Natural Regeneration in Tropical Rainforest, Northeastern Brazil

2019 ◽  
pp. 1-11
Author(s):  
Fabiana Estigarribia ◽  
Joselane Príscila Gomes da Silva ◽  
Paulo Fernando Rodrigues Cândido ◽  
Nelio Domingos Da Silva ◽  
João Antonio Tanajura Silva ◽  
...  
Keyword(s):  
Natural Regeneration ◽  
Rain Forest ◽  
Tropical Rainforest ◽  
Recovery Process ◽  
Northeastern Brazil ◽  
Systematic Sampling ◽  
Class Iii ◽  
Minimum Height ◽  
Inclusion Level ◽  
The City

Aims: To evaluate the shrub-tree species of natural regeneration in a remnant of Tropical Rain Forest, located in the northeastern region of Brazil. Study Design:  Systematic sampling. Place and Duration of Study: The study was carried out in a remnant of Tropical Rainforest, categorized as a Forest of Miritiba Wildlife Refuge, located in the municipality of Abreu and Lima, distant approximately 42 km from the city of Recife, state of Pernambuco, Brazil. The area has approximately 273.40 ha. The data were collected in November 2016. Methodology: The data were collected in 12 plots (25 m² each) allocated in 3 transects of 100 m in length, equidistant 50 m from each other, perpendicular to the edge of the weir located inside the fragment. The inclusion level established was a minimum height of 1.0 m and a base circumference at 30.0 cm from the ground (CAB 0.30 m) ≤ 15.0 cm. Three height classes (H) were considered, where Class I included individuals with 1.0 ≤ H ≤ 2.0 m; Class II with 2.0 <H <3.0 m and Class III with H> 3.0 m and CAP <15.0 cm. Results: A total of 41 species belonging to 24 botanical families and 31 genus were recorded, representing a density of 8,867 ind.ha-1. The five richest families were Fabaceae, Myrtaceae, Melastomataceae Anacardiaceae and Sapindaceae. The species with the highest estimated densities were Protium heptaphyllum, Erythroxylum mucronatum and Hirtella racemosa. Conclusion: Among the species sampled in the regenerating component, which presented higher density and can be used for enrichment of areas in recovery process are Protium heptaphyllum, Erythroxylum mucronatum, Hirtella racemosa, Myrcia tomentosa and Eschweilera ovata.

scholarly journals Natural Regeneration Under Influence of Sustainable Management Plan in Caatinga

2019 ◽  
Vol 11 (10) ◽  
pp. 194
Author(s):  
Mailson Pereira de Souza ◽  
Allyson Rocha Alves ◽  
Ivonete Alves Bakke ◽  
Josueldo Alves Lopes ◽  
Wellington de Sousa Santos ◽  
...  
Keyword(s):  
Forest Management ◽  
Natural Regeneration ◽  
Sustainable Management ◽  
Floristic Composition ◽  
Management Plan ◽  
Productive System ◽  
Minimum Height ◽  
System Sustainability ◽  
Number Of Individuals ◽  
The City

Despite being one of the most heterogeneous Brazilian biomes, regardless of being the least known, the Caatinga is under strong anthropism. In this way the forest management offers techniques that, when used, guarantees the maintenance of the sustainability of the productive system, sustainability that is guaranteed through the resilience of the regenerative stratum. Thus the objective of this work was to evaluate the effect of forest management on natural regeneration in a caatinga area, under different cutting ages. The study was developed in the settlement of the agrarian reform, Brand&atilde;o III, located in the city of Cuit&eacute;-PB. To evaluate the natural regeneration, 40 plots measuring 5 &times; 5 m (25 m2) were randomly allocated within the plots exploited and in the Legal Reserve. All individuals with Circumference at baseline (CNB) &le; 6 cm and with a minimum height of 0.5m were measured, and distributed in three height classes. A C1: 0.5 m &lt; H &lt; 0.99 m; C2: 1.0 m &le; H &lt; 1.99 m and C3: H &gt; 2.0 m. The data of density, richness and number of individuals by type of regeneration origin were compared by the Tukey test at 5% significance. We sampled 2021 individuals, represented by 32 species, 27 genera distributed in 16 families. The exploration did not cause significant changes to the floristic composition nor to the richness of the species. The exploration and the time elapsed between the cut and the measurement influenced the increase of the density.

