Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Physical Sciences and Mathematics (24)
- Ecology and Evolutionary Biology (22)
- Entomology (18)
- Environmental Sciences (14)
- Immunology and Infectious Disease (13)
-
- Social and Behavioral Sciences (13)
- Agriculture (12)
- Medicine and Health Sciences (12)
- Plant Sciences (12)
- Animal Sciences (11)
- Earth Sciences (10)
- Parasitology (10)
- Biology (9)
- Natural Resources and Conservation (7)
- Agricultural Economics (6)
- Natural Resources Management and Policy (6)
- Public Health (6)
- Soil Science (6)
- Zoology (6)
- Agricultural Science (5)
- Agronomy and Crop Sciences (5)
- Evolution (5)
- Forest Sciences (5)
- Genetics and Genomics (5)
- Law (5)
- Marine Biology (5)
- Microbiology (5)
- Plant Biology (5)
- Public Affairs, Public Policy and Public Administration (5)
- Institution
-
- University of Nebraska - Lincoln (26)
- University of Kentucky (9)
- Utah State University (6)
- The University of Southern Mississippi (5)
- University of Colorado Law School (5)
-
- Old Dominion University (4)
- City University of New York (CUNY) (3)
- Louisiana State University (3)
- Selected Works (3)
- University of Richmond (3)
- University of Tennessee, Knoxville (3)
- Marshall University (2)
- Montclair State University (2)
- TÜBİTAK (2)
- University of Texas at Tyler (2)
- University of Wollongong (2)
- California Polytechnic State University, San Luis Obispo (1)
- Claremont Colleges (1)
- Clark University (1)
- Department of Primary Industries and Regional Development, Western Australia (1)
- Edith Cowan University (1)
- Fordham University (1)
- Grand Valley State University (1)
- Illinois State University (1)
- Michigan Technological University (1)
- Purdue University (1)
- SelectedWorks (1)
- The University of Akron (1)
- University of Connecticut (1)
- University of Missouri, St. Louis (1)
- Publication Year
- Publication
-
- Insecta Mundi (10)
- IGC Proceedings (1997-2023) (6)
- Gulf and Caribbean Research (4)
- Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications (4)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (3)
-
- Biological Sciences Faculty Publications (3)
- Geography and the Environment Faculty Publications (3)
- LSU Doctoral Dissertations (3)
- Climate Change and the Future of the American West: Exploring the Legal and Policy Dimensions (Summer Conference, June 7-9) (2)
- Coping with Water Scarcity in River Basins Worldwide: Lessons Learned from Shared Experiences (Martz Summer Conference, June 9-10) (2)
- Department of Entomology: Faculty Publications (2)
- Euscorpius (2)
- Faculty of Science - Papers (Archive) (2)
- Health and Kinesiology Faculty Publications and Presentations (2)
- Human–Wildlife Interactions (2)
- Karl Reinhard Publications (2)
- Publications and Research (2)
- University of Nebraska State Museum: Entomology Papers (2)
- Aliso: A Journal of Systematic and Floristic Botany (1)
- Aydin Nazmi (1)
- Biology Faculty Publications (1)
- Chancellor’s Honors Program Projects (1)
- College of Agriculture and Life Sciences Faculty Publications (1)
- Community-Owned Forests: Possibilities, Experiences, and Lessons Learned (June 16-19) (1)
- Crop Updates (1)
- Department of Agronomy and Horticulture: Faculty Publications (1)
- Department of Animal Science: Faculty Publications (1)
- Department of Justice Studies Faculty Scholarship and Creative Works (1)
- Department of Political Science and Law Faculty Scholarship and Creative Works (1)
- Dissertations (1)
- Publication Type
Articles 1 - 30 of 98
Full-Text Articles in Life Sciences
Root Systems In Tropical Pasture Restoration Treatments In Rondônia, Brazil, M. C. Piccolo, K. C. Augusti, C. Neill, L. Fante Junior, M. Bernoux, C. C. Cerri
Root Systems In Tropical Pasture Restoration Treatments In Rondônia, Brazil, M. C. Piccolo, K. C. Augusti, C. Neill, L. Fante Junior, M. Bernoux, C. C. Cerri
IGC Proceedings (1997-2023)
Soil management can influence physical and chemical soil properties, with fundamental differences in root system development. Our objectives were to quantify carbon (C) and nitrogen (N) concentrations, dry mass and length of roots subjected to different restoration treatments of degraded pasture.
