Introduction: The gray fox (Urocyon cinereoargenteus) is distributed throughout Mexico, and yet there is little information about its life history and behavioral ecology. Basic knowledge about losses in distribution, preferred habitat features, and home range size are badly needed. This study describes the use of habitat and home range size of gray fox inhabiting the temperate...
Introduction: Conservation of biodiversity requires an accurate accounting of the entities (taxa) comprising that diversity, the species. In an ideal system, each entity would have a unique and unequivocal name that would integrate information from other disciplines within a universal concept to ease the communication. In spite of being a comparatively well-known group, the...
Introduction: Genetic data hypothetically place the origin of the most recent common ancestor of the subfamily Emballonurinae in Africa, suggesting a dispersal event from Africa to South America during the Oligocene (30 Ma), and a subsequent allopatric radiation in the New World. Emballonurid genera exist in Central America where, to date, only one event of diversification has...
Introduction: Local participation, be it passive or active, has had variable degrees of success in long-term conservation processes. We describe an alliance in the Bolivian Gran Chaco between indigenous people- seeking land and resource rights, and improved livelihoods-and a conservation organization-pursuing biodiversity and wildlife conservation-that successfully proposed, and...
Introduction: The last 500 years of the historical era, an interval that corresponds to the concerted dispersal of European explorers, traders, and colonists around the globe, has witnessed the global disappearance of ~90 mammal species. Besides the known cases of biological extinctions, this time period was also characterized by the regional extirpations of specialized taxa and...
The most universal adaptations of tropical frugivores to the seasonal rhythms of fruiting involve their annual breeding cycles. In bats, these cycles typically follow a pattern termed bimodal polyestry, consisting in the production of one offspring per female twice during the breeding season. We use data gathered along 29 years to show that, in cloud forests in the Venezuelan...
Introduction: Deforestation is one of the primary causes of species decline worldwide. Some species, however, can take advantage of change and expand their distribution, putting endemic species in danger of extinction, changing the composition of biotic communities, and altering ecosystems. Methods: From June 2005 to July 2007, using radiotelemetry collars and implants we...