scholarly journals Epidemiological aspects of influenza A related to climatic conditions during and after a pandemic period in the city of Salvador, northeastern Brazil

2014 ◽  
Vol 109 (2) ◽  
pp. 229-235 ◽  
Author(s):  
Rosangela de Castro Silva ◽  
Marilda Agudo Mendonça Siqueira ◽  
Eduardo Martins Netto ◽  
Jacione Silva Bastos ◽  
Cristiana Maria Nascimento-Carvalho ◽  
...  
Keyword(s):  
Influenza A ◽  
Climatic Conditions ◽  
Northeastern Brazil ◽  
The City

scholarly journals Cetaceans registered on the coast of Ilhéus (Bahia), northeastern Brazil

2012 ◽  
Vol 12 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Renata Lúcia Guedes Batista ◽  
Alexandre Schiavetti ◽  
Urânia Amaral dos Santos ◽  
Maria do Socorro Santos dos Reis
Keyword(s):  
Municipal Government ◽  
Northeastern Brazil ◽  
Orcinus Orca ◽  
Physeter Macrocephalus ◽  
Downtown Area ◽  
Sotalia Guianensis ◽  
Fire Stations ◽  
Scientific Value ◽  
The City ◽  
Environmental Agency

Stranded cetaceans have scientific value and may confirm the occurrence of some species or indicate their geographical distribution in an area. The collection of biological material can also contribute to improve the knowledge of the species or populations inhabiting certain areas. This study aimed to record live or dead cetaceans found ashore along the coast of Ilhéus, Bahia State, northeastern Brazil. Data were collected through a campaign called "SOS strandings, whales, porpoises and dolphins." Between 1997 and 1999 three hundred posters and five hundred folders were distributed to beach huts, shops, fishing associations and settlements, the city's municipal government, the Brazilian Environmental Agency (IBAMA) and fire stations. During this campaign, which lasted until 2007 it was possible to record 38 cetaceans of ten species on the coast of Ilhéus: Physeter macrocephalus, Megaptera novaeangliae, Globicephala macrorhynchus, Orcinus orca, Peponocephala electra, Stenella clymene, Feresa attenuata, Ziphius cavirostris, Steno bredanensis and Sotalia guianensis. The greatest numbers of records were observed between 2000 and 2003, which was the period after the distribution of banners and posters. The majority of the carcasses were recovered near the city downtown area (<10 km) and there was not a relationship between the state of the carcasses and the distance from that area.

scholarly journals A new species of the genus Chiromyza Wiedemann (Diptera, Stratiomyidae) from Rio de Janeiro, Brazil

2020 ◽  
Vol 60 ◽  
pp. e20206037
Author(s):  
José Roberto Pujol-Luz
Keyword(s):  
New Species ◽  
Related Species ◽  
Rain Forest ◽  
Rio De Janeiro ◽  
Distal Region ◽  
Outer Margin ◽  
Atlantic Rain Forest ◽  
Distal Surface ◽  
The City ◽  
A New Species

