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127
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Introduction
Additional affiliations
May 2022 - present
Universidad Nacional de Río Cuarto
Position
- Professor (Assistant)
April 2004 - March 2007
Publications
Publications (127)
Effective transboundary corridors play a crucial role in jaguar Panthera onca conservation. Local residents reported jaguar sightings along the Baritú–Tariquía Biological Corridor, which prompted us to carry out this camera-trap survey. We surveyed an area of 1,243 km ² across the corridor to confirm jaguar presence. We used 50 single camera statio...
Context
Habitat loss is a major factor influencing declines in landscape connectivity for many species, but forest patch configuration and changes in matrix permeability can also represent important drivers. An evaluation of which of these factors are predominant is key to guiding landscape planning at a regional scale.
Objectives
We aimed to qua...
ContextHabitat loss is a major factor influencing declines in landscape connectivity for many species, but forest patch configuration and changes in matrix permeability can also represent important drivers. An evaluation of which of these factors are predominant is key to guiding landscape planning at a regional scale.Objectives
We aimed to quantif...
This work aimed to estimate occupancy probabilities of Mus musculus (house mouse) as a function of environmental (NDVI and distance to water bodies) and anthropogenic (proportion of paved streets, distances to illegal dumpsites and railways) variables and to explore the differences in occupancy according to temporal changes of urban growth. We used...
Poaching can have major impacts on wild animal populations and is pervasive in tropical regions. The spatial distribution of this furtive activity is particularly difficult to estimate in large natural areas, and this hinders the development of effective anti-poaching strategies. We used passive acoustic recorders in combination with occupancy mode...
Predators can generate physiological and behavioural responses in prey individuals. Thus, carnivore reintroductions might cause profound changes in communities and ecosystems by modifying antipredator responses. Combining observational and experimental approaches, we compared the short- and long-term antipredator responses of capybaras, Hydrochoeru...
La partición de nicho es un mecanismo mediante el cual las especies de carnívoros simpátricas mitigan la competencia y logran coexistir. La partición de nicho es generalmente medida a lo largo de tres ejes: dieta, espacio y tiempo. El zorro pampeano (Lycalopex gymnocercus) y el zorro de monte (Cerdocyon thous) tienen morfologías y dietas similares...
Niche partitioning is a common mechanism by which sympatric mammal carnivore species mitigate competition and achieve coexistence. This ecological process is usually measured along three axes: diet, space, and time. The Pampas fox (Lycalopex gymnocercus) and the crab‐eating fox (Cerdocyon thous) have similar morphologies and diets and share a wide...
Context.
Habitat loss is a major factor influencing declines in landscape connectivity for many species, but forest patch configuration and changes in matrix permeability can also represent important drivers. To evaluate which of these factors are predominant is key to guiding landscape planning at a regional scale.
Objectives.
We aimed to quantify...
Natural environments worldwide are increasingly restricted to smaller and isolated patches, resulting in major threats to biodiversity. To prioritize conservation efforts, it is important to assess the relative contribution of the habitat remnants to landscape connectivity. We prioritized remnants of Atlantic Forest in Argentina based on their cont...
A cross-sectional survey to assess the prevalence of Enterobius vermicularis infection and its associated factors among the child population of infant, preschool and school age in the urban, rural and indigenous population of Iguazú city, in subtropical Argentina was presented. Additionally, the status of enterobiasis at country level was reviewed...
Aim
The expansion of agriculture is promoting the loss of natural environments and their biotic homogenization. We aimed at understanding whether the replacement of forests and grasslands by tree plantations leads to biotic homogenization of mammal assemblages of two contrasting Neotropical ecoregions or if dispersal or environmental limitations ke...
Abstract.Mammalian carnivores are considered a key group in maintaining ecologicalhealth and can indicate potential ecological integrity in landscapes where they occur. Carni-vores also hold high conservation value and their habitat requirements can guide managementand conservation plans. The order Carnivora has 84 species from 8 families in the Ne...
Biodiversity loss is currently one of the most important societal concerns worldwide, and it is caused mainly by habitat loss and fragmentation, biological invasion, and climate change (Vitousek et al. 1996, Newbold et al. 2015, Bellard et al. 2016). Introduced species can have positive effects on human well‐being, especially when used for liveliho...
Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropica...
Cattle grazing usually has negative effects on wildlife. We studied the effects of cattle on the patterns of habitat use and diel activity of three neotropical herbivores, capybara (Hydrochoerus hydrochaeris), gray brocket (Mazama gouazoubira) and marsh deer (Blastocerus dichotomus) across the savannas of northeastern Argentina. We conducted a came...
