THE LATERITIC BAUXITE DEPOSIT OF RONDON DO PARÁ: A NEW GIANT DEPOSIT IN THE AMAZON REGION, NORTHERN BRAZIL

Abstract Parasites are an important part of biodiversity, and knowledge of species and their relationship with their hosts helps in monitoring an ecosystem over time. The aim of this study was to investigate the fauna of metazoan parasites in Hemiodus unimaculatus from the Jari River, in the eastern Amazon region, northern Brazil. Of the fish examined, 96.7% were parasitized by one or more species, and a total of 336 parasites such as Dactylogyridae gen. sp.1, Dactylogyridae gen. sp.2, Dactylogyridae gen. sp.3, Dactylogyridae gen. sp.4, Gyrodactilydae gen. sp., Urocleidoides sp.1, Urocleidoides sp.2, Urocleidoides sp.3, metacercariae of Digenea gen. sp., Procamallanus (Spirocamallanus) inopinatus, Contracaecum sp., Neoechinorhynchus sp. and Acarina gen. sp. The parasite community showed low Brillouin diversity (0.58 ± 0.29), low evenness (0.44 ± 0.21) and low species richness (7.40 ± 3.83). There was a predominance of ectoparasites, mainly monogeneans and digeneans. The parasites showed an aggregate dispersion, except for P. (S.) inopinatus, which had a random dispersion. The size of the hosts had no effect on diversity, species richness and abundance of parasites, but other factors structured the parasite community. This is the first study on the parasite community and infracommunities in H. unimaculatus.

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A new species of Xenylla Tullberg, 1869 (Collembola: Hypogastruridae) from Central Amazon, Brazil

Zootaxa ◽

10.11646/zootaxa.4347.1.12 ◽

2017 ◽

Vol 4347 (1) ◽

pp. 187

Author(s):

ANA C. R. NEVES ◽

MARIA C. MENDONÇA

Keyword(s):

New Species ◽

Brazilian Amazon ◽

Amazon Region ◽

Amazon Forest ◽

Central Amazon ◽

Brazilian Amazon Region ◽

Northern Brazil ◽

A New Species

A new species of the cosmopolitan genus Xenylla Tullberg, 1869 is herein described and illustrated. The new species, Xenylla hodori sp. nov., from the Amazon Forest of Northern Brazil, resembles X. capixaba Fernandes & Mendonça, 2010 and X. welchi Folsom, 1916 due, the number of eyes, chaetotaxy head and shape of furca. X. hodori sp. nov. is the second species recorded for the Brazilian Amazon Region.

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Possible uses of kaolin wastes and transformed materials from the Amazon region (northern Brazil) for environmental applications

Chinese Journal of Geochemistry ◽

10.1007/bf02839781 ◽

2006 ◽

Vol 25 (S1) ◽

pp. 25-25

Author(s):

Romulo Simoes Angelica

Keyword(s):

Amazon Region ◽

Environmental Applications ◽

Northern Brazil

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Palaemonidae, Euryrhynchidae, and Sergestidae (Crustacea: Decapoda): records of native species from the states of Amapá and Pará, Brazil, with maps of geographic distribution

Check List ◽

10.15560/10.6.1300 ◽

2014 ◽

Vol 10 (6) ◽

pp. 1300 ◽

Cited By ~ 2

Author(s):

Fabiana Ribeiro Pimentel ◽

Célio Magalhães

Keyword(s):

Geographic Distribution ◽

Native Species ◽

Amazon Region ◽

Freshwater Shrimps ◽

Voucher Specimens ◽

Northern Brazil

A list of the distribution records for 18 species of freshwater shrimps of the families Euryrhynchidae (3 spp.), Palaemonidae (13 spp.) and Sergestidae (2 spp.) from the states of Amapá and Pará are presented. All records are documented by voucher specimens deposited in the three main carcinological collections from northern Brazil: Instituto de Pesquisas Científicas e Tecnológicas do Amapá (Macapá), Instituto Nacional de Pesquisas da Amazônia (Manaus), and Museu Paraense Emílio Goeldi (Belém). Maps of the geographic distribution of these records in the eastern Amazon region are offered, and comments on the zoogeography of the species are made.