Seven species of the genus Chiromyza Wiedemann are recorded in Brazil: C. brevicornis (Lindner, 1949), C. enderleini (Lindner, 1949), C. leptiformis (Macquart, 1838), C. ochracea Wiedemann, 1820, C. stylicornis (Enderlein, 1921), C. viridis Bezzi, 1922 and C. vittata Wiedemann, 1820. Herein I describe a new species, Chiromyza raccai sp. nov., based on 88 specimens (41 males, 47 females) from the Atlantic Rain Forest mountains of State of Rio de Janeiro, Brazil, in the city of Miguel Pereira. The new species is distinguished from the related species C. ochracea and C. vittata by the structure of male terminalia. Chiromyza raccai sp. nov. has the distal region of the phallus rounded with two conspicuous apical setae, C. ochracea has the distal surface of the phallus wide and flatness, and C. vittata has the distal surface of the phallus rounded with outer margin rugose.

scholarly journals Niède Guidon: a cientista brasileira responsável pelo tesouro arqueológico nacional

2018 ◽  
Vol 18 ◽  
pp. 76
Author(s):  
Jéssica Da Silva Gaudêncio
Keyword(s):  
Scientific Journal ◽  
Sao Paulo ◽  
Northeastern Brazil ◽  
Archaeological Sites ◽  
São Paulo ◽  
Archaeological Remains ◽  
Land Bridge ◽  
Unesco World Heritage ◽  
Carbon 14 ◽  
The City

ResumoO presente artigo aborda a trajetória científica da arqueóloga Niède Guidon, brasileira nascida no interior de São Paulo e Doutora em Pré-História pela Université Paris I Pantheon-Sorbonne. Chegou na cidade de São Raimundo Nonato (Piauí) em 1970 em busca de vestígios arqueológicos provenientes daquela região. Ao deparar-se com resultados de análises enviadas à laboratórios franceses, no qual datavam através da técnica com Carbono-14 artefatos e vestígios arqueológicos com mais de 18 mil anos BP[1], Niède ampliou suas pesquisas e reuniu esforços pela preservação do local que hoje é conhecido como Parque Nacional da Serra da Capivara, patrimônio cultural da humanidade pela Unesco. Em 1986, publicou suas descobertas na prestigiada revista científica britânica Nature, dando destaque internacional para os sítios arqueológicos do nordeste brasileiro. A partir daí Guidon continuou seu trabalho e suas descobertas arqueológicas constataram artefatos com datações de 100 mil anos BP, desenvolvendo novas teorias para a origem do homem americano, refutando assim a teoria mais aceita do Estreito de Bering. Isto causou a indignação de diversos arqueólogos internacionais e nacionais que questionavam a veracidade de suas pesquisas. Mesmo com todas essas polêmicas, Niède Guidon e demais pesquisadores seguem com seus estudos nos mais de 1300 sítios arqueológicos da região do Piauí, sugerindo que mais resultados ainda estão por vir.Palavras-chave: Niède Guidon; Arqueologia; Pré-história brasileira.AbstractThis article deals with the scientific accomplishments of the archaeologist Niède Guidon, a Brazilian born in the interior of São Paulo who earned a Ph.D. in Prehistory from the Université Paris I Pantheon-Sorbonne. He arrived in the city of São Raimundo Nonato (Piauí) in 1970 in search of archaeological remains from that region. When he first received the results from French laboratories of Carbon-14 analyses, a method capable of dating artifacts that are at least eighteen thousand years old, Niède expanded his research and joined efforts to preserve the location now known such as Serra da Capivara National Park, a UNESCO World Heritage Center. In 1986, he published his findings in the prestigious British scientific journal Nature, gaining international prominence for the archeological sites of northeastern Brazil. From there Guidon continued his work and his archaeological discoveries, finding artifacts dating to 100,000 years before the present (BP), developed new theories for the origin of American humankind, thus refuting the more accepted theory of the humankind’s migration across the land bridge between Asia and North America. This caused indignation among several international and national archaeologists who questioned the veracity of his research. Even with controversies, Niède Guidon and other researchers have continued their studies in more than 1300 archaeological sites in the Piauí region, which suggests that more findings can be expected.Keywords: Niède Guidon; Archeology, Brazilian Prehistory.[1] Before the Present – Antes do Presente – escala utilizada pelas disciplinas científicas na datação de eventos do passado em relação à data presente.

