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This effect predicts that zonation of rain forests on lower mountains may mirror the zonation expected on high mountains, but the belts occur at lower elevations. [3] A similar effect is exhibited in the Santa Catalina Mountains of Arizona, where the basal elevation and the total elevation influence the elevation of vertical zones of vegetation ...
Montane vegetation belt, 900- 1,000 m to 1,600 m (northern slopes) and 1,300 to 1,800 m (southern slopes); forests of Pinus nigra ssp. laricio, Fagus sylvatica and Abies alba. Quercus ilex , Quercus pubescens , Pinus pinaster , Castanea sativa and Erica arborea not present anymore.
Belt transects are used in biology, more specifically in biostatistics, to estimate the distribution of organisms in relation to a certain area, such as the seashore or a meadow. [ 1 ] [ 2 ] The belt transect method is similar to the line transect method but gives information on abundance as well as presence, or absence of species.
GCSE Bitesize was launched in January 1998, covering seven subjects. For each subject, a one- or two-hour long TV programme would be broadcast overnight in the BBC Learning Zone block, and supporting material was available in books and on the BBC website. At the time, only around 9% of UK households had access to the internet at home.
The following is the list of the 286 plant communities which comprise the British National Vegetation Classification (NVC). These are grouped by major habitat category, as used in the five volumes of British Plant Communities, the standard work describing the NVC.
Tropics form a belt around the equator from latitude 3 degrees north to latitude 3 degrees south, which is called the Intertropical Convergence Zone. Tropical heat generates unstable air in this area, and air masses become extremely dry due to the loss of moisture during the process of tropical ascent. [1] Hadley cell above Sahara desert
The Sahel acacia savanna, a belt of drier grasslands, lies to the north, forming a transition zone between the Sudanian savanna and the Sahara Desert phytochorion. To the Sudan's south, the more humid forest-savanna mosaic forms a transition zone between the Sudanian savanna and the Guineo-Congolian forests that lie nearer the equator.
Tropical and subtropical grasslands, savannas, and shrublands occur on all continents but Antarctica. They are widespread in Africa, and are also found all throughout South Asia and Southeast Asia, the northern parts of South America and Australia, and the southern United States.