Results 21 to 30 of about 5,114 (181)

Upwelling increases net primary production of corals and reef-wide gross primary production along the Pacific coast of Costa Rica

Frontiers in Marine Science, 2015
Photosynthetic production is a key ecosystem service provided by tropical coral reefs, but knowledge about the contribution of corals and other reef-associated organisms and the controlling environmental factors is scarce.
Ines eStuhldreier, Ines eStuhldreier, Celeste eSánchez-Noguera, Celeste eSánchez-Noguera, Florian eRoth, Florian eRoth, Jorge eCortés, Tim eRixen, Christian eWild, Christian eWild   +9 more
doaj   +1 more source

Morphometric differences in the grasshopper Cornops aquaticum (Bruner, 1906) from South America and South Africa [PDF]

, 2008
The semi-aquatic grasshopper Cornops aquaticum is native to South America and inhabits lowlands from southern Mexico to Central Argentina and Uruguay. It is host-specific to aquatic plants in the genera Eichhornia and Pontederia.
Adis, Joachim, Brede, Edward G, Capello, Soledad, Franceschini, Maria Celeste, Hill, Martin, Lhano, Marcos G, Marques, Marinê. A, Nunes, Ana L., Polar, Perry, Sperber, Carlos F   +9 more
core   +2 more sources

Biology of growth of Hoplias aff. malabaricus (Bloch, 1794) in a shallow pampean lake Argentina [PDF]

, 2011
The trahira Hoplias aff. malabaricus is a top predator in pampean shallow lakes and is highly appreciated by recreational anglers and artisanal fishermen.
Baigún, Claudio Rafael M., Balboni, Leandro, Colautti, Dario César   +2 more
core   +3 more sources

Variation in cell densities and pigment concentrations of symbiotic dinoflagellates in the coral Pavona clavus in the eastern Pacific (Costa Rica)

Ciencias Marinas, 2008
The density and chlorophyll concentrations of symbiotic dinoflagellates (zooxanthellae) in the eastern Pacific coral Pavona clavus were monitored over the transitional period from rainy to dry season in a seasonal upwelling region and in a nonupwelling ...
S Sunagawa, J Cortés, C Jiménez, R Lara   +3 more
doaj   +1 more source

Habitat expansion of a tropical chironomid by seasonal alternation in use of littoral and profundal zones

Journal of Limnology, 2022
The consistent warming of tropical lakes at all depths causes rapid development and long persistence of seasonal hypoxia in the hypolimnion, which greatly reduces the biodiversity of hypolimnetic benthic invertebrates. Full mixing of the water column in
Javier Alcocer, William M. Lewis Jr., María del Carmen Hernández, Luis A. Oseguera, Vania J.J. Pérez, Narcís Prat   +5 more
doaj   +1 more source

Responses of Benthic Macroinvertebrate Communities of Two Tropical, High-Mountain Lakes to Climate Change and Deacidification

Diversity, 2021
High-mountain lakes are among the most comparable ecosystems globally and recognized sentinels of global change. The present study pursued to identify how the benthic macroinvertebrates (BMI) communities of two tropical, high mountain lakes, El Sol and ...
Javier Alcocer, Luis A. Oseguera, Diana Ibarra-Morales, Elva Escobar, Lucero García-Cid   +4 more
doaj   +1 more source

Thermal impact from a thermoelectric power plant on a tropical coastal lagoon [PDF]

, 2014
Tropical coastal areas are sensitive ecosystems to climate change, mainly due to sea level rise and increasing water temperatures. Furthermore, they may be subject to numerous stresses, including heat releases from energy production.
Alonso-Rodriguez, R., Bernardello, R., Cardoso-Mohedano, J.G., Cruzado, A., Ruiz-Fernández, A.C., Sanchez-Cabeza, J.A.   +5 more
core   +2 more sources

​Xantismo en peces cíclidos (Cichliformes: Cichlidae) costarricenses, y variación ontogenética en Parachromis dovii

Cuadernos de investigación UNED, 2021
Introducción: El xantismo o xantocromismo es una anomalía fenotípica que se evidencia por la producción predominante de xantina, un pigmento que le da al organismo una coloración amarillenta.
Arturo Angulo, Jorge Andrés San Gil León   +1 more
doaj   +1 more source

Diet of Black-crowned Night-herons (Nycticorax nycticorax) in a wetland of the Paraná River´s alluvial valley [PDF]

, 2013
We analysed the feeding ecology of Nycticorax nycticorax based on fourty individuals captured on the Carabajal İsland (Santa Fe, 31º39?S, 60º42?W), determining the minimum sample, index of relative importance (IRI), size of prey, feeding efficiency ...
Beltzer, Adolfo Hector, Leon, Evelina Jesica, Olguin, Pamela Fernanda, Quiroga, Martin Anibal   +3 more
core   +1 more source

Behavioral States Related to Environmental Conditions and Fisheries During Olive Ridley Turtle Migration From Pacific Panama

Frontiers in Marine Science, 2019
Sea turtles migrate from breeding grounds to foraging areas through the territorial waters of several countries. Olive ridleys lack clear migratory routes, which makes it a challenge for conservation.
Hector M. Guzman, Grant Rogers, Catalina G. Gomez, Catalina G. Gomez   +3 more
doaj   +1 more source