Monoculture plantations of fast-growing trees are increasing worldwide and, in many cases, these replace highly diverse natural environments. The Mesopotamian Savannas and the Iberá marshes ecoregions of northeastern Argentina are a mosaic of habitat types in which extensive areas of natural grasslands have been replaced by the planting of non-nati...
Giardia is a parasite distributed worldwide and one of the most prevalent intestinal protozoa in Argentina. We analysed all the national information regarding the prevalence of Giardia infections in humans, animals and environmental surveys over the last 40 years. In this work, we used Preferred Reporting Items for Systematic Reviews and Meta-Analy...
Supplementary files to Iezzi, De Angelo & Di Bitetti 2020 Forest Ecol and Manage
Objective
To estimate trends in the prevalence of child stunting in the population of children under 5 years of age covered by public health programs, between 2009 and 2014 in Misiones, Argentina.
Methods
Using Bayesian model‐based geostatistics, we evaluated 724,872 anthropometric measurements corresponding to 110,633 children. In order to identi...
http://cma.sarem.org.ar/es/especie-nativa/puma-concolor
Given the phylogenetic proximity and similar morphology of opossums (Didelphis spp.), they are good models to study factors that facilitate or impede coexistence of syntopic species and to better understand how landscape changes affect species distributions and habitat use. For this purpose, we used single-species and two-species occupancy models u...
The fragmentation of natural environments is one of the most important threats to biodiversity and involves changes in landscape configuration and habitat quality. The Atlantic Forest of South America has been highly fragmented, which creates concern for the conservation of its biodiversity. We evaluated the effects of forest loss and fragmentation...
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...
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...
Four Neotropical small and medium felids—the ocelot, jaguarundi, margay, and southern tiger cat—have overlapping geographic distributions in the endangered Atlantic Forest. Local studies show that these felids avoid areas with high human impact, but the three smaller ones use human-modified areas more frequently than do ocelots. To understand how l...
Habitat loss and fragmentation represent major threats for the conservation of apex predators, such as the jaguar (Panthera onca). Investigating species' resource selection behavior in response to landscape alteration is critical for developing relevant conservation management plans. The jaguar is found across a variety of habitats with different g...
Large carnivores are key elements of natural ecosystems and most of them are declining due to the impacts of human activities. Jaguars and pumas are the largest felids of the American continent, and particularly jaguars are critically endangered in the Atlantic Forest of South America. As with other tropical forests, the Atlantic Forest has been co...
Competition theory and niche theory suggest that two morphologically similar species may coexist by reducing the overlap of at least one dimension of their ecological niche. The medium and small Neotropical felids are an interesting group of carnivore species for studying intraguild competition. Due to differences in size it is expected that the la...
In situ vegetation measurements to characterize forest type, and understory and arboreal structure from each camera-trap station.
Measurements were realized at 10-m distance from the camera trap, towards the four cardinal points.
(DOCX)
Single-species single-season models for ocelot to estimate ψ (occupancy probability) and p (detection probability).
We run the combination of all the covariates (N = 64) using unmarked package (Fiske and Chandler 2011) with the open-source software R 3.1.22 (R Core Team, 2014). Models were ordered according to the lowest value of AICc.
(DOCX)
Mean occupancy probability for southern tiger cats for the entire study area and discriminated by landscape condition (CF = continuous forest, FF = fragmented forest, PP = pine plantations).
(DOCX)
Frequency of stations with low (0–0.33), intermediate (0.34–0.66) and high (0.66–1) occupancy probability of southern tiger cat according to the landscape condition.
(DOCX)
Expected changes in the daily activity patterns of the four felids due to human impact and for the three small felids due to the ocelot occurrence.
Human impact was measured with the human cost of access and the ocelot occurrence with the occupancy probability estimated through the occupancy models.
(DOCX)
Single-species single-season models for southern tiger cat to estimate ψ (occupancy probability) and p (detection probability).
We run the combination of all the covariates (N = 64) using unmarked package (Fiske and Chandler 2011) with the open-source software R 3.1.22 (R Core Team, 2014). Models were ordered according to the lowest value of AICc....
Beta estimates and their confidence intervals (CI 95%) for each parameter included in the best model of the co-occurrence models for ocelots and southern tiger cats.
(DOCX)
Beta estimates, their confidence intervals (CI 95%), and cumulative AICc weight for each covariate included in the set of best models for ocelots.
Models were selected using the ΔAIC ≤2 for criteria.
