scholarly journals Diatrypella heveae Senwanna, Phookamsak & K.D. Hyde (Diatrypaceae, Xylariales): a new record for the Neotropics

Check List ◽  
2020 ◽  
Vol 16 (6) ◽  
pp. 1703-1708
Author(s):  
Maiara Araújo Lima dos Santos ◽  
Nadja Santos Vitória ◽  
Rafael José Vilela de Oliveira ◽  
José Luiz Bezerra
Keyword(s):  
Geographic Distribution ◽  
Hevea Brasiliensis ◽  
New Record ◽  
Semiarid Region ◽  
Palm Tree ◽  
New Host ◽  
Brazilian Semiarid ◽  
First Occurrence

During an expedition to the Raso da Catarina Ecological Station, state of Bahia, Brazil, we collected litter samples from Syagrus coronata (Mart.) Becc. containing fungal stroma. The material was morphologically identified as belonging to Diatrypella heveae Senwanna, Phookamsak & K.D. Hyde (Diatrypaceae, Xylariales); its known geographic distribution was then limited to Thailand. Diatrypella heveae was originally described on Hevea brasiliensis L. and Brahea armata S. Watson in the Chiang Rai Province, Wiang Chiang Rung District, Thailand. We report here the first occurrence of D. heveae in the Neotropics, as well as a new host, S. coronata, a palm tree endemic to the Brazilian semiarid region.

scholarly journals First record of Trachycephalus nigromaculatus (Amphibia, Anura, Hylidae) in the state of Piauí, Brazil

Check List ◽  
2019 ◽  
Vol 15 (3) ◽  
pp. 411-414 ◽  
Author(s):  
Renato Augusto Martins ◽  
André Moreira Assalim
Keyword(s):  
Geographic Distribution ◽  
New Record ◽  
First Record ◽  
The State ◽  
First Occurrence

We present the first occurrence of Trachycephalus nigromaculatus Tschudi, 1838 in the state of Piauí. This new record is from southern Piauí and represents the northwestern known occurrence record of this species, expanding its geographic distribution.

NOTES ON TWO COPRINOID FUNGI (BASIDIOMYCOTA, AGARICALES) FROM THE BRAZILIAN SEMIARID REGION

2018 ◽  
Vol 75 (3) ◽  
pp. 285-295 ◽  
Author(s):  
A. R. P. Gomes ◽  
F. Wartchow
Keyword(s):  
New Species ◽  
South America ◽  
New Record ◽  
Semiarid Region ◽  
Brazilian Semiarid ◽  
A New Species

Coprinellus phaeoxanthus A.R.Gomes & Wartchow is described as a new species and is characterised by cordiform basidiospores similar to those of the recently described Coprinellus arenicola. However, it differs in the presence of voluminous pleurocystidia in the velar elements, which are shorter than in Coprinellus arenicola, and in the lack of clamp connections. In addition, exsiccatae of a Brazilian collection identified as ‘Coprinus xerophilus’ are analysed, and because of the star-shaped velar patch on the pileus and the non-volvate stipe base, it is considered to be the same as Coprinus calyptratus, representing a new record from South America.

scholarly journals Phaeoseptum aquaticum (Halotthiaceae): new record for American continent in a new host for science

Rodriguésia ◽  
2019 ◽  
Vol 70 ◽  
Author(s):  
Maiara Araújo Lima dos Santos ◽  
José Luiz Bezerra ◽  
Nadja Santos Vitória
Keyword(s):  
New Record ◽  
Arid Regions ◽  
Robinia Pseudoacacia ◽  
Northeastern Brazil ◽  
Palm Tree ◽  
American Continent ◽  
New Host ◽  
Garonne River ◽  
Caatinga Biome

Abstract Phaeoseptum aquaticum (Ascomycota: Halotthiaceae) described for France, Haute Garonne, Palaminy, in a swamp, on submerged branch of Robinia pseudoacacia and at Martres Tolosane, e Moulin, banks of Garonne River, on driftwood of Salix sp., is reported as a new record for American continent in Juá village, municipality of Paulo Afonso, Bahia state, northeastern Brazil, colonizing a new host, Syagrus coronate, palm tree well suited to dry and arid regions from the Caatinga biome.

New Record, New Host, and Geographic Distribution of Basilia hughscotti Guimarães, 1946 (Diptera: Nycteribiidae)

2017 ◽  
Vol 126 (5) ◽  
pp. 394-399 ◽  
Author(s):  
Eder Barbier ◽  
Albérico Queiroz S. de Souza ◽  
Juliana Pereira Bezerra ◽  
Juliana Oliveira Ferrão dos Santos ◽  
Wallace Rodrigues Telino Júnior
Keyword(s):  
Geographic Distribution ◽  
New Record ◽  
New Host

scholarly journals Genetic Diversity and Fine-Scale Genetic Structure in Syagrus oleracea (Mart.) Becc.: A Survivor Palm Species of the Semiarid

2019 ◽  
Vol 11 (6) ◽  
pp. 373
Author(s):  
Luciana Rodrigues de Souza ◽  
Helbert Fagundes Soares ◽  
Sara Luiza Ramos Ribeiro ◽  
Afrânio Farias de Melo Junior ◽  
Murilo Malveira Brandão ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Gene Flow ◽  
Genetic Structure ◽  
Shannon Index ◽  
Semiarid Region ◽  
Palm Tree ◽  
Effective Number ◽  
Expected Heterozygosity ◽  
Brazilian Semiarid ◽  
Palm Species

