Article
Ecology
Dolors Armenteras, Maria Constanza Meza, Tania Marisol Gonzalez, Immaculada Oliveras, Jennifer K. Balch, Javier Retana
Summary: The study investigated the vegetation responses of gallery forests in the savanna-forest transitions of the Orinoco basin in Colombia and Venezuela under different fire exposure conditions. The research found significant changes in tree height and aboveground biomass in gallery forests affected by fires.
Article
Environmental Sciences
Harm Bartholomeus, Kim Calders, Tim Whiteside, Louise Terryn, Sruthi M. Krishna Moorthy, Shaun R. Levick, Renee Bartolo, Hans Verbeeck
Summary: In vegetation monitoring, it is important to understand the changes caused by measurement setup and true representations of vegetation dynamics. This study examines the differences in derived forest metrics using three different UAV-LiDAR systems in a savanna woodland. The findings show that all three systems can accurately derive plot characteristics, but clear differences exist between metrics derived with different sensors, particularly in the lower parts of the canopy. It is crucial to be aware of these differences when comparing UAV-LiDAR data of forest areas through time.
Article
Forestry
Glaziele Campbell, Catila Henriques Callado, Warlen Silva da Costa, Jonas de Brito Compolina Marques, Saulo Pireda, Maura Da Cunha
Summary: This study investigated the dendroclimatological potential of P. peroba in Rio de Janeiro, Brazil and characterized its growth rings. The results showed that precipitation and temperature influence the growth of P. perboa, with temperature having the greatest influence on the growth ring.
Article
Environmental Sciences
Miriam R. Johnston, Ana Andreu, Joseph Verfaillie, Dennis Baldocchi, Paul R. Moorcroft
Summary: With the increasing availability of thermal infrared remote sensing (TIR-RS) data, researchers have found diverse applications for TIR-RS measurements. However, the application of TIR-RS in plant physiology and ecology is still underdeveloped. This study used a thermal camera and the ECOSTRESS mission data to investigate the temperature gradients within tree canopies and between over- and under-story plants in a Mediterranean woodland savanna. The results showed consistent patterns of vertical thermal heterogeneity, but the comparison between the thermal camera and ECOSTRESS measurements revealed some discrepancies.
REMOTE SENSING OF ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Jamie L. Wright, Barbara Bomfim, Corrine I. Wong, Ben H. Marimon-Junior, Beatriz S. Marimon, Lucas C. R. Silva
Summary: This study analyzed long-term changes in forest and savanna distribution in central Brazil using soil organic carbon isotope ratios as proxies. It found a pattern of woody vegetation expansion into savannas and denser forests and savannas over the past approximately 1,600 years. Variations in vegetation change rates were attributed to local environmental factors, with instances of tree cover decline associated with dry savannas. The results suggest a regional increase in moisture and woody vegetation expansion prior to modern deforestation, providing insights for climate change mitigation efforts.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Plant Sciences
Indira Bifano Comini, Gumercindo Souza Lima, Carlos Moreira Miquelino Eleto Torres, Fillipe Tamiozzo Pereira Torres, Livia Thais Moreira de Figueiredo, Virginia Londe de Camargos, Otavio Miranda Verly, Tiago Vital Urgal, Larissa Pires Oliveira, Samuel Jos Silva Soares da Rocha
Summary: This study investigated the density and diversity of lianas in a semideciduous seasonal forest, as well as the infestation of lianas in areas with and without forest fire occurrence. The study found that fire altered the species composition and structure of lianas, increased their density, and decreased their diversity.
SOUTH AFRICAN JOURNAL OF BOTANY
(2023)
Editorial Material
Forestry
Brian R. Sturtevant, Brice B. Hanberry
Summary: Open forests of savanna and woodlands have unique ecological characteristics, facing challenges in restoration such as restoration goals, the role of fire, and the distinction between structure and composition restoration. Considering the increasing stress on ecosystems due to human activity, restoration of open forests should be considered among the options.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Biodiversity Conservation
Rafaela Alves Pereira-Silva, Beatriz Rayrana de Araujo Gama, Joesili Cristina Pereira de Oliveira, Jone Clebson Ribeiro Mendes, Jorge Irapuan de Souza Barbosa, Sarah Maria Athie-Souza, Leidiana Lima dos Santos, Margareth Ferreira de Sales, Ana Luiza Du Bocage
Summary: A survey was conducted on angiosperm species in a fragment of Lowland Semideciduous Seasonal Forest in the Tapacura Ecological Station in Brazil. A total of 479 species belonging to 81 families and 285 genera were identified. The families Fabaceae, Rubiaceae, and Myrtaceae had the highest species richness. This study added 44 new occurrences for Pernambuco State, highlighting the importance of conservation in the regional flora.