Recent Advances In Stylosanthes Research In Tropical America, Bela Grof, Celso D. Fernandes, Jaqueline R. Verzignassi
Recent Advances In Stylosanthes Research In Tropical America, Bela Grof, Celso D. Fernandes, Jaqueline R. Verzignassi
IGC Proceedings (1997-2023)
The potential of neotropical savannas is very large for pasture-based livestock systems. There are 250 million ha of well-drained lowland savannas in the American tropics. Over 200 million ha are situated in the Cerrados region of Brazil. The Cerrados support 42% of the national herd. Although these ranges support large populations of livestock, productivity is generally low. Poor nutritive value of native pastures and monospecific swards of Brachiaria spp. is the principal cause of this low productivity, especially in the dry season when these grasslands often provide no more than 60% of the animal's maintenance requirements. The best option to …
Hiv Epidemic Among Brazilian Women Who Have Sex With Women: An Ecological Study, Ana Luisa Lemos Bezerra, William Sorensen, Taymara Barbosa Rodrigues, Sara Melissa Lago Sousa, Marcia Simao Carneiro, Sandra Helena Isse Polaro, Aline Maria Pereira Cruz Ramos, Glenda Roberta Oliveira Naiff Ferreira, Elucir Gir, Renata Karina Reis, Elia Pinheiro Botelho
Hiv Epidemic Among Brazilian Women Who Have Sex With Women: An Ecological Study, Ana Luisa Lemos Bezerra, William Sorensen, Taymara Barbosa Rodrigues, Sara Melissa Lago Sousa, Marcia Simao Carneiro, Sandra Helena Isse Polaro, Aline Maria Pereira Cruz Ramos, Glenda Roberta Oliveira Naiff Ferreira, Elucir Gir, Renata Karina Reis, Elia Pinheiro Botelho
Health and Kinesiology Faculty Publications and Presentations
The influences of public policies fighting HIV among women who have sex with women is scarcely studied. This study aimed to analyse the time series of human immunodeficiency virus (HIV) epidemic, between 2007 and 2020, among Brazilian women who have sex with women, in order to evaluate the eect of Brazilian policies for fighting HIV in this subpopulation compared to women who have sex with men (WSM). This ecological study employed HIV and acquired immunodeficiency syndrome (AIDS) new cases among women who have sex strictly with women (WSW), women who have sex with men and women (WSMW), and WSM reported …
Spatial Scenery Of Congenital Syphilis In Brazil Between 2007 And 2018: An Ecological Study, Iaron Seabra, Glenda Roberta Oliveira Naiff Ferreira, William Sorensen, Carmem Oliveira, Andressa Tavares Parente, Elucir Gir, Renata Karina Reis, Rosangela Aparecida Pimenta Ferrari, Elia Botelho
Spatial Scenery Of Congenital Syphilis In Brazil Between 2007 And 2018: An Ecological Study, Iaron Seabra, Glenda Roberta Oliveira Naiff Ferreira, William Sorensen, Carmem Oliveira, Andressa Tavares Parente, Elucir Gir, Renata Karina Reis, Rosangela Aparecida Pimenta Ferrari, Elia Botelho
Health and Kinesiology Faculty Publications and Presentations
Objective: To analysis the epidemiological scenery of the congenital syphilis (CS) in Brazil employing spatial analysis techniques. Design: Ecological study. Settings: This study was conducted in Brazil Sample: A total of 151 601 CS cases notified to the Diseases and Notification Information System from 2007 to 2018 from children aged 0–23 months and born from mothers living in Brazil were included in this study. Primary outcome measures: The CS incidence rates were calculated by triad (2007–2010, 2011–2014 and 2015–2018) for all Brazilian municipalities following the Boxcox transformation to remove the discrepant values. The transformed rates were analysed through the spatial …
The Role Of Women In Rural Livestock: Which Women? Which Livestock?, Gabriela Litre, Daniela Nogueira, Alessandra Matte, Virginia Courdin
The Role Of Women In Rural Livestock: Which Women? Which Livestock?, Gabriela Litre, Daniela Nogueira, Alessandra Matte, Virginia Courdin
IGC Proceedings (1997-2023)
We explore the conceptual and empirical limitations of the question about “the role of women in rural livestock production” as well as the widespread assumption that women in livestock are subsistence or smallholder farmers. While this is correct in many situations, “essentialist” development discourses often disregard new demographic trends and the heterogeneity of live-stock production systems. Our research, which focuses on the livelihoods of women involved with livestock production in the Pampas’ grasslands of Brazil, proposes: 1) to critically analyse some of the most widely spread assumptions about women involved in beef livestock production, including the belief that women are …
A New Species And Significant Range Extension For The Genus Fractipes Bechynĕ (Coleoptera: Chrysomelidae: Eumolpinae: Eumolpini), Wills Flowers
A New Species And Significant Range Extension For The Genus Fractipes Bechynĕ (Coleoptera: Chrysomelidae: Eumolpinae: Eumolpini), Wills Flowers
Insecta Mundi
Fractipes tayrona new species (Coleoptera: Chrysomelidae: Eumolpinae: Eumolpini) is described from a dry forest on the Caribbean coast of Colombia. This locality is very distant from the localities in southeast Brazil, where the other two known species of Fractipes Bechynĕ were described. Male and female genitalia are described for the first time in this genus, and F. tayrona is compared with holotype photographs of F. rhabdopteroides Bechynĕ and F. secundus Bechynĕ and Springlová de Bechynĕ.
