USGS: Biology arrow iconStatus & Trends Home arrow iconEcosystems arrow iconForest+Mammals
Have a suggestion for new material?


Effects of Management and Climate on Elk Brucellosis in the Greater Yellowstone Ecosystem

Every winter, government agencies feed ;6000 metric tons (63 106 kg) of hay to elk in the southern Greater Yellowstone Ecosystem (GYE) to limit transmission of Brucella abortus, the causative agent of brucellosis, from elk to cattle. Supplemental feeding, however, is likely to increase the transmission of brucellosis in elk, and may be affected by More...

  • blank image

National Resources Monitoring Partnership (NRMP)

Natural resource managers face complex decisions that require a clear understanding of the status of wildlife populations and their habitats. Monitoring is key to making effective management decisions and evaluating the outcomes of those decisions. The goal of NRMP is to improve the accessibility of monitoring efforts to resource managers to aid More...

  • blank image

National Resources Monitoring Partnership (NRMP) Newsletter

Natural Resource Monitoring Partnership (NRMP) is a collaborative effort by the natural resource management community to improve monitoring efforts in order to support effective evaluation and decision-making by sharing information on monitoring projects and protocols. The Natural Resource Monitoring Partnership was built for easy access to More...

  • blank image

A double-observer method for reducing bias in faecal pellet surveys of forest ungulates

Dense vegetation, rough terrain, and other variables may make it difficult to monitor forest-dwelling mammals. When direct counting is not practical, researchers in forested regions often rely on surveys of scat (animal waste) to study the abundance and distribution of the large animals. Biases, such as using different observers, may limit the More...

  • blank image