Easterly Waves And Precipitation Over Northern South America And The Caribbean

2021 ◽  
Author(s):  
Santiago Giraldo‐Cardenas ◽  
Paola A. Arias ◽  
Sara C. Vieira ◽  
Manuel D. Zuluaga
Keyword(s):  
South America ◽  
Easterly Waves ◽  
The Caribbean ◽  
Northern South America

scholarly journals Fall and Winter Movements of Newfoundland Graycheeked Thrushes (Catharus Minimus Minimus)

2018 ◽  
Vol 5 (1) ◽  
pp. 42-48 ◽  
Author(s):  
Darroch M. Whitaker ◽  
Ian G. Warkentin ◽  
Keith A. Hobson ◽  
Peter Thomas ◽  
Rinchen Boardman
Keyword(s):  
South America ◽  
Central America ◽  
Sierra Nevada ◽  
Winter Habitat ◽  
Winter Range ◽  
Contemporary Research ◽  
The Caribbean ◽  
Northern South America ◽  
Migratory Stopover

Abstract The Newfoundland subspecies of Gray-cheeked Thrush (Catharus minimus minimus) has declined since the 1980s and degradation of winter habitat has been suggested as a contributing stressor. However, the winter range of this subspecies is not well understood, so we fitted 29 males with archival GPS tags during summer 2016. Four tagged thrushes were recaptured in summer 2017 and, though all tags had missing locations and broken antennae, the data retrieved showed that one thrush wintered in the Sierra Nevada de Santa Marta (SNSM) in northern Colombia, one in the nearby Sierra de Perija in Venezuela, and a third may have settled in the same region. One tag provided locations until April 21 and that thrush was consistently detected within a ~1 ha area through the winter. Locations obtained during fall migration indicated that thrushes travelled to South America via Central America and possibly by directly crossing the Caribbean. Contemporary research indicates that the SNSM is an important migratory stopover for Northern Gray-cheeked Thrushes (C. m. aliciae) but a historical report coupled with our observations suggest winter use of the SNSM and adjacent areas in northern South America by C. m. minimus, though numbers may be lower than during the 1900s.

scholarly journals Paleo American finds from Venezuela: evidence to discuss the spread of Fell Points and the peopling of Northern South America

2016 ◽  
Vol 29 (45) ◽  
pp. 212 ◽  
Author(s):  
Hugo G. Nami
Keyword(s):  
South America ◽  
Continental Shelf ◽  
Additional Data ◽  
Caribbean Sea ◽  
Hunter Gatherers ◽  
Human Dispersal ◽  
Manufacturing Procedure ◽  
Human Colonization ◽  
The Caribbean ◽  
Northern South America

 “Fishtail” or just “Fell” points represent an excellent marker to know and discuss the existence of colonizers hunter-gatherers living in Central and South America during the end of the Pleistocene at about 11000-10000 14C yr BP. Investigations of Venezuelan fishtail points yielded additional data on their manufacturing procedure to help discuss the human colonization of northern South America. The finds from northern Venezuela on the Caribbean Sea yielded a link arguing for the use of the Atlantic slope and the current continental shelf during human dispersal in South America.“Rabo de peixe” ou somente pontas Fell representam um excelente indicador para conhecer e discutir a existência de colonizadores caçadores-coletores que viveram na América Central e do Sul durante o final do Pleistoceno há aproximadamente 11.000-10.000 14C anos AP. Pesquisas com pontas Rabo de peixe da Venezuela proporcionaram dados adicionais sobre o seu processo de fabricação contribuindo na discussão da colonização humana do norte da América do Sul. As descobertas do norte da Venezuela no Mar do Caribe defendem a utilização da vertente Atlântica e da plataforma continental atual durante a dispersão humana na América do Sul.

scholarly journals First record of Elga leptostyla Ris, 1911 (Odonata, Libellulidae) from Costa Rica

Check List ◽  
2020 ◽  
Vol 16 (4) ◽  
pp. 911-914
Author(s):  
Jareth Román-Heracleo ◽  
Monika Springer
Keyword(s):  
Costa Rica ◽  
South America ◽  
First Record ◽  
The Caribbean ◽  
Northern South America ◽  
Biological Reserve

During research in the Tirimbina Biological Reserve, on the Caribbean slope of Costa Rica, we captured adult specimens and reared larvae of the dragonfly Elga leptostyla Ris, 1911, which belongs to the Libellulidae. This species was previously reported only from southern Panama to northern South America. Therefore, this is the first record of the species and genus from Costa Rica, increasing the number of Libellulidae species recorded in the country to 95. This species’ known distribution is northwards.

scholarly journals Origins and genetic legacies of the Caribbean Taino

2018 ◽  
Vol 115 (10) ◽  
pp. 2341-2346 ◽  
Author(s):  
Hannes Schroeder ◽  
Martin Sikora ◽  
Shyam Gopalakrishnan ◽  
Lara M. Cassidy ◽  
Pierpaolo Maisano Delser ◽  
...  
Keyword(s):  
Native American ◽  
South America ◽  
Population Size ◽  
Ancient Dna ◽  
Effective Population ◽  
The Bahamas ◽  
Dna Preservation ◽  
Large Effective Population Size ◽  
The Caribbean ◽  
Northern South America

The Caribbean was one of the last parts of the Americas to be settled by humans, but how and when the islands were first occupied remains a matter of debate. Ancient DNA can help answering these questions, but the work has been hampered by poor DNA preservation. We report the genome sequence of a 1,000-year-old Lucayan Taino individual recovered from the site of Preacher’s Cave in the Bahamas. We sequenced her genome to 12.4-fold coverage and show that she is genetically most closely related to present-day Arawakan speakers from northern South America, suggesting that the ancestors of the Lucayans originated there. Further, we find no evidence for recent inbreeding or isolation in the ancient genome, suggesting that the Lucayans had a relatively large effective population size. Finally, we show that the native American components in some present-day Caribbean genomes are closely related to the ancient Taino, demonstrating an element of continuity between precontact populations and present-day Latino populations in the Caribbean.

scholarly journals The African Easterly Waves over Northern South America

Proceedings ◽  
2017 ◽  
Vol 1 (5) ◽  
pp. 165 ◽  
Author(s):  
Santiago Giraldo Cárdenas ◽  
Paola A. Arias ◽  
Sara C. Vieira
Keyword(s):  
South America ◽  
African Easterly Waves ◽  
Easterly Waves ◽  
Northern South America

scholarly journals Distribution extension in Colombia and new records for Brazil of Micrurus isozonus (Cope, 1860) (Squamata, Serpentes, Elapidae)

Check List ◽  
2013 ◽  
Vol 9 (5) ◽  
pp. 1108
Author(s):  
Darlan Tavares Feitosa ◽  
Matheus Godoy Pires ◽  
Ana Lúcia Da Costa Prudente ◽  
Nelson Jorge da Silva Jr.
Keyword(s):  
South America ◽  
New Records ◽  
Atlantic Coast ◽  
Mountainous Region ◽  
Morphometric Data ◽  
Andean Region ◽  
Caribbean Coast ◽  
Northern Brazil ◽  
The Caribbean ◽  
Northern South America

Micrurus isozonus is a triadal coralsnake occurring in northern Venezuela, eastern Colombia, southern Guyana, and in the extreme northern Brazil. In this paper we firstly publish vouchers to Brazil, and report additional records from three localities in the mountainous region of Taião and Apiaú, state of Roraima. We also extend its known range to the Trans-Andean region in the Atlantic coast of northern South America, municipality of Cartagena at the Caribbean coast of Colombia. Additionally, we present meristic and morphometric data, including the species sintypes.

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