Article
Forestry
Fabia Maria dos Santos Souza, Vinicius Barros Rodrigues, Fillipe Tamiozzo Pereira Torres
Summary: This study evaluated the changes in natural regeneration in a fragment of Atlantic Forest with and without forest fire. The results showed that forest fire increased species richness and led to low floristic similarity between burnt and unburnt areas.
Article
Mathematics, Applied
Pawel Klimasara, Marta Tyran-Kaminska
Summary: In this paper, a mathematical model of savanna vegetation dynamics is introduced, considering the impact of wet and dry seasons. The model represents a mixed woodland-grassland ecosystem with stochastic environmental noise in the form of vegetation biomass losses due to fires. The probabilities of ignition and the intensity of these losses depend on the current season. The long-term behavior of time averages for such processes is studied.
SIAM JOURNAL ON APPLIED MATHEMATICS
(2023)
Article
Plant Sciences
Belen Fadrique, Daniel Gann, Bruce W. Nelson, Sassan Saatchi, Kenneth J. Feeley
Summary: Bamboo-dominated forests cover significant areas in the Southwestern Amazon, and this study reveals that bamboo competes with coexisting trees for water, impacting large-scale ecosystem dynamics. Remote sensing analysis demonstrates the unique seasonal and long-term dynamics of BDF and coexisting trees, with bamboo influencing water competition shaping the ecosystem. The study suggests a potential selection for drought-tolerant trees in BDF and emphasizes the importance of understanding the cyclical dynamics of BDF for interpreting Amazonian forests' responses to extreme climatic events.
JOURNAL OF ECOLOGY
(2021)
Article
Multidisciplinary Sciences
Douglas Alexandre, Cintia C. Niva, Angela P. Bussinger, Robelio Marchao, Alcides Gatto, Renata G. Da Silva, Rudiger Maria Schmelz, Osmar Klauberg-Filho
Summary: This study reports for the first time the abundance and genus composition of terrestrial enchytraeids in different ecosystems in Brazil. The density of enchytraeids was higher in pasture and Cerradao, compared to Atlantic Forest and grassland. The genus composition varied among the different ecosystems.
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
(2022)
Article
Forestry
Andrew D. Arko, Jeffery B. Cannon, Austin Himes, Adam Polinko
Summary: Modern forestry research highlights the importance of incorporating natural disturbance regimes into management practices. This study examines the characteristics of canopy gaps formed by Hurricane Michael in a longleaf pine woodland, and finds variations in gap characteristics and nuanced differences in their spatial distribution among different landscape types.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Environmental Sciences
Eduardo Lopez-Senespleda, Rafael Calama, Ricardo Ruiz-Peinado
Summary: Accurate estimation of forest floor C stock is essential for understanding its contribution to ecological processes. A modelling approach was used to test different models, with the random forest method providing the best estimates. The results were presented in a map showing the spatial distribution of the forest floor C stock.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agricultural Engineering
Qi Zhou, Jinfeng Wang, Qing Wu, Zhuomei Chen, Guofu Wang
Summary: The study investigated the seasonal dynamics of volatile organic compounds released from Cinnamomun camphora forests and the therapeutic effect of forest bathing on elderly patients with hypertension. Different components and relative contents of VOCs were found in different seasons, with alkanes and organic acids higher in spring and winter, and terpenes more prevalent in autumn and summer. Forest bathing in Cinnamomun camphora forests in autumn, summer, and spring had a positive auxiliary regulatory effect on blood pressure and inflammation in elderly patients with hypertension, potentially due to terpenes and negative oxygen ions. However, forest bathing in winter was not beneficial for the therapy of elderly patients with hypertension.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Chemistry, Applied
Camila de Souza Araujo, Daniel Amando Nery, Ana Paula de Oliveira, Raimundo Goncalves De Oliveira-Junior, Larissa Araujo Rolim, Norberto Peporine Lopes, Maria Francilene de Souza Silva, Claudia do O. Pessoa, Raimundo Braz-Filho, Livia Macedo Dutra, Josean Fechine Tavares, Lucas Silva Abreu, Marcelo Sobral da Silva, Jackson Roberto Guedes da Silva Almeida
Summary: A new nor-ent-kaurene diterpene and ten other compounds were isolated from the stems of Annona vepretorum. Their chemical structures were elucidated using spectroscopic methods. The cytotoxic activity of some compounds was evaluated and found to be low.
