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Biodiversity and Conservation

, Volume 28, Issue 6, pp 1493–1511 | Cite as

Wildlife winners and losers of extensive small-livestock farming: a case study in the South African Karoo

  • Marine DrouillyEmail author
  • M. Justin O’Riain
Original Paper

Abstract

Extensive farming is an important source of food and fibre and often the only viable land use in the more arid regions of the globe. Yet, land use transformation for livestock grazing can lead to natural habitat degradation and fragmentation, identified as the main threats to biodiversity worldwide. Understanding which species are “winners” (i.e. species with a higher relative abundance index on farmland than protected area) and “losers” (i.e. species that have been extirpated or have a lower relative abundance index on farmland) in farming landscapes is crucial for the global sustainability of food production and biodiversity conservation. We used camera traps across 332 locations, over 23,796 trap nights to compare species richness and several aspects of community diversity (evenness, dominance, functional diversity and community structure) on 22 extensive small-livestock farms and a nearby protected area in the semi-arid region of the Karoo, South Africa. Species richness was not significantly different between the two land uses, but there were important differences in community structure and composition. Large carnivores were the “losers” of extensive livestock farming. Farmland displayed a lower effective number of species and functional diversity and a higher dominance than the protected area. The latter had a positive influence on the presence of large mammals and on the relative abundance of the region’s main mesopredator, the black-backed jackal (Canis mesomelas). Contrary to consensus, extensive small-livestock farming may be beneficial to some species and may therefore represent an important opportunity for biodiversity conservation outside of formally protected areas.

Keywords

Camera traps Diversity Karoo Predators Species richness Terrestrial vertebrate communities 

Notes

Acknowledgements

We thank the Karoo farmers and CapeNature for their participation and for allowing us access to their farms and to Anysberg Nature Reserve to set camera traps. We are also grateful to B. Conradie for introducing us to the farmer community, and to the South African Weather Service for providing the weather data for the town of Laingsburg. We thank the two anonymous reviewers who provided comments that greatly improved our manuscript. This work was supported by the WWF Nedbank Green Trust (grant number GT 2251), an NRF grant to M. J. O’Riain and a URC equipment grant from UCT to N. Nattrass and M. J. O’Riain.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

10531_2019_1738_MOESM1_ESM.docx (75 kb)
Supplementary material 1 (DOCX 75 kb)

