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areas outside of the parks /city. Connections between communities along natural <br />corridors can help to maintain diversity and health by allowing plants and animals to <br />migrate between larger natural areas. <br />• People are part of nature. The decisions and actions of humans have been a major <br />force shaping the natural resources of Roseville for millennia. Humans and their <br />values will continue to be an important component in shaping the future of natural <br />areas. Restoring natural communities in city parks will continue to involve planning <br />for a balance of integration between urban land uses and maintaining or improving <br />nearby natural areas. <br />• Species are interdependent, and our knowledge of all the interactions within <br />natural communities is limited. Restoring natural communities is a relatively <br />young field in science, and new information will continue to come to the fore. <br />Adaptive Management in the restoration of natural communities requires keeping <br />abreast of the most up -to -date information and integrating it with current practices. <br />• Introductions of nonnative plants should be limited Certain nonnative species are <br />known to be invasive and reduce native diversity, the quality of habitat. When new <br />landscaping is created, any nonnative plant materials proposed for use should be <br />reviewed to prevent the unintentional introduction of a plant species that will need to <br />be controlled in adjoining natural areas in the future. <br />• Restoration of natural communities must consider long time frames. Because <br />natural communities are complex systems that can take years or decades to <br />substantially respond to resource management, patience and a long -term commitment <br />is required. For example, the positive effects of appropriate management in some <br />degraded forests may take one to several tree generations to be realized. In the case <br />the initial goal may not be reached for over 100 years. Conversely, some natural <br />communities respond quickly to management and may significantly improve in a <br />matter of years, or decades. <br />City of Roseville 6 <br />Parks Natural Resource Management <br />