Early Neogene history of the Central American arc from Bocas del Toro, western Panama

2003 ◽  
Vol 115 ◽  
pp. 271-287 ◽  
Author(s):  
Anthony G. Coates ◽  
Marie-Pierre Aubry ◽  
William A. Berggren ◽  
Laurel S. Collins ◽  
Michael Kunk
Keyword(s):  
Central American ◽  
Bocas Del Toro ◽  
Central American Arc ◽  
Early Neogene ◽  
History Of

scholarly journals Relative abundance and activity patterns of terrestrial mammals in Pacuare Nature Reserve, Costa Rica

2017 ◽  
Vol 9 (1) ◽  
pp. 15-21
Author(s):  
Stephanny Arroyo-Arce ◽  
Ian Thomson ◽  
Carlos Fernandez ◽  
Roberto Salom-Perez
Keyword(s):  
Costa Rica ◽  
Nature Reserve ◽  
Mammalian Species ◽  
Activity Patterns ◽  
Abundant Species ◽  
Camera Trap ◽  
Central American ◽  
Leopardus Pardalis ◽  
Terrestrial Mammals ◽  
History Of

Located in Costa Rica, Pacuare Nature Reserve has a long established history of wildlife monitoring programs primarily focused on species of nesting marine turtles and the Agami herons (Agamia agami) found within the reserve. Our research represents the first as­sessment on the local terrestrial mammal populations. Data was col­lected by using seven camera trap stations distributed within the boundaries of the reserve. From April 2015 to March 2016, and after a total of 1 643 camera trap nights, we were able to identify 11 terres­trial mammalian species distributed in six orders and nine families. The most abundant species was the common opossum (Didelphis marsu­pialis), followed by the ocelot (Leopardus pardalis). A noticeably ab­sent species, otherwise common throughout the area, was the Central American agouti (Dasyprocta punctata). Our results are similar to those from other protected areas in the Northeastern Caribbean coast of Costa Rica.

scholarly journals The role of Central American barriers in shaping the evolutionary history of the northernmost glassfrog,Hyalinobatrachium fleischmanni(Anura: Centrolenidae)

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6115 ◽  
Author(s):  
Angela M. Mendoza ◽  
Wilmar Bolívar-García ◽  
Ella Vázquez-Domínguez ◽  
Roberto Ibáñez ◽  
Gabriela Parra Olea
Keyword(s):  
Genetic Structure ◽  
Central America ◽  
Population Expansion ◽  
Central American ◽  
Fault System ◽  
Mountain Range ◽  
Amphibian Species ◽  
Biogeographic History ◽  
History Of ◽  
The Impact

The complex geological history of Central America has been useful for understanding the processes influencing the distribution and diversity of multiple groups of organisms. Anurans are an excellent choice for such studies because they typically exhibit site fidelity and reduced movement. The objective of this work was to identify the impact of recognized geographic barriers on the genetic structure, phylogeographic patterns and divergence times of a wide-ranging amphibian species,Hyalinobatrachium fleischmanni. We amplified three mitochondrial regions, two coding (COI and ND1) and one ribosomal (16S), in samples collected from the coasts of Veracruz and Guerrero in Mexico to the humid forests of Chocó in Ecuador. We examined the biogeographic history of the species through spatial clustering analyses (Geneland and sPCA), Bayesian and maximum likelihood reconstructions, and spatiotemporal diffusion analysis. Our data suggest a Central American origin ofH. fleischmanniand two posterior independent dispersals towards North and South American regions. The first clade comprises individuals from Colombia, Ecuador, Panama and the sister speciesHyalinobatrachium tatayoi; this clade shows little structure, despite the presence of the Andes mountain range and the long distances between sampling sites. The second clade consists of individuals from Costa Rica, Nicaragua, and eastern Honduras with no apparent structure. The third clade includes individuals from western Honduras, Guatemala, and Mexico and displays deep population structure. Herein, we synthesize the impact of known geographic areas that act as barriers to glassfrog dispersal and demonstrated their effect of differentiatingH. fleischmanniinto three markedly isolated clades. The observed genetic structure is associated with an initial dispersal event from Central America followed by vicariance that likely occurred during the Pliocene. The southern samples are characterized by a very recent population expansion, likely related to sea-level and climatic oscillations during the Pleistocene, whereas the structure of the northern clade has probably been driven by dispersal through the Isthmus of Tehuantepec and isolation by the Motagua–Polochic–Jocotán fault system and the Mexican highlands.

scholarly journals Falling Outside: Excavating the History of Central American Asylum Seekers

2011 ◽  
Vol 36 (03) ◽  
pp. 569-596 ◽  
Author(s):  
Susan Bibler Coutin
Keyword(s):  
El Salvador ◽  
Retrospective Analysis ◽  
Civil Wars ◽  
Asylum Seekers ◽  
Central American ◽  
Central Americans ◽  
Asylum Law ◽  
Legal Advocacy ◽  
History Of ◽  
Time Periods

This article takes a retrospective look at legal advocacy on behalf of Central American asylum seekers, which has been influential in the development of US asylum law and in the creation of an infrastructure to address immigrants' needs. The article considers three time periods when Central Americans have been deemed to fall outside of the category of refugee: (1) the 1980s, when US administrations argued that Central Americans were economic immigrants; (2) the 1990s, when civil wars in El Salvador and Guatemala came to an end; and (3) the 2000s, when some Salvadoran youths in removal proceedings have argued that they faced persecution as perceived or actual gang members. This retrospective analysis highlights the ways in which law can be creatively reinterpreted by legal actors, as well as how legal innovations carry forward traces of prior historical moments.

