Starting in the 1940s, several species of pine (Pinus spp.) and other conifers were planted in the northeast section of the Lower Arb. None of the trees planted are native to the area (though they are native to Minnesota). In keeping with the overall goal of restoring native communities in the Arb, no new conifer plantations are planned. Smaller stands of pines have been removed from areas near prairies and oak savannas, where they would be vulnerable to management burns. Most of our other conifers will be removed over time and replaced with native trees that better support our native animals.