Gisela Bellini

Gisela Bellini
Instituto Nacional de Limnología · Herpetología

About

20
Publications
13,980
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319
Citations
Citations since 2016
9 Research Items
252 Citations
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201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050

Publications

Publications (20)
Article
Full-text available
Reproductive biology of Bothrops alternatus in a South America template area: male reproductive cycle. The pitviper Bothrops alternatus is one of the most widely distributed and abundant venomous snake species in the South America template area. However, knowledge about their reproductive biology is mostly known for data from Brazilian populations,...
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Full-text available
Conservation area networks (CAN) must overlap spatial patterns of conservation priorities in order to ensure their persistence. Threatened species are among the least controversial biodiversity features taken into account to guide conservation policies. Due to growing human pressure and climate change worldwide, chances of planning an effective CAN...
Article
Full-text available
Studying life history (LH) allows a broader understanding of organisms and populations’ responses to their environments. Snakes display an immense diversity in terms of reproductive traits, which is reflected in LH traits. The aim of this study is to compare reproductive biology and morphological variables in viviparous and oviparous snakes of a te...
Article
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The genus Micrurus comprises nearly 80 endemic species in the American continent. Knowledge on its natural history is based on populations from Brazil and Uruguay, making it necessary to intensify ecological research in Argentina. We present data on morphology, diet, and reproduction for a threatened Argentine population of M. altirostris from the...
Article
Full-text available
Species distribution models (SDMs) estimate the geographical distribution of species although with several limitations due to sources of inaccuracy and biases. Empirical tests arose as the most important steps in scientific knowledge to assess the efficiency of model predictions, which are poorly rigorous in SDMs. A good approach to the empirical d...
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Urbanization transforms the landscape and generates loss of pristine habitats. We investigated the urbanization effect on bird communities in a growing South American city (Santa Fe, Argentina) and hypothesized that if habitat structure and human disturbance change along an urban gradient, the richness and abundance of trophic guilds should also va...
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Owing to accelerated biodiversity loss caused by human activities, the protected areas (PAs) are the main response to mitigate this crisis. The Iberá Natural Reserve (INR) includes 13000 km2 of private and state lands, which contain wetland and upland areas with high biodiversity, endemism and significant populations of threatened species. In order...
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One of the current challenges of evolutionary ecology is to understand the effects of phylogenetic history (PH) and/or ecological factors (EF) on the life‐history traits of the species. Here, the effects of environment and phylogeny are tested for the first time on the reproductive biology of South American xenodontine snakes. We studied 60% of the...
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We present new data on the distribution, morphology and conservation status of a rare species of coral snake, Micrurus silviae, recently described with few specimens. We analyzed 20 additional specimens from 12 localities in Argentina, increasing its distribution 320 km westward and filling gaps in the known distribution between Brazil and Paraguay...
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Los grandes ríos del Plata fluyen hacia el sur desde latitudes intertropicales a templadas y extienden la distribución de especies tropicales. Examinamos las siguientes hipótesis sobre relaciones biogeográficas de la ofidiofauna entre tramos de los ríos: el Alto Paraná tiene mayor afinidad con el Alto Uruguay, el Paraná Medio con el Paraguay Inferi...
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Communities are complex and dynamic systems that change with time. The first attempts to explain how they were structured involve contemporary phenomena like ecological interactions between species (e.g., competition and predation) and led to the competition-preda-tion hypothesis. Recently, the deep history hypothesis has emerged, which suggests th...
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We analyzed the ecology of Hydrodynastes gigas, one of the largest snakes of South America, studying 342 specimens obtained during 21 years of field sampling including road sampling, intensive searches and opportunistic encounter methods. Females attained sexual maturity at larger relative body size than males, and were largest, had biggest heads a...
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Two hypotheses have been proposed to explain the differences among species within present-day communities: the competition-predation hypothesis (CPH) and the deep history hypothesis (DHH). However, the lack of information about the ecology of many species hinders clarification of the role of these different, though not mutually exclusive, hypothese...
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The ecology of the genus Thamnodynastes has received little study, and problems with its taxonomy have generated imprecise and incorrect data. We analyzed the reproductive biology, sexual dimorphism, feeding ecology, habitat use, and seasonal activity of Thamnodynastes hypoconia in its subtropical—temperate area of distribution. We discuss its main...
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RESUMEN A más de una década de la primera Lista Roja de herpetofauna amenazada propuesta por la Asociación Herpetológica Argentina (AHA 2000), se recategorizaron las serpientes a partir de nueva información taxonómica, biogeográfica y bio-ecológica, además de modificaciones metodológicas respecto a la evaluación anterior. Mediante la participación...
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Revisamos el método utilizado para determinar especies amenazadas en la Argentina, con los objetivos de: (1) que pueda ser empleado consistentemente por diferentes personas reduciendo la subjetividad, (2) brindar una guía sobre cómo evaluar los factores que conducen al riesgo de extinción, (3) proporcionar a los usuarios de listas rojas una mejor c...
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Threatened species are those that have a high probability of extinction or are close to this situation to continue direct pressure on them or their habitats. From this definition we analyze problems and biases in the categories of threat of Argentine snakes, showing examples where taxonomic changes (Linnaean shortfall), gaps in knowledge about the...

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