Erosion and deposition by supercritical density flows during channel avulsion and backfilling: Field examples from coarse-grained deepwater channel-levée complexes (Sandino Forearc Basin, southern Central America)

2017 ◽  
Vol 349 ◽  
pp. 79-102 ◽  
Author(s):  
Jörg Lang ◽  
Christian Brandes ◽  
Jutta Winsemann
Keyword(s):  
Central America ◽  
Coarse Grained ◽  
Forearc Basin ◽  
Erosion And Deposition ◽  
Channel Avulsion ◽  
Southern Central ◽  
Deepwater Channel

scholarly journals First record of Clay-colored Sparrow (Spizella pallida Swainson, 1832) (Aves: Emberizidae) in Costa Rica

Check List ◽  
2013 ◽  
Vol 9 (6) ◽  
pp. 1592
Author(s):  
Steven Aguilar ◽  
Julio E. Sánchez ◽  
Daniel Martínez
Keyword(s):  
Costa Rica ◽  
Central America ◽  
First Record ◽  
Adult Bird ◽  
Southern Central ◽  
Wintering Range

We present the first record of the Clay-colored Sparrow (Spizella pallida) in Costa Rica. An adult bird was recorded ca. 900 Km south of its common wintering range. This represents the first record of the species for the country and for southern Central America.

The invasive speciesCylindrodesmus hirsutusPocock (Diplopoda: Polydesmida: Haplodesmidae) spreads to the northern Caribbean, with a compilation of published localities

2018 ◽  
Vol 38 (4) ◽  
pp. 299-302
Author(s):  
Ernesto Recuero
Keyword(s):  
Central America ◽  
First Record ◽  
Quintana Roo ◽  
Commercial Activity ◽  
Tropical Regions ◽  
New Mexican ◽  
Cozumel Island ◽  
Southern Central ◽  
The Caribbean ◽  
Mexican Species

AbstractMillipede diversity in tropical regions, and in Mexico in particular, is still mostly unknown. A modest but recurrent source of new Mexican species is the colonization of exotic species, due to human activity. The invasive speciesCylindrodesmus hirsutusPocock, 1889 has spread from its area of origin in Indonesia or Melanesia and become a virtually pantropical species. Although long known from South and Central America, reports from the Caribbean are sparse and limited to some eastern islands and southern Central America. On 9 March 2016, two adult specimens were found on Cozumel Island, Quintana Roo, in an area of medium semideciduous tropical forest. This paper comprises the first record of this species from Mexico and the northern Caribbean. Given the intense commercial activity in the region, the presence of more populations both in Cozumel Island and in the mainland coast is highly probable.

Acacia glauca (wild dividivi).

2021 ◽  
Author(s):  
Nick Pasiecznik
Keyword(s):  
Central America ◽  
Leucaena Leucocephala ◽  
West Indian ◽  
The Philippines ◽  
Tropical America ◽  
Southern Central ◽  
Shrubby Species

Abstract A shrubby species (to 5 m tall) from tropical America, where it is common in parts of southern Central America and on many West Indian Islands, in particular on Curacao and Barbados. Since its introduction in the 1920s, it has become naturalized in the Philippines and Indonesia. Its habit is similar to shrubby forms of Leucaena leucocephala (the two species are sometimes confused, but the twigs of A. glauca are more reddish and its pods shorter and more rounded).

Lectotypification of Warszewiczia pulcherrima (Rubiaceae) with notes on Józef Warszewicz’s plant collection preserved at KRA herbarium from his trips to Central and South America

Phytotaxa ◽  
2020 ◽  
Vol 442 (1) ◽  
pp. 47-51
Author(s):  
MARCIN NOBIS ◽  
TOMASZ GŁUSZAK ◽  
ALICJA ZEMANEK ◽  
BOGDAN ZEMANEK
Keyword(s):  
South America ◽  
Central America ◽  
Plant Collection ◽  
Southern Central ◽  
Northern South America

Warszewiczia Klotzsch (1853: 497) is a Neotropical genus of the tribe Condamineeae (Rova et al. 2002, Duncan 2007, Bremer & Eriksson 2009, Kainulainen et al. 2010, Delprete 2019), family Rubiaceae. The genus comprises seven well-distinguished species (Pantoja 1994, Tropicos 1995+) distributed in southern Central America and northern South America (Pantoja 1994, Lorence 1999, Kainulainen et al. 2010, Baksh-Comeau et al. 2016).

Sedimentology and structure of the trench-slope to forearc basin transition in the Mesozoic of Alexander Island, Antarctica

1993 ◽  
Vol 130 (6) ◽  
pp. 737-754 ◽  
Author(s):  
P. A. Doubleday ◽  
D. I. M. Macdonald ◽  
P. A. R. Nell
Keyword(s):  
Sedimentary Rocks ◽  
Accretionary Prism ◽  
Coarse Grained ◽  
Accretionary Complex ◽  
Forearc Basin ◽  
Marine Transgression ◽  
Tectonic Events ◽  
The World ◽  
Basin Formation ◽  
Trench Slope

AbstractThe Mesozoic forearc of Alexander Island, Antarctica, is one of the few places in the world where the original stratigraphic relationship between a forearc basin and an accretionary complex is exposed. Newlydiscovered sedimentary rocks exposed at the western edge of the forearc basin fill (the Kimmeridgian–Albian Fossil Bluff Group) record the events associated with the basin formation. These strata are assigned to the newly defined Selene Nunatak Formation (?Bathonian) and Atoll Nunataks Formation (?Bathonian-Tithonian) within the Fossil Bluff Group.The Selene Nunatak Formation contains variable thicknesses of conglomeratesand sandstones, predominantly derived from the LeMay Group accretionary complex upon which it is unconformable. The formation marks emergence and subsequent erosion of the inner forearc area. It is conformably overlain by the1 km thick Atoll Nunataks Formation, characterized by thinly-bedded mudstones and silty mudstones representing a marine transgression followed by trench-slope deposition. The Atoll Nunataks Formation marks a phase of subsidence, possibly in response to tectonic events in the accretionary prism that are known to have occurred at about the same time.The Atoll Nunataks Formation is conformably overlain by the Himalia Ridge Formation, a thick sequence of basin-wide arc-derived conglomerates. This transition from fine- to coarse-grained deposition suggests that a well-developed depositional trough (and hence trench-slope break) had formed by that time. The Atoll Nunataks Formation therefore spans the formation of the forearc basin, and marks the transition from trench-slope to forearc basin deposition.

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