scholarly journals Out-patient drug treatment of pneumonia among children under two years of age in Fortaleza, Brazil

1997 ◽  
Vol 13 (1) ◽  
pp. 37-43
Author(s):  
Chizuru Misago ◽  
Tom F. Marshall ◽  
Walter Fonseca ◽  
Betty R. Kirkwood
Keyword(s):  
Antimicrobial Agent ◽  
Antimicrobial Treatment ◽  
Northeastern Brazil ◽  
Benzathine Penicillin ◽  
Pediatric Hospital ◽  
Prescription Patterns ◽  
Procaine Penicillin ◽  
The City ◽  
Repeat Visits ◽  
Repeat Prescriptions

Results are reported from a study on drug use in treatment of children with pneumonia in a pediatric hospital in the city of Fortaleza, Northeastern Brazil. There were 171 out-patients; prescription details were obtained for 149. The most commonly prescribed antimicrobial drug was procaine penicillin, accounting for 33% of antimicrobial prescriptions, followed by benzathine penicillin (31%), ampicillin or amoxicillin (12%), and cotrimoxazole (8%). Benzathine penicillin was frequently given with other drugs, but was the sole antimicrobial agent for 31 children. Compliance with antimicrobial treatment was 52% overall and was higher for the injectables. Prescription patterns varied from child to child, and children were often prescribed more than one antimicrobial in the same or repeat prescriptions; combining this information with compliance, 81 (54%) of the children were estimated to have received 5 or more days of appropriate antimicrobial treatment for pneumonia. This percentage is not high, and five days were often reached after using more than one antimicrobial and after repeat visits. The authors concluded that the need remains for simple antimicrobial regimes, attractive to comply with, that can be expected to be consistently used. Other drugs were chiefly analgesics and bronchodilators.

A new species of Liotyphlops (Serpentes: Anomalepididae) from the Atlantic Rain Forest of Northeastern Brazil

Zootaxa ◽  
2007 ◽  
Vol 1393 (1) ◽  
pp. 19-26 ◽  
Author(s):  
ELIZA MARIA XAVIER FREIRE ◽  
ULISSES CARAMASCHI ◽  
ANTÔNIO JORGE SUZART ARGÔLO
Keyword(s):  
New Species ◽  
Rain Forest ◽  
Northeastern Brazil ◽  
Atlantic Rain Forest ◽  
Posterior Edge ◽  
Vertical Row ◽  
A New Species ◽  
Lateral Head

A new species of the genus Liotyphlops, known from three localities in the states of Alagoas and Bahia, in the Atlantic Rain Forest of Northeastern Brazil, is described. Liotyphlops trefauti sp. nov. is distinguished from all other species of the genus by the following combination of characters: four scales contacting the posterior edge of prefrontal; one scale contacting the posterior edge of nasal, between the second supralabial and the frontal; five scales in the first vertical row of lateral head scales; 22-22-22 scales around body; 520–543 dorsal scales; 499–532 ventral scales; absence of eye spot; and dorsal and ventral color bright yellowish-brown to reddish-brown.

scholarly journals Natural Regeneration of the Mangrove Vegetation on Abandoned Salt Ponds in Ceará, in the Semi-Arid Region of Northeastern Brazil

Diversity ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 27 ◽  
Author(s):  
Armando Reis-Neto ◽  
Antonio Meireles ◽  
Marília Cunha-Lignon
Keyword(s):  
Natural Regeneration ◽  
Arid Region ◽  
Ecosystem Dynamics ◽  
Shrimp Farming ◽  
Northeastern Brazil ◽  
Integrated Analysis ◽  
Technical Problems ◽  
Mangrove Vegetation ◽  
Semi Arid Region ◽  
Semi Arid