Resumen. Se describe Fractipes tayrona especie nueva (Coleoptera: Chrysomelidae: Eumolpinae: Eumolpini) de la costa Caribe de Colombia. La especie fue recolectada en un bosque seco, …
Pasture Seed Production Technology In Brazil, Ronaldo Pereira De Andrade
Pasture Seed Production Technology In Brazil, Ronaldo Pereira De Andrade
IGC Proceedings (1997-2023)
Efficient and low cost production systems, which rely on the use of cultivated pastures, are the basis of beef and milk production in Brazil. The success of these pasture-based systems would not be possible without the support of an aggressive and dynamic pasture seed production sector to supply the internal demand, which is estimated to be around 90000 tons per year. The market is dominated by grass species and among them, Brachiaria. brizantha cv. Marandu accounts for more than 80% of the total seed volume in the market. Seed production systems in Brazil vary from highly specialized to opportunistic accordingly …
How To Feed Brazil, Anna Katherine Brawner
How To Feed Brazil, Anna Katherine Brawner
Chancellor’s Honors Program Projects
No abstract provided.
Vigna Luteola And Vigna Longifolia: The Potential Of Local Ecotypes From Humid Rangelands Of Southern Brazil, Hermes Benedete, Abdon Schmitt, Fabio Martins, Alden Nacimanto
Vigna Luteola And Vigna Longifolia: The Potential Of Local Ecotypes From Humid Rangelands Of Southern Brazil, Hermes Benedete, Abdon Schmitt, Fabio Martins, Alden Nacimanto
IGC Proceedings (1997-2023)
No abstract provided.
Comparing Capabilities Of Shewanella Oneidensis Mr-1 And The Microbial Community Of Iron Caves To Reduce Fe(Iii), Aaron Douglas Pham
Comparing Capabilities Of Shewanella Oneidensis Mr-1 And The Microbial Community Of Iron Caves To Reduce Fe(Iii), Aaron Douglas Pham
Williams Honors College, Honors Research Projects
Caves are generally formed by the erosion and/or dissolution of rock and its subsequent removal by water. Iron ore caves (IOCs) form despite being hosted by relatively insoluble and weathering-resistant rock. Due to the discovery of a microbial community behind the walls of these caves, it was hypothesized that these bacteria could be responsible for speleogenesis. Iron ore exists in an oxidized (Fe(III)) state, but reduced (Fe(II)) form is soluble. It was further reasoned that the bacteria might be able to reduce Fe(III) through direct metabolic activity, which uses iron as an electron acceptor. Here we show that cave microorganisms …
Three New Species Of South American Checkered Beetles (Coleoptera: Cleridae: Clerinae), Weston Opitz
Three New Species Of South American Checkered Beetles (Coleoptera: Cleridae: Clerinae), Weston Opitz
Insecta Mundi
Three new species of Enoclerus Gahan (Coleoptera: Cleridae) are described and illustrated. They are: Enoclerus minas Opitz from Colombia and Brazil, E. salta Opitz from Argentina, and E. thomasi Opitz from Bolivia.
