scholarly journals PANSTEATITIS OF UNKNOWN ETIOLOGY ASSOCIATED WITH LARGE-SCALE NILE CROCODILE (CROCODYLUS NILOTICUS) MORTALITY IN KRUGER NATIONAL PARK, SOUTH AFRICA: PATHOLOGIC FINDINGS

2013 ◽  
Vol 44 (4) ◽  
pp. 899-910 ◽  
Author(s):  
Emily P. Lane ◽  
Fritz W. Huchzermeyer ◽  
Danny Govender ◽  
Roy G. Bengis ◽  
Peter E. Buss ◽  
...  
2017 ◽  
Author(s):  
Sadie J. Ryan ◽  
Joshua Ladau

AbstractWe examined hypotheses of spatial association arising from direct or indirect competitive interactions, using thirteen years of gridded mammal census data from Kruger National Park, South Africa. As interactions occur at different scales, we explored the data at 1, 5, 10, and 15 km2. We proposed four hypotheses structuring the mammal community: H1. direct competition between carnivores and herbivores; H2-4: indirect competition produced by each of three types of herbivore diet specialization: H2. ruminants and non-ruminants, H3. grazers and browsers, and H4. a four-way division of small and large grazers and browsers. We used the software CoOccur to implement a robus test for evidence of our hypotheses against null models of community assemblage. At 5, 10, and 15km2 scales, the results supported a competition mechanism in the majority of years for hypotheses H1, H3, and H4, and facilitation in H2. At the finest spatial scale (1km2), we saw evidence for a mixture of competitive, neutral and facilitative process. These results suggest strong, large-scale effects of interspecific interactions on distributions of African megafauna, which may not operate at a more local (1km2) scale, underscoring the importance of scale and mechanism in the guild structure of communities.


2018 ◽  
Vol 148 ◽  
pp. 930-941 ◽  
Author(s):  
Marinus du Preez ◽  
Danny Govender ◽  
Henrik Kylin ◽  
Hindrik Bouwman

1996 ◽  
Vol 101 (D19) ◽  
pp. 23541-23550 ◽  
Author(s):  
B. J. Stocks ◽  
B. W. van Wilgen ◽  
W. S. W. Trollope ◽  
D. J. McRae ◽  
J. A. Mason ◽  
...  

2014 ◽  
Vol 104 ◽  
pp. 393-402 ◽  
Author(s):  
Hindrik Bouwman ◽  
Paul Booyens ◽  
Danny Govender ◽  
Danie Pienaar ◽  
Anuschka Polder

PLoS ONE ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. e0191704 ◽  
Author(s):  
Pieter Johan Steenkamp ◽  
Henriette van Heerden ◽  
Ockert Louis van Schalkwyk

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