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This study presents the first successful capture using GPS tagging of a jaguar (Panthera onca) using a minimally invasive capture system (MICS). We used snare-foot traps and a MICS during two capture campaigns in a fragment of Atlantic Forest in southeastern Brazil. The specimen disarmed snares on different occasions, and capture was only possible with the MICS. The captured jaguar, an estimated 16-year-old adult male, was monitored using a GPS Vertex Plus Iridium collar with an optimal performance of 86% in expected locations. The jaguar's home range (659 km2 by MPC and 174 km2 by 95%K) was within the observed range for the species and the animal was primarily maintained in protected areas. The habitat types most frequently used were native grassland (27.2% of 4798 fixes), marsh (24.8%), and dense lowland forest (24.7%). The use of a MICS for trapping jaguars is a promising technique that shows advantages in terms of efficiency, selectivity, portability, reduced potential risk of injury to animals or trappers, and animal stress compared to other capture methods used for the species.

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Modern and paleoclimate changes may have altered species dynamics by shifting species' niche suitability over space and time. We analyze whether the current genetic structure and isolation of the two large American felids, jaguar (Panthera onca) and puma (Puma concolor), are mediated by changes in climatic suitability and connection routes over modern and paleoclimatic landscapes. We estimate species distribution under 5 climatic landscapes (modern, Holocene, last maximum glaciations [LMG], average suitability, and climatic instability) and correlate them with individuals' genetic isolation through causal modeling on a resemblance matrix. Both species exhibit genetic isolation patterns correlated with LMG climatic suitability, suggesting that these areas may have worked as "allele refuges." However, the jaguar showed higher vulnerability to climate changes, responding to modern climatic suitability and connection routes, whereas the puma showed a continuous and gradual transition of genetic variation. Despite differential responsiveness to climate change, both species are subjected to the climatic effects on genetic configuration, which may make them susceptible to future climatic changes, since these are progressing faster and with higher intensity than changes in the paleoclimate. Thus, the effects of climatic changes should be considered in the design of conservation strategies to ensure evolutionary and demographic processes mediated by gene flow for both species.

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INTRODUCTION: Children, teenagers and young men are increasingly experiencing their well-being related to the internet and the new digital technologies. The objective of this study is to describe the presence of Cyberbullying, Sexting and Grooming in students in Chile according to gender and type of school management or administrative dependency. SUBJECTS AND METHOD: Exploratory and descriptive study. The sample design was non-probabilistic by quotas in 60 transactional establish ments. The sample was weighted considering the age range and gender according to national data. The Digital Literacy Questionnaire "Divergente-SerDigital" (2010) was applied to a sample of 12,926 students, aged 5 to 18 years. 4,790 men and 8,136 women. Average age 13.17 years. Frequencies were analyzed and the Chi-squared contrast statistic was used to determine statistically significant differences. RESULTS: The item Total Grooming (cheating) is presented as the main risk, 12.6% in municipal dependent schools (MDS), 8.2% in subsidized private schools (SPS), and 8.4% in private schools (PS). When considering gender, Grooming is observed mainly in Men, 20.4% in MDS, 19.9% in SPS and, 16.9% in PS. It is noteworthy that Women perform less Cyberbullying (active) according to school administration with 4.2% in MDS, 2.4% in SPS and, 2.6% in PS, with statistically significant differences (p < 0.05) in relation to Men. It also highlights the indicator Sexting (send) in Men, higher in PS with 10.6%. CONCLUSION: Grooming, Cyberbullying and Sexting risks are presented in the three types of administration with specific characteristics. These data can be a guide to work in promotion and prevention as well as in the schematization of cases according to type of school administration.

