Cristiano Schetini de Azevedo

Cristiano Schetini de Azevedo
Universidade Federal de Ouro Preto · Department of Biodiversity, Evolution and Environment

Professor

About

98
Publications
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Publications

Publications (98)
Article
Full-text available
The Serra de Itabaiana National Park (PARNASI) is known as an important conservation area in the ecotone between the Atlantic Forest and Caatinga in Northeast Brazil and is one of the main areas of fauna and flora studies in Sergipe. For this reason, there are some studies on its avifauna, which date back to its creation in 2005. However, after 15...
Article
Small mammal species may occur in sympatry, and it is relevant to investigate the mechanisms that lead to coexistence of the closely related species. Despite this, studies evaluating the coexistence of closely related Neotropical marsupials are insipient. The aim of this study was to analyse the mechanisms of resource partitioning between the sympa...
Article
Full-text available
Floral traits mediate the roles of distinct animals as effective pollinators along a generalization/specialization continuum. Many plant species are visited by different pollinator functional groups and the specific contribution of each group is expected to reflect the set of floral characteristics defined by pollination syndromes. Although conside...
Article
Undesirable and problematic behaviors such as an increase in aggressiveness and attempts to escape are frequently provoked when a pet dog is maintained for long periods in stressful environments such as veterinary clinics or shelters. Environmental enrichment and petting are strategies to increase dogs’ welfare. The aim of this pilot study was to e...
Article
Studies with humans and some other animal species have shown that sleep is compromised when the presence of external factors such as light, sound, and temperature surpass normal levels. This study investigated the effects of these environmental conditions on 13 kennelled laboratory dogs, assessing whether each variable interfered with their sleep b...
Article
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A critical aspect in the research about behavioral individual differences is the researchers’ decision of which statistical methods to use to reduce the dimensionality of observed behavioral data. Our aim was to compare the main behavioral dimensions obtained from three different data reduction techniques: the Feaver’s Method, Factor Analysis, and...
Article
Interspecific competition can strongly influence community structure and shape niche breadth and overlap. One of the main factors that determines hummingbird community structure is competition for food. Hummingbirds’ functional attributes, such as beak length and body mass, influence nectar acquisition in flowers. This study evaluates how functiona...
Article
Full-text available
Sleep deprivation has been found to negatively affect an individual´s physical and psychological health. Sleep loss affects activity patterns, increases anxiety-like behaviors, decreases cognitive performance and is associated with depressive states. The activity/rest cycle of dogs has been investigated before, but little is known about the effects...
Conference Paper
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No dia 18 de novembro de 2021 foi realizado o II Workshop Fênix-Emborcação P&D0602 “Estratégias para acelerar a sucessão ecológica em áreas degradadas no entorno da UHEEmborcação: serviços ecológicos executados por animais, em favor da restauração ambiental”. O evento virtual contou com a participação de 52 pessoas entre palestrantes e ouvintes e f...
Article
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Agricultural intensification negatively affects bird communities, and the response of birds to these changes varies from those that survive and increase their populations (disturb-tolerant species) to those that cannot adapt to new conditions and are regionally extinct (disturb-sensitive species). Thus, the present study sought to investigate the b...
Article
Studies of territorial and courtship behavior are lacking for many tropical raptors. From 2006 to 2009, using observations that were not time-limited, we studied the territorial and courtship behaviors of the White-necked Hawk (Buteogallus lacernulatus) and the Mantled Hawk (Pseudastur polionotus) in Rio Doce State Park in eastern Brazil. We observ...
Article
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Frugivory is a plant-animal mutualistic interaction carried out mostly by birds. It consists in the bird consumption of fruits with later dispersion of the plants' seeds, helping in the vegetation regeneration. Frugivory can be affected by the habitat fragmentation and introduction of exotic species, which may alter the species interaction by extin...
Article
Cities are new and expanding ecosystems that harbor a variety of habitats with different degrees of permeability to the local fauna. However, the assessment of urban landscape permeability usually considers biotic and abiotic conditions, with sociopolitical dimensions (e.g., zoning regulations) – also important in shaping urban biodiversity – being...
Article
Full-text available
The search for an effective etiologic treatment to eliminate Trypanosoma cruzi, the causative agent of Chagas disease, has continued for decades and yielded controversial results. In the 1970s, nifurtimox and benznidazole were introduced for clinical assessment, but factors such as parasite resistance, high cellular toxicity, and efficacy in acute...
