Resumen Introducción: A nivel mundial, la expansión de actividades humanas continúa teniendo un riesgo para muchas especies de cuerpo grande, tal como los jaguares. Conforme continúen estas actividades, es crucial entender el impacto de paisajes modificados sobre el tamaño de su territorio. Objetivo: Evaluar la importancia de terrenos protegidos y no protegidos sobre el tamaño de su territorio a lo largo de su rango. Métodos: Usamos datos de tamaño de los territorios de 117 jaguares en varias categorías de protección de hábitats y biomas humanos. Usamos un Modelo Mixto Lineal Generalizado para probar traslapes espaciales y de territorios con categorías de conservación y biomas humanos. Resultados: La mayoría de los territorios estaban en Unidades de Conservación de Jaguares (62 %), seguido por Áreas protegidas (21 %), Tierras de Pueblos Indígenas (10 %) y Corredores de Movimiento de Jaguares (3 %), en donde el 76 % de los jaguares vivían dentro de alguna de las primeras tres modalidades de conservación. Sin embargo, fuera de áreas protegidas, pastizales, tierras de cultivo, terrenos seminaturales y otros biomas humanos también fueron importantes (24 % de individuos). Jaguares en pastizales, tierras de cultivo, y terrenos seminaturales tuvieron territorios más grandes. Conclusiones: Aunque las áreas de conservación fueron dominantes, áreas con impacto humano parecieron jugar un rol considerable en satisfacer los requerimientos espaciales de los jaguares.

Abstract Introduction: Worldwide, expanding human activities continue to be a threat to many large-bodied species, including jaguars. As these activities continue, it is critical to understand how home range sizes will be impacted by human-modified landscapes. Objective: To evaluate the importance of protected and unprotected land on home-range size across their range. Methods: We used home range data from 117 jaguars in several habitat protection categories and human biome types. We used a Generalized Linear Mixed Model to test home range and spatial overlap with conservation categories and human biomes. Results: Most home-ranges were in Jaguar Conservation Units (62 %), followed by Protected Areas (21 %), Indigenous People's Lands (10 %) and Jaguar Movement Corridors (3 %), where 76 % of the jaguars lived inside one the first three conservation types. However, outside of conserved land, Rangeland, Cropland, Seminatural land and other human biomes were also important (24 % of the individuals). Jaguars in Rangeland, Cropland and Seminatural land had the largest home ranges. Conclusions: Although conservation land was dominant, human-impacted lands appear to play a considerable role in satisfying the spatial requirements of jaguars.

ABSTRACT: Knowledge of species that are distributed in areas with forest management is essential to understand the negative and positive impacts of this activity on the conservation of species considered for protection by the Mexican government through NOM-059-SEMARNAT-2010, such as the jaguar (Panthera onca). The objective was to identify the species and sex of sympatric felines present in the Los Ocotones forest use area (LOSOCO), located 36 km from Cintalapa, Chiapas. Thirty-three fecal samples were collected and analyzed to identify individual genetic profiles. Two male pumas, a female puma, a male jaguar, a female ocelot/tigrillo and a male puma/jaguarundi were identified. The genetic analysis provided relevant information on the role played by the area in hosting priority feline species for conservation purposes. It is necessary to strengthen protection actions that help ensure their permanence in the region.

RESUMEN: El conocimiento de las especies que se distribuyen en zonas con manejo forestal es fundamental para comprender los impactos negativos y positivos de esta actividad en la conservación de especies consideradas en protección por el gobierno mexicano a través de la NOM-059-SEMARNAT-2010, como es el caso del jaguar (Panthera onca). El objetivo fue identificar especies y sexo de felinos simpátricos presentes en el área de aprovechamiento forestal Los Ocotones (LOSOCO), ubicada a 36 km de Cintalapa, Chiapas. Se colectaron 33 muestras fecales y se analizaron para identificar perfiles genéticos individuales. Se identificaron dos pumas machos, un puma hembra, un jaguar macho, un ocelote/tigrillo hembra y un puma/leoncillo macho. El análisis genético aportó información relevante sobre el papel que juega la zona por albergar especies de felinos prioritarias para su conservación. Se requiere fortalecer las acciones de protección que ayuden a garantizar su permanencia en la región.

The Iberian wolf (Canis lupus) is the top predator in the Iberian environments in which it lives, feeding on a wide range of species, thus encountering a wide range of disease agents. Therefore, the wolf can serve as sentinel of environmental contamination with pathogens. We investigated the exposure of free-living wolves to 14 serovars of Leptospira interrogans sensu lato. Kidney samples from 49 wolves collected from 2010-2013 in northwestern Spain were analysed by culture, direct immunofluorescence and polymerase chain reaction. Tissue fluids were analysed for antibodies by a microscopic agglutination test. Ten wolves (observed prevalence: 20%, 95% confidence interval = 11-33%) showed evidence of contact with leptospires, eight through direct detection and nine through serology (7 wolves were positive according to both techniques). Titres below the cut-off level were also detected in seven cases. Serovars confirmed were Canicola (n = 4), Icterohaemorrhagiae (n = 3) and Sejroë, Ballum and Grippotyphosa (n = 1 each), indicating that wolves were infected with serovars for which dogs, rodents and ungulates, are the natural hosts and supporting the utility of the wolf and other large predators as environmental sentinels for pathogens.