scholarly journals Digitaria fuscescens (yellow crab grass).

2020 ◽  
Author(s):  
Jeanine Vélez-Gavilán
Keyword(s):  
South America ◽  
Perennial Grass ◽  
French Polynesia ◽  
Tropical Plants ◽  
Turf Grass ◽  
Disturbed Soils ◽  
Chagos Archipelago

Abstract D. fuscescens is an annual, to perennial grass that is a weed of cultivated crops and disturbed soils (Useful Tropical Plants, 2016). It is also a weed of turf grass (Uddin et al., 2012). The species is listed as invasive in Asia (Chagos Archipelago), South America (Colombia, Peru) and Oceania (Fiji, French Polynesia, USA-Hawaii) (PIER, 2016).

scholarly journals Transmission dynamics of Zika virus in island populations: a modelling analysis of the 2013-14 French Polynesia outbreak

2016 ◽  
Author(s):  
Adam J. Kucharski ◽  
Sebastian Funk ◽  
Rosalind M. Eggo ◽  
Henri-Pierre Mallet ◽  
W. John Edmunds ◽  
...  
Keyword(s):  
South America ◽  
Dengue Virus ◽  
Zika Virus ◽  
French Polynesia ◽  
Neurological Complications ◽  
Transmission Dynamics ◽  
Guillain Barre Syndrome ◽  
Island Populations ◽  
The Pacific ◽  
Guillain Barré

AbstractBetween October 2013 and April 2014, more than 30,000 cases of Zika virus (ZIKV) disease were estimated to have attended healthcare facilities in French Polynesia. ZIKV has also been reported in Africa and Asia, and in 2015 the virus spread to South America and the Caribbean. Infection with ZIKV has been associated with neurological complications including Guillain-Barré Syndrome (GBS) and microcephaly, which led the World Health Organization to declare a Public Health Emergency of International Concern in February 2015. To better understand the transmission dynamics of ZIKV, we used a mathematical model to examine the 2013–14 outbreak on the six major archipelagos of French Polynesia. Our median estimates for the basic reproduction number ranged from 2.6–4.8, with an estimated 11.5% (95% CI: 7.32–17.9%) of total infections reported. As a result, we estimated that 94% (95% CI: 91–97%) of the total population of the six archipelagos were infected during the outbreak. Based on the demography of French Polynesia, our results imply that if ZIKV infection provides complete protection against future infection, it would take 12–20 years before there are a sufficient number of susceptible individuals for ZIKV to reemerge, which is on the same timescale as the circulation of dengue virus serotypes in the region. Our analysis suggests that ZIKV may exhibit similar dynamics to dengue virus in island populations, with transmission characterized by large, sporadic outbreaks with a high proportion of asymptomatic or unreported cases.Author SummarySince the first reported major outbreak of Zika virus disease in Micronesia in 2007, the virus has caused outbreaks throughout the Pacific and South America. Transmitted by the Aedes species of mosquitoes, the virus has been linked to possible neurological complications including Guillain-Barre Syndrome and microcephaly. To improve our understanding of the transmission dynamics of Zika virus in island populations, we analysed the 2013–14 outbreak on the six major archipelagos of French Polynesia. We found evidence that Zika virus infected the majority of population, but only around 12% of total infections on the archipelagos were reported as cases. If infection with Zika virus generates lifelong immunity, we estimate that it would take at least 15–20 years before there are enough susceptible people for the virus to reemerge. Our results suggest that Zika virus could exhibit similar dynamics to dengue virus in the Pacific, producing large but sporadic outbreaks in small island populations.

scholarly journals Trachypogon spicatus (spiked crinkleawn).

2020 ◽  
Author(s):  
Julissa Rojas-Sandoval
Keyword(s):  
North America ◽  
South America ◽  
Plant Species ◽  
Invasive Plant ◽  
Perennial Grass ◽  
Distribution Range ◽  
Invasive Plant Species ◽  
Native Range

Abstract Trachypogon spicatus is a perennial grass with a large native distribution range extending from North America to South America, and across tropical and subtropical Africa. This species is weedy within its native range and is considered a weed of plantations in Tanzania and a weed of pastures across Africa. Despite being included in a list of invasive plant species in Cuba, no information is provided regarding its impact, and another source records T. spicatus as native to Cuba.

scholarly journals Digitaria eriantha (pangola grass).