The development of the mangrove in Ceará state, northeastern Brazil, is limited by local environmental and climatic factors, associated with the variables that determine the region’s semi-arid climatic conditions. The same conditions also contribute to the installation of artisanal saltworks in estuarine environments. The artisanal production of salt peaked in the 20th century, but with the decline of this activity, the salt evaporation ponds were abandoned, and have been incorporated back into the natural marine-estuarine environment and colonized by mangrove forests. In the early 2000s, however, the expansion of shrimp farming operations impacted this same environment. The present study was based on a spatiotemporal analysis of the natural regeneration of the mangrove vegetation in abandoned salt pond areas in the Brazilian semi-arid region between 1968 and 2009. The integrated analysis of mangrove ecosystem dynamics and the legislation that regulates the licensing of these economic activities identified a number of technical problems in the formulation and execution of the COEMA resolution 02/2002, which permits the installation of shrimp farms in areas dominated by the mangrove. The findings of the present study reinforce the need for a careful reformulation of the Ceará state environmental legislation, in order to guarantee the maximum possible conservation of the coastal zone.

Analysis of the Incorporation of Scheelite Residue in Kaolinitic Clay of Boa Saúde-RN

2012 ◽  
Vol 727-728 ◽  
pp. 844-849 ◽  
Author(s):  
Tércio G. Machado ◽  
Uilame Umbelino Gomes ◽  
Flanelson M. Monteiro ◽  
Samara M. Valcacer ◽  
Gilson G. da Silva
Keyword(s):  
Raw Materials ◽  
Particle Size Analysis ◽  
Northeastern Brazil ◽  
Size Analysis ◽  
Bending Tests ◽  
Materials Used ◽  
Kaolinitic Clay ◽  
The City ◽  
Mineral Waste

The scheelite occurs mainly in northeastern Brazil, with highest abundance in the states of Rio Grande do Norte and Paraíba - Scheelite Seridó Province. Mining is considered an activity that provides a high environmental degradation due to the large amount of minerals and waste involved. Most mining companies have no technologies or processes that allow the recycling of mineral waste generated. The aim of this study is to evaluate the influence of different percentages of reject on the mechanical properties of scheelite and aesthetic (staining of the final product after firing) of the clay of the city of Boa Saúde - RN. The raw materials used were characterized by XRD, XRF and particle size analysis. Assay was performed by water absorption, linear retraction and bending tests on three points for the characterization of the final product. The raw materials used were from the city of Currais Novos-RN.

Environment and Energy: A Public Opinion Survey in Davao City

2014 ◽  
Vol 10 (1) ◽  
Author(s):  
MAIAN J. COZO
Keyword(s):  
Global Warming ◽  
Renewable Energy ◽  
Public Opinion ◽  
Environmental Protection ◽  
Environmental Issues ◽  
Systematic Sampling ◽  
Policy Makers ◽  
The Public ◽  
The Government ◽  
The City

For the past decades, environment and its relevant issues are becoming the greatest concern of most countries. Public opinion becomes the interest of most policy makers and sociologist reformist. Improved understanding of public perceptions about global warming and other environmental issues can contribute to informing scientific and policy discussions. The aim of this study is to assess the (1) the extent of concern on the major environmental issues of the city (2) the preference between environmental protection and energy production, and (3) to compare the extent of concern of the public according to their respective district.  A total of 1151 respondents, ages 18 and above was derived using the systematic sampling at 95% confidence interval, and proportionate sampling distribution to ensure representativeness with the population of the city. The results suggest that Dabawenyos are greatly worried about global warming (92%), deforestation and urban flooding (88%), and energy crisis are considered as the most alarming environmental problem in the city. Moreover, they are more favorable to environmentally-friendly solutions in addressing the city’s energy problem, and the government should put greater emphasis on the development of renewable energy (96%). The degree of concerns and emphasis on environmental protection of the community can be directly equated to the traumatic environmental phenomena that had happened in the city.   Keywords: Ecology and Conservation, environmental issues, renewable energy, poll survey, Philippines

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