Donald P. Eaton

The Amazon forest has the highest biodiversity on Earth. However, information on Amazonian vertebrate diversity is still deficient and scattered across the published, peer‐reviewed, and gray literature and in unpublished raw data. Camera traps are an effective non‐invasive method of surveying vertebrates, applicable to different scales of time and...

Because global climate change results in increasingly extreme temperatures and more frequent droughts, behavioral thermoregulation is one avenue by which species may adjust. Changes in activity patterns in response to temperature have been observed in a number of mammal species, but rarely have been investigated in humid tropical habitats. Here we...

This edition of the magazine presents one of the first assessments of fire impacts and the long-term consequences that will affect the Pantanal over the coming years. There is also an encouraging report of resilience, as in the case of hyacinth macaws, whose nests were impacted by fire during the peak of their reproductive season at Caiman Ecologic...

As a consequence of accelerated and excessive use of pesticides in tropical regions, wilderness areas are under threat; this includes the Pantanal wetlands in the Upper Paraguay River Basin (UPRB). Using a Land Cover Land Use Change (LCLUC) modelling approach, we estimated the expected pesticide load in the Pantanal and the surrounding highlands re...

Building bridges between environmental and political agendas is essential nowadays in face of the increasing human pressure on natural environments, including wetlands. Wetlands provide critical ecosystem services for humanity and can generate a considerable direct or indirect income to the local communities. To meet many of the sustainable develop...

Tayassu pecari

Building bridges between environmental and political agendas is essential nowadays in face of the increasing human pressure on natural environments, including wetlands. Wetlands provide critical ecosystem services for humanity, and can generate a considerable direct or indirect income to the local communities. In order to meet many of the sustainab...

Building bridges between environmental and political agendas is essential nowadays in face of the increasing human pressure on natural environments, including wetlands. Wetlands provide critical ecosystem services for humanity and can generate a considerable direct or indirect income to the local communities. To meet many of the sustainable develop...

Xenarthrans—anteaters, sloths, and armadillos—have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with domestic dogs, these species have been threatened locally, regionally, or even across...

O trabalho colaborativo interpaíses da Bacia do rio Paraguai apresenta áreas prioritárias para ações de manejo e conservação dos recursos naturais, estimulando o engajamento dos diversos atores sociais, governamentais e econômicos para a tomada de ações conjuntas visando o alcance dos 17 Objetivos de Desenvolvimento Sustentável (ODS) das Nações Uni...

Here we compile a data set comprising morphological and life history information of 279 mammal species from 39,850 individuals of 388 populations ranging from 5.83 to 29.75 decimal degrees of latitude and 34.82 to 56.73 decimal degrees of lon- gitude in the Atlantic forest of South America. We present trait information from 16,840 individ- uals of...

Measures of traits are the basis of functional biological diversity. Numerous works consider mean species-level measures of traits while ignoring individual variance within species. However, there is a large amount of variation within species and it is increasingly apparent that it is important to consider trait variation not only between species,...

The Pantanal wetlands represent one of the largest flood plains in the World, with extreme climatic variations between dry and wet seasons. The area shelters a high diversity of habitats, representing the main formations found in this sub-region: grasslands, savannah, forested savannah, riparian forests, bays and salines, and Negro river itself. Th...

We used 2 years of camera-trap surveys conducted by citizen scientists to compare native mammal and bird visits to dominant fruiting-tree species in low and high cattle-impact areas of rarely-flooded ?cordilheira? forests in the Brazilian Pantanal. Monthly fruit censuses showed greater diversity of fruiting-tree species in low cattle-impact areas....

In the neotropics, white-lipped peccaries (Tayassu pecari) are important indicators of intact natural landscapes and the status of medium to large-sized mammals dependent on forest habitats (Altrichter et al. 2012). Recognizing the species’ value as an environmental indicator of landscape and forest conditions in the southern Pantanal, we evaluated...

Resumo: Após detectar problemas de degradação de córregos e matas numa região onde ainda há uma boa diversidade de animais silvestres e corredores ecológicos significativos para a conservação, a WCS-Brasil iniciou um projeto de transferência de tecnologias para os proprietários e produtores da região do alto rio Taboco. Envolvendo mais de 380 pesso...

We developed a framework to incorporate biodiversity information about target species based on expert knowledge into landscape metrics in order to subsidize conservation planning. Four steps make up our framework: 1) biodiversity expert consults, 2) processing and organizing the information, 3) validating the information and 4) incorporating biodiv...

Resumo: Utilizando-se de conceitos de agroecologia foram ministradas aulas em duas escolas do município de Corguinho, MS nas quais foram repassadas técnicas de produção sustentável para alunos do 6º ao 9ª ano do ensino fundamental. Os objetivos a serem alcançados eram de transferir tecnologia para os jovens e futuros produtores, sejam eles propriet...

Fogo Selvagem (FS) is an autoimmune bullous disease with pathogenic IgG autoantibodies recognizing desmoglein 1 (Dsg1), a desmosomal glycoprotein. In certain settlements of Brazil, a high prevalence of FS (3%) is reported, suggesting environmental factors as triggers of the autoimmune response. Healthy individuals from endemic areas recognize nonpa...

The environmental factors that contribute to the development of autoimmune diseases are largely unknown. Endemic pemphigus foliaceus in humans, known as Fogo Selvagem (FS) in Brazil, is mediated by pathogenic IgG4 autoantibodies against desmoglein 1 (Dsg1). Clusters of FS overlap with those of leishmaniasis, a disease transmitted by sand fly (Lutzo...