References

  1. Ahumada JA, Silva CEF, Gajapersad K et al (2011) Community structure and diversity of tropical forest mammals: data from a global camera trap network. Philos Trans R Soc Lond B 366:2703–2711.  https://doi.org/10.1098/rstb.2011.0115 CrossRefGoogle Scholar
  2. Apps P (2012) Smithers mammals of Southern Africa, 4th edn. Random House Struik, Cape TownGoogle Scholar
  3. Balmford A, Green RE, Scharlemann JPW (2005) Sparing land for nature: exploring the potential impact of changes in agricultural yield on the area needed for crop production. Glob Chang Biol 11:1594–1605.  https://doi.org/10.1111/j.1365-2486.2005.001035.x CrossRefGoogle Scholar
  4. Barnard P, Brown CJ, Jarvis AM et al (1998) Extending the Namibian protected area network to safeguard hotspots of endemism and diversity. Biodivers Conserv 7:531–547.  https://doi.org/10.1023/A:1008831829574 CrossRefGoogle Scholar
  5. Berger WH, Parker FL (1970) Diversity of planktonic foraminifera in deep-sea sediments. Science 168:1345–1347.  https://doi.org/10.1126/science.168.3937.1345 CrossRefGoogle Scholar
  6. Blaum N, Rossmanith E, Popp A, Jeltsch F (2007) Shrub encroachment affects mammalian carnivore abundance and species richness in semiarid rangelands. Acta Oecologica 31:86–92.  https://doi.org/10.1016/j.actao.2006.10.004 CrossRefGoogle Scholar
  7. Boshoff A, Landman M, Kerley G (2016) Filling the gaps on the maps: historical distribution patterns of some larger mammals in part of southern Africa. Trans R Soc S Afr 71:23–87.  https://doi.org/10.1080/0035919X.2015.1084066 CrossRefGoogle Scholar
  8. Brand M, Schutte-Vlok A, Huisamen J (2018) Anysberg nature reserve and world heritage site. Protected area management plan 2018–2028. Cape TownGoogle Scholar
  9. Burnham KP, Anderson DR (2002) Model selection and multimodel inference: a practical information-theoretic approach, 2nd edn. Springer, New YorkGoogle Scholar
  10. Child M, Roxburgh L, Do Linh San E, et al (2016) The red list of mammals of South Africa, Swaziland and LesothoGoogle Scholar
  11. Colwell RK, Mao CX, Chang J (2004) Interpolating, extrapolating, and comparing incidence-based species accumulation curves. Ecology 85:2717–2727.  https://doi.org/10.2307/3450430 CrossRefGoogle Scholar
  12. Colyn RB, Radloff FGT, O’Riain MJ (2018) Camera trapping mammals in the scrubland’s of the Cape Floristic Kingdom—the importance of effort, spacing and trap placement. Biodivers Conserv 27:503–520.  https://doi.org/10.1007/s10531-017-1448-z CrossRefGoogle Scholar
  13. Connell JH (1978) Diversity in tropical rain forests and coral reefs. Science 199:1302–1310.  https://doi.org/10.1126/science.199.4335.1302 CrossRefGoogle Scholar
  14. Convention on Biological Diversity-Republic of South Africa (2014) South Africa’s fifth annual reportGoogle Scholar
  15. Cromsigt JPGM, Prins HHT, Olff H (2009) Habitat heterogeneity as a driver of ungulate diversity and distribution patterns: interaction of body mass and digestive strategy. Divers Distrib 15:513–522.  https://doi.org/10.1111/j.1472-4642.2008.00554.x CrossRefGoogle Scholar
  16. Cusack JJ, Dickman AJ, Rowcliffe JM et al (2015) Random versus game trail-based camera trap placement strategy for monitoring terrestrial mammal communities. PLoS ONE 10:1–14.  https://doi.org/10.1371/journal.pone.0126373 Google Scholar
  17. Darkoh MBK (2003) Regional perspectives on agriculture and biodiversity in the drylands of Africa. J Arid Environ 54:261–279.  https://doi.org/10.1006/jare.2002.1089 CrossRefGoogle Scholar
  18. Dean RJ, Milton SJ (1999) The Karoo: ecological patterns and processes. Cambridge University Press, CambridgeCrossRefGoogle Scholar