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INTRODUCCIÓN: Niños y adolescentes experimentan su bienestar cada día más relacionado con internet y las nuevas tecnologías digitales. El objetivo del manuscrito es describir la presencia de Ciberbullying (acoso o agresión entre menores o pares en internet), Sexting (difundir intimidad sexual) y Groo ming (engaño online a menores de edad por parte de adultos) en los estudiantes en Chile según sexo y tipo de administración escolar. SUJETOS Y MÉTODO: Estudio de carácter exploratorio y descriptivo. El diseño muestral fue no probabilístico por cuotas en 60 establecimientos de carácter transaccional. La muestra se ponderó considerando rango de edad y sexo según datos nacionales. Se aplicó el Cuestionario de Alfabetización Digital "Divergente-SerDigital" (2010) a una muestra de 12.926 estudiantes, rango de edad: 5 a 18 años. 4.790 hombres y 8.136 mujeres. Edad promedio 13,17 años. Se analizaron frecuencias y se utilizó el estadístico de contraste Chi cuadrado para determinar diferencias estadísticamente significativas. RESULTADOS: El ítem Grooming total (engaño) se presenta como el principal riesgo, 12,6% en Colegios Municipales (CM), 8,2% en Colegios Particulares Subvencionados (CPS) y 8,4% Colegios Particulares Privados (CPP). Al considerar el sexo se observa Grooming principal mente en Hombres, 20,4% en CM, 19,9% CPS y 16,9% CPP. Destaca que las Mujeres realizan menos Ciberbullying (activo) según administración escolar con 4,2% en CM, 2,4% CPS y 2,6% CPP, con diferencias estadísticamente significativa (p < 0,05) en relación a los Hombres. Además destaca el indicador Sexting (enviar) en Hombres, más alto en los CPP con 10,6%. CONCLUSIÓN: Los riesgos Grooming, Ciberbullying y Sexting se presentan en los tres tipos de administración con características específicas. Estos datos pueden ser guía del trabajo en promoción y prevención como en la tematización de casos según tipo de administración escolar.

INTRODUCTION: Children, teenagers and young men are increasingly experiencing their well-being related to the internet and the new digital technologies. The objective of this study is to describe the presence of Cyberbullying, Sexting and Grooming in students in Chile according to gender and type of school management or administrative dependency. SUBJECTS AND METHOD: Exploratory and descriptive study. The sample design was non-probabilistic by quotas in 60 transactional establish ments. The sample was weighted considering the age range and gender according to national data. The Digital Literacy Questionnaire "Divergente-SerDigital" (2010) was applied to a sample of 12,926 students, aged 5 to 18 years. 4,790 men and 8,136 women. Average age 13.17 years. Frequencies were analyzed and the Chi-squared contrast statistic was used to determine statistically significant differences. RESULTS: The item Total Grooming (cheating) is presented as the main risk, 12.6% in municipal dependent schools (MDS), 8.2% in subsidized private schools (SPS), and 8.4% in private schools (PS). When considering gender, Grooming is observed mainly in Men, 20.4% in MDS, 19.9% in SPS and, 16.9% in PS. It is noteworthy that Women perform less Cyberbullying (active) according to school administration with 4.2% in MDS, 2.4% in SPS and, 2.6% in PS, with statistically significant differences (p < 0.05) in relation to Men. It also highlights the indicator Sexting (send) in Men, higher in PS with 10.6%. CONCLUSION: Grooming, Cyberbullying and Sexting risks are presented in the three types of administration with specific characteristics. These data can be a guide to work in promotion and prevention as well as in the schematization of cases according to type of school administration.

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Genealogical records of animals (studbook) are created to avoid reproduction between closely related individuals, which could cause inbreeding, particularly for such endangered species as the Panthera onca (Linnaeus, 1758). Jaguar is the largest felid in the Americas and is considered an important ecological key species. In Mexico, wild jaguar populations have been significantly reduced in recent decades, and population decline typically accompany decreases in genetic variation. There is no current census of captive jaguars in Mexico, and zoos do not follow a standardized protocol in breeding programs based on genetic studies. Here, we emphasise the importance of maintaining an adequate level of genetic variation and propose the implementation of standardised studbooks for jaguars in Mexico, mainly to avoid inbreeding. In addition, achieving the aims of studbook registration would provide a population genetic characterisation that could serve as a basis for ex situ conservation programmes.

