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Forestry

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The Wildlife Trusts. Geology. Insects. Birds. Trees. Dendrology. Tree Info. General Tree Bio and ID. Forest harvest systems. Silviculture. Silviculture practices. Silvi systems. Tree of Life Web Project. The Tree of Life Web Project (ToL) is a collaborative effort of biologists and nature enthusiasts from around the world.

Tree of Life Web Project

On more than 10,000 World Wide Web pages, the project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history (phylogeny). Each page contains information about a particular group, e.g., salamanders, segmented worms, phlox flowers, tyrannosaurs, euglenids, Heliconius butterflies, club fungi, or the vampire squid.

Natural History. My Minnesota Woods » How forests grow. Forests are dynamic ecosystems—they’re always growing and changing.

My Minnesota Woods » How forests grow

Patterns of forest succession are relatively predictable within given site conditions, but highly variable from site to site. For instance, in the sub-boreal forests of northeastern Minnesota, widespread aspen and birch forests are being invaded by native spruce and fir trees.