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Updating the geographic records of social wasps (Vespidae: Polistinae) in Roraima state

Sociobiology ◽

10.13102/sociobiology.v64i3.1789 ◽

2017 ◽

Vol 64 (3) ◽

pp. 339 ◽

Cited By ~ 1

Author(s):

Paulo Cézar Salgado Barroso ◽

Alexandre Somavilla ◽

Rafael Boldrini

Keyword(s):

Light Trap ◽

Social Wasp ◽

Social Wasps ◽

Amazon Region ◽

Wasp Species ◽

Northern Brazil ◽

High Degree ◽

New Distribution ◽

Comprehensive Studies

The Roraima state in Brazil is part of Northern Amazon, an area harboring high biodiversity and high degree of endemism. Nevertheless, there are few studies on diversity of social wasps occurring in this region. This study presents a list of social wasps (Vespidae: Polistinae) collected actively and using Malaise, Suspended and Light trap in six localities in Roraima state. A total of 85 species of 14 genera were collected. Fourty-five of these species are new distribution records to Roraima state, some species are not common found in the collections and lists of species, and some are recorded for the second time to Brazil or the Amazon region. This increase may be an indication that the Polistinae richness is probably higher in the regions studied and that Roraima may well contain a number of additional (as yet unrecorded) social wasp species. More comprehensive studies are needed in order to increase the knowledge of wasp species in Roraima, contributing to increased knowledge of the diversity in Northern Brazil.

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Diversity of yeasts during fermentation of cocoa from two sites in the Brazilian Amazon

Acta Amazonica ◽

10.1590/1809-4392201703712 ◽

2019 ◽

Vol 49 (1) ◽

pp. 64-70 ◽

Cited By ~ 3

Author(s):

Silvana de F. Oliveira de ALMEIDA ◽

Letícia R Carvalho SILVA ◽

Gilson Celso A. Chagas JUNIOR ◽

Guilherme OLIVEIRA ◽

Silvia Helena Marques da SILVA ◽

...

Keyword(s):

Brazilian Amazon ◽

Amazon Region ◽

Starter Cultures ◽

Universal Primers ◽

Spontaneous Fermentation ◽

Zygosaccharomyces Bailii ◽

Brazilian Amazon Region ◽

Pichia Manshurica ◽

Northern Brazil

ABSTRACT The purpose of this study was to identify the yeasts involved in spontaneous fermentation of cocoa from the Brazilian Amazon region. The fermentation process was carried out experimentally with cocoa seeds from two sites (Medicilândia and Tucumã), State of Pará, northern Brazil, during a six-day period. Totals of 44 yeasts were isolated from Medicilândia and 29 from Tucumã. Molecular identification was carried out by sequencing the D1/D2 region fragment of the rRNA 26S gene, expanded with universal primers for the NL1GC and LS2 eukaryotes. Pichia manshurica and Saccharomyces cerevisiae were identified in Medicilândia and five yeast species (Pichia fermentans, P. kudriavzevii, P. manshurica, S. cerevisiae and Zygosaccharomyces bailii) were identified in Tucumã. The results showed that P. manshurica and S. cerevisiae may have potential for use as starter cultures in future studies to improve the quality of cocoa seeds fermented in the Brazilian Amazon region.

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Filling gaps in the distribution of the white-winged vampire bat, Diaemus youngii (Phyllostomidae, Desmodontinae): new records for southern Amazonia

Acta Amazonica ◽

10.1590/1809-4392201704291 ◽

2018 ◽

Vol 48 (2) ◽

pp. 154-157 ◽

Cited By ~ 1

Author(s):

Mônica A. PEDROSO ◽

Patrício A. da ROCHA ◽

Marcus V. BRANDÃO ◽

Guilherme S. T. GARBINO ◽

Carolina O. de MORAES ◽

...

Keyword(s):

New Records ◽

First Record ◽

Amazon Region ◽

Mato Grosso ◽

Northern Brazil ◽

Southern Amazonia ◽

Vampire Bat

ABSTRACT Bats of the subfamily Desmodontinae are the only hematophagous mammals, represented by three species. Among them, Diaemus youngii has the fewest records in Brazil, being poorly known demographically and ecologically. We report the first record of D. youngii for Mato Grosso state, in central-western Brazil, and provide additional records for the states of Rondônia and Tocantins, in northern Brazil, extending the known distribution of D. youngii in the southern Amazon region.

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