Preprint
Full-text available
Restoration of tropical riparian forests is challenging, since these ecosystems are the most diverse, dynamic, and complex physical and biological terrestrial habitats. This study tested whether biodiversity can predict ecosystem functions in a human-impacted tropical riparian forest. We explored the effects of several biodiversity components (taxo...
Article
The relations of temperament dimensions obtained in tests traditionally used to assess interindividual differences with long-term behaviors and social rank of animals are poorly understood. Here, our aims were: (a) to investigate the relationships between temperament dimensions obtained through behavioral tests and the social rank of white-eyed par...
Preprint
Full-text available
Sleep deprivation has been found to negatively affect an individual´s physical and psychological health. Sleep loss affects activity patterns, increases anxiety-like behaviors, decreases cognitive performance and it is associated with depressive states. The activity/rest cycle of dogs has been investigated before, but little is known about the effe...
Article
Full-text available
Urban expansion negatively influences biodiversity by eliminating habitats and homogenizing the biotic component, to which many species are unable to respond. However, historical cities, with their protected heritage sites, maintain many fragments of vegetation (gardens, squares, etc.). Such fragments permit the existence of biodiversity, especiall...
Article
Full-text available
The number of animal species threatened with extinction are increasing every year, and biologists are conducting animal translocations, as one strategy, to try to mitigate this situation. Furthermore, researchers are evaluating methods to increase translocation success, and one area that shows promise is the study of animal personality. Animal pers...
Article
Animal conservation translocation is an important tool available to conservation biologists to address problems of isolated, declining or endangered populations. This approach includes both captive‐bred and free‐ranging origin animals, which are used to rescue genetically limited populations and re‐establish extirpated populations. Both soft and ha...
Preprint
Full-text available
Interspecific competition can strongly influence community structure and shape niche breadth and overlap. One of the main factors that determine the hummingbird community structure is competition for food. Hummingbirds functional attributes, such as beak length and body mass, influence nectar acquisition in the flowers, shaping foraging niches acco...
Article
Full-text available
We performed a bibliometric analysis to investigate the efficiency of release techniques (soft and hard–release), to analyse the characteristics and outcomes of the translocation programs, to identify knowledge gaps, and to provide recommendations. Animal conservation studies involving animal release to the wild increased significantly over the 31...
Article
Invasive exotic plants can modify the structure of the environment, producing a cascade of effects on different animal populations, such as birds, which tend to decrease in quantity and diversity of species. The objective of this study was to evaluate how the bird assemblage responds to an invasion by exotic species of plants in an Atlantic Forest...
Article
Impacts of noise pollution are recognized as a source of stress for animals and as a form of environmental degradation. Behavioural changes associated with noise, such as reduction of reproductive success, reduction in feeding behaviour, increase in vigilance behaviours and inability to detect environment acoustic signals, are observed. The aim of...
Article
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Surface activities of humpback whale groups were studied during the reproductive seasons of 2008, 2009 and 2010 on the northern coast of Bahia State, Brazil, near the district of Praia do Forte. The level of surface activity exhibited by 342 groups of whales was evaluated according to the sea state (measured on the Beaufort scale) and cloud coverag...
Article
The collared peccary, Pecari tajacu, is a mammal in the family Tayassuidae from the Americas that occurs from the United States to north Argentina and throughout Brazil. They are very sociable animals, living in groups of six to nine individuals. In their natural habitat, they present diurnal habits, but in captivity, this behaviour may change due...
Article
Full-text available
The Volta Grande region in the Brazilian state of Minas Gerais is classified as of “High Biological Importance” for the conservation of birds in the state. Despite this, the avifauna of the region has yet to be adequately sampled, as evidenced by the few papers on the region in ornithological literature. The results of an avifaunal inventory conduc...
Article
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Temperament assessment is useful in reintroduction programs. Reactivity to humans and flight ability are also important behavioral aspects for captive parrots candidates to reintroduction. The study aimed: a) to evaluate if behavioral responses to environmental enrichment differ as a function of temperament in captive Vinaceous-breasted Amazon parr...
Article
Full-text available
The black-fronted piping guan, Pipile jacutinga, is an endemic Atlantic Forest cracid currently classified as Endangered in Brazil and globally. We present data on the reproductive and agonistic behaviors of a pair of captive reared Black-fronted piping guans reintroduced in a protected area in Serra da Mantiqueira, São Paulo state, Brazil, as well...
