First record of Leishmaniasis in wild Jaguars (Panthera onca) from Mexico

Leishmaniasis is a vector-borne disease and parasitic zoonosis that occurs worldwide (i.e., Latin America, Africa and Eurasian countries; Desjeux 2005, Dahroug et al. 2010, 2011, Otranto et al. 2013). It is caused by parasitic kinetoplastids of the Leishmania genus transmitted by arthropod vectors (i.e. sandflies such as Lutzomyia spp.) and presents a great diversity of clinical profiles, depending on the affected areas (Otranto et al. 2013). This disease mainly affects humans and wild carnivoran species, mostly canids, with dogs as major reservoir hosts (Deane & Deane 1954, Silva et al. 2000, Figueiredo et al. 2008, Dantas-Torres et al. 2012). Even though domestic and wild felids are unusual reservoirs, and rarely develop the disease, several studies suggest that these species may play an important role in the epidemiology of the disease (Poli et al. 2002, Maia et al. 2008, Nasereddin et al. 2008, Dantas-Torres et al. 2012). Here we report the first record of a clinical manifestation of Leishmaniasis disease in a wild Jaguar (Panthera onca) in Quintana Roo, Mexico.Leishmaniasis is a vector-borne disease and parasitic zoonosis that occurs worldwide (i.e., Latin America, Africa and Eurasian countries; Desjeux 2005, Dahroug et al. 2010, 2011, Otranto et al. 2013). It is caused by parasitic kinetoplastids of the Leishmania genus transmitted by arthropod vectors (i.e. sandflies such as Lutzomyia spp.) and presents a great diversity of clinical profiles, depending on the affected areas (Otranto et al. 2013). This disease mainly affects humans and wild carnivoran species, mostly canids, with dogs as major reservoir hosts (Deane & Deane 1954, Silva et al. 2000, Figueiredo et al. 2008, Dantas-Torres et al. 2012). Even though domestic and wild felids are unusual reservoirs, and rarely develop the disease, several studies suggest that these species may play an important role in the epidemiology of the disease (Poli et al. 2002, Maia et al. 2008, Nasereddin et al. 2008, Dantas-Torres et al. 2012). Here we report the first record of a clinical manifestation of Leishmaniasis disease in a wild Jaguar (Panthera onca) in Quintana Roo, Mexico

Presencia de Toxascaris leonina y Cystoisospora felis en Lince Rojo (Lynx rufus escuinapae) en México

El Lince Rojo (Lynx rufus) es una especie de carnívoro mediano con una amplia distribución en Norteamérica, abarcando desde el sur de Canadá hasta México (Hall 1981). En la zona central de México se encuentra la subespecie Lynx rufus escuinapae, la cual habita principalmente el bosque mixto de pino-encino y bosque de oyamel (Romero 2005). De acuerdo a la Lista Roja de Especies Amenazadas de la UICN, la especie se encuentra catalogada como de Baja Preocupación (Kelly et al. 2008) y como especie En Peligro por el U.S. Fish and Wildlife Service (1973). La pérdida de hábitat y la cacería ilegal sonsus principales amenazas (Kelly et al. 2008).El Lince Rojo (Lynx rufus) es una especie de carnívoro mediano con una amplia distribución en Norteamérica, abarcando desde el sur de Canadá hasta México (Hall 1981). En la zona central de México se encuentra la subespecie Lynx rufus escuinapae, la cual habita principalmente el bosque mixto de pino-encino y bosque de oyamel (Romero 2005). De acuerdo a la Lista Roja de Especies Amenazadas de la UICN, la especie se encuentra catalogada como de Baja Preocupación (Kelly et al. 2008) y como especie En Peligro por el U.S. Fish and Wildlife Service (1973). La pérdida de hábitat y la cacería ilegal sonsus principales amenazas (Kelly et al. 2008)

Top predator ecology and conservation: Lesson from jaguars in southeastern Mexico