Corporaal (1950: 14) lists 185 species of Enoclerus Gahan (Coleoptera: Cleridae: Clerinae). I know of over 60 undescribed species. It is a daunting task to organize such a high number of species into some sort of taxonomic revision, which cannot be provided at this time. However, some of these new species can be described that will be added to a larger work at a later date. Such descriptive …
Assessing Vulture Translocation As A Management Tool To Mitigate Airport Bird Strikes, Weber Galvão Novaes, Tarcísio Lyra Dos Santos Abreu, Rafael Soave Guerta
Assessing Vulture Translocation As A Management Tool To Mitigate Airport Bird Strikes, Weber Galvão Novaes, Tarcísio Lyra Dos Santos Abreu, Rafael Soave Guerta
Human–Wildlife Interactions
Collisions between wildlife and aircraft are a major safety concern for international aviation. In the Americas, vultures (Cathartidae) are considered to be one of the most hazardous bird species to airport operations. In this study, we evaluated the use of translocations as a management technique to reduce vulture abundance near the Manaus International Airport (MAO), Manaus, Brazil. The MAO is one of the busiest and most strategically important airports in South America, often referred to as the gateway to the Brazilian Amazon. We captured, wing-tagged, and translocated 98 vultures between August and October 2013 and between January and April 2014. …
Effects Of A Regenerating Matrix On The Survival Of Birds In Tropical Forest Fragments, Jared D. Wolfe, Philip C. Stouffer, Richard O. Bierregaard Jr., David A, Luther, Thomas E. Lovejoy
Effects Of A Regenerating Matrix On The Survival Of Birds In Tropical Forest Fragments, Jared D. Wolfe, Philip C. Stouffer, Richard O. Bierregaard Jr., David A, Luther, Thomas E. Lovejoy
Michigan Tech Publications
Background
Vast areas of lowland neotropical forest have regenerated after initially being cleared for agricultural purposes. The ecological value of regenerating second growth to forest-dwelling birds may largely depend on the age of the forest, associated vegetative structure, and when it is capable of sustaining avian demographics similar to those found in pristine forest.
Methods
To determine the influence of second growth age on bird demography, we estimated the annual survival of six central Amazonian bird species residing in pristine forest, a single 100 and a single 10 ha forest fragment, taking into consideration age of the surrounding matrix (i.e. …
Genotypic Diversity Of Salmonella Ser. Gallinarum Strains Isolated From 2012 To 2016 In Brazil, Diogo Luiz Gadotti, Priscila Belleza Maciel, Raquel Rebelatto, Sabrina Castilho Duarte, Diogenes Dezen
Genotypic Diversity Of Salmonella Ser. Gallinarum Strains Isolated From 2012 To 2016 In Brazil, Diogo Luiz Gadotti, Priscila Belleza Maciel, Raquel Rebelatto, Sabrina Castilho Duarte, Diogenes Dezen
Turkish Journal of Veterinary & Animal Sciences
Salmonella Gallinarum biovar Gallinarum (SG) is a host-specific avian pathogen causing fowl typhoid (FT), a notifiable disease that causes septicemia in poultry and significant economic losses. In the state of Santa Catarina, Brazil, several cases of FT were reported from 2012 to 2016. However, strains of these outbreaks have not yet been characterized, and the genotypic characterization of isolates is essential for epidemiological surveillance and outbreak investigations. The objective of this work was to study the genetic diversity of SG isolated from the FT outbreaks, aiming to identify similarity or dissimilarity among strains isolated from the reported foci. For this …
Remote Sensing Applications For Abating Aircraft–Bird Strike Risks In Southeast Brazil, Natalia S. Novoselova, Alexey A. Novoselov, Arthur Macarrão, Guilherme Gallo-Ortiz, Wesley Rodrigues Silva
Remote Sensing Applications For Abating Aircraft–Bird Strike Risks In Southeast Brazil, Natalia S. Novoselova, Alexey A. Novoselov, Arthur Macarrão, Guilherme Gallo-Ortiz, Wesley Rodrigues Silva
Human–Wildlife Interactions
The rising number of aircraft collisions with birds requires the development of appropriate mitigation measures to control their populations in the vicinity of airports. The black vulture (Coragyps atratus; vultures) is considered one of the most dangerous species for aviation in Brazil. To better understand the spatial distribution patterns of flying vultures and the risks they may pose to aviation, we studied natural and anthropogenic superficial factors and then numerically estimated and mapped the risk of collision with birds over the Airport Safety Area (ASA) for the Amarais Airport and Presidente Prudente Airport in the southeast part of …
The Intersection Of Deforestation And Economic Growth In The Brazilian Amazon, Victoria Oceguera
The Intersection Of Deforestation And Economic Growth In The Brazilian Amazon, Victoria Oceguera
Student Theses 2015-Present
Abstract
