caa a22 4500 388051655 CHVBK 20180307125055.0 cr unu---uuuuu 161130e199803 xx s 000 0 eng 10.1017/S0959270900003658 doi S0959270900003658 pii (NATIONALLICENCE)cambridge-10.1017/S0959270900003658 Geographical analysis of vegetation structure and sightings for four large bird species in the Kruger National Park, South Africa [Elektronische Daten] The extensive spatial organization of many large-bird populations is difficult to assess. We used a geographic information system to correlate vegetation structure with random sightings for four large bird species that occur throughout the 20,000 km2 Kruger National Park (KNP), South Africa. Vegetation structure was assessed visually during 1991-1992 for the 1093 2-5′-quadrats that cover the KNP. Sightings were made during 1991-1994 of Kori Bustard Ardeotis kori, Martial Eagle Polemaetus bellicosus, Lappet-faced Vulture Torgos tracheliotus and Southern Ground Hornbill Bucorvus leadbeateri, and their nest sites. As control, comparative data on ground hornbills were also available from annual aerial censuses during 1982-1994, and from records of nest sites during 1966-1996. Each species had its highest positive correlation with a different set of vegetation categories, ranging in value from the hornbill (1.13) and vulture (1.15) up to the eagle (1.32) and bustard (1.49). Nest sites had higher correlations (hornbill 1.65, vulture 2.85) than records of free-living birds. The same vegetation categories that had the highest correlations with random sightings of ground hornbills and their nests also had the highest correlations with the more extensive and systematic data from aerial census and long-term nest records. Our method of correlating vegetation structure with random data is predictive, testable and has application to the conservation management of other sparsely distributed species. Copyright © Birdlife International 1998 Kemp A. C. Department of Birds, Transvaal Museum, P. O. Box 413, Pretoria, 0001 South Africa Benn G. W. FitzPatrick Institute, University of Cape Town, Rondebosch, 7700 South Africa. Begg K. S. FitzPatrick Institute, University of Cape Town, Rondebosch, 7700 South Africa. Bird Conservation International Cambridge University Press 8/1(1998-03), 89-108 0959-2709 8:1<89 1998 8 BCI https://doi.org/10.1017/S0959270900003658 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0959270900003658 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kemp A. C. Department of Birds, Transvaal Museum, P. O. Box 413, Pretoria, 0001 South Africa NATIONALLICENCE 700 1- Benn G. W. FitzPatrick Institute, University of Cape Town, Rondebosch, 7700 South Africa NATIONALLICENCE 700 1- Begg K. S. FitzPatrick Institute, University of Cape Town, Rondebosch, 7700 South Africa NATIONALLICENCE 773 0- Bird Conservation International Cambridge University Press 8/1(1998-03), 89-108 0959-2709 8:1<89 1998 8 BCI CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge