Karoline Ceron

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Federal University of Ceará | UFC · Departamento de Biologia

Space and time promote variation in network structure by affecting the likelihood of potential interactions. However, little is known about the relative roles of ecological and biogeographical processes in determining how species interactions vary across space and time. Here we study the spatiotemporal variation in predator–prey interaction network...

Biodiversity loss not only implies the loss of species but also entails losses in other dimensions of biodiversity, such as functional, phylogenetic and interaction diversity. Yet, each of those facets of biodiversity may respond differently to extinctions. Here, we examine how extinction, driven by climate and land‐use changes may affect those dif...

Tetrapods (amphibians, reptiles, birds, and mammals) are model systems for global biodiversity science, but continuing data gaps, limited data standardisation, and ongoing flux in taxonomic nomenclature constrain integrative research on this group and potentially cause biased inference. We combined and harmonised taxonomic, spatial, phylogenetic, a...

Trophic interactions have been a long-standing field of interest in ecology, helping to understand the relationships between organisms and how ecosystems function. In this study, we describe the trophic relationships of fish from karst environments in headwater streams of the upper Paraguai River basin. We analyzed the stomach contents of 81 fish s...

Conserving biodiversity requires an efficiently managed network of integrated protected areas (PAs). An extensive PA network safeguards the highly threatened Araucaria angustifolia forests and associated highland grasslands of Brazil and Argentina. However, the efficiency of this network in conserving biodiversity has been poorly explored. We used...

Crop pests threaten agricultural productivity, causing significant economic losses and food security issues. Although various control methods exist, pesticide reliance raises health and environmental concerns. In this sense, the Integrated Pest Management (IPM) is a favored approach that minimizes pesticide use while incorporating diverse pest cont...

Raw data and R-code for the research approach on phylogenetic multiple imputation of natural history traits for tetrapod species. In brief, the code computes the phylogenetic filters, reproduces the grid search procedure to tune XGBoost hyperparameters; compute phylogenetic multiple imputations for traits related to body length, body mass, activity...

Please, access the file through its DOI. Version 1.0.0 (19 April 2024). TetrapodTraits, the full phylogenetically coherent database we developed, is being made publicly available to support a range of research applications in ecology, evolution, and conservation and to help minimise the impacts of biassed data in this model system. The database inc...

Camera traps became the main observational method of a myriad of species over large areas. Data sets from camera traps can be used to describe the patterns and monitor the occupancy, abundance, and richness of wildlife, essential information for conservation in times of rapid climate and land‐cover changes. Habitat loss and poaching are responsible...

Biotic and abiotic factors play a crucial role in determining the distribution of species. These factors dictate the conditions that must be met for a species to thrive in a particular area. Sister species that present some degree of niche overlap can shed light on how they are distributed and coexist in their environment. This study aims to invest...

To identify regions that contribute to the persistence of biodiversity, we (1) predict the potential distribution of the psammophilous squamate species endemic of the Diagonal of Open Formations (DOF) in the current climate, (2) identify survey priority areas, (3) estimate the impacts of climate change in two future CO 2 emission scenarios , and (4...

Identifying risk areas for envenomation by animals is relevant for public health, such as strategic distribution of antivenoms. Coral snakes are highly diverse in the Amazon, inhabit natural and human-modified environments, and the outcome of the cases tends to be serious and potentially lethal due to their neurotoxic venom. By integrating species'...

Extinção provocada por mudanças climáticas e por alterações no uso do solo pode impactar a relação entre espécies, afetando os chamados serviços ecossistêmicos, como controle de pragas e de vetores de doenças

Fire and land cover are two elements intertwined with the natural history of organisms from seasonally dry environments. Here, we investigated the influence of fire attributes (burned area and frequently-burned area) and land cover on the relative abundance of three amphibians from the Pantanal ecoregion that belong to distinct ecomorphological gro...

Predator-prey interactions are fundamental to understand how energy flows in trophic food webs. Frogs play a central role in Neotropical food webs, as they are prey and predators for many animals, including other frogs. In particular, species of the genus Leptodactylus have been reported as predators of several frogs, thus being a model to understa...

Sky Islands present unique landscapes for organismal evolution because they comprise high mountain peaks separated by low valleys with vastly different environmental conditions. The Espinhaço Mountain Range in eastern Brazil is formed of groups of Sky Islands in the states of Minas Gerais and Bahia. Several phylogeographic studies have discovered s...

The diet of an organism is related to its intrinsic characteristics, such as morphology, physiology, and behavior, and those of the prey it consumes. For species occurring in sympatry, the knowledge of the mechanisms that favor the co-occurrence of morphologically and ecologically similar species may be important to understand the resource partitio...

Fishing connects people, aquatic systems, places, and fish consumer markets all around the world. Our understanding of the magnitude and intensity of these interactions are comparatively scarce for some regions, and to date have mostly yielded insights to understand socioecological linkages within marine fisheries. Here, we investigated how socio-d...

Tetrapods (amphibians, reptiles, birds and mammals) have become a central model system for global ecology, conservation, and biodiversity science at large. But continuing data gaps, limited data standardisation, and ongoing dynamics of taxonomic nomenclature put constraints on robust integrative research in this group and potentially causes biased...

Anthropogenic climate and land use changes are the main drivers of biodiversity loss, promoting a major reorganization of the biota in all ecosystems. Biodiversity loss implies not only in the loss of species, but also entails losses in other dimensions of biodiversity, such as functional diversity, phylogenetic diversity and the diversity of ecolo...

Knowing the distribution of venomous snakes of medical importance is essential to identify areas at risk for snakebites. Thus, we used an integrative approach based on the application of geographic distribution data of venomous snakes, species distribution modeling (SDM), spatial organization of snakebites, and information on human population densi...

The Amazonia and the Atlantic Forest, separated by the diagonal of open formations, are two ecoregions that comprise the most diverse tropical forests in the world. The Sphaenorhynchini tribe is among the few tribes of anurans that occur in both rainforests , and their historical biogeographic have never been proposed. In this study, we infer a dat...

Despite increasing knowledge of the ecological interactions between species, the dynamics of anurans in aquatic environments are little explored. Thus, our work aims to assess which factors influence the composition and the ecological interactions of hylid anuran species in oxbow lakes in the middle Purus River, Amazonas state, Brazil. We sampled h...

Snake envenomation is considered a public health problem in tropical countries, where they occur in a high incidence. The present study reports the snake envenomation that occurred in Mato Grosso do Sul state (Brazil) between 2007 and 2017. Epidemiological data were obtained from the online platform of the Notification Disease Information System an...

The geographic distribution of a species is limited by many factors, including its ecological and evolutionary history. Species distribution modeling has been used to evaluate the effects of climate and other variables on geographic distribution and to measure the degree of niche similarity among co-occurring species. Our goal in this study was to...

Despite the increasing amount of knowledge available regarding the ecological interactions between species, the dynamics of anurans in aquatic environments are little explored and understood. In this way, our work aims to assess which factors influence the composition and the ecological interactions of hylid anurans in oxbow lakes in the middle Pur...

Quero saber... … se os sapos cantam mais no inverno ou no verão? A cantoria no brejo é garantida nas duas estações. A maioria das espécies de anfíbios anuros (que inclui sapos, rãs e pererecas) prefere cantar na época mais quente do ano, mas outras preferem o tempo mais frio. Isso porque cada espécie responde de forma diferente ao clima. As chamada...

A new species of frog of the genus Odontophrynus is described from grassland of the subtropical regions of Argentina, Brazil, and Paraguay based on morphological, osteological, bioacoustical, cytogenetic, and molecular evidence. The new species is characterized by having medium size; rostral and eye-nostril glandular warts well developed; several l...

O tempo pode ser considerado um recurso, assim como um eixo do nicho (Post, 2019). Enquanto recurso, ele influencia a distribuição das espécies, já que a escolha de quando se reproduzir é crucial para o desempenho (fitness, Cayuela et al., 2014). Os processos envolvidos na mudança na abundância das espécies dependem da extensão espacial e temporal...

Na maioria dos casos em que temos uma série temporal para estudos herpetológicos (e.g., abundância ou riqueza ao longo dos anos), precisamos saber se a distribuição dos nossos dados apresenta padrões sazonais ou ocorrem ao acaso. Essa informação permite visualizar melhor a ocorrência das espécies em função de variáveis abióticas que possuem correla...

We studied the feeding behavior and sexual size dimorphism of Chiasmocleis mehelyi from a Cerrado area in the state of Mato Grosso do Sul, Brazil. We collected 40 specimens during the rainy season and evaluated the availability of potential prey (terrestrial arthropods) using pitfall traps. The number, frequency, and volume of different prey found...

Beta diversity can be portioned into local contributions to beta diversity (LCBD), which represents the degree of community composition uniqueness of a site compared to regionally sampled sites. LCBD can fluctuate among seasons and ecoregions according to site characteristics, species dispersal abilities, and biotic interactions. In this context, w...

Ophyophagy is a common feeding habit in snakes; however, there are few records of this behavior for the genus Bothrops. Here, we report the first case of predation of Bothrops moojeni upon Amerotyphlops brongersmianus. Our record reinforces the known generalist habit of B. moojeni and indicates an opportunistic diet.

Santana (2020): Diet and morphometry of two poison frog species (Anura, Dendrobatidae) from the plateaus surrounding the Pantanal of Mato Grosso do Sul state, Brazil, Studies on Neotropical Fauna and Environment, ABSTRACT The plateaus surrounding the Pantanal in Mato Grosso do Sul are highly threatened by land-use conversion and are home to Ameereg...