NATURAL PRODUCT RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Ana Edileia Barbosa Pereira Leal, Erica Martins de Lavor, Ana Paula de Oliveira, Livia Macedo Dutra, Jackson de Menezes Barbosa, Cristiane dos Santos Cerqueira Alves, Roxana Braga de Andrade Teles, Raira Feitosa dos Santos, Ricardo Santana de Lima, Mario Adriano Avila Queiroz, Julianeli Tolentino de Lima, Jackson Roberto Guedes da Silva Almeida
Summary: This study evaluated the safety profile and hypolipidemic potential of the fruit peel of Passiflora cincinnata Mast. and found that the extract and flour significantly decreased lipid levels in hyperlipidemic mice.
DRUG AND CHEMICAL TOXICOLOGY
(2023)
Article
Plant Sciences
Joao Paulo Costa, Olavo Custodio Dias Neto, Lilian Cristina da Silva Santos, Amanda Wolberg Rodrigues, Jovan Martins Rios, Jamir Afonso do Prado Junior, Vagner Santiago do Vale
Summary: Functional traits are morpho-physiological characteristics of species that can significantly influence ecological processes. In this study, the functional traits of tree species in the cerrado region were evaluated and four distinct functional groups were identified.
Article
Biochemistry & Molecular Biology
Siddhartha Banerjee, Divya Baghel, Ana Pacheco de Oliveira, Ayanjeet Ghosh
Summary: This study used nanoscale AFM-IR spectroscopy to investigate the structure of Aβ oligomers and fibrils. It found that the main effect of beta-carotene is not to inhibit fibril formation, but to alter the secondary structure of the fibrils and promote fibrils that lack the characteristic ordered beta structure.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Ecology
Bruno Ferreira Bartelli, Jamir Prado-Junior, Monize Altomare, P. Mendes, Paulo Eugenio Oliveira, Fernanda Helena Nogueira-Ferreira
Summary: Through studying the relationship between tomato crop management and landscape structure and community metrics of flower-visiting bees, it was found that mixed-species system and conservation of natural habitats are crucial for maintaining the diversity of wild bees and providing pollination services to both crops and native vegetation.
Article
Food Science & Technology
Felipe Murta, Eleanor Strand, Altair Seabra de Farias, Felipe Rocha, Alicia Cacau Santos, Evellyn Antonieta Tome Rondon, Ana Paula Silva de Oliveira, Hiran Satiro Souza da Gama, Yasmim Vieira Rocha, Gisele dos Santos Rocha, Mena Ferreira, Vinicius Azevedo Machado, Marcus Lacerda, Manuela Pucca, Felipe Cerni, Joao Ricardo Nickenig Vissoci, Anna Tupetz, Charles J. Gerardo, Ana Maria Moura-da-Silva, Fan Hui Wen, Jacqueline Sachett, Wuelton Monteiro
Summary: Research has found that snakebite envenomations are a significant problem for indigenous populations in the Brazilian Amazon. However, little research has been conducted on how indigenous peoples access and utilize the health system for snakebite treatment. The study suggests that decentralizing antivenom to local health units and providing additional resources can improve patient care, while further research is needed on preparing healthcare professionals to work in intercultural contexts.
Review
Agriculture, Dairy & Animal Science
Marcus Antonio Rossi Feliciano, Brenda dos Santos Pompeu de Miranda, Luiz Paulo Nogueira Aires, Bruna Bressianini Lima, Ana Paula Luiz de Oliveira, Giovanna Serpa Maciel Feliciano, Ricardo Andres Ramirez Uscategui
Summary: This study reviews current information regarding different ultrasound techniques in the evaluation of mammary tumors, highlighting that elastography is the most reliable technique to distinguish benign and malignant tumors. Furthermore, other sonographic techniques provide important information for clinical staging and therapeutic approach, and further studies are needed to evaluate their potential.