Article
The wild boar (Sus scrofa) is a problematic invasive species which has colonized the threatened Brazilian Atlantic Forest. Our objective was to evaluate if population control and seasonality affect the circadian rhythm of wild boar activity. Wild boar activity was monitored by camera-traps for 1 year without population-control methods and 1 year wi...
Chapter
This chapter focuses on the informal learning opportunities that arise from environmental enrichment and what their consequences are for the animal. Environmental enrichment typically involves the addition of novel stimuli to a captive animal's environment in an attempt to improve animal welfare for example, the provision of toys to an enclosure. A...
Article
Captive-born animals frequently lose their anti-predatory abilities due to the absence of encounters with their predators, but these abilities can be regained through specific training. Anti-predator training can, thus, enhance the success of reintroduction programs with predator naïve animals. In addition, a good memory is important to guarantee t...
Article
In the present study, we describe the nest, eggs, and nestlings of the Silvery-flanked Antwren, Myrmotherula luctuosa. One nest was found on 08 May 2017 on the edge of one of the forest fragments of the Serra de Itabaiana National Park, in the state of Sergipe, northeast Brazil, and was monitored until 21 May 2017. The nest, presented the following...
Article
Full-text available
Vegetation stability, resilience and regeneration can be achieved by various ecological processes, the most important of which is seed dispersion. Among animal groups, birds have the largest number of frugivorous species in the Neotropics. The aim of this study was to conduct a bibliometric analysis to detect general patterns and discover knowledge...
Article
The wild boar (Sus scrofa Linnaeus, 1758) is considered one of the 100 worst invasive species in the world and is present in the high-elevation forests in Brazil. Our objective was to understand how landscape and atmospheric conditions affect space use by wild boars. We hypothesized that wild boars would be more frequent at lower elevations, warmer...
Chapter
Full-text available
Video-based analysis is one of the most important tools of animal behavior and animal welfare scientists. While automatic analysis systems exist for many species, this problem has not yet been adequately addressed for one of the most studied species in animal science—dogs. In this paper we describe a system developed for analyzing sleeping patterns...
Article
Chemical pollution of aquatic environments has been increasing in recent times, causing great damage to the ecosystems and to the fishery sector. Pollutants can negatively alter an animals’ life, and in this investigation, we verify if a neutral household detergent, one of the most common aquatic pollutants, causes changes in the behaviour and pers...
Article
Full-text available
Distress can be defined as a biological response of an individual to long-term threats to its homeostasis and it should be avoided from an animal welfare perspective. High levels of stress hormones and the expression of abnormal behaviours are responses normally observed in distressed animals. Captive environments can provoke distress, especially w...
Article
Full-text available
An animal’s welfare depends on an individual’s capacity to adapt to the environment in which it lives. This adaptation is directly associated with the quality of the environment and to the possibility of expressing natural behaviours. Horses kept in stables often display a range of abnormal behaviours related to lack of control over their environme...
Data
Dataset used for the analysis of the police horses’ personalities according to the questionnaires (sheet 1) and novel object (sheet 2), and the number of registers of colic and lameness in the police horses (sheet 3). (XLSX)
Data
Authorization letter from the Ethics Commission of Animals from Pontifícia Universidade Católica de Minas Gerais. (PDF)
Data
Dataset used for the analysis of the sham feeding test responses of the police horses. (XLSX)
Article
Captive animals may lose the ability to recognize their natural predators, making conservation programs more susceptible to failure if such animals are released into the wild. Collared peccaries are American tayassuids that are vulnerable to local extinction in certain areas, and conservation programs are being conducted. Captive-born peccaries are...
Data
This raster was created through the master project "Effect of landscape structure on the connectivity for an occurrence of forest birds in fragments of Atlantic forest in an urban setting" ("Efeito da estrutura da paisagem na conectividade para ocorrência de aves florestais em fragmentos de mata atlântica em um cenário urbano") of the Tropical Biom...
Article
Translocation is a useful tool for the conservation of endangered species, because it enables individuals to be moved between wild populations and between captivity and the wild. The use of captive-raised animals in these processes is sometimes the only option to recover a declining population, but captive-raised parrots are commonly seen as the wo...
Article
Full-text available
Consequences of habitat fragmentation for species occurrence are amongst the most important issues in landscape and conservation ecology. Empirical and theoretical studies have demonstrated that the total amount of habitat, patch size and connectivity have nonlin-ear effects on species survival on multiple spatial and temporal scales. Therefore, po...
