BACKGROUND New kinds of knowledge, usage patterns and management strategies of natural resources emerge in local communities as a way of coping with uncertainty in a changing world. Studying how human groups adapt and create new livelihoods strategies are important research topics for creating policies in natural resources management. Here, we study the adoption and development of lagartos (Cro...

Viral diagnosis and discovery are receiving increasing emphasis with the recognition of their importance in addressing the challenges of emerging infectious and chronic diseases, and the advent of antiviral drugs with which to reduce the morbidity and mortality of viral infections. Here we review the status of the field including the use of molecular, proteomic and immunological assays for vira...

PREFACE The process of setting waterfowl hunting regulations is conducted annually in the United States (Blohm 1989). This process involves a number of meetings where the status of waterfowl is reviewed by the agencies responsible for setting hunting regulations. In addition, the U.S. Fish and Wildlife Service (USFWS) publishes proposed regulations in the Federal Register to allow public commen...

Bounty hunting has been shown to solve the multiagent task allocation problem robustly in noisy and dynamic scenarios with multiple other agents of unknown quality. This bounty hunting model does not require task exclusivity, but does require task commitment. We examine eliminating this second requirement, thus allowing bounty hunters to commit to tasks but abandon them later (to jump ship) for...

Private aerial hunting of predators for protection of livestock began before 1925 in the western United States. Apparently, it was first used in professional control programs in 1942. Inclement weather, dense vegetation and rough terrain are l i m i t i n g factors and helicopters are more versatile than fixed-wing aircraft. When it can be employed, aerial hunting is unsurpassed as an immediate...

Harvest can affect the ecology and evolution of wild species. The removal of key individuals, such as matriarchs or dominant males, can disrupt social structure and exacerbate the impact of hunting on population growth. We do not know, however, how and when the spatiotemporal reorganization takes place after removal and if such changes can be the mechanism that explain a decrease in population ...

Hunting affects a considerably greater area of the tropical forest biome than deforestation and logging combined. Often even large remote protected areas are depleted of a substantial proportion of their vertebrate fauna. However, understanding of the long-term ecological consequences of defaunation in tropical forests remains poor. Using tree census data from a large-scale plot monitored over ...

While caribou hunting structures are well known in the circumpolar region, equivalent features are difficult to investigate further south due to significant changes in sea level and subsequent human activity. The discovery of hunting structures on submerged landforms beneath modern Lake Huron provides a new window into caribou hunting in the mid-latitudes. This paper summarizes current findings...

Hunting activities can affect game species in several ways; however, indirect effects of hunting on non-game species have received less attention than direct effects on game species, even though such potential effects could be crucial in some situations. There is ongoing concern that the critically endangered Florida panther Puma concolor coryi may be influenced by hunting activity, in terms of...

Previous studies suggested a role for the rostral lateral periaqueductal gray (PAG) in the inhibition of maternal behavior induced by low doses of morphine in dams with previous morphine experience. In the present study, we first showed that unilateral NMDA lesions placed in this particular PAG region prevented the morphine-induced inhibition of maternal behavior in previously morphine-sensitiz...