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Browsing by Author "Frost, PGH"

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Canopy structure in savannas along a moisture gradient on Kalahari sands

Author: Scholes, RJ ; Frost, PGH ; Tian, Y Date: Mar 2004 Measurements of tree canopy architecture were made at six savanna sites on deep, sandy soils, along a gradient of increasing aridity. There was substantial variation in the leaf area estimated within each site, using the same sample frame, ... Read more
Determinants of woody cover in African savannas

Author: Sankaran, M ; Hanan, NP ; Scholes, RJ ; Ratnam, J ; Augustine, DJ ; Cade, BS ; Gignoux, J ; Higgins, SI ; Le Roux, X ; Ludwig, F ; Ardo, J ; Banyikwa, F ; Bronn, A ; Bucini, G ; Caylor, KK ; Coughenour, MB ; Diouf, A ; Ekaya, W ; Feral, CJ ; February, EC ; Frost, PGH ; Hiernaux, P ; Hrabar, H ; Metzger, KL ; Prins, HHT ; Ringrose, S ; Sea, W ; Tews, J ; Worden, J ; Zambatis, N Date: 08 Dec 2005 Savannas are globally important ecosystems of great significance to human economies. In these biomes, which are characterized by the co-dominance of trees and grasses, woody cover is a chief determinant of ecosystem properties (1-3). The ... Read more
The regional landscape: Nylsvley in perspective

Author: Frost, PGH Date: 1987 This report deals with the South African Savanna Ecosystem Project study site at the Nylsvley Provincial Nature Reserve, northern Transvaal. In particular, a description of the environmental features and ecological processes active in the ... Read more
South African red data book - Aves

Author: Siegfried, WR ; Frost, PGH ; Cooper, J ; Kemp, AC Date: Jun 1976 Data sheets are provided on 101 South African bird species thought to be eligible for conservation attention. A list is also provided of 35 species which might qualify for inclusion in a revised South African Red Data Book. Read more
Southern Africa Fire Network (SAFNet) regional burned-area product-validation protocol

Author: Roy, DP ; Frost, PGH ; Justice, CO ; Landmann, T ; Le Roux, JL ; Gumbo, K ; Makungwa, S ; Dunham, K ; Du Toit, R ; Mhwandagara, K ; Zacarias, A ; Tacheba, B ; Dube, OP ; Pereira, JMC ; Mushove, P ; Morisette, JT ; Vannan, SKS ; Davies, D Date: 10 Oct 2005 The development of appropriate validation techniques is critical to assess uncertainties associated with satellite-data-based products, to identify needed product improvements and to allow products to be used appropriately. At regional to ... Read more
Trends in savanna structure and composition along an aridity gradient in the Kalahari

Author: Scholes, RJ ; Dowty, PR ; Caylor, K ; Parsons, DAB ; Frost, PGH ; Shugart, HH Date: Jun 2002 The Kalahari sand sheet occupies 2.5 million ha in southern Africa. It is an area with relatively similar deep Aeolian soils, and a strong south to north gradient in rainfall, from 200 to 1000 mm mean annual precipitation (MAP) in the region ... Read more

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Browsing by Author "Frost, PGH"

Browsing by Author "Frost, PGH"

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