Data
Sampling areas used to evaluate the occurrence of forest bird species in Ouro Preto municipality. Minas Gerais State. and southeastern Brazil. UTM coordinates (Zone 23). (DOCX)
Data
Description of the variables used to evaluate microhabitat, local and landscape characteristics of the Atlantic Forest patches studied at Ouro Preto municipality. (DOCX)
Article
Os animais mantidos em zoológicos enfrentam ameaças constantes ao seu bem-estar. Um animal está com alto bem-estar quando está gozando de completa saúde física e mental. Algumas estratégias são utilizadas para se manter o bem-estar dos animais de zoológicos em níveis altos, como o enriquecimento ambiental. O enriquecimento ambiental consiste em ins...
Article
Full-text available
Small mammal populations respond to environmental changes in secondary riparian forest remnants in different ways, depending on the influences of biotic and abiotic variables. The present study evaluated how habitat/microhabitat structure and food availability influence small mammal assemblages in restored riparian forest remnants. Pitfall traps di...
Article
Full-text available
Predation is one of the main factors responsible for the failure of reintroduction/translocation programs. Animal's personality and sex can also influence key behaviors for survival and reproduction. This study aimed to evaluate the influence of anti-predator training, personality and sex on the survival and behaviors of translocated blue-fronted A...
Article
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INTRODUCTION: Enriched environments normally increase behavioral repertoires and diminish the expression of abnormal behaviors and stress-related physiological problems in animals. Although it has been shown that experimental animals infected with microorganisms can modify their behaviors and physiology, few studies have evaluated how environmental...
Article
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During flight, hummingbirds achieve the maximum aerobic metabolism rates within vertebrates. To meet such demands, these birds have to take in as much energy as possible, using strategies such as selecting the best food resources and adopting behaviors that allow the greatest energy gains. We tested whether hummingbirds choose sources that have hig...
Article
Anti-predator behavior and personality have important consequences for the survival of captive-bred animals after reintroduction in the wild. The personality of an animal can be defined as low within-individual variation in behavior relative to between-individual variation in behavior. Mortality caused by predation is the main reason for reintroduc...
Article
Full-text available
INTRODUCTION This retrospective study shows the profile of arachnidism, ophidism, and scorpionism in the Ouro Preto Municipality, Brazil, from January 2007 to December 2013. METHODS The data were gathered from forms of the Epidemiological Surveillance Sector of the town's Health's Municipal Secretary. RESULTS Of the 412 envenomations, 308 were ca...
Article
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Visitors, especially in large noisy crowds, have the potential to influence the life of animals in zoological institutions, the so-called visitor effect. This study aimed to evaluate the effect visitors had on four Yellow-breasted capuchins Sapajus xanthosternos at Belo Horizonte Zoo (BH Zoo), Brazil. The study comprised 60 hours of behavioural obs...
Article
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Environmental enrichment is a technique applied to enhance welfare of captive animals by introducing items that create a complex and stimulate enclosure. In poor environments, animals can exhibit abnormal and stereotypic behaviors due to boredom and stress. Animals behaving normally and with high levels of welfare are suitable and preferred to part...
Article
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We investigated if there are aspects of perches that are more attractive for hummingbirds, such as perch height, diameter, and distance from a food patch. The study was conducted in a fragment of Atlantic Forest of the Itacolomi State Park, in Minas Gerais, Brazil, with artificial feeders simulating a rich food patch. Characteristics of perches use...
Article
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Environmental enrichment is a technique that may reduce the stress of nonhuman animals in captivity. Stress may interfere with normal behavioral expression and affect cognitive decision making. Noninvasive hormonal studies can provide important information about the stress statuses of animals. This study evaluated the effectiveness of different env...
Article
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Monoculturas de árvores, como as de espécies de eucalipto, têm substituído florestas naturais, impactando a fauna pela perda de habitat e recursos. Diversas espécies de aves necessitam de ocos em árvores para nidificar. A falta de recursos como cavidades formadas pela degradação da árvore ou locais apropriados para serem criadas cavidades leva a di...
Article
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The population awareness about environmental conservation is raising and this brought about an increase in the number of environmental restoration studies. Nucleation is a technique used for environmental restoration, where small nuclei of vegetation are established within degraded land. The aim of this paper was to evaluate, by doing a bibliometri...
Article
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Pale-breasted Thrush (Turdus leucomelas) is described as an omnivorous bird that forage solitarily or in pairs on the soil. This note reports a rodent predation event by T. leucomelas. The event was recorded on November 14th 2013, in a riparian Forest fragment of Grande River, in Igarapava Municipality, Sao Paulo, Brazil. Although the presence of s...