scholarly journals GNSS Networks for Geodynamics in the Caribbean, Northwestern South America, and Central America

2021 ◽  
Author(s):  
Héctor Mora-Páez ◽  
Franck Audemard

For several years, under the framework of national and international projects, the number of GNSS geodetic stations has been increasing in countries located in the area comprised by the Caribbean, northwestern South America and Central America. Data from these geodetic stations have made it possible not only to meet the needs for geospatial information in each of the countries, but also to get a better understanding about the geodynamic interaction of the Caribbean, South American, Nazca and Cocos plates, as well as tectonic blocks wedged in between these plates. This article presents a brief description of the tectonic framework, the existing geodetic networks and the results obtained using data from some stations in the study area.


Phytotaxa ◽  
2021 ◽  
Vol 486 (1) ◽  
pp. 1-105
Author(s):  
LAURA C. DE LANNOY ◽  
AYRTON I. DE OLIVEIRA ◽  
RENATO GOLDENBERG ◽  
DUANE F. LIMA

Myrtaceae is one of the largest families in number of species within the order Myrtales and one of the richest families in Brazil. Myrcia is the fourth largest genus of Myrtaceae, with approximately 770 species distributed from Central America and the Caribbean to southern South America. In Brazil Myrcia is represented by 397 species, of which 309 are endemic. In this study, we present the taxonomic treatment for all species of Myrcia that occur in Paraná state, Brazil. Analyses of herbarium specimens, online databases, and bibliography were performed. Fifty-three species of Myrcia occur in Paraná, distributed in all vegetation types. Twenty-three names were excluded from previous lists of species or listed as doubtful species. Neither of the recorded species is endemic to Paraná, but this state is the southern and northern limit of distribution of six and two species, respectively. We present an identification key, taxonomic descriptions, figures, maps, and comments on phenology, habitat, and morphology for each species.



2018 ◽  
Vol 5 (1) ◽  
pp. 42-48 ◽  
Author(s):  
Darroch M. Whitaker ◽  
Ian G. Warkentin ◽  
Keith A. Hobson ◽  
Peter Thomas ◽  
Rinchen Boardman

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.





2000 ◽  
Vol 21 (1) ◽  
pp. 75
Author(s):  
Gerard Behague ◽  
Dale A. Olsen ◽  
Daniel E. Sheehy


Zootaxa ◽  
2019 ◽  
Vol 4568 (2) ◽  
pp. 394
Author(s):  
DIEGO DUTRA SILVEIRA ◽  
ALINE BARCELLOS ◽  
ALEXANDER KNYSHOV

Hoplonannus McAtee & Maloch, 1925 comprises three species described from Central America. Females of all these species are known only from brachypterous specimens. This paper describes the first South American species of the genus, Hoplonannus australis sp. nov. The new species differs from its congeners, in females, by the submacroptery, presence of ocelli and a basal bulge in the seventh sternite; in males, it differs by the presence of a process in the eighth tergite and the right paramere bifurcate apically, with branches subparallel. These traits entail a new diagnosis for the genus. 



Zootaxa ◽  
2020 ◽  
Vol 4891 (1) ◽  
pp. 1-112
Author(s):  
FRANK E. KURCZEWSKI ◽  
RICK C. WEST ◽  
CECILIA WAICHERT ◽  
KELLY C. KISSANE ◽  
DARRELL UBICK ◽  
...  

New and unusual host records for 133 species and subspecies of Pompilidae predominantly from the southwestern United States, Mexico, Central America, and South America are presented in modified taxonomic order. First-time species host records are given for Calopompilus Ashmead, Pepsis Fabricius, Hemipepsis Dahlbom, Priocnessus Banks, Entypus Dahlbom, Pompilocalus Roig-Alsina, Sphictostethus Kohl, Auplopus Spinola, Ageniella Banks, Eragenia Banks, Aporus Spinola, Poecilopompilus Ashmead, Tachypompilus Ashmead, Anoplius Dufour, Priochilus (Fabricius) and Notocyphus Smith. New host spider families are introduced for Calopompilus, Pepsis, Hemipepsis, Priocnessus, Entypus, Cryptocheilus Panzer, Priocnemis Schiødte, Auplopus, Ageniella, Eragenia, Aporus, Tachypompilus, Anoplius, Priochilus and Notocyphus. Eight host spider families are reported from the Western Hemisphere for the first time: Halonoproctidae (Notocyphus dorsalis dorsalis Cresson); Dipluridae (Pepsis pretiosa Dahlbom, P. montezuma Smith, P. infuscate Spinola, P. atripennis Fabricius, P. martini Vardy, Priocnessus vancei Waichert and Pitts); Nemesiidae (Pepsis pallidolimbata Lucas, P. viridis Lepeletier, P. spp., Pompilocalus hirticeps (Guérin), Sphictostethus gravesii (Haliday), S. striatulus Roig-Alsina, Priocnemis oregona Banks); Barychelidae (Eragenia sp.); Paratropididae (Pepsis stella Montet); Trechaleidae (Hemipepsis toussainti (Banks), Entypus unifasciatus cressoni (Banks), Tachypompilus ferrugineus (Say), Tachypompilus unicolor cerinus Evans, Priochilus gloriosum (Cresson); Desidae (Ageniella accepta (Cresson), Sphictostethus isodontus Roig-Alsina) and Selenopidae (Priochilus scrupulum (Fox), Tachypompilus erubescens (Taschenberg) or xanthopterus (Rohwer)). The first known host records for the rare South American pompilid genera Chirodamus (Lycosidae: Lycosa sp.) and Herbstellus (Nemesiidae: Diplothelopsis cf bonariensis Mello-Leitão) are presented. 



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