As a result of capital gain, deforestation of the Amazon in Brazil continues. Brazilian government's insufficient efforts to mitigate and enforce the preservation of these precious forests has ledto the commodification of the Amazon. Chapter 1 uses historical and quantitative data to examine the negative impacts of deforestation on indigenous communities and climate change. Chapter2 employs economics to analyze the role of business as a crucial component of deforestation in Brazil. Chapter 3 engages politics in Brazil to discuss interactions between key actors involved in the perpetuation of deforestation. Chapter 3 examines the interactions between politics and corruption involved …
Potential Of Panicum Maximum As A Source Of Energy, Liana Jank, Edson A. De Lima, Rosangela M. Simeão, Ronimar C. Andrade
Potential Of Panicum Maximum As A Source Of Energy, Liana Jank, Edson A. De Lima, Rosangela M. Simeão, Ronimar C. Andrade
IGC Proceedings (1997-2023)
The use of plant biomass as a source of energy presents many advantages, mainly that it is a renewable, clean source of energy. Many tropical grasses have excellent po-tential as energy crops. The main one in Brazil is Pennisetum purpureum (elephant grass) owing to its very high yields. However, it is vegetatively propagated, thus more difficult to establish than seed propagated species. The use of Panicum maximum (guinea grass) is a possible alternative for use as a source of energy, due to its high yields as well as seed propagation. The objective of this research was to evaluate the potential …
Drivers Of Ant Composition, Richness, And Trophic Guilds In Neotropical Iron Ore Cavities, Rodrigo A. Castro-Souza, Thais G. Pellegrini, Marconi Souza-Silva, Rodrigo L. Ferreira
Drivers Of Ant Composition, Richness, And Trophic Guilds In Neotropical Iron Ore Cavities, Rodrigo A. Castro-Souza, Thais G. Pellegrini, Marconi Souza-Silva, Rodrigo L. Ferreira
International Journal of Speleology
Subterranean habitats may be considered limiting for animal colonization, especially for ants, due to permanent darkness and mainly because of oligotrophic conditions. While not as deep as limestone caves, iron ore caves and other subterranean habitats may be more available for colonization because of their shallower depth. We use the richness and composition of ants to assess how differences in habitat structure affect the biodiversity and ecosystem function between cavities and surrounding epigean landscapes. We predicted that the distribution of ants would be different because of the variation in habitat structure and cavity conditions may act as a filter for …
The Use Of Geospatial Modeling And Novel Diagnostics To Detect And Map Risk Factors Of Soil-Transmitted Helminths In Feira De Santana, Brazil, Ryan Harry Avery
The Use Of Geospatial Modeling And Novel Diagnostics To Detect And Map Risk Factors Of Soil-Transmitted Helminths In Feira De Santana, Brazil, Ryan Harry Avery
LSU Doctoral Dissertations
Soil-transmitted helminth (STH) infections impact billions of people worldwide. The traditional STH control approach is a morbidity control strategy implementing mass drug administration (MDA) programs targeting school-aged children (SAC). In Brazil, this control strategy has decreased STH prevalence to less than 20% in most of the country and providing an opportunity to transition from the morbidity control program and towards a surveillance and response system geared towards STH elimination. Surveillance and response systems geared towards elimination require the implementation higher accuracy diagnostics to detect infection in low-transmission communities, surveillance of entire households, high-resolution modeling at the household-habitat scale, and targeted …
Susceptibility Of Wild-Caught Lutzomyia Longipalpis (Diptera: Psychodidae) Sand Flies To Insecticide After An Extended Period Of Exposure In Western São Paulo, Brazil, Mikel A. González, Melissa J. Bell, Scott A. Bernhardt, Reginaldo P. Brazil, Erin Dilger, Orin Courtenay, James G. C. Hamilton
Susceptibility Of Wild-Caught Lutzomyia Longipalpis (Diptera: Psychodidae) Sand Flies To Insecticide After An Extended Period Of Exposure In Western São Paulo, Brazil, Mikel A. González, Melissa J. Bell, Scott A. Bernhardt, Reginaldo P. Brazil, Erin Dilger, Orin Courtenay, James G. C. Hamilton
Biology Faculty Publications
Background
In Brazil, members of the sand fly species complex Lutzomyia longipalpis transmit Leishmania infantum, a protist parasite that causes visceral leishmaniasis. Male Lu. longipalpis produce a sex pheromone that is attractive to both females and males. During a cluster randomised trial, to determine the combined effect of synthetic sex-aggregation pheromone and insecticide on Le. infantum transmission Lu. longipalpis had been continuously exposed to insecticide for 30 months. The objective of this study was to determine the effect of continuous exposure to the insecticides used in the trial on the susceptibility of Lu. longipalpis population.
