Temperate deciduous forest

Temperate deciduous or temperate broad-leaf forests are a variety of temperate forest 'dominated' by trees that lose their leaves each year. They are found in areas with warm moist summers and cool winters. The six major areas of this forest type occur in the Northern Hemisphere: North America, East Asia, Central and Western Europe (except Brittany, Cornwall, Wales, Ireland and western Scotland), Denmark , southern Sweden and southern Norway . Smaller areas , occur in Australasia and southern South America. Examples of typical trees in the Northern Hemisphere's deciduous forests include oak, maple, beech and elm, while in the Southern Hemisphere, trees of the genus Nothofagus dominate this type of forest.

## Contents

* 1 Human effects
* 2 Gallery
* 3 See also
* 4 References
* 5 External links

## Human effects

Humans have often colonized areas in the temperate deciduous forest. They have harvested wood for timber and charcoal.[1] During the settlement of North America, potash made from tree ashes was exported back to Europe as fertilizer. This left less than one-quarter of original forests to remain. Many forests are now small fragments dissected by fields and roads; these islands of green often differ substantially from the original forests, particularly along the edges.[2][3] The introduction of exotic diseases continues to be a threat to forest trees, and hence, the forest;[4] examples include the loss of chestnut and elm. At the same time, species such as deer, which are clearing rather than true forest animals, have expanded their range and proliferated in these altered landscapes.[5] Large deer populations have deleterious effects on tree regeneration overall, but particularly for edible species including yew, yellow birch, and hemlock. Deer grazing also has significant negative effects on the number and kind of herbaceous flowering plants.[6] The continuing pressure to increase deer populations, and the continued killing of top carnivores, suggests that overgrazing by deer will continue to be a significant forest conservation problem. Objective criteria for the restoration of deciduous forest include large trees, coarse woody debris, spring ephemeral, and top predators.[7]

## Gallery

* Forests maintain water flow in streams.

* A mature elm tree

* Young deciduous forest

* Nothofagus antarctica in summer

## See also

* Temperate coniferous forest
* Temperate broadleaf and mixed forest
* International Year of Forests
* Old-growth forest
* Tropical evergreen forest
* Tropical deciduous forest

## References

1. ↑ Hughes, J. D. 1982. Deforestation, erosion, and forest management in ancient Greece and Rome. Journal of Forest History 26: 60–75.
2. ↑ Wilcove, D. S., C. H. McLellan, and A. P. Dobson. 1986. Habitat fragmentation in the temperate zone. pp. 237–256. In M. E. Soul´e (ed.) Conservation B; the Science of Scarcity and Diversity. Sunderland: Sinauer Associates.
3. ↑ Harris, L. D. 1984. The Fragmented Forest: Island Biogeography Theory and the Preservation of Biotic Diversity. Chicago: University of Chicago Press.
4. ↑ Little, C. E. 1995. The Dying of the Trees: The Pandemic in America’s Forests. New York: Penguin Books.
5. ↑ Latham, R. E., J. Beyea, M. Benner, C.A. Dunn, M. A. Fajvan, R.R. Freed, M. Grund, S. B. Horsley, A. F. Rhoads, and B. P. Shissler. 2005. Managing White-tailed Deer in Forest Habitat from an Ecosystem Perspective: Pennsylvania Case Study. Harrisburg: Audubon Pennsylvania and Pennsylvania Habitat Alliance.
6. ↑ Latham, R. E., J. Beyea, M. Benner, C.A. Dunn, M. A. Fajvan, R.R. Freed, M. Grund, S. B. Horsley, A. F. Rhoads, and B. P. Shissler. 2005. Managing White-tailed Deer in Forest Habitat from an Ecosystem Perspective: Pennsylvania Case Study. Harrisburg: Audubon Pennsylvania and Pennsylvania Habitat Alliance.
7. ↑ Keddy, P.A. and C. G.Drummond. 1996. Ecological properties for the evaluation, management, and restoration of temperate deciduous forest ecosystems. Ecological Applications 6: 748–762.

## External links

* A map of biome distribution (Temperate Deciduous Forest is in dark green)

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* t
* e

Biogeographic regionalisations

Biomes|

| Terrestrial
biomes|

| Polar/montane|

* Tundra
* Taiga
* Montane grasslands and shrublands

|

Temperate|

* Coniferous forests
* Broadleaf and mixed forests
* Deciduous forests
* Grasslands, savannas, and shrublands

Tropical and
subtropical|

* Coniferous forests
* Moist broadleaf forests
* Dry broadleaf forests
* Grasslands, savannas, and shrublands

Dry|

* Mediterranean forests, woodlands, and scrub
* Deserts and xeric shrublands

Wet|

* Flooded grasslands and savannas
* Riparian
* Wetland
* Mangrove

Aquatic
biomes|

* Pond
* Littoral
* Intertidal
* Mangroves
* Kelp forests
* Coral reefs
* Neritic zone
* Pelagic zone
* Benthic zone
* Hydrothermal vents
* Cold seeps
* Demersal zone

Other biomes|

* Endolithic zone

Biogeographic
realms|

| Terrestrial|

* Afrotropical
* Antarctic
* Australasian
* Indomalayan
* Nearctic
* Neotropical
* Oceanian
* Palearctic

|

Marine|

* Arctic
* Tropical Atlantic
* Central Indo-Pacific
* Western Indo-Pacific
* Temperate Northern Pacific
* Tropical Eastern Pacific
* Southern Ocean

Subdivisions|

* Biogeographic provinces
* Bioregions
* Ecoregions
* Lists of ecoregions
* Global 200 ecoregions

See also|

* Ecological land classification
* Floristic kingdoms
* Vegetation classifications
* Zoogeographic regions

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