Our research is the most comprehensive study of jaguar behavior ecology in Mexico. By analyzing and describing the movements and use of the space, as well as the interactions among individual jaguars, we can better understand their behavioral differences, habitat use, and home range. This type of information is critical for the development and implementation of effective and appropriate conservation strategies. We identified home range size for 14 jaguars in a 13‐year period and described the interspecific relations and use of space by the percentages of overlap of the territories between individuals. Collectively, the average home range size was larger than 200 km2, ranging from 48 to 633 km2 and averaging 296 km2 for males varied and 37–435 km2, with an average of 148 km2, for females. However, home range sizes did not differ significantly among males or females. Male territory overlapped about 3.3% on average (range 2.5–15.5%), suggesting that most of the time males avoid each other. Average overlap of female territory was 12%, ranging from 7 to 100%. Males share an average of 18% (range 2–56%) of its territory and with up to five females, suggesting that a given male may be related to all of them at certain periods of time. There were no seasonal changes (dry and rainy seasons) in home range sizes for both male and females. Our research is an important contribution to the ecological information essential for landscape‐level conservation plans for the protection of the jaguars and the biological diversity of the wider Yucatan Peninsula in which they inhabit. Our research is the most comprehensive study of jaguar behavior ecology in Mexico. By analyzing and describing the movements and use of the space, as well as the interactions among individual jaguars, we can better understand their behavioral differences, habitat use, and home range. This type of information is critical for the development and implementation of effective and appropriate conservation strategies. We identified home range size for 14 jaguars in a 13‐year period and described the interspecific relations and use of space by the percentages of overlap of the territories between individuals. Collectively, the average home range size was larger than 200 km2, ranging from 48 to 633 km2 and averaging 296 km2 for males varied and 37–435 km2, with an average of 148 km2, for females. However, home range sizes did not differ significantly among males or females. Male territory overlapped about 3.3% on average (range 2.5–15.5%), suggesting that most of the time males avoid each other. Average overlap of female territory was 12%, ranging from 7 to 100%. Males share an average of 18% (range 2–56%) of its territory and with up to five females, suggesting that a given male may be related to all of them at certain periods of time. There were no seasonal changes (dry and rainy seasons) in home range sizes for both male and females. Our research is an important contribution to the ecological information essential for landscape‐level conservation plans for the protection of the jaguars and the biological diversity of the wider Yucatan Peninsula in which they inhabit.The authors would like to thank the Alianza WWF – Fundacion Telmex/Telcel, the Universidad Nacional Autonoma de Mexico (project DGAPA, PAPIT IN208017), Amigos de Calakmul A.C., and the BBVA Foundation Award for the Conservation of Biodiversity (2017) for funding and support for this project

Las Ciénegas del Lerma, importancia de este cuerpo de agua y los efectos de la contaminación

Las ciénegas del río Lerma son el hogar de una gran variedad de especies animales y vegetales de gran importancia para el equilibrio ecológico; sin embargo, la contaminación ha provocado la muerte de muchas de ellas. Este artículo pretende con concientizar sobre la necesidad de recuperar esta área natural, incluso calificada como protegida

A database of common vampire bat reports

The common vampire bat (Desmodus rotundus) is a sanguivorous (i.e., blood-eating) bat species distributed in the Americas from northern Mexico southwards to central Chile and Argentina. Desmodus rotundus is one of only three mammal species known to feed exclusively on blood, mainly from domestic mammals, although large wildlife and occasionally humans can also serve as a food source. Blood feeding makes D. rotundus an effective transmissor of pathogens to its prey. Consequently, this species is a common target of culling efforts by various individuals and organizations. Nevertheless, little is known about the historical distribution of D. rotundus. Detailed occurrence data are critical for the accurate assessment of past and current distributions of D. rotundus as part of ecological, biogeographical, and epidemiological research. This article presents a dataset of D. rotundus historical occurrence reports, including >39,000 locality reports across the Americas to facilitate the development of spatiotemporal studies of the species.Fil: Van de Vuurst, Paige. Virginia Polytechnic Institute And State University; Estados UnidosFil: Díaz, María Mónica. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Programa de Investigación de Biodiversidad Argentina; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaFil: Rodríguez San Pedro, Annia. Universidad Santo Tomás (ust);Fil: Allendes, Juan Luis. No especifíca;Fil: Brown, Natalie. Virginia Polytechnic Institute And State University; Estados UnidosFil: Gutiérrez, Juan David. Universidad Industrial Santander; ColombiaFil: Zarza, Heliot. Universidad Autónoma Metropolitana; MéxicoFil: de Oliveira, Stefan V.. Universidade Federal de Uberlandia; BrasilFil: Cárdenas Canales, Elsa. University of Wisconsin; Estados UnidosFil: Barquez, Ruben Marcos. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo. Programa de Investigación de Biodiversidad Argentina; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán; ArgentinaFil: Escobar, Luis E.. No especifíca

Factores asociados al decomiso de hígados positivos a Fasciola sp en una zona endémica del sureste de México

El objetivo fue determinar la frecuencia por decomiso de hígados con daños atribuidos a la presencia de Fasciola sp y los factores de riesgo asociados. Se realizó un estudio prospectivo observacional en el que se efectuaron visitas diarias durante un periodo de 12 meses, a un rastro municipal en la zona Sierra del estado de Tabasco. El 25.8 % de los hígados fueron positivos a la presencia del parásito, siendo el decomiso por sexo igual para machos y hembras (X2 = 0.011, gl= 1, P<0.05). La mayor proporción de decomiso, se concentró en la época de lluvias (9.36 %). Se concluye que la prevalencia de la fasciolosis en la zona de Jalapa no ha disminuido en los últimos años y está relacionada con el origen del animal. La fasciolosis es una enfermedad que debe ser monitoreada para detectar los factores que permiten su permanencia en una región geográfica, con el fin de poder establecer y plantear medidas estratégicas de control y de prevención adaptadas a las condiciones particulares de las zonas endémicas.