Triatoma matogrossensis is a Hemiptera that belongs to the oliveirai complex, a vector of Chagas' disease that feeds on vertebrate blood in all life stages. Hematophagous insects' salivary glands (SGs) produce potent pharmacologic compounds that counteract host hemostasis, including anticlotting, antiplatelet, and vasodilatory molecules. Exposure t...

Deforestation and conversion of native habitats to exotic pasture and crops, plus inefficient agricultural and cattle management practices, are placing great pressures on natural resources in the Pantanal and Cerrado. To prevent further deforestation and protect biodiversity, areas already developed for farming and ranching need to be managed more...

We surveyed a wild population of white-lipped peccaries (Tayassu pecari) in the Brazilian Pantanal for evidence of Leptospira interrogans. Serum samples from 71 free-ranging T. pecari were obtained between 2003 and 2005 in the southern Pantanal of Mato Grosso do Sul state. We used microscopic microagglutination to test for antibodies against 14 L....

Pemphigus foliaceus is a life threatening skin disease that is associated with autoimmunity to desmoglein, a skin protein involved in the adhesion of keratinocytes. This disease is endemic in certain areas of South America, suggesting the mediation of environmental factors triggering autoimmunity. Among the possible environmental factors, exposure...

Local extinctions of white-lipped peccary, due to habitat fragmentation and hunting, have been reported throughout its vast geographical range. Recent studies have shown that their role as fruit predators and dispersers affects the biodiversity of certain forest habitats. Fruits may be reduced in deforested habitats, so documenting fruit availabili...

Introduction & Objectives:

Long-term studies in a 2,178ha fragment of semideciduous Atlantic Forest demonstrated important interactions between white-lipped peccaries (Tayassu pecari) and the common palms, Syagrus romanzoffiana and Euterpe edulis. We conducted fruit removal and medium-to-large-sized mammalian exclusion experiments to: (1) quantify seasonal fruit consumption...

In forest fragments, rare habitats contribute to heterogeneity and may provide unique resources for frugivorous species like peccaries with spatially and temporally complex patterns of range use. This study examined seasonal habitat use by two sympatric peccary species (Tayassu pecari and Tayassu tajacu) in an Atlantic forest fragment on the platea...

Este informe contiene una evaluación del estado a nivel de la distribución de dos de las especies de mamíferos ecológica y económicamente más importantes del Neotrópico. El pecarí labiado (Tayassu pecari) y el tapir de tierras bajas (Tapirus terrestris) tienen áreas de distribución enormes; el primero se extiende a lo largo de hábitats tropicales y...

Supplementary Material from: Keuroghlian, A. and Eaton, D.P. (2008) Fruit Availability and Peccary Frugivory in an Isolated Atlantic Forest Fragment: Effects on Peccary Ranging Behavior and Habitat Use. Biotropica, 40, 62-70. The following supplementary material is available for this article online at: www.blackwell-synergy.com/loi/btp Table S1 Mea...

The goal of this study was to examine seasonal frugivory by two sympatric peccary species (Tayassu pecari and T. tajacu) in a small (2178 ha), Atlantic Forest fragment on the inland plateau region of São Paulo State, Brazil. Fruit availability was determined with systematic ground surveys conducted over a 5-yr period. Examining fruit availability t...

Conservation efforts and biological investigations inthe Pantanal are in the early stages of identification of environmental threats and baseline exploratoryresearch. We plan to contribute to these efforts by studying a range of aquatic hábitats that characteristically have diverse and highly productive communities of freshwater invertebrates and f...

A Estação Ecológica dos Caetetus abriga um dos últimos remanescentes da mata atlântica do interior (Floresta Estacional Semidecidual) no Estado de São Paulo, sendo particularmente relevante pelo excelente estado de conservação do ecossistema e pela presença de espécies ameaçadas de extinção, entre as quais se destaca o mico-leão-preto (Leontopithec...

Pemphigus foliaceus (PF) and the endemic form Fogo Selvagem (FS) are mediated by pathogenic antibodies to the EC1-2 domains of desmoglein-1. There is a preclinical phase with antibodies to only EC5. Based on geographic clustering of cases, FS is thought to have an, as yet unidentified, environmental trigger. In this study we have searched for anti-...

We present the first long-term radio telemetry study of area use by white-lipped and collared peccaries in a tropical forest fragment. Population densities of both species in a 2178-ha fragment of semideciduous Atlantic forest in southeastern Brazil were similar to estimates from another regional fragment with 16 times the area. The population of 1...

An ongoing sero-epidemiological study of the Terena reservation of Limao Verde, known to have a high prevalence and incidence of FS, has revealed important information about this autoimmune disease. During surveillance of this population of approximately 1,200, which began in 1994, we documented 43 FS cases and studied the transition from the norma...

Fogo selvagem is an autoimmune blistering skin disease that principally occurs among rural Brazilians living in geographically clumped disease foci. Exposure to hematophagous black flies possibly is related to the cause of the disease. We compared the occurrence, proportions, and richness of simuliid species immatures and the biting activity of adu...

Fogo Selvagem (FS) is an autoimmune disease characterized by subcorneal vesicles and antidesmoglein-1 autoantibodies. Previous epidemiologic data have linked the onset of FS to exposure to an environmental antigen(s). This investigation describes a unique human settlement with an extraordinarily high prevalence of FS, This community is made up of A...