scholarly journals The life history of the Long-wattled Umbrellabird Cephalopterus penduliger in the Andean foothills of north-west Ecuador: leks, behaviour, ecology and conservation

1999 ◽  
Vol 9 (1) ◽  
pp. 81-94
Author(s):  
Olaf Jahn ◽  
Edwin E. Vargas Grefa ◽  
Karl-L. Schuchmann
Keyword(s):  
Life History ◽  
Activity Pattern ◽  
Central American ◽  
North West ◽  
Daytime Activity ◽  
South West ◽  
History Of ◽  
Display Behaviour ◽  
Male Activity ◽  
Observation Period

SummaryThe rare and threatened Long-wattled Umbrellabird Cephalopterus penduliger inhabits the canopy and mid-storey level of humid to wet foothill and montane forests (150–1,800 m)of the Andean slopes of south-west Colombia and western Ecuador. Here we report on male activity pattern and display behaviour observed at one of two leks recently discovered in the vicinity of Playa de Oro, Rio Santiago, Esmeraldas Province, north-west Ecuador. Courtship behaviour of C. penduliger is compared with the Central American and Amazonian congeners (Bare-necked Umbrellabird C. glabricollis and Amazonian Umbrellabird C. ornatus). The lek of C. penduliger was active during the whole study period (February 1997 to January 1998), but both lek structure and daytime activity pattern changed markedly within the observation period.

Distribution and Life History of a Central American Frog, Rana vibicaria

Copeia ◽  
1964 ◽  
Vol 1964 (2) ◽  
pp. 300 ◽  
Author(s):  
Richard G. Zweifel
Keyword(s):  
Life History ◽  
Central American ◽  
History Of ◽  
American Frog

scholarly journals Notes on the Life Cycle and Natural History of Dismorphia Virgo (Lepidoptera Pieridae: Dismorphiinae) in Costa Rica

1972 ◽  
Vol 79 (3) ◽  
pp. 165-178 ◽  
Author(s):  
Allen M. Young
Keyword(s):  
Life Cycle ◽  
Costa Rica ◽  
Natural History ◽  
Taxonomic Status ◽  
Central American ◽  
South American ◽  
Species Status ◽  
New Information ◽  
History Of ◽  
The Common

This paper summarizes the life cycle and some aspects of natural history of the tropical pierid, Dismorphia virgo (Dismorphiinae) in Costa Rica. The precise taxonomic status of the butterfly in Central America has not been established, and it may represent a variable northern isolate of the common South American D. critomedia. Therefore, independent of whether the Central American form discussed in this paper has achieved full species status as the more northern virgo or is a subspecies or variety of critomedia evolving towards species status, this paper provides new information on the biology of the butterfly in Costa Rica. The establishment of precise taxonomic position awaits further study, and for the present purpose, I refer to the butterfly as D. virgo.

Neogene paleoenvironments of the Bocas del Toro Basin, Panama

1993 ◽  
Vol 67 (5) ◽  
pp. 699-710 ◽  
Author(s):  
Laurel S. Collins
Keyword(s):  
Central American ◽  
Caribbean Region ◽  
Bocas Del Toro ◽  
Late Pliocene ◽  
East Pacific ◽  
Foraminiferal Species ◽  
Southern Central ◽  
The Caribbean ◽  
Middle Pliocene ◽  
Central American Isthmus

Outcrops of upper Miocene to upper Pliocene sediments in the Bocas del Toro Basin, Caribbean coast of western Panama, contain a record of the emergence of the southern Central American isthmus. Paleodepths and characteristics of past sedimentary regimes within the basin were determined from benthic foraminiferal species assemblages. The present Valiente Peninsula shallowed from upper bathyal depths of about 300–500 m to outer neritic depths of 150–200 m between latest Miocene (5.6–6.5 Ma) and middle Pliocene (3.5–3.6 Ma) times. Outer neritic assemblages from about 100–150 m paleodepth on the island of Escudo de Veraguas indicate negligible emergence through the late Pliocene, and their present sea-level altitude suggests rapid Quaternary shallowing. Middle neritic foraminiferal assemblages of Cayo Agua island shallowed from depths of about 40–80 m to 20–40 m between early (4.5–5.0 Ma) and middle (3.5–3.6 Ma) Pliocene times. Cayo Agua assemblages indicate establishment of a carbonate regime in the southwestern Caribbean region prior to complete closure of the Caribbean–East Pacific seaway around 3.5 Ma.

scholarly journals El hombre de Montserrat: writings on violence in the latin american crime fiction

2018 ◽  
Vol 20 (1) ◽  
pp. 142-160
Author(s):  
Víctor Manuel Sanchis Amat
Keyword(s):  
American Literature ◽  
Latin American ◽  
Crime Fiction ◽  
Central American ◽  
The Novel ◽  
Detective Novel ◽  
Theoretical Terms ◽  
Central American Literature ◽  
Latin American Narrative ◽  
History Of

Abstract: The article adresses the novel El hombre de Montserrat, written by the Guatemalan writer Dante Liano and recognized within the genre of crime fiction, as a precursory model for a narrative that established a way of rewriting the history of violence in Central American countries in both fictional and theoretical terms. Dante Liano’s successful reception has turned the novel into a reference of the Central American literature of the nineties. This is due to the fact that his narrative is replete with mechanisms that were seen in the best works of the previous Latin American narrative, far from the great discourses, by a displaying genre hybridization, a parodic transgression or lexical localism. This article analyses the interweaving of genres and the subversion of the plot, the characters and the rewriting of the history against the postulates of the classic detective novel.

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