DRAFTING…<\/p>\n
In the NatureServe Ecosystem Classification applied to both the U.S. and Canada, the term \u201cPine Barrens\u201d is variously applied at 4 ecosystems levels, levels 5, 6, 7, 8)<\/p>\n
1. Class… 2. Subclass… 3. Formation… 4. Division… 5, Macrogroup…\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a06, Group… 7. Alliance… 8. Association<\/p>\n
Two Macrogroup\/four Group Records …5. Macrogroup*:\u00a0 Southern-Central Appalachian Dry Forest & Woodland (Macrogroup M502) – Central Appalachian-Northeast Pine – Oak Rocky Woodland (G906)<\/a><\/strong> …5. Macrogroup*:\u00a0North Atlantic Coastal Forest & Woodland (Macrogroup M525) – Laurentian Pine Barrens (G160)<\/strong><\/a> <\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" DRAFTING… In the NatureServe Ecosystem Classification applied to both the U.S. and Canada, the term \u201cPine Barrens\u201d is variously applied at 4 ecosystems levels, levels 5, 6, 7, 8) 1. Class… 2. Subclass… 3. Formation… 4. Division… 5, Macrogroup…\u00a0 \u00a0 … Continue reading
\ninclude \u201cPine Barrens\u201d\u00a0<\/strong><\/p>\n
\n6. Groups (2)*
\n– \u00a0Southern Appalachian Pitch Pine – Shortleaf Pine Woodland (G905)<\/strong><\/a>
\nPinus rigida – Pinus echinata<\/em> Woodland & Barrens Group
\n(Pitch Pine – Shortleaf Pine Woodland & Barrens Group<\/strong>)
\nNatureServe Status (Rounded): G4: Apparently Secure
\nConcept Sentence: This vegetation encompasses predominantly conifer woodlands and forests dominated by Pinus pungens, often with Pinus rigida and\/or Pinus virginiana, and occasionally Tsuga caroliniana, occupying very exposed, convex, rocky south- and west-facing slopes and related habitats in the Central Appalachians, Southern Ridge and Valley, and Southern Blue Ridge.<\/p>\n
\nPinus rigida – Pinus virginiana – Quercus ilicifolia <\/em>Woodland & Barrens Group
\n(Pitch Pine – Virginia Pine – Bear Oak Woodland & Barrens Group<\/strong>)
\nNatureServe Status (Rounded): G3:<\/strong> Vulnerable<\/strong>
\nConcept Sentence: This type encompasses predominantly pine-oak woodlands and forests in the Central Appalachians and Northeastern United States, extending to New York and lower New England. Stands are dominated by Pinus rigida and\/or Pinus virginiana, with Quercus montana and other dry hardwoods and a heath or grassy understory, often with Quercus ilicifolia. Stands occur on very exposed, convex, rocky south- and west-facing slopes and related habitats, including distinctive shale barrens of low to mid elevations.<\/p>\n
\n6. Groups*(2)
\n– Northeast Pitch Pine Barrens (G161)<\/strong><\/a>
\nPinus rigida \/ Quercus ilicifolia – Gaylussacia baccata<\/em> Barrens Group
\n(Pitch Pine \/ Bear Oak – Black Huckleberry Barrens Group<\/strong>)
\nNatureServe Status (Rounded): G2: Imperiled<\/strong>
\nConcept Sentence: “This pitch pine barrens group, occurring from New Jersey to Massachusetts, is characterized by Pinus rigida<\/em> on dry, nutrient-poor sites that are influenced by periodic fire.”<\/p>\n
\n[Laurentian Dry Forest & Woodland (Macrogroup M159)]
\nPinus banksiana – Quercus ellipsoidalis Barrens Group
\n(Jack Pine – Northern Pin Oak Barrens Group<\/strong>)
\nNatureServe Status (Rounded): G2: Imperiled<\/strong>
\nConcept Sentence: These barrens occur within the western and northern Great Lakes regions and are characterized by open canopies typically dominated by Pinus banksiana with a graminoid understory, but Pinus strobus, Pinus resinosa, and Quercus ellipsoidalis also may occur as common overstory dominants. Sites occur on flat or gently glaciated landscapes such as outwash plains, glacial lakeplains, and sandy river terraces.<\/p>\n