Methods
During the trial …
Synopsis Of New World Sigalphinae (Hymenoptera, Braconidae) With The Description Of Two New Species And A Key To Genera, Michael J. Sharkey, Angélica Maria Penteado-Dias, M. Alex Smith, Winnie Hallwachs, Daniel Janzen
Synopsis Of New World Sigalphinae (Hymenoptera, Braconidae) With The Description Of Two New Species And A Key To Genera, Michael J. Sharkey, Angélica Maria Penteado-Dias, M. Alex Smith, Winnie Hallwachs, Daniel Janzen
Entomology Faculty Publications
We describe and illustrate Paphanus paloi sp. n., first generic record for Brazil, and Minanga patriciamadrigalae, first generic record for Costa Rica. We present illustrated keys for the New World genera of Sigalphinae, and the New World species of Paphanus and Minanga. Minanga patriciamadrigalae sp. n. was reared from caterpillars of Chloropteryx nordicariaDHJ01 (Geometridae).
Serological Proteomic Screening And Evaluation Of A Recombinant Egg Antigen For The Diagnosis Of Low-Intensity Schistosoma Mansoni Infections In Endemic Area In Brazil, Vanessa Silva-Moraes, Lisa Marie Shollenberger, William Castro-Borges, Ana Lucia Teles Rabello, Donald A. Harn, Lia Carolina Soares Medeiros, Wander De Jesus Jeremias, Liliane Maria Vidal Siqueira, Caroline Stephane Salviano Pereira, Maria Luysa Camargos Pedrosa, Nathalie Bonatti Franco Almeida, Aureo Almeida, Jose Roberto Lambertucci, Nidia Francisca De Figueiredo Carneiro, Paulo Marcos Zech Coelho, Refaella Fortini Queiroz Grenfell
Serological Proteomic Screening And Evaluation Of A Recombinant Egg Antigen For The Diagnosis Of Low-Intensity Schistosoma Mansoni Infections In Endemic Area In Brazil, Vanessa Silva-Moraes, Lisa Marie Shollenberger, William Castro-Borges, Ana Lucia Teles Rabello, Donald A. Harn, Lia Carolina Soares Medeiros, Wander De Jesus Jeremias, Liliane Maria Vidal Siqueira, Caroline Stephane Salviano Pereira, Maria Luysa Camargos Pedrosa, Nathalie Bonatti Franco Almeida, Aureo Almeida, Jose Roberto Lambertucci, Nidia Francisca De Figueiredo Carneiro, Paulo Marcos Zech Coelho, Refaella Fortini Queiroz Grenfell
Biological Sciences Faculty Publications
Background
Despite decades of use of control programs, schistosomiasis remains a global public health problem. To further reduce prevalence and intensity of infection, or to achieve the goal of elimination in low-endemic areas, there needs to be better diagnostic tools to detect low-intensity infections in low-endemic areas in Brazil. The rationale for development of new diagnostic tools is that the current standard test Kato-Katz (KK) is not sensitive enough to detect low-intensity infections in low-endemic areas. In order to develop new diagnostic tools, we employed a proteomics approach to identify biomarkers associated with schistosome-specific immune responses in hopes of developing …
Diagnosis Of Schistosoma Mansoni Infections: What Are The Choices In Brazilian Low-Endemic Areas?, Vanessa Silva-Moraes, Lisa M. Shollenberger, Liliane Maria Vidal Siqueira, William Castro-Borges, Donald A. Harn, Rafaella Fortini Queiroz E. Grenfell, Ana Lucia Teles Rabello, Paulo Marcos Zech Coelho
Diagnosis Of Schistosoma Mansoni Infections: What Are The Choices In Brazilian Low-Endemic Areas?, Vanessa Silva-Moraes, Lisa M. Shollenberger, Liliane Maria Vidal Siqueira, William Castro-Borges, Donald A. Harn, Rafaella Fortini Queiroz E. Grenfell, Ana Lucia Teles Rabello, Paulo Marcos Zech Coelho
Biological Sciences Faculty Publications
The population of Brazil is currently characterised by many individuals harbouring low-intensity Schistosoma mansoni infections. The Kato-Katz technique is the diagnostic method recommended by the World Health Organization (WHO) to assess these infections, but this method is not sensitive enough in the context of low egg excretion. In this regard, potential alternatives are being employed to overcome the limits of the Kato-Katz technique. In the present review, we evaluated the performance of parasitological and immunological approaches adopted in Brazilian areas. Currently, the diagnostic choices involve a combination of strategies, including the utilisation of antibody methods to screen individuals and then …
