Results 11 to 20 of about 210 (158)

Genetic population dynamics of the critically endangered scalloped hammerhead shark (Sphyrna lewini) in the Eastern Tropical Pacific. [PDF]

Ecol Evol, 2022
The scalloped hammerhead shark is a Critically Endangered (IUCN Red List), circumglobally distributed species in warm temperate and tropical seas. This species exhibits both periods of restricted movements as well a strong migratory propensity and is known to form iconic, large seasonal aggregations at offshore oceanic islands.
Harned SP, Bernard AM, Salinas-de-León P, Mehlrose MR, Suarez J, Robles Y, Bessudo S, Ladino F, López Garo A, Zanella I, Feldheim KA, Shivji MS.   +11 more
europepmc   +2 more sources

Fiddler Crabs (Crustacea: Decapoda: Ocypodidae) From Coastal Ecuador and the Galápagos Islands: Species Descriptions and DNA Barcodes. [PDF]

Ecol Evol
Twenty‐five taxa were collected during the surveys, while two more were noted from the literature and museum collections; five are new to Ecuador. DNA sequences for cytochrome c oxidase–subunit 1 were obtained for 27 operational taxonomic units with three morphologically indistinguishable cryptic or pseudo‐cryptic taxa were also revealed.
Thurman CL, McNamara JC, Shih HT, Capparelli MV.   +3 more
europepmc   +2 more sources

Distribution extension of Escherbothrium molinae Berman and Brooks, 1994 (Cestoda: Tetraphyllidea: Triloculariidae) in Urotrygon sp. from the Pacific Coast of Mexico [PDF]

Check List, 2013
Cestodes collected from the spiral valves of the stingray Urotrygon sp. from the Pacific coast of Mexico were identified as Escherbothrium molinae Berman and Brooks, 1994.
Francisco Zaragoza-Tapia, Scott Monks, Griselda Pulido-Flores, Juan Violante-González   +3 more
doaj   +3 more sources

Late Quaternary Abrupt Climate Change in the Tropics and Sub‐Tropics: The Continental Signal of Tropical Hydroclimatic Events (THEs)

Reviews of Geophysics, Volume 59, Issue 4, December 2021., 2021
Abstract Tropical hydroclimatic events, characterized by extreme regional rainfall anomalies, were a recurrent feature of marine isotope stages 2–4 and involved some of the most abrupt and dramatic climatic changes in the late Quaternary. These anomalies were pervasive throughout the tropics and resulted from the southward displacement of the Hadley ...
Raymond S. Bradley, Henry F. Diaz
wiley   +1 more source

A Global Set of Subduction Zone Earthquake Scenarios and Recurrence Intervals Inferred From Geodetically Constrained Block Models of Interseismic Coupling Distributions

Geochemistry, Geophysics, Geosystems, Volume 22, Issue 11, November 2021., 2021
Abstract The past 100 years have seen the occurrence of five earthquakes and 94 earthquakes. Here we assess the potential for future great earthquakes using inferences of interseismic subduction zone coupling from a global block model incorporating both tectonic plate motions and earthquake cycle effects.
Shannon E. Graham, John P. Loveless, Brendan J. Meade   +2 more
wiley   +1 more source

Marine and estuarine fish diversity in the inner Gulf of Nicoya, Pacific coast of Costa Rica, Central America [PDF]

Check List, 2014
A checklist of the marine and estuarine fishes of the inner part of the Gulf of Nicoya, Pacific coast of Costa Rica, Central America, was compiled by examining a museum fish collection, resulting in 72 families and 274 species.
Atsunobu Murase, Arturo Angulo, Yusuke Miyazaki, William Bussing, Myrna López   +4 more
doaj   +3 more sources

Museum specimens and occurrences of Glottidia audebarti, Discradisca strigata and other brachiopods (Brachiopoda) in the Pacific of Costa Rica

Cuadernos de investigación UNED, 2023
Introduction: Lamp shells or brachiopods have a rich fossil record but only about 400 extant species. Their diversity on the Eastern Pacific is poorly known and only eight species are reported for the Pacific of Costa Rica.
José A. Vargas Zamora, Rita Vargas-Castillo   +1 more
doaj   +1 more source

Transformative research and capacity building in the education sector to protect livelihoods and biodiversity in Costa Rica

Revista Académica Arjé, 2023
Osnabrück University and Universidad Técnica Nacional develop inter- and transdisciplinary approaches in research and education to restore and protect biodiversity. In Costa Rica, many persistent social-ecological conflicts can be observed.
Philipp Gorris, Dennis Wilke, Johannes Halbe   +2 more
doaj   +1 more source

Hydroacoustic estimation of fish biomass in the Gulf of Nicoya, Costa Rica

Revista de Biología Tropical, 1969
Se utílizó un diseño muestral estratificado para llevar a cabo una evaluación hidroacústica de la sección interior del Golfo de Nicoya. La topografía submarina fue modelada introduciendo el concepto topográfico de la cuenca, como una forma de proyectar los estimados del muestreo a todo el Golfo interno.
Hedgepeth, John, Gallucci, Vicent F., Campos M., Jorge A., Mug, Moises   +3 more
openaire   +6 more sources

Building a Methodology for the Learning of English in Rural Context: Learners Insights

Revista Electrónica Educare, 2018
This article shows the results of a research and university extension project carried out at the Chorotega campus of the Universidad Nacional, Costa Rica, titled Constructing an innovative methodology that favors English learning in people with low ...
Yendry Dover-Carrillo, Aleida Rosales-Acosta, Rocío Pérez-Vidaurre   +2 more
doaj   +1 more source