  19. Dean WRJ, Hoffinan MT, Meadows ME, Milton SJ (1995) Desertification in the semi-arid Karoo, South Africa: review and reassessment. J Arid Environ 30:247–264.  https://doi.org/10.1016/S0140-1963(05)80001-1 CrossRefGoogle Scholar
  20. DeFries R, Hansen A, Turner BL et al (2007) Land use change around protected areas: management to balance human needs and ecological function. Ecol Appl 17:1031–1038CrossRefGoogle Scholar
  21. Delgado CL (2003) Rising consumption of meat and milk in developing countries has created a new food revolution. J Nutr 133:3907S–3910S.  https://doi.org/10.1093/jn/133.11.3907S CrossRefGoogle Scholar
  22. Desmet PG, Cowling RM (1999) The climate of the Karoo—a functional approach. In: Dean WRJ, Milton SJ (eds) The Karoo—ecological patterns and processes, 1st edn. Cambridge University Press, Cambridge, pp 3–16CrossRefGoogle Scholar
  23. Dickman AJ, Macdonald EA, Macdonald DW (2011) A review of financial instruments to pay for predator conservation and encourage human-carnivore coexistence. Proc Natl Acad Sci USA 108:13937–13944.  https://doi.org/10.1073/pnas.1012972108 CrossRefGoogle Scholar
  24. Drouilly M, Clark A, O’Riain MJ (2018a) Multi-species occupancy modelling of mammal and ground bird communities in rangeland in the Karoo: a case for dryland systems globally. Biol Conserv 224:16–25.  https://doi.org/10.1016/j.biocon.2018.05.013 CrossRefGoogle Scholar
  25. Drouilly M, Nattrass N, O’Riain MJ (2018b) Dietary niche relationships among predators on farmland and a protected area. J Wildl Manage 82:507–518CrossRefGoogle Scholar
  26. Drouilly M, Tafani M, Nattrass N, O’Riain J (2018c) Spatial, temporal and attitudinal dimensions of conflict between predators and small-livestock farmers in the Central Karoo. Afr J Range Forage Sci 35:245–255CrossRefGoogle Scholar
  27. Du Plessis JJ, Avenant NL, Botha A et al (2018) Past and current management of predation on livestock. In: Kerley GIH, Wilson SL, Balfour D (eds) Livestock predation and its management in South Africa: a scientific assessment. Nelson Mandela University, Centre for African Conservation Ecology, Port Elizabeth, pp 125–177Google Scholar
  28. Du Toit JT, Cumming DHM (1999) Functional significance of ungulate diversity in African savannas and the ecological implications of the spread of pastoralism. Biodivers Conserv 8:1643–1661.  https://doi.org/10.1023/A:1008959721342 CrossRefGoogle Scholar
  29. Edwards S, Gange AC, Wiesel I (2015) Spatiotemporal resource partitioning of water sources by African carnivores on Namibian commercial farmlands. J Zool 297:22–31.  https://doi.org/10.1111/jzo.12248 CrossRefGoogle Scholar
  30. Estes R (1991) The behavior guide to African mammals: including hoofed mammals, carnivores, primates. University of California Press, BerkeleyGoogle Scholar
  31. Fisher JT, Burton AC (2018) Wildlife winners and losers in an oil sands landscape. Front Ecol Environ 16:323–328CrossRefGoogle Scholar
  32. Fox JW (2013) The intermediate disturbance hypothesis should be abandoned. Trends Ecol Evol 28:86–92.  https://doi.org/10.1016/j.tree.2012.08.014 CrossRefGoogle Scholar
  33. Gordon IJ, Hester AJ, Festa-Bianchet M (2004) The management of wild large herbivores to meet economic, conservation and environmental objectives. J Appl Ecol 41:1021–1031.  https://doi.org/10.1111/j.0021-8901.2004.00985.x CrossRefGoogle Scholar
  34. Gotelli N, Colwell R (2011) Estimating species richness. Biol Divers Front Meas Assess 12:39–54Google Scholar
