Petrogenesis of Central American Tertiary ignimbrites and associated Caribbean Sea tephra

2007 ◽  
Author(s):  
B.R. Jordan ◽  
H. Sigurdsson ◽  
S. Carey ◽  
S. Lundin ◽  
R.D. Rogers ◽  
...  
Keyword(s):  
Caribbean Sea ◽  
Central American

scholarly journals Role of moisture transport for Central American precipitation

2016 ◽  
Author(s):  
Ana María Durán-Quesada ◽  
Luis Gimeno ◽  
Jorge Amador
Keyword(s):  
Central America ◽  
Moisture Transport ◽  
Rainy Season ◽  
Large Scale ◽  
Southern Oscillation ◽  
Caribbean Sea ◽  
Central American ◽  
Moisture Supply ◽  
The Caribbean ◽  
Precipitation Trends

Abstract. A climatology of moisture sources linked with Central American precipitation was computed based upon Lagrangian trajectories for the analysis period 1980–2013. The response of the annual cycle of precipitation in terms of moisture supply from the sources was analysed. Regional precipitation patterns are mostly driven by moisture transport from the Caribbean Sea (CS). Moisture supply from the Eastern Tropical Pacific (ETPac) and Northern South America (NSA) exhibits a strong seasonal pattern but weaker compared to CS. The regional distribution of rainfall is largely influenced by a local signal associated with surface fluxes during the first part of the rainy season, whereas large scale dynamics forces rainfall during the second part of the rainy season. The Caribbean Low Level Jet (CLLJ) and the Chocó Jet (CJ) are the main conveyors of regional moisture, being key to define the seasonality of large scale forced rainfall. Therefore, interannual variability of rainfall is highly dependent of the regional LLJs to the atmospheric variability modes. The El Niño-Southern Oscillation (ENSO) was found to be the dominant mode affecting moisture supply for Central American precipitation via the modulation of regional phenomena. Evaporative sources show opposite anomaly patterns during warm and cold ENSO phases, as a result of the strengthening and weakening, respectively, of the CLLJ during the summer months. Trends in both moisture supply and precipitation over the last three decades were computed, results suggest that precipitation trends are not homogeneous for Central America. Trends in moisture supply from the sources identified show a marked north-south seesaw, with an increasing supply from the Caribbean Sea to northern Central America. Long term trends in moisture supply are larger for the transition months (March and October). This might have important implications given that any changes in the conditions seen during the transition to the rainy season may induce stronger precipitation trends.

A morphological and molecular revision of lizards of the genus Marisora Hedges & Conn (Squamata: Mabuyidae) from Central America and Mexico, with descriptions of four new species

Zootaxa ◽  
2020 ◽  
Vol 4763 (3) ◽  
pp. 301-353
Author(s):  
JAMES R. MCCRANIE ◽  
AMY J. MATTHEWS ◽  
S. BLAIR HEDGES
Keyword(s):  
New Species ◽  
South America ◽  
Central America ◽  
Caribbean Sea ◽  
Molecular Data ◽  
Central American ◽  
The Caribbean ◽  
Northern South America ◽  
Genetic Distinctiveness ◽  
Morphological And Molecular Data

The skink genus Marisora ranges from Mexico to northern South America and occurs on some islands in the Caribbean Sea. We conducted a revision of the genus Marisora from Mexico and Central America, using new morphological and molecular data, and find support for the five previously described species (Marisora alliacea, M.aurulae, M. brachypoda, M. magnacornae, and M. roatanae) and describe four new species: Marisora lineola sp. nov., M. aquilonaria sp. nov., M. syntoma sp. nov., and M. urtica sp. nov. We show that two species previously known only from Central American islands, M. magnacornae and M. roatanae, also occur on the adjacent mainland and that two species recently placed in Alinea belong to this evolutionary clade: Marisora berengerae n. comb. and Marisora pergravis n. comb. Together with M. falconensis and M. unimarginata, these 13 species of Marisora arose mostly in the Pliocene and are largely allopatric but are sympatric and nearly sympatric at several locations in Central America where they maintain their morphological and genetic distinctiveness. 

Exploration and Commerce on Lake Nicaragua and the Río San Juan—1524-1800

1970 ◽  
Vol 12 (1) ◽  
pp. 107-125
Author(s):  
David R. Radell
Keyword(s):  
Caribbean Sea ◽  
Central American ◽  
Panama Canal ◽  
San Juan ◽  
Alternate Route ◽  
The Pacific ◽  
History Of ◽  
The Pacific Ocean ◽  
The Caribbean ◽  
Water Passage

It is not surprising that prior to the construction of the Panama Canal, Nicaragua was considered of strategic importance to the world's major sea powers. Together the Río San Juan and Lake Nicaragua provide a water passage from the Caribbean Sea to within 20 kilometers of the Pacific Ocean (see map). In addition to its obvious inter-oceanic canal potential, this water passage was primarily useful for hundreds of years as an alternate route for the pirate-threatened Central American colonial commerce.A remarkable number of historical and geographical misconceptions have appeared in the literature concerning this river. The recent publication of the seventeen-volume Colección Somoza containing documents relating to the history of Nicaragua from 1503 to 1550 does much to clarify this period of exploration and navigation.

Occurrence and biogeographic significance of Heliaster (Echinodermata: Asteroidea) from the Pliocene of southwest Florida

1988 ◽  
Vol 62 (01) ◽  
pp. 126-132 ◽  
Author(s):  
Douglas S. Jones ◽  
Roger W. Portell
Keyword(s):  
Central American ◽  
Eastern Pacific ◽  
Whole Body ◽  
Marine Fauna ◽  
Western Atlantic ◽  
Southwest Florida ◽  
Extant Species ◽  
Geologic Record ◽  
Central American Isthmus

Whole body asteroid fossils are rare in the geologic record and previously unreported from the Cenozoic of Florida. However, specimens of the extant species,Heliaster microbrachiusXantus, were recently discovered in upper Pliocene deposits. This marks the first reported fossil occurrence of the monogeneric Heliasteridae, a group today confined to the eastern Pacific. This discovery provides further non-molluscan evidence of the close similarities between the Neogene marine fauna of Florida and the modern fauna of the eastern Pacific. The extinction of the heliasters in the western Atlantic is consistent with the pattern of many other marine groups in the region which suffered impoverishment following uplift of the Central American isthmus.

Protecting U.S.-citizen children whose Central American parents have temporary protected status.

2019 ◽  
Vol 8 (1) ◽  
pp. 14-19 ◽  
Author(s):  
Lisseth Rojas-Flores ◽  
Josephine Hwang Koo ◽  
Jennifer Medina Vaughn
Keyword(s):  
Central American

Central American Radio

1955 ◽  
Vol 10 (1) ◽  
pp. 51-63 ◽  
Author(s):  
Marvin Alisky
Keyword(s):  
Central American
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