Article
Geosciences, Multidisciplinary
Yan Vidal de Figueiredo Gomes Diniz, Ana Paula Pessim de Oliveira, Tiago Paula da Silva, Eduardo Carvalho da Silva Neto, Andres Calderin Garcia, Marcos Gervasio Pereira, Marcelo Souza Motta, Hugo de Souza Fagundes, Otavio Augusto Queiroz dos Santos, Lucia Helena Cunha dos Anjos
Summary: This study aimed to quantify and characterize the impact of prescribed fire (PF) on soil organic matter in Itatiaia National Park. The results showed that within 10 days after the fire, the release of labile organic carbon resulted in an increase in humic fractions in the soil. However, it took more than 240 days for the soil to restore the levels of carbon and nitrogen stocks.
Correction
Ecology
Bruno Ferreira Bartelli, Jamir Prado, Monize Altomare, Poliana Mendes, Paulo Eugenio Oliveira, Fernanda Helena Nogueira-Ferreira
Article
Multidisciplinary Sciences
Kamila Marques Pedrosa, Maiara Bezerra Ramos, Maria de los Angeles La Torre-Cuadros, Sergio de Faria Lopes
Summary: Local populations select different plants to meet their demands, and morphologically similar species are more commonly used. This study investigates whether phylogenetically closer plant species are used more similarly and finds that they are. The lower redundancy for some species suggests greater use pressure.
Article
Education & Educational Research
Amanda Rodrigues de Souza, Ana Paula Santos de Oliveira, Rosemeire de Araujo Rangni
Summary: Livestreams became highly popular during the pandemic period, particularly in discussing topics related to giftedness, which attracted significant academic interest. This article presents a systematic review on livestreams about giftedness on YouTube during the pandemic period (2020-2022). The findings included 22 videos covering introductory themes on giftedness as well as other topics such as parenting, acceleration, mathematics, giftedness and autism, and over-excitability. Overall, even though introductory themes were more common, livestreams played a crucial role in providing information to teachers and professionals, even those already familiar with the subject.
EDUCACAO & FORMACAO
(2023)
Article
Chemistry, Multidisciplinary
Juliane M. S. Silva, Flavia C. R. Vilar, Gabriel A. B. Lima, Elizangela M. Souza, Livia M. Dutra, Jackson R. G. S. Almeida, Larissa A. Rolim, Norberto P. Lopes, Ana P. Oliveira
Summary: The present study aimed to assess the toxic, antioxidant, and antibacterial properties of P. amboinicus essential oil. The results showed that the essential oil has weak antioxidant activity, is highly toxic against Artemia salina, and exhibits strong antibacterial activity, especially against Aeromonas hydrophila strains.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2023)
Article
Entomology
Renato Portela Salomao, Cesar Murilo de Albuquerque Correa, Sergio Santorelli Junior, Albertina Pimentel Lima, Wiliam Ernest Magnusson, Eliene Fontes Arruda, Ana Paula Vieira de Oliveira, Ricardo Cesar Correa Cabral
Summary: The recognition and use of food resources in animal species may vary according to availability. Dung beetle species feed from a wide range of food resources, including feces, carrion, and rotten fruit. The study aimed to assess the attractiveness and preference of different food types for dung beetles in Campinarana. The results showed that the diet of dung beetles dwelling in Campinaranas is relatively strict, with species being attracted mostly to carrion or feces, regardless of the availability of other food types.
INTERNATIONAL JOURNAL OF TROPICAL INSECT SCIENCE
(2023)
Article
Humanities, Multidisciplinary
Amanda Melo Araujo, Marcos Aurelio Cavalcante Ayres, Ana Paula Monteiro de Oliveira, Francisco Carlos Vaz Sales
Summary: The importance of financial statements for investment decisions is highlighted in this study, with most entrepreneurs in Sao Miguel do Tocantins using accounting as an instrument for monitoring and analyzing their company's performance.
HUMANIDADES & INOVACAO
(2022)
Article
Public, Environmental & Occupational Health
Tomie T. De Campos, Lena Katekawa, Rosemary S. A. Shinkai, Ricardo J. Furuyama, Reinaldo Missaka, Daniela Mita, Ana Paula L. De Oliveira
Summary: Self-medication is common among TMD patients attending specialized clinics, and this inappropriate practice is more likely to occur in women and in patients with severe signs and symptoms of TMD. Most patients reported some improvement after using medications, but there were also side effects reported by a small percentage of patients.
IRANIAN JOURNAL OF PUBLIC HEALTH
(2022)