  35. Gusset M, Swarner MJ, Mponwane L et al (2009) Human-wildlife conflict in northern Botswana: livestock predation by endangered African wild dog lycaon pictus and other carnivores. Oryx 43:67–72.  https://doi.org/10.1017/S0030605308990475 CrossRefGoogle Scholar
  36. Hey D (1964) The control of vertebrate problem animals in the Cape of Good Hope Republic of South Africa. Paper 30. In: Proceedings of the 3rd Vertebrate Pest ConferenceGoogle Scholar
  37. Hilty JA, Brooks C, Heaton E, Merenlender AM (2006) Forecasting the effect of land-use change on native and non-native mammalian predator distributions. Biodivers Conserv 15:2853–2871.  https://doi.org/10.1007/s10531-005-1534-5 CrossRefGoogle Scholar
  38. Hoffman MT, Cousins B, Meyer T et al (1999) Historical and contemporary land use and the desertification of the Karoo. In: Dean DJ, Milton SJ (eds) The Karoo: ecological patterns and processes. Cambridge University Press, UK, pp 257–273CrossRefGoogle Scholar
  39. Hooper DU, Chapin FS, Ewel JJ et al (2005) Effects of biodiversity on ecosystem functioning: a consensus of current knowledge. Ecol Monogr 75:3–35.  https://doi.org/10.1890/04-0922 CrossRefGoogle Scholar
  40. Huston M (1979) A general hypothesis of species diversity. Am Nat 113:81–101.  https://doi.org/10.1086/283366 CrossRefGoogle Scholar
  41. Jaccard P (1912) The distribution of the flore of the alpine zone. New Phytol 11:37–50.  https://doi.org/10.1111/j.1469-8137.1912.tb05611.x CrossRefGoogle Scholar
  42. Jenks K, Chanteap P, Damrongchainarong K et al (2011) Using relative abundance indices from camera- trapping to test wildlife conservation hypotheses-an example from Khao Yai National Using relative abundance indices from camera—trapping to test wildlife conservation hypotheses ± an example from Khao Yai. Trop Conserv Sci 4:113–131CrossRefGoogle Scholar
  43. Jost L (2006) Entropy and diversity. Oikos 113:363–375.  https://doi.org/10.1111/j.2006.0030-1299.14714.x CrossRefGoogle Scholar
  44. Kamler JF, Stenkewitz U, Macdonald DW (2013) Lethal and sublethal effects of black-backed jackals on cape foxes and bat-eared foxes. J Mamm 94:295–306.  https://doi.org/10.1644/12-MAMM-A-122.1 CrossRefGoogle Scholar
  45. Kauffman MJ, Sanjayan M, Lowenstein J et al (2007) Remote camera-trap methods and analyses reveal impacts of rangeland management on Namibian carnivore communities. Oryx 41:70–78.  https://doi.org/10.1017/S0030605306001414 CrossRefGoogle Scholar
  46. Kerley GIH, Wilson SL, Balfour D (2018) Livestock predation and its management in South Africa: a scientific assessment. Nelson Mandela University, Centre for African Conservation Ecology, Port ElizabethGoogle Scholar
  47. Kiffner C, Wenner C, Laviolet A et al (2015) From savannah to farmland: effects of land-use on mammal communities in the Tarangire-Manyara ecosystem, Tanzania. Afr J Ecol 53:156–166.  https://doi.org/10.1111/aje.12160 CrossRefGoogle Scholar
  48. Kinnaird MF, O’Brien TG (2012) Effects of private-land use, livestock management, and human tolerance on diversity, distribution, and abundance of large African mammals. Conserv Biol 26:1026–1039.  https://doi.org/10.1111/j.1523-1739.2012.01942.x CrossRefGoogle Scholar
  49. KPMG Services (Pty) Ltd (2012) Small enterprise development agency: research on the performance of the agricultural sector. KPMG Services (Pty) Ltd, Park TownGoogle Scholar
  50. Laliberte E, Legendre P (2010) A distance-based framework for measuring functional diversity from multiple traits. Ecology 91:299–305.  https://doi.org/10.2307/25661046 CrossRefGoogle Scholar
  51. Laliberte E, Legendre P, Bill Shipley (2015) Measuring functional diversity (FD) from multiple traits, and other tools for functional ecology, pp 1–28Google Scholar