Multi-Locus Phylogenetic Inference Of The Howler Monkey (Alouatta) Radiation In South America., Esmeralda Ferreira
Multi-Locus Phylogenetic Inference Of The Howler Monkey (Alouatta) Radiation In South America., Esmeralda Ferreira
Dissertations and Theses
Abstract
Howler monkeys (Alouatta) are the most widely distributed New World primates, ranging from southern Mexico to northern Argentina. They occur in tropical rain forests, flooded and gallery forests, and deciduous and semi-deciduous environments. Despite their importance as seed dispersers, howlers have also been known to be ecological indicators. Available phylogenetic hypotheses for this genus have used chromosomal characters, morphological characteristics, and a limited number of molecular markers and specimens. In spite of these analyses, branching patterns among howler species lineages conflict between studies or remain unresolved. Using 14 unlinked non-coding intergenic nuclear regions under both a concatenated …
Phaeophleospora Vochysiae Savi & Glienke Sp. Nov. Isolated From Vochysia Divergens Found In The Pantanal, Brazil, Produces Bioactive Secondary Metabolites, Daiani C. Savi, Khaled A. Shaaban, Francielly M. W. Gos, Larissa V. Ponomareva, Jon S. Thorson, Chirlei Glienke, Jürgen Rohr
Phaeophleospora Vochysiae Savi & Glienke Sp. Nov. Isolated From Vochysia Divergens Found In The Pantanal, Brazil, Produces Bioactive Secondary Metabolites, Daiani C. Savi, Khaled A. Shaaban, Francielly M. W. Gos, Larissa V. Ponomareva, Jon S. Thorson, Chirlei Glienke, Jürgen Rohr
Pharmaceutical Sciences Faculty Publications
Microorganisms associated with plants are highly diverse and can produce a large number of secondary metabolites, with antimicrobial, anti-parasitic and cytotoxic activities. We are particularly interested in exploring endophytes from medicinal plants found in the Pantanal, a unique and widely unexplored wetland in Brazil. In a bio-prospecting study, strains LGMF1213 and LGMF1215 were isolated as endophytes from Vochysia divergens, and by morphological and molecular phylogenetic analyses were characterized as Phaeophleospora vochysiae sp. nov. The chemical assessment of this species reveals three major compounds with high biological activity, cercoscosporin (1), isocercosporin (2) and the new compound 3-(sec-butyl)-6-ethyl-4,5-dihydroxy-2-methoxy-6-methylcyclohex-2-enone (3). …
The Effects Of Tree Plantations And Land Use On Natural Regeneration Of Woody Plants In The Tropics: Diversity, Species Composition, Successional Dynamics, And Functional Traits, John Benjamin Longworth
The Effects Of Tree Plantations And Land Use On Natural Regeneration Of Woody Plants In The Tropics: Diversity, Species Composition, Successional Dynamics, And Functional Traits, John Benjamin Longworth
LSU Doctoral Dissertations
As anthropogenic forests become more common in the tropics, there is a greater need to understand the factors that impact forest succession. I used censuses of woody plants in successional forests to study the effects of prior land use and tree plantations on species composition and richness. First, I tested the hypothesis that communities originating from different land uses were converging in species composition over time. I compared species composition using the Chao-Jaccard similarity index. I observed shifts in the dominant species during the first 30 years of succession, but not convergence of species composition in sites with different land-use …
The Infrastructure-Extractives-Resource Governance Complex In The Pan-Amazon: Roll Backs And Contestations, Denise Bebbington, Ricardo Verdum, Cesar Gamboa, Anthony J. Bebbington
The Infrastructure-Extractives-Resource Governance Complex In The Pan-Amazon: Roll Backs And Contestations, Denise Bebbington, Ricardo Verdum, Cesar Gamboa, Anthony J. Bebbington
