Yellowstone National Park’s 2013 “Natural Resource Vital Signs” report and annual wolf and bird project reports are now complete and will assist park managers and scientists more fully understand the status of important indicators of resource condition. Park Spokesperson Amy Bartlett says in that report, park scientists and their cooperators compiled data from more than two dozen indicators to study the influences, both inside and outside of the park, that affect Yellowstone’s overall ecological status and cultural resources. She says the report includes such things as climate, the grizzly bear population and the health of it, wolves and elk and their relations, bison. She adds that this year, the report included structures and archeological sites for the first time. She says there is also information about native fish populations. Bartlett says ecological indicators include ecosystem processes such as wildland fire, as well as the status of native species stressors, such as wildlife disease and non-native species. In additional to its natural resources, Bartlett says the National Park Service steward and continue to use an incredible collection of over 800 historical structures that help tell the story of transportation, lodging, and park management.