  52. Larrucea ES, Brussard PF, Jaeger MM, Barrett RH (2007) Cameras, coyotes, and the assumption of equal detectability. J Wildl Manage 71:1682–1689.  https://doi.org/10.2193/2006-407 CrossRefGoogle Scholar
  53. Larsen TH, Williams NM, Kremen C (2005) Extinction order and altered community structure rapidly disrupt ecosystem functioning. Ecol Lett 8:538–547.  https://doi.org/10.1111/j.1461-0248.2005.00749.x CrossRefGoogle Scholar
  54. Lindstedt SL, Miller BJ, Buskirk SW (1986) Home range, time, and body size in mammals. Ecology 67:413–418.  https://doi.org/10.2307/1938584 CrossRefGoogle Scholar
  55. Maciejewski K, Baum J, Cumming GS (2016) Integration of private land conservation areas in a network of statutory protected areas: implications for sustainability. Biol Conserv 200:200–206.  https://doi.org/10.1016/j.biocon.2016.05.027 CrossRefGoogle Scholar
  56. Maitima JM, Mugatha SM, Reid RS et al (2009) The linkages between land use change, land degradation and biodiversity across East Africa. African J Environ Sci Technol 3:310–325.  https://doi.org/10.5897/AJEST08.173 Google Scholar
  57. Mann G, Lagesse J, O’Riain M, Parker D (2015a) Beefing up species richness? The effect of land-use on mammal diversity in an arid biodiversity hotspot. Afr J Wildl Res 45:321–331.  https://doi.org/10.3957/056.045.0321 CrossRefGoogle Scholar
  58. Mann GKH, O’Riain MJ, Parker DM (2015b) The road less travelled: assessing variation in mammal detection probabilities with camera traps in a semi-arid biodiversity hotspot. Biodivers Conserv 24:531–545.  https://doi.org/10.1007/s10531-014-0834-z CrossRefGoogle Scholar
  59. McKinney ML, Lockwood JL (1999) Biotic homogenization: a few winners replacing many losers in the next mass extinction. Trends Ecol Evol 14:450–453.  https://doi.org/10.1016/S0169-5347(99)01679-1 CrossRefGoogle Scholar
  60. Meek PD, Ballard G, Claridge A et al (2014) Recommended guiding principles for reporting on camera trapping research. Biodivers Conserv 23:2321–2343.  https://doi.org/10.1007/s10531-014-0712-8 CrossRefGoogle Scholar
  61. Msuha MJ, Carbone C, Pettorelli N, Durant SM (2012) Conserving biodiversity in a changing world: land use change and species richness in northern Tanzania. Biodivers Conserv 21:2747–2759.  https://doi.org/10.1007/s10531-012-0331-1 CrossRefGoogle Scholar
  62. Myers N, Kent J (2003) New consumers: the influence of affluence on the environment. Proc Natl Acad Sci U S A 100:4963–4968.  https://doi.org/10.1073/pnas.0438061100 CrossRefGoogle Scholar
  63. Nattrass N, Conradie B (2015) Jackal Narratives: Predator Control and Contested Ecologies in the Karoo. South Africa. J South Afr Stud 41(4):753–771CrossRefGoogle Scholar
  64. O’Brien TG, Baillie JEM, Krueger L, Cuke M (2010) The wildlife picture index: monitoring top trophic levels. Anim Conserv 13:335–343.  https://doi.org/10.1111/j.1469-1795.2010.00357.x CrossRefGoogle Scholar
  65. Odling-Smee L (2005) Dollars and sense. Nature 437:614–616.  https://doi.org/10.1038/437614a CrossRefGoogle Scholar
  66. Ogada DL (2014) The power of poison: pesticide poisoning of Africa’s wildlife. Ann N Y Acad Sci 1322:1–20.  https://doi.org/10.1111/nyas.12405 CrossRefGoogle Scholar
  67. Ogutu JO, Bhola N, Reid R (2005) The effects of pastoralism and protection on the density and distribution of carnivores and their prey in the Mara ecosystem of Kenya. J Zool 265:281–293.  https://doi.org/10.1017/S0952836904006302 CrossRefGoogle Scholar
