scholarly journals Stability of plant communities along a tropical inselberg ecotone in French Guiana (South America)

Flora ◽  
2010 ◽  
Vol 205 (10) ◽  
pp. 682-694 ◽  
Author(s):  
Corinne Sarthou ◽  
Denis Larpin ◽  
Émile Fonty ◽  
Sandrine Pavoine ◽  
Jean-François Ponge
Keyword(s):  
South America ◽  
Plant Communities ◽  
French Guiana ◽  
Stability Of Plant Communities

scholarly journals First Assessment of the Benthic Meiofauna Sensitivity to Low Human-Impacted Mangroves in French Guiana

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 338
Author(s):  
Claire Michelet ◽  
Daniela Zeppilli ◽  
Cédric Hubas ◽  
Elisa Baldrighi ◽  
Philippe Cuny ◽  
...  
Keyword(s):  
South America ◽  
French Guiana ◽  
Ecological Status ◽  
Organic Enrichment ◽  
Strongly Correlated ◽  
Trophic Groups ◽  
Ecological State ◽  
Spatio Temporal ◽  
De Man ◽  
Main City

Bioindicators assess the mangroves ecological state according to the types of pressures but they differ with the ecosystem’s specificities. We investigated benthic meiofauna diversity and structure within the low human-impacted mangroves in French Guiana (South America) in response to sediment variables with various distances to the main city. Contaminant’s concentrations differed among the stations, but they remained below toxicity guidelines. Meiofauna structure (Foraminifera, Kinorhyncha, Nematoda) however varied accordingly. Nematode’s identification brought details on the sediment’s quality. The opportunistic genus Paraethmolaimus (Jensen, 1994) strongly correlated to the higher concentrations of Hg, Pb. Anoxic sediments were marked by organic enrichment in pesticides, PCB, and mangrove litter products and dominance of two tolerant genus, Terschellingia (de Man, 1888) and Spirinia (Gerlach, 1963). In each of these two stations, we found many Desmodora individuals (de Man, 1889) with the presence of epibionts highlighting the nematodes decreased fitness and defenses. Oxic sediments without contaminants were distinguished by the sensitive genera Pseudocella (Filipjev, 1927) and a higher diversity of trophic groups. Our results suggested a nematodes sensitivity to low contaminants concentrations. Further investigations at different spatio-temporal scales and levels of deterioration, would be necessary to use of this group as bioindicator of the mangroves’ ecological status.

scholarly journals Human Q Fever on the Guiana Shield and Brazil: Recent Findings and Remaining Questions

2021 ◽  
Author(s):  
Loïc Epelboin ◽  
Carole Eldin ◽  
Pauline Thill ◽  
Vincent Pommier de Santi ◽  
Philippe Abboud ◽  
...  
Keyword(s):  
South America ◽  
Geographical Distribution ◽  
Coxiella Burnetii ◽  
French Guiana ◽  
Q Fever ◽  
Guiana Shield ◽  
Animal Reservoir ◽  
The World ◽  
Unique Strain ◽  
Amazonian Region

Abstract Purpose of Review In this review, we report on the state of knowledge about human Q fever in Brazil and on the Guiana Shield, an Amazonian region located in northeastern South America. There is a contrast between French Guiana, where the incidence of this disease is the highest in the world, and other countries where this disease is practically non-existent. Recent Findings Recent findings are essentially in French Guiana where a unique strain MST17 has been identified; it is probably more virulent than those usually found with a particularly marked pulmonary tropism, a mysterious animal reservoir, a geographical distribution that raises questions. Summary Q fever is a bacterial zoonosis due to Coxiella burnetii that has been reported worldwide. On the Guiana Shield, a region mostly covered by Amazonian forest, which encompasses the Venezuelan State of Bolivar, Guyana, Suriname, French Guiana, and the Brazilian State of Amapá, the situation is very heterogeneous. While French Guiana is the region reporting the highest incidence of this disease in the world, with a single infecting clone (MST 117) and a unique epidemiological cycle, it has hardly ever been reported in other countries in the region. This absence of cases raises many questions and is probably due to massive under-diagnosis. Studies should estimate comprehensively the true burden of this disease in the region.

Xanthomonas campestris pv. vasculorum. [Distribution map].

1984 ◽  
Author(s):  
Keyword(s):  
South Africa ◽  
Puerto Rico ◽  
South America ◽  
Central America ◽  
West Indies ◽  
Xanthomonas Campestris ◽  
French Guiana ◽  
Saccharum Officinarum ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Xanthomonas campestris pv. vasculorum (Cobb) Dye. Hosts: Sugarcane (Saccharum officinarum). Information is given on the geographical distribution in AFRICA, Ghana, Madagascar, Madeira, Malawi, Mauritius, Mozambique, Reunion, South Africa (Natal), Swaziland, Zimbabwe, ASIA, AUSTRALASIA & OCEANIA, New Guinea, NORTH AMERICA, Mexico, CENTRAL AMERICA & WEST INDIES, Belize, Dominica, Dominican Republic, Panama, Puerto Rico, St. Kitts and Nevis, SOUTH AMERICA, Argentina (Tucuman), Brazil, Colombia, French Guiana.