2020 ◽  
Author(s):  
Jeanine Vélez-Gavilán
Keyword(s):  
Invasive Species ◽  
Costa Rica ◽  
South America ◽  
Central America ◽  
Perennial Grass ◽  
Riparian Areas ◽  
Digitaria Eriantha ◽  
The Caribbean ◽  
Tropical Forages ◽  
Viable Seeds

Abstract D. eriantha is a perennial grass not considered as a serious weed in some countries, but a competitive and aggressive weed in others (PROTA, 2016; Tropical Forages, 2016; Weeds of Australia, 2016). The species is listed as invasive in Central America (Costa Rica), the Caribbean (Cuba), South America (Colombia, Ecuador) and Oceania (Australia, USA-Hawaii) (Oviedo Prieto et al., 2012; PIER, 2016). Catasús Guerra (2015), however, argues that the species should not be on the list of the invasive species for Cuba, due to lack of spread as it is being over-grazed and not producing viable seeds. It is on the list of the top 200 most invasive species in Queensland, Australia, forming dense populations in riparian areas, open woodlands and on some beaches (Weeds of Australia, 2016).

scholarly journals Paspalum dilatatum (dallisgrass).

2020 ◽  
Author(s):  
Jeanine Vélez-Gavilán
Keyword(s):  
New Zealand ◽  
Native Species ◽  
New Caledonia ◽  
Solomon Islands ◽  
Perennial Grass ◽  
French Polynesia ◽  
American Samoa ◽  
Paspalum Dilatatum ◽  
Minor Outlying ◽  
Norfolk Island

Abstract Paspalum dilatatum is a perennial grass native to South America that has been introduced into tropical and subtropical areas as a forage species/fodder. It is reported as invasive in Japan, Malaysia, Taiwan, Vietnam, Indonesia, Philippines, Hawaii, American Samoa, Australia, Fiji, French Polynesia, New Caledonia, New Zealand, Niue, Norfolk Island, Solomon Islands and the Minor Outlying Islands. In Hawaii and New Zealand, it forms dense stands that smother and prevent recruitment of native species.

Cladosporium cucumerinum. [Distribution map].

1978 ◽  
Author(s):  
Keyword(s):  
South Africa ◽  
Puerto Rico ◽  
South America ◽  
Central America ◽  
West Indies ◽  
Prince Edward Island ◽  
French Polynesia ◽  
Distribution Map ◽  
Cladosporium Cucumerinum ◽  
New Distribution

Abstract A new distribution map is provided for Cladosporium cucumerinum Ell. & Arth. Hosts: Cucurbitaceae. Information is given on the geographical distribution in AFRICA, Kenya, Mauritius, Morocco, Rhodesia, South Africa, ASIA, China (E.), India, Iran, Israel, Japan, Korea, Lebanon, Pakistan, Thailand, Turkey, USSR, Yemen, AUSTRALASIA & OCEANIA, French Polynesia, EUROPE, Austria, Bulgaria, Czechoslovakia, Denmark, England and Wales (Channel Islands Jersey), Finland, France (S.W.), Germany, Greece, Netherlands, Norway, Poland, Portugal, Romania, Sweden, USSR (Crimea; Kirov; Lithuania; Estonia; Urals), Yugoslavia, NORTH AMERICA, Canada (Manitoba, NB, Nova Scotia, Ontario, Prince Edward Island, Quebec), Mexico, USA (General), CENTRAL AMERICA & WEST INDIES, Barbados, Cuba, Panama, Puerto Rico, Trinidad, SOUTH AMERICA, Chile (Arica).

Cerataphis orchidearum. [Distribution map].

