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Composi??o, estrutura e a ecologia hist?rica de um trecho de Floresta Estaciona...
Freitas, Welington Kiffer deSubmitted by Sandra Pereira (srpereira@ufrrj.br) on 2020-04-20T17:52:00Z No. of bitstreams: 1 2012 - Welington Kiffer de Freitas.pdf: 9543466 bytes, checksum: 15762ada621aec1179d0fd7f7413384b (MD5); Made available in DSpace on 2020-04-20T17:52:01Z (GMT). No. of bitstreams: 1 2012 - Welington Kiffer de Freitas.pdf: 9543466 bytes, checksum: 15762ada621aec1179d0fd7f7413384b (MD5) Previous issue date: 2012-02-02; T...
Spatial-temporal of fire foci in the state of Rio de Janeiro, Brazil
Gois, Givanildo de; Freitas, Welington Kiffer de; Oliveira Júnior, José Francisco deThis study evaluated the space-time variability of fire foci via environmental satellites for the State of Rio de Janeiro (SRJ) based on statistical procedures. The fire foci in the period of 2000 to 2015 were obtained from the BDQueimadas fire database. Descriptive, exploratory, and multivariate statistical analyses were performed in the software environment R i386 version 3.2.5. The north region had 6760 foci...
Poincianella pluviosa as biomonitor of heavy metals in the municipality of Volt...
Souza, Marcelle S.P.A. de; dos Santos, Fabiana Soares; Magalhães, Luís Mauro Sampaio; Freitas, Welington Kiffer de; Gois, Givanildo deThe present study aimed to determine heavy metal concentrations in the tree bark of the species Poincianella pluviosa in Volta Redonda municipality, Rio de Janeiro. Four sets of barks of eight trees with three replicates each from sectors 1 (W), 2 (S), 3 (E), and 4 (N) of the Volta Redonda center corresponding to the cardinal points were collected. The samples were digested in a nitroperchloric mixture and the ...
Structure and similarity of urban forests in the Metropolitan area of Rio de Ja...
Aquino Santana, Cláudio Alexandre de; Freitas, Welington Kiffer de; Magalhães, Luís Mauro SampaioTropical forests have different trends of succession, combining natural and anthropogenic factors. In order to identify patterns, data from studies in the Metropolitan Region of Rio de Janeiro, Brasil, between 1993 and 2006 in eight secondary forest remnants were compiled. The method of fixed area plots was used, with tree inclusion criteria of circumference at breast height >15cm. The results show high structu...
Invasion impact of Artocarpus heterophyllus LAM. (Moraceae) at the edge of an A...
Freitas, Welington Kiffer de; Magalhães, Luís Mauro Sampaio; Resende, Alexander Silva de; Brasil, Felipe da Costa; Vivès, Lise da RochaThe Atlantic Forest is reduced to less than 20 % of its original area, but it still protects an important biological heritage. Forest fragmentation makes the environment more susceptible to invasive species occupation. Jackfruit (Artocarpus heterophyllus) was introduced into Brazil in the seventeenth century; and in the second half of the twentieth century, its natural regeneration increased the density of indi...
A EVOLUÇÃO DA PAISAGEM APLICADA NA INTERPRETAÇÃO DE TRILHAS, NO PARQUE NACIONAL...
Freitas, Welington Kiffer de; Magalhães, Luis Mauro Sampaio; Pereira Junior, Edson Rodrigues; Pinheiro, Marco Aurélio SoaresA interpretação da natureza, contida nos programas de Uso Público e EducaçãoAmbiental em Unidades de Conservação, visa traduzir a linguagem técnicadas ciências naturais para uma linguagem inteligível ao público em geral,realizando-a de forma lúdica e criativa, sendo parte integrante dos programasde Uso Público e Educação Ambiental em Unidades de Conservação. Ela devetrazer para o usuário uma nova visão sobre o ...
Potential for public use in Tijuca National Park
Freitas, Welington Kiffer de; Magalhães, Luis Mauro Sampaio; Guapyassú, Maísa dos SantosThe objective of this study was to characterize the visitor’s profile of Tijuca National Park, Rio de Janeiro state. The interviews were conducted during one year, on Saturdays, Sundays and on one working day. In this period 400 people were interviewed in four different spots of the park: Cascatinha, Meu Recanto, Paineiras and Corcovado. Cascatinha and Meu Recanto visitors reside mainly in the North zone; they ...