ENVIRONMENTAL BIOLOGY

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ECOLOGICAL SUCCESSION OF VEGETATION STAGE: DRY-LAND SUCCESSION : OPEN WATER OR SATURATED SOIL ------------------------------------------------------------------- : : Open water or saturated soil 1. : Rock, lava, bare soil : (new ponds, islands, reservoirs) -----:---------------------------:--------------------------------- : : 2. : Lichens, Cyanobacteria : Submerged vegetation -----:---------------------------:-------------------------------- : : Floating vegetation 3. : : (Water lilies, duckweed) -----:---------------------------:--------------------------------- : : Emergent vegetation 4. : Mosses, annual grasses : (Cattails, Bulrushes, Arrowweed) -----:---------------------------:--------------------------------- : Grasses : Mixed grasses 5. : Goldenrods, Asters : Sedges (triangular stems) -----:---------------------------:--------------------------------- : Mixed herbaceous: : Mixed herbaceous: 6. : all of the types above + : all of the types above + : Queen Anne's lace, Dew- : Joe Pye weed, Boneset, and : berry, Cinquefoil : other large perennials -----:---------------------------:--------------------------------- : Shrub stage: : Shrub stage: 7. : Hawthorne, Carolina rose,: Elderberry, Red-stem Dogwood, : Staghorn sumac, Dogwood : Willows, Alder -----:---------------------------:--------------------------------- : INTOLERANT trees: : INTOLERANT trees: 8. : Cherry, Aspen (Poplar), : Aspen (Poplar), Willow, Elm, : White Pine, Jack Pine, : Ash, White Pine : Grey Birch : -----:---------------------------:--------------------------------- : MEDIUM TOLERANT trees: : MEDIUM TOLERANT trees: 9. : Elm, Oak, White Pine, : Elm, Hickory, White Ash, Yellow : Yellow Birch : Birch, White Pine, Red Maple -----:---------------------------:--------------------------------- : TOLERANT trees: Basswood,: TOLERANT trees: Basswood, 10. : Hemlock, Yellow Birch, : Hemlock, Yellow Birch, : Sugar Maple, Beech : Sugar Maple, Beech ------------------------------------------------------------------- Vegetation typical of the northeastern United States.