2008 ◽  
Author(s):  
Keyword(s):  
South Africa ◽  
Puerto Rico ◽  
South America ◽  
Central America ◽  
New South ◽  
Solomon Islands ◽  
French Polynesia ◽  
Distribution Map ◽  
South Wales ◽  
Distribution In Europe

Abstract A new geographic map is provided for Cerataphis orchidearum (Westwood). Hemiptera: Aphididae. Hosts: Orchidaceae. Information is given on the geographical distribution in Europe (Belgium, Finland, France, Hungary, Portugal, Russia, Spain, Sweden and UK), Asia (India, Indonesia and Myanmar), Africa (Angola, Kenya, Madagascar, Reunion, Rwanda, South Africa, Uganda and Zimbabwe), North America (California and Hawaii, USA), Central America and Carribean (Cuba, Jamaica and Puerto Rico), South America (Brazil, Colombia and Guyana) and Oceania (New South Wales and Queensland, Australia; Fiji; French Polynesia; and Solomon Islands).

The French Botanist Aimé Bonpland and Paleontology at Cuenca Del Plata

2002 ◽  
Vol 21 (2) ◽  
pp. 150-165 ◽  
Author(s):  
Eduardo Ottone
Keyword(s):  
Nineteenth Century ◽  
South America ◽  
Southern Brazil ◽  
Early Nineteenth Century ◽  
Tropical Plants ◽  
Alexander Von Humboldt ◽  
The Earth ◽  
Petrified Wood ◽  
Entre Rios

Mainly recognized in his role of naturalist-explorer by his travels with Alexander von Humboldt (1769-1859), and so by his studies on tropical plants from Central and South America, the French botanist Aimé Bonpland (1773-1858) pursued important paleontological investigations in Argentina, Uruguay, and southern Brazil. In the early nineteenth century, when the earth sciences were just developing at Cuenca del Plata, Bonpland collected invertebrates, mammal bones, and petrified wood. Most of his findings have never been published. A part of his collections has been held at the Muséum National d'Histoire Naturelle of Paris since 1837. Alcide d'Orbigny (1802-1857) studied the pelecypods collected by Bonpland in Entre Ríos province, Argentina, and named a species in his honor: Arca bonplandiana d'Orbigny.

scholarly journals Digitaria bicornis (Asian crabgrass).

2020 ◽  
Author(s):  
Jeanine Vélez-Gavilán
Keyword(s):  
North America ◽  
South America ◽  
El Salvador ◽  
Central America ◽  
Perennial Grass ◽  
The Caribbean

Abstract D. bicornis is an annual, sometimes perennial grass. It is listed as invasive in North America (Mexico), Central America (El Salvador, Guatemala, Honduras, Nicaragua, Panama), the Caribbean (Cuba), South America (Colombia, Ecuador) and Oceania (Nauru, USA-Hawaii) (Catasús Guerra, 2015; PIER, 2016). It is considered as a weed in cultivated fields (Quattrocchi, 2006; Dias et al., 2007; Duarte et al., 2009; Catasús Guerra, 2015; Ramírez S et al., 2015).

Phytophthora tropicalis. [Distribution map].

2015 ◽  
Author(s):  
Keyword(s):  
North Carolina ◽  
South Carolina ◽  
North America ◽  
South America ◽  
French Polynesia ◽  
Balearic Islands ◽  
Distribution Map ◽  
Woody Ornamentals ◽  
New Distribution ◽  
Distribution In Europe

Abstract A new distribution map is provided for Phytophthora tropicalis Aragaki and Uchida. Oomycetes: Peronosporales: Peronosporaceae. Hosts: plurivorous, especially woody ornamentals. Information is given on the geographical distribution in Europe (Germany, Italy, Mainland Italy, Sicily, Netherlands, Poland, Spain, Balearic Islands), Asia (Taiwan and Vietnam), North America (Mexico, USA, Hawaii, North Carolina, South Carolina, Tennessee and Virginia), South America (Brazil, Bahia) and Oceania (French Polynesia).

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