La disponibilidad de presas influye en la dieta de Scinax fuscomarginatus en una zona de Cerrado, en el centro de Brasil La disponibilidad de presas en un entorno puede cambiar según la temporada y este cambio debe considerarse un factor determinante para las dietas de los anuros. Las especies de Scinax son depredadores generalistas que se alimenta...

Understanding the temporal dynamics of communities is crucial to predict how communities respond to climate change. Several factors can promote variation in phenology among species, including tracking of seasonal resources, adaptive responses to other species, demographic stochasticity, and physiological constraints. The activities of ectothermic v...

Here we described three records of predation attempt of Rhinella spp. Two records of Salvator merianae (Duméril and Bibron, 1839) on a Rhinella icterica and on a Rhinella sp., and another record of Aramides saracura (Spix, 1825) on a Rhinella sp. The three records were made using cameras trap in the Atlantic Forest from southern Brazil, Santa Catar...

The crab-eating raccoon is considered one of the less studied Neotropical carnivores, once its nocturnal and inconspicuous habit difficult observations about its behavior. This species is considered a frugivorous-omnivorous species, with opportunistic habits, feeding since fruits and invertebrates to other mammals and lizards. Herein, we provide a...

Depredación de Amerotyphlops brongersmianus (Squamata, Typhlopidae) por Bothrops moojeni (Squamata, Viperidae) en el oeste de Brasil Citation: Oliveira-Jr JG, Ceron K, Mângia S, Silva ICO, Sugai JLMM, Santana DJ. 2020 Predation on Amerotyphlops brongersmianus (Squamata, Typhlopidae) by Bothrops moojeni (Squamata, Viperidae) in West Brazil. Caldasia...

As florestas ciliares no Sul de Santa Catarina têm sofrido recorrentes impactos, principalmente pela introdução de espécies animais e vegetais exóticas, pela pressão agrícola, pelo crescimento das cidades e pela extração do carvão mineral, sendo, no entanto, estruturalmente pouco conhecidas. Este estudo teve como objetivo determinar a estrutura do...

Ophyophagy is a common feeding habit in snakes; however, there are few records of this behavior for the genus Bothrops. Here, we report the first case of predation of Bothrops moojeni upon Amerotyphlops brongersmianus. Our record reinforces the known generalist habit of B. moojeni and indicates an opportunistic diet.

Accidents caused by snakes (snakebites) are considered a public health problem in tropical countries, once they have a high incidence. This paper reports a study on snakebite accidents in the state of Santa Catarina between 2007 and 2014. Epidemiological data were obtained on the online platform of Sistema de Informações de Agravos de Notifcação an...

In this article, we characterize species richness, reproductive modes, the constancy of occurrence, and taxonomic distinctness of the anuran community of the Parque Natural Municipal Augusto Ruschi (PNMAR) in Paraíba valley, southeastern Brazil. We sampled three distinct points in the area between August 2015 and July 2016. Three methodologies were...

In this study, we describe the diet of Leptodactylus podicipinus in South Pantanal. We analysed the stomach content of 30 individuals collected in September 2017 in the Miranda sub-region, Mato Grosso do Sul. We identified 19 prey categories to Order level, out of which Coleoptera was the most representative group and the most important prey catego...

The Atlantic Forest is considered a biodiversity hotspot due to a large concentration of endemic species and an associated high vulnerability to human disturbance. The Serra da Mantiqueira in southeastern Brazil stands out as an important region to anurofauna composition, presenting endemic and threatened species. Conversely, the species compositio...

Para os estados que compõem a região do Brasil, Santa Catarina é aquele que detém o menor conhecimento sobre a composição de sua mastofauna terrestre, característica esta que é ainda mais acentuada na região sul catarinense, onde poucos estudos foram desenvolvidos. O presente trabalho fornece uma lista atualizada de mamíferos terrestres de médio, g...

Among all roads threats, roadkills in highways are considered the greatest source of anthropic pressure on wild vertebrate populations. In Brazil, data on bat-vehicles collisions are scarce and underestimated in studies on roadkilled fauna. Herein we present the first records of bat-vehicles collisions in the southern region of Santa Catarina state...

The genus Physalaemus Fitzinger, 1826 currently comprises 47 described species distributed from Central America (Guianas) to Uruguay (Frost 2016). The genus has been recently organized in two main clades based on molecular data, Physalaemus signifer Clade and Physalaemus cuvieri Clade (Lourenço et al. 2015). The P. signifer Clade, with 15 species,...

We provide a list of amphibians from Parque Estadual da Serra Furada, located in Orleans and Grão-Pará municipalities, in Santa Catarina state, southern Brazil. Monthly sampling was carried out from August 2014 to July 2015, using visual and acoustic surveys. Twenty-seven species of anurans belonging to nine families were recorded on six distinct s...