The COVID-19 pandemic resulted in extraordinary declines in human mobility, which, in turn, may affect wildlife. Using records of more than 4.3 million birds observed by volunteers from March to May 2017-2020 across Canada and the United States, we found that counts of 66 (80%) of 82 focal bird species changed in pandemic-altered areas, usually increasing in comparison to prepandemic abundances in urban habitat, near major roads and airports, and in counties where lockdowns were more pronounced or occurred at the same time as peak bird migration. Our results indicate that human activity affects many of North America's birds and suggest that we could make urban spaces more attractive to birds by reducing traffic and mitigating the disturbance from human transportation after we emerge from the pandemic.
Se identifi caron 85 especies totales, de las cuales 24 especies son endémicas de México, 14 especies se encuentran en alguna categoría de riesgo de acuerdo con la NOM-059 (SEMARNAT, 2010) y 3especies en la lista roja de la UICN. Aun cuando la zona de estudio representa apenas el 0.42% de la superfi cie total del PNNT, la riqueza de vertebrados encontrada constituye el 11.37% de la riqueza total en el Estado de México, lo cual destaca la importancia de este espacio y una urgente necesidad de establecer estrategias de manejo que garanticen la conservación de las especies y su hábitat.Palabras clave: riqueza de especies, bosques reforestados, Área Natural Protegida, Estado de México, conservación y manejo.
Dogs (Canis lupus familiaris) are an invasive alien species that can negatively impact natural ecosystems due to the potential of predation, competition, or disease transmission. Nonetheless, few studies assess the ecological impacts of these species on protected areas. Our objective was to determine the diet of free-ranging dogs, through scat analysis within the Nevado de Toluca Flora and Fauna Protection Area, Estado de México, Mexico. A total of 130 scat samples from dogs were collected with the help of a bloodhound. Prey items identified in the scats were classified into 6 food categories: wild mammals, birds, insects, livestock, vegetative matter and human-derived food. Wild mammals were the most frequent category (FO = 62.3%; RO = 40.3%). We present the first evidence of 8 rodents, 1 shrew, and 2 skunk species as part of the diet of free-ranging dogs. Some identified preys are species endemic to Mexico with special protection status according to Mexican law. We recommend following the global-level policies aimed at reducing the population of dogs in Protected Areas.
ResumenInformamos de los primeros registros de la cotorra argentina (Myiopsitta monachus) en varias localidades de los municipios de Toluca y Metepec, dentro del Valle de Toluca en el Estado de México, México, a una altura de 2,617 a 2,764 msnm. Registramos nidos activos en izotes (Yucca spp.) y una colonia de 40 individuos alimentándose en árboles frutales. Debido a que ésta es una especie exótica e invasora recomendamos iniciar programas de monitoreo poblacional para determinar las causas de su establecimiento en estas zonas, así como para determinar posibles efectos en los ecosistemas de la región.Palabras clave: Valle de Toluca, Metepec, psitácidos.
Highest altitudinal record of the Monk Parakeet (Myiopsitta monachus) in Mexico AbstractWe report the first record of the Monk Parakeet (Myiopsitta monachus) in several localities of the municipalities of Toluca and Metepec, in the Toluca Valley, State of Mexico, Mexico; at altitudes ranging from 2,617 to 2,764 masl. We found active nests in Yucca trees (Yucca spp.) and a colony of up to 40 individuals feeding on fruit trees. Given its status as exotic and invasive species, we recommend starting monitoring programmes to know the causes of its establishment in this area and the possible negative effects on the ecosystems of the region.
El turismo de naturaleza en Áreas Protegidas de México se considera desde finales del siglo XX como un instrumento de desarrollo socioeconómico. Puesto que esta estrategia es relativamente novedosa para Latinoamérica, su implantación exige de un tratamiento especial y cuidadoso para cada una de las partes del sistema turístico. Se hace necesario asumir los principios de conservación y aprovechamiento sostenible. Se analiza en este caso el Parque Ecológico Ejidal de Cacalomacán, localizado dentro del Nevado de Toluca. Es una zona de interés para la conservación de la biodiversidad, en donde el turismo de naturaleza se ha convertido en una herramienta de desarrollo comunitario. La metodología empleada ha sido el Sistema Ponderado de Inventario y Evaluación de Recursos.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.