefs?
(2023)In the past decades, one of the most widely reported phenomena on Caribbean reefs is the general fall in coral cover and rise in macroalgae. Reefs with low coral cover and high macroalgal abundances are often presumed ... -
Stelis Swartz
(2022)Stelis Sw. is the most diverse genus in the Pleurothallidinae subtribe with over 1240 species recognized today. With 107 species recorded in Costa Rica, Stelis is rivaled in numbers only by Epidendrum L. and Lepanthes ... -
Stem and crown allometry in four congeneric species of dioecious tropical trees
(2016)Morphological adaptations favor differential use of the space in tropical trees, but the variability in stem and crown allometry can be constrained by phylogenetic and mechanical factors. In addition, dioecious species ... -
Step‐by‐Step Pipeline for the Ecological Analysis of Endophytic Fungi using ITS nrDNA Data
(2020-01-07)The nuclear ribosomal DNA internal transcribed spacer (ITS) is accepted as the genetic marker or barcode of choice for the identification of fungal samples. Here, we present a protocol to analyze fungal ITS data, from ... -
Streptomyces sp. M54: an actinobacteria associated with a neotropical social wasp with high potential for antibiotic production
(2021-01-17)Abstract Streptomyces symbionts in insects have shown to be a valuable source of new antibiotics. Here, we report the genome sequence and the potential for antibiotic production of ‘‘Streptomyces sp. M54’’, an Actinobacteria ... -
Strong individual signatures and weaker group signatures in contact calls of Spix’s disc-winged bat, Thyroptera tricolor
(2012-01)Spix’s disc-winged bats, Thyroptera tricolor, form small, long-term social groups in which members are loyal to a patch of forest but move on a daily basis between highly ephemeral roosting sites (partly unfurled Heliconia ...