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Faeces provide relevant biological information which includes, with the application of genetic techniques, the sex and identity of individuals that defecated, thus providing potentially useful data on the behaviour and ecology of individuals, as well as the dynamics and structure of populations. This paper presents estimates of the sex ratio of different felid species (jaguar, Panthera onca; puma, Puma concolor; and ocelot/margay, Leopardus pardalis/Leopardus wiedi) as observed in field collected faeces, and proposes several hypotheses that could explain the strikingly high proportion of faeces from male jaguars. The proportion of male and female faeces was estimated using a non-invasive faecal sampling method in 14 study areas in Mexico and Brazil. Faecal samples were genetically analysed to identify the species, the sex and the individual (the latter only for samples identified as belonging to jaguars). Considering the three species, 72.6% of faeces (n = 493) were from males; however, there were significant differences among them, with the proportion from males being higher for jaguars than for pumas and ocelots/margays. A male-bias was consistently observed in all study areas for jaguar faeces, but not for the other species. For jaguars the trend was the same when considering the number of individuals identified (n = 68), with an average of 4.2±0.56 faeces per male and 2.0±0.36 per female. The observed faecal marking patterns might be related to the behaviour of female jaguars directed toward protecting litters from males, and in both male and female pumas, to prevent interspecific aggressions from male jaguars. The hypothesis that there are effectively more males than females in jaguar populations cannot be discarded, which could be due to the fact that females are territorial and males are not, or a tendency for males to disperse into suboptimal areas for the species.

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A new record of a very rarely observed mammal, the bushy-tailed opossum, Glironia venusta (Didelphimorphia), was obtained for the Adolpho Ducke Forest Reserve, Manaus, Amazonas state, Brazil. Only 17 other records existed of this species, most from the 1980s. There were only three previous records of the species from Brazil (in the states of Pará, Amazonas and Rondônia). This new record supports the notion that G. venusta is a locally rare species throughout its range, but widely distributed in Brazilian Amazonia.

Um indivíduo de Glironia venusta (Didelphimorphia), foi observado na Reserva Florestal Adolpho Ducke, Manaus, Amazonas, Brasil. Existem apenas 17 outros registros publicados desta espécie de marsupial, a maioria da década de 80. No Brasil, G. venusta havia sido registrada em três outras localidades, no Pará, Amazonas e Rondônia. Com este registro em uma das áreas mais intensivamente estudadas na Amazônia, ganha reforço a noção de que G. venusta é uma espécie rara localmente, mas de ampla distribuição na Amazônia brasileira.

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A new record of a very rarely observed mammal, the bushy-tailed opossum, Glironia venusta (Didelphimorphia), was obtained for the Adolpho Ducke Forest Reserve, Manaus, Amazonas state, Brazil. Only 17 other records existed of this species, most from the 1980s. There were only three previous records of the species from Brazil (in the states of Pará, Amazonas and Rondônia). This new record supports the notion that G. venusta is a locally rare species throughout its range, but widely distributed in Brazilian Amazonia.

Um indivíduo de Glironia venusta (Didelphimorphia), foi observado na Reserva Florestal Adolpho Ducke, Manaus, Amazonas, Brasil. Existem apenas 17 outros registros publicados desta espécie de marsupial, a maioria da década de 80. No Brasil, G. venusta havia sido registrada em três outras localidades, no Pará, Amazonas e Rondônia. Com este registro em uma das áreas mais intensivamente estudadas na Amazônia, ganha reforço a noção de que G. venusta é uma espécie rara localmente, mas de ampla distribuição na Amazônia brasileira.

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El objetivo del trabajo fue adaptar el Nutripez a un producto de humedad intermedia mediante las técnicas de infusión seca y mezclado. En el primer caso, el producto seco salado se sumergió en diferentes soluciones de humectantes en las que se varió la concentración de los solutos, el tiempo y la temperatura de la solución; en el segundo los humectantes se adicionaron directamente a la pulpa de sardina previamente cocida. Los productos obtenidos por ambos métodos se empacaron individualmente en sobres de celopolyal y se almacenaron durante un mes a 25 ñ 2ºC y 34 ñ 3 por ciento HR. Con ambos métodos se obtuvieron productos estables a la rancidez y microbiológicamente aptos para consumo, con una actividad de agua (aW) entre 0,76 y 0,84, un contenido de humedad entre 38 y 42 por ciento y un pH entre 5,5 y 6,0. En la evaluación sensorial de ambos productos se observó preferencia por el producto elaborado por el método de mezclado

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