(DOCX)
Beta estimates, their confidence intervals (CI 95%), and cumulative AICc weight for each covariate included in the set of best models for southern tiger cats.
Models were selected using the ΔAIC ≤2 for criteria.
(DOCX)
Co-ocurrence models for ocelot (species A) and for southern tiger cat (species B).
Models were ordered according to the lowest value of AICc. Models were run at PRESENCE 6.2.
(DOCX)
Occupancy probability for ocelots.
Location of the camera-trap stations (N = 184) with low (0–0.33, yellow), intermediate (0.34–0.66, orange), and high (0.67–1.00, red) occupancy probability of ocelots. Triangles = stations located in continuous forest, circles = forest fragment stations, squares = pine plantations.
(DOCX)
Covariates and their hypotheses and predictions.
Covariates used to model the occupancy probability and detection probability for the four felids in the Single-species occupancy models and their respective hypotheses and predictions.
(DOCX)
Objective:
Intestinal parasitoses, especially in the less favored populations of tropical and subtropical areas, are a scourge of high impact in public health. We conducted a cross-sectional survey to investigate the prevalence of helminths and protozoa pathogens, malnutrition, and their determinants in children from indigenous Mbyá Guaraní villag...
Large scale plantations of exotic trees (mostly Pinus and Eucalyptus) are replacing vast areas of native environments in South America, with still poorly known consequences on local communities. This is particularly worrisome in endangered ecoregions of high biodiversity that contain endemic and endangered species. This study was aimed at assessing...
Forest plantations of fast-growing exotic species constitute an important economic activity in tropical and temperate regions of developing countries. Large areas of native forests and grasslands are being turned into tree plantations without assessing their impacts on natural communities. We evaluated the effects of replacing native forests by non...
Background:
Intestinal parasitoses are a major concern for public health, especially in children from middle and low-income populations of tropical and subtropical areas. We examined the presence and co-infection of parasites in humans as well as parasitic environmental contamination in Puerto Iguazú, Argentina. We explored the environmental and s...
Environment univariate analysis.
Univariate GLM developed for predicting parasite contamination (left) and co-contamination (right) in the environment at the Iguazú area. Selected variables for representing each group in further model combinations and model selection are in bold.
(DOCX)
Model selection for co-contamination in the environment.
Summary of the model selection procedure for the environmental risk assessment for predicting the parasite co-contamination (number of species of parasites) at the Iguazú Municipality.
(DOCX)
Children univariate analysis.
Univariate GLM developed for predicting parasite presence (left) and co-infection (right) in the child population of the Iguazú area. Selected variables for representing each group in further model combinations and model selection are in bold.
(DOCX)
Model selection for children infection with parasites.
Summary of the mixed effects model selection procedure for selecting the best parsimonious model for predicting parasite infection in the children population of Iguazú area. The Δ column depicts the difference between a model’s Akaike’s Information Criterion (AIC) and that of the best-fitting m...
Confidence intervals for co-contamination risk maps.
Maps representing the co-contamination level predicted by the final model for the environmental contamination by parasites showing a) the lower 95% confidence interval; b) the final model; c) the upper 95% confidence interval.
(TIF)
Local scale variables.
List of variables utilized for describing the environmental conditions at a local scale.
(DOCX)
Individual level variables.
List of variables utilized for describing the children conditions at the individual level.
(DOCX)
Model selection for parasite presence in the environment.
Summary of the model selection procedure for the environmental risk assessment for predicting the presence of parasites at the Iguazú Municipality.
(DOCX)
Model selection for predicting children multi-parasitoses.
Summary of the mixed effects model selection procedure for selecting the best parsimonious model for predicting co-infection level in the children population of Iguazú area. The Δ column depicts the difference between a model’s Akaike’s Information Criterion (AIC) and that of the best-fitti...
Landscape scale variables.
List of variables utilized for describing the environmental conditions at a landscape scale.
(DOCX)
Household level variables.
List of variables utilized for describing the household conditions.
(DOCX)
PHCC level variables.
List of variables utilized for describing the conditions of the PHCC area.
(DOCX)
Our understanding of mammal ecology has always been hindered by the difficulties of observing species in closed tropical forests. Camera trapping has become a major advance for monitoring terrestrial mammals in biodiversity rich ecosystems. Here we compiled one of the largest datasets of inventories of terrestrial mammal communities for the Neotrop...
To investigate knowledge of school-aged children and their perception on intestinal parasites, and to assess knowledge reconstruction on prevention practices after specific training in the subject. We performed an activity package that included the analysis of children's drawings of intestinal parasites, and information and communication technologi...