The species Syagrus oleracea is a native palm tree, present in highly impacted environments of the Brazilian semiarid. This species is exploited for use in the manufacture of folk crafts and for human and animal feeding. The objective of this study was to characterize the diversity and genetic structure of individuals from different populations, located in anthropic regions of the Brazilian semiarid region, in the state of Minas Gerais. This information is important for species management and conservation strategies. Thus, we used ISSR molecular markers in 157 individuals in seven populations of S. oleracea. Looking at the results, one can observe that amplifications of 109 locos occurred and that an average of 18, 17 alleles were found on each primer, values that demonstrated that the ISSR technique used was highly efficient. The genetic diversity indexes were observed, showing expected heterozygosity (He) and Shannon index (I) of 0.260 and 0.383, respectively. The number of alleles observed (na) among populations was 1.954 and the effective number of alleles (ne) was 1,606. Individuals of the populations are genetically structured in groups (demes) in a random and aggregate manner. We obtained the amplification of 109 ISSR loci, with a mean of 18.2 alleles per primer. The genetic diversity indexes revealed expected heterozygosity (He) and Shannon index (I) of 0.260 and 0.383, respectively. The number of alleles observed (na) was 1.954 and the effective number of alleles (ne) was 1.606. The value of the indirect gene flow found was 1.546. Evidence of high levels of kinship in populations was found, possibly due to low migration rates and geographical barrier. In addition, we observed signs of overexploitation in the areas, which consequently leads to a low rate of gene flow, occurring inbreeding among the sampled populations of Syagrus oleracea.

Nitrogen Stocks in Soil Classes Under Different Land Uses in the Brazilian Semiarid Region

2021 ◽  
Author(s):  
Uemeson José dos Santos ◽  
Everardo Valadares de Sá Barretto Sampaio ◽  
Eunice Maia de Andrade ◽  
Alexandre de Siqueira Pinto ◽  
Bruno de Oliveira Dias ◽  
...  
Keyword(s):  
Semiarid Region ◽  
Land Uses ◽  
Brazilian Semiarid

Management of water supply systems from interbasin transfers: case study in the Brazilian semiarid region

2021 ◽  
pp. 1-12
Author(s):  
José Almir Cirilo ◽  
Alfredo Ribeiro Neto ◽  
Nyadja Menezes Rodrigues Ramos ◽  
Carla Fernanda Fortunato ◽  
Júlia Daniele Silva de Souza ◽  
...  
Keyword(s):  
Water Supply ◽  
Semiarid Region ◽  
Water Supply Systems ◽  
Brazilian Semiarid ◽  
Interbasin Transfers ◽  
Supply Systems

scholarly journals Spatial distribution and temporal variation of microcrustaceans assembly (Cladocera and Copepoda) in different compartments of a reservoir in the brazilian semiarid region

2018 ◽  
Vol 30 (0) ◽  
Author(s):  
Josiane Souza Santos ◽  
Nadson Ressyé Simões ◽  
Sérgio Luiz Sonoda
Keyword(s):  
Spatial Distribution ◽  
Spatial Variation ◽  
Temporal Variation ◽  
Aquatic Macrophytes ◽  
Temporal Dynamics ◽  
Lateral Compartment ◽  
Spatial And Temporal Variation ◽  
Semiarid Region ◽  
Brazilian Semiarid ◽  
Significant Spatial Variation

Abstract Aim: The objective of this study was to investigate the spatial and temporal variation of microcrustacean assemblages of a reservoir in the Brazilian semiarid region. Methods Physical and chemical water variables and samples of microcrustaceans were collected at eight sites of the reservoir between July 2013 and November 2014, in a total of seven campaigns. For this study, the reservoir was categorized in two compartments: lateral and central. Results Limnological variables showed significant temporal variation (PERMANOVA, Pseudo-F = 19.51, p = 0.001). Higher turbidity values and suspended solids were observed in the rainiest months, while during the dry months, we measured higher values of transparency, dissolved oxygen, and chlorophyll-a. It was not found significant spatial variation of limnological variables (PERMANOVA, Pseudo-F = 0.96; p = 0.394). During the study period, ten species were recorded: four Cladocera (Ceriodaphnia cornuta, Daphnia gessneri, Diaphanosoma birgei and Diaphanosoma spinulosum ) three Copepoda Calanoida (Argyrodiaptomus azevedoi, Notodiaptomus cearensis and Notodiaptomus iheringi) and three Copepoda Cyclopoida (Macrocyclops albidus, Thermocyclops minutus and Thermocyclops decipiens). The microcrustacean assemblages showed significant temporal variation (PERMANOVA, Pseudo-F = 4.34; p = 0.001) as well as significant spatial variation (PERMANOVA, Pseudo-F = 9.46; p = 0.001). The highest values of abundance and richness were observed in the lateral compartment, this result is mainly related to the presence of aquatic macrophytes in this region, because the analysis of partial RDA indicated that limnological variables explained only 11% of this variation (Pseudo-F = 2.08, p = 0.001). Conclusions The results suggest that the seasonality of the semiarid is an important factor in the temporal dynamics of the limnological variables, while the aquatic macrophytes play an important role in the spatial distribution of the microcrustacean assembly.

Drainage network extraction of Brazilian semiarid region with potential flood indication areas

2014 ◽  
Author(s):  
Sergio Rosim ◽  
João Ricardo de Freitas Oliveira ◽  
Jussara de Oliveira Ortiz ◽  
Miguel Zanic Cuellar ◽  
Alexandre Copertino Jardim
Keyword(s):  
Semiarid Region ◽  
Drainage Network ◽  
Brazilian Semiarid
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