Nathalie Citeli

Catholic University of Brasília · Coleção Zoológica

In 2017, the World Health Organization has included snakebites in category A on the list of neglected tropical diseases, i.e., with a high impact on world health, not receiving the necessary attention. It is fundamental to prevent this health issue through the cooperation among different areas of knowledge. Our goals here were to identify the poten...

The rare Amazonian snake Eutrachelophis papilio is known from only five individuals, from four localities, belonging to its type-series, the more recent collected over 10 years ago. Here, we expand its distribution and describe its color in life for the first time. We also provide an estimate of its distribution area using the minimum convex polygo...

The extensive lack of knowledge on the morphological aspects of South American watersnakes includes a poor understanding of phenotypic parameters, intraspecific variation, and conservation of the trans-Andean Helicops species, Daniel’s Keelback (Helicops danieli Amaral, 1937). For the first time, we provide a multidisciplinary view using key featur...

Although hissing is a common strategy of defence used by snakes, especially of the Phytonidae and Boidae families, few studies have described in detail the acoustics components of this behaviour. Here we gathered eight recordings from six different boas from Brazil and extracted acoustic measurements from their hissing sounds. We also examined the...

De acordo com a União Internacional para a Conservação da Natureza (IUCN), no Distrito Federal existem quatro espécies de répteis ameaçados de extinção: dois quelônios, uma serpente e um lagarto. Neste infográfico apresentamos quem são essas espécies e suas principais características ecológicas. O documento é de fácil acesso e leitura para públicos...

Esse livro é derivado de projetos desenvolvidos por colaboradoras do Laboratório de Coleção Zoológica da Universidade Católica de Brasília. A motivação para essa obra em formato de Atlas é a disponibilização, de forma online e física, de um guia de aulas práticas de fácil consulta para os estudantes não apenas da Universidade Católica de Brasília,...

Studying species interactions in nature often requires elaborated logistics and intense fieldwork. The difficulties in such task might hinder our ability to answer questions on how biotic interactions change with the environment. Fortunately, a workaround to this problem lies within scientific collections. For some animals, the inspection of preser...

The brain is one of the most important organs of vertebrates. Over the years, several studies have investigated brain features under different approaches, such as comparative morphology. Although many recent studies use non-invasive methods, such as micro-CT scan, some methods require access to the brain, such as histological analyses and cell coun...

Atractus potschi es una pequeña serpiente endémica de Brasil. Su distribución está restringida a los biomas Mata Atlántica y Caatinga, en los estados de Alagoas, Bahia y Sergipe. Expandimos su distribución en el interior en 270 km desde el registro más cercano. Esta es también un nuevo registro en la margen izquierda del río São Francisco.

We describe a new watersnake species of the genus Helicops from the left bank of the upper Madeira River, southwestern Amazonia, Brazil. Due to its spotted dorsal pattern, it resembles the sympatric species H. hagmanni, H. leopardinus, and H. polylepis, but a combination of features including, scale counts, prominence of dorsal keels, and hemipenia...

We report a case of erucism provoked by the Automeris egeus Cramer caterpillar and update the distribution of caterpillar poisoning in Brazil, showing the regions with the highest incidence rates. We also correlated the incidence rate with anthropic impact rates in all Brazilian municipalities, taking as a reference the Human Footprint Index. The v...

We report the first record of Siphonops paulensis predation by Burrowing Owl occurred in a Cerrado fragment. In addition to describing the predation event, we discuss the owl's ability to hunt for fossorial species and the presence of poison glands on the amphibian's skin, which can act as a defense against predators.

Chondrichthyes’ sensory systems are part of the nervous system responsible for receiving external and internal stimuli and translating them into nerve impulses that are transmitted to the central nervous system where they are processed.

We report a case of envenomation by Dendrobates tinctorius in the northwest of the Amazon Forest. The patients were two men, who presented with numbness in the right arm and slight numbness in the lower lip, respectively. Dendrobates tinctorius secretions contain pumiliotoxin, one of several toxins found in the dendrobatidis skin, which interferes...

Interactions between vertebrates and invertebrates at similar trophic levels can shape community diversity and interactions, being frogs acting as prey and predators. Although spiders are a common dietary item for anurans, reports of frog predation by spiders are increasingly common in the literature. Anurans are preyed by several arthropod taxa, a...

Você sabe quem são os répteis? Vem aprender um pouco com a gente!

Forecasts indicate an increase in the number of endangered species and a high risk of extinction for the near future, mainly for endemic species on impacted regions, as the amphibians of the genus Euparkerella. Recently, populations of Euparkerella found in poorly sampled forest fragments have been presenting evidence that they might represent new...

Forecasts indicate an increase in the number of endangered species and a high risk of extinction for the near future, mainly for endemic species on impacted regions, as the amphibians of the genus Euparkerella. Recently, populations of Euparkerella found in poorly sampled forest fragments have been presenting evidence that they might represent new...

Previsões para um futuro próximo indicam aumento no número de espécies ameaçadas e alto risco de extinção, principalmente para espécies endêmicas de regiões impactadas, como os anfíbios do gênero Euparkerella. Recentemente, populações de Euparkerella encontradas em fragmentos florestais pouco amostrados têm apresentado evidências de que podem repre...

Little is known about the feeding habits and prey items of many snake species, with very few works identifying vertebrate prey at the minor taxonomic level. Here are presented two new species of birds not previously recorded as preys of the tree boa (Corallus hortulanus) - the Gonden-Chevroned Tanager (Tangara ornata) and the Pale-Breasted Thrush (...

Background: The Atlantic Forest is a hotspot for biodiversity, an area which houses high species richness and endemism, but with high level of threat. With reference to the herpetofauna, until recently there has been no detailed information regarding diversity of snakes recorded in the Atlantic Forest, the number of endemic species and their distr...

Raw data of occurrence of snakes in areas of the Atlantic Forest, Southeastern Brazil

Snake richness from urban forest fragments of Niterói and surroundings, state of Rio de Janeiro, Southeastern Brazil

We present the first record of the Dipsadidae snakes Xenopholis scalaris for the state of Rio de Janeiro and a general distribution map for this species. This record for the Brazilian Atlantic Forest expands the known geographical distribution of X. scalaris and reveals that its populations might not be isolated or disjunctive, but rather rare in t...

We present the first record of the Dipsadidae snakes Xenopholis scalaris for the state of Rio de Janeiro and a general distribution map for this species. This record for the Brazilian Atlantic Forest expands the known geographical distribution of X. scalaris and reveals that its populations might not be isolated or disjunctive, but rather rare in t...

We present the first record of the Dipsadidae snakes Xenopholis scalaris for the state of Rio de Janeiro and a general distribution map for this species. This record for the Brazilian Atlantic Forest expands the known geographical distribution of X. scalaris and reveals that its populations might not be isolated or disjunctive, but rather rare in t...