Get An African Savanna: Synthesis of the Nylsvley Study PDF

By R. J. Scholes

ISBN-10: 051156547X

ISBN-13: 9780511565472

ISBN-10: 0521419719

ISBN-13: 9780521419710

ISBN-10: 0521612101

ISBN-13: 9780521612104

Savannas hide nearly half the African land floor and one 5th of the land floor of the area. they're some of the most vital, yet least understood terrestrial ecosystems. they're the root of the African farm animals and the flora and fauna they aid is of key significance in bringing in travelers. The Nylsvley sector in South Africa is without doubt one of the so much intensively studied savanna areas on the planet and as such it's a key resource of knowledge and thought in relation to this crucial tropical biome. The South African Savanna Biome Programme was once arrange to improve the certainty essential to expect adjustments within the environment balance brought about by means of either average and man-made stresses. This e-book offers a synthesis of the programme's 16 years of study at Nylsvley and goals to increase a unified imaginative and prescient of the ecology of the dry savanna.

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Extra resources for An African Savanna: Synthesis of the Nylsvley Study

Sample text

Melaenornis pallidus Melaenornis mariquensis 1 Broad-leafed savanna I! Fine-leafed savanna # -I a W 2 >. i« is t S2 ^ | 8 ! O J I! (0 Q A(D ! H £ c lv MS 4J ^ (D OS •H irl H (DIM •H fj 03 11 111 Us! 2 (Q •rl (I) (0 E(0 c •H (0 CD (1) )J3 d) •rl u -0 p (0 •rl •rl rl 0 •nl DN (1) ' , :: ro 0} (1) 1 tf0 H (0 hi- •H ll)' Hc «' d (0 (0 «i c E. ho )H 2 (0> ID • I. HX Q(D •(D C3 flfl ^0 3 •H -H ! HOJU! MO H 03 52 The Nylsvley biota terms, this means that less than half the species are different between the most extreme plots.

Large areas of the erosion surface formed at that time, called the African surface, are still present. Much of the African surface is underlain by Archean granites of the African shield, a large block of the 34 Geology, landform and soils 35 original crust. This forms the core of the African savannas, with an altitude above 1000 m and annual rainfall in excess of 1000 mm. The soils are deep, infertile, and dominated by 'low activity' clays such as kaolinites and aluminium oxides. These are ferrallitic and ferruginous soils: Oxisols and Ultisols in the USD A Soil Taxonomy nomenclature (Soil Survey Staff 1975); Ferralsols, Acrisols and Nitosols following the FAO classification (FAO/ Unesco 1974).

Coetzee et al. (1976) list 319 species in this community (from an area of about 600 ha), so impoverishment must be a relative term. 1 ha: Whittaker et al. 1984), and matches the alpha-diversity of many Cape fynbos plots (Naveh & Whittaker 1979). The most conspicuous and consistent tree species, Burkea africana, has a distribution which includes southern, Central, East and West Africa. Most of the plant and resident bird species are found within the moist, nutrient-poor savanna regions of 'High Africa' {sensu White 1980), or are closely related to species found there.

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An African Savanna: Synthesis of the Nylsvley Study by R. J. Scholes


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