Mycena citricolor. [Distribution map].

1975 ◽  
Author(s):  
Keyword(s):  
Puerto Rico ◽  
Costa Rica ◽  
North America ◽  
South America ◽  
Dominican Republic ◽  
Central America ◽  
West Indies ◽  
French Guiana ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Mycena citricolor (Berk. & Curt.) Sacc. Hosts: Coffee (Coffea spp.) and others. Information is given on the geographical distribution in NORTH AMERICA, Mexico, USA (Florida), CENTRAL AMERICA & WEST INDIES, Costa Rica, Cuba, Dominica, Dominican Republic, Guadeloupe, Guatemala, Haiti, Honduras, Jamaica, Martiniq, caragua, Panama, Puerto Rico, Salvador, Trinidad, SOUTH AMERICA, Brazil, Bolivia, Colombia, Ecuador, French, Guiana, Guyana, Peru, Surinam, Venezuela.

Typophorus nigritus. [Distribution map].

1991 ◽  
Author(s):  
Keyword(s):  
Costa Rica ◽  
South America ◽  
Central America ◽  
Sweet Potato ◽  
Geographical Distribution ◽  
French Guiana ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Typophorus nigritus (Fabricius) Coleoptera: Chrysomelidae, Eumolpinae. Attacks sweet-potato. Information is given on the geographical distribution in CENTRAL AMERICA and CARIBBEAN, Costa Rica, Cuba, Grenada, Grenadine Islands, Guatemala, Honduras, Mexico, Nicaragua, Panama, St. Vincent, Trinidad, SOUTH AMERICA, Argentina, Bolivia, Brazil, Colombia, Equador, French Guiana, Guyana, Paraguay, Peru, Uruguay, Venezuela.

Diaprepes abbreviatus. [Distribution map].

1980 ◽  
Author(s):  
Keyword(s):  
North America ◽  
South America ◽  
Geographical Distribution ◽  
Sugar Cane ◽  
West Indies ◽  
Host Plants ◽  
French Guiana ◽  
Distribution Map ◽  
Diaprepes Abbreviatus ◽  
New Distribution

Abstract A new distribution map is provided for Diaprepes abbreviatus (L.) (Col., Curculionidae) (Citrus Weevil). Host Plants: Citrus, cassava, maize, sugar cane. Information is given on the geographical distribution in NORTH AMERICA, USA, WEST INDIES, SOUTH AMERICA, French Guiana.

Mycosyrinx cissi. [Distribution map].

1993 ◽  
Author(s):  
Keyword(s):  
Puerto Rico ◽  
North America ◽  
South America ◽  
Dominican Republic ◽  
Central America ◽  
Sierra Leone ◽  
West Indies ◽  
French Guiana ◽  
Distribution Map ◽  
New Distribution

Abstract A new distribution map is provided for Mycosyrinx cissi (DC.) G. Beck. Hosts: Cissus spp. Information is given on the geographical distribution in AFRICA, Congo, Ethiopia, Ghana, Guinea, Guinea, Nigeria, Sierra Leone, Tanzania, Uganda, Zaire, ASIA, India, Madras, Yemen, NORTH AMERICA, USA, Mexico, CENTRAL AMERICA & WEST INDIES, Bahamas, Belize, Costa Rica, Cuba, Dominica, Dominican Republic, Guatemala, Haiti, Honduras, Jamaica, Panama, Puerto Rico, St Croix, St Thomas, Trinidad, SOUTH AMERICA, Bolivia, Brazil, Colombia, Ecuador, French, Guiana, Guyana, Peru, Venezuela.

Leucocintractia scleriae. [Descriptions of Fungi and Bacteria].

2002 ◽  
Author(s):  
J. M. Pérez
Keyword(s):  
Puerto Rico ◽  
Costa Rica ◽  
North America ◽  
South America ◽  
Central America ◽  
Geographical Distribution ◽  
French Guiana ◽  
Disease Development ◽  
British Guiana

Abstract A description is provided for Leucocintractia scleriae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Development of spikelets is prevented in infected plants. HOSTS: Rhynchospora corymbosa, R. gigantea and R. triflora (Cyperaceae). GEOGRAPHICAL DISTRIBUTION: AFRICA: Congo, Zaire. NORTH AMERICA: Mexico. CENTRAL AMERICA: Costa Rica, Cuba, Honduras, Puerto Rico. SOUTH AMERICA: Colombia, French Guiana, Guyana [as British Guiana], Paraguay, Venezuela. ASIA: China (Taipei), India, Indonesia, Singapore, Taiwan. AUSTRALASIA: Australia (Queensland). TRANSMISSION: Not studied; probably by teliospores dispersed by wind and water.

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