Geography
Large-scale access and energy infrastructure projects, together with expanding investments in natural resource extraction, pose significant challenges to biodiversity conservation, forest cover, and the defence of forest peoples' rights and livelihoods across the wider Amazon region. Following a period in which safeguards and forest dwellers' territorial rights were strengthened under more permissive political opportunity structures, the current period has been characterized by efforts to weaken these protections and to facilitate large-scale private investment in previously protected lands. We describe these investment-based threats to forests and rights, and the nature of regulatory rollbacks in the region. We then discuss some of …
Potential Distribution Of The Guava Psyllid Triozoida Limbata (Hemiptera, Psylloidea), Today And In Global Climate Change Scenarios, Dalva Queiroz, Marcos Silveira Wrege, Talita Benedcta Santos Künast, Marilice Cordeiro Garrastazu, Daniel Burckhardt
Potential Distribution Of The Guava Psyllid Triozoida Limbata (Hemiptera, Psylloidea), Today And In Global Climate Change Scenarios, Dalva Queiroz, Marcos Silveira Wrege, Talita Benedcta Santos Künast, Marilice Cordeiro Garrastazu, Daniel Burckhardt
Turkish Journal of Zoology
The jumping plant-louse Triozoida limbata is monophagous on guava (Psidium guajava), inducing leaf galls. Guava is planted today in warmer regions around the world but T. limbata is restricted to Central and South America. Recently, the latter has become a key pest in commercial plantations in Brazil (Pernambuco and São Paulo). Modeling of potential distributions is a good tool for developing control strategies of insect pests. Based on distributional data from the Americas, we created models for the psyllids for the present and future using different scenarios of climate change. The OpenModeller eco-niche modeling program was used with the Environmental …
A Fourth Account Of Centipede (Chilopoda) Predation On Bats, T. Todd Lindley, Jesús Molinari, Rowland M. Shelley, Barry N. Steger
A Fourth Account Of Centipede (Chilopoda) Predation On Bats, T. Todd Lindley, Jesús Molinari, Rowland M. Shelley, Barry N. Steger
Insecta Mundi
With an incident in Palo Duro Canyon, Texas, USA, Scolopendra heros Girard (Chilopoda: Scolopendromorpha: Scolopendridae) becomes the third centipede species known to prey on bats; S. gigantea Linnaeus and S. viridicornis Newport have been so documented in Venezuela and Brazil, respectively. The Texas predation was interrupted by the predator/prey pair’s falling around 15–20 m from the canyon wall and, perhaps also, by human presence where they landed. The centipede uncoiled and retreated to shelter under a nearby rock and, after initial immobilization, so did the bat.
Con un incidente en Palo Duro Canyon, Texas, Estados Unidos, Scolopendra heros Girard (Chilopoda: …
Agricultural Intensification Can Preserve The Brazilian Cerrado: Applying Lessons From Mato Grosso And Goia's To Brazil’S Last Agricultural Frontier, Stephanie A. Spera
Agricultural Intensification Can Preserve The Brazilian Cerrado: Applying Lessons From Mato Grosso And Goia's To Brazil’S Last Agricultural Frontier, Stephanie A. Spera
Geography and the Environment Faculty Publications
Food security and climate change are two pressing issues shaping the future of tropical land use. Brazil, home to abundant land that is rich in carbon, water, and biodiversity and often cleared for agropastoral and renewable energy purposes, is the ideal location for studying socioeconomic and environmental trade-offs of land use dynamics. Here, I use recent (2000–2016) land-use land-cover change dynamics in the established agricultural states of Mato Grosso and Goia's to demonstrate how incentivizing intensive agricultural practices and improving degraded pastures may be a means by which Brazil can increase agricultural production while conserving the remainder of the Cerrado. …