  68. Ogutu JO, Kuloba B, Piepho H-P, Kanga E (2017) Wildlife population dynamics in human-dominated landscapes under community-based conservation: the example of Nakuru Wildlife Conservancy, Kenya. PLoS One 12:e0169730.  https://doi.org/10.1371/journal.pone.0169730 CrossRefGoogle Scholar
  69. Oksanen J, Blanchet FG, Friendly M, et al (2017) vegan: Community Ecology Package. R Packag. version 2.4-4 https://CRAN.R-project.org/package=vegan
  70. Owen-Smith N, Cromsigt JPGM, Le Roux E (2017) Smaller ungulates are first to incur imminent extirpation from an African protected area. Biol Conserv 216:108–114.  https://doi.org/10.1016/j.biocon.2017.10.013 CrossRefGoogle Scholar
  71. Palmer AR, Hoffman MT (1997) Nama Karoo. In: Cowling RM, Richardson DM, Pierce SM (eds) Vegetation of Southern Africa. Cambridge University Press, Cambridge, pp 167–186Google Scholar
  72. Pauly D (1995) Anecdotes and the shifting baseline syndrome of fisheries. Trends Ecol Evol 10:430.  https://doi.org/10.1016/S0169-5347(00)89171-5 CrossRefGoogle Scholar
  73. R Development Core Team (2016) R: a language and environment for statistical computingGoogle Scholar
  74. Rannestad OT, Danielsen T, Moe SR et al (2006) Adjacent pastoral areas support higher densities of wild ungulates during the wet season than the Lake Mburo National Park in Uganda. J Trop Ecol 22:675–683.  https://doi.org/10.1017/s0266467406003610 CrossRefGoogle Scholar
  75. Rich LN, Miller DAW, Robinson HS et al (2016) Using camera trapping and hierarchical occupancy modelling to evaluate the spatial ecology of an African mammal community. J Appl Ecol 53:1225–1235.  https://doi.org/10.1111/1365-2664.12650 CrossRefGoogle Scholar
  76. Ripple WJ, Estes JA, Beschta RL et al (2014) Status and ecological effects of the world’s largest carnivores. Science 343:1241484.  https://doi.org/10.1126/science.1241484 CrossRefGoogle Scholar
  77. Ripple WJ, Newsome TM, Wolf C et al (2015) Collapse of the world’s largest herbivores. Sci Adv 1:e1400103.  https://doi.org/10.1126/sciadv.1400103 CrossRefGoogle Scholar
  78. Rouget M, Richardson DM, Cowling RM (2003) The current configuration of protected areas in the Cape Floristic Region, South Africa—reservation bias and representation of biodiversity patterns and processes. Biol Conserv 112:129–145.  https://doi.org/10.1016/S0006-3207(02)00396-8 CrossRefGoogle Scholar
  79. Shannon CE (1948) A mathematical theory of communication. Bell Syst Tech J 27:379–423.  https://doi.org/10.1145/584091.584093 CrossRefGoogle Scholar
  80. Shaw JM, Reid TA, Schutgens M et al (2017) High power line collision mortality of threatened bustards at a regional scale in the Karoo, South Africa. Ibis.  https://doi.org/10.1111/ibi.12553 Google Scholar
  81. Skead CJ (1987) Historical mammal incidence in the Cape Province: Vol. 2—The eastern half of the Cape Province, including the Ciskei, Transkei and East Griqualand. Nat Environ Conserv Cape Town, pp 267–311Google Scholar
  82. Skinner JD, Chimimba CT (2005) The mammals of the Southern African subregion. Cambridge University Press, CambridgeCrossRefGoogle Scholar
  83. Sollmann R, Mohamed A, Samejima H, Wilting A (2013) Risky business or simple solution—relative abundance indices from camera-trapping. Biol Conserv 159:405–412.  https://doi.org/10.1016/j.biocon.2012.12.025 CrossRefGoogle Scholar
  84. Statistics SA (2006) Census of Agriculture Provincial Statistics 2002- Limpopo: financial and production statisticsGoogle Scholar
  85. Stephens PA, d’Sa CA, Sillero-Zubiri C, Leader-Williams N (2001) Impact of livestock and settlement on the large mammalian wildlife of Bale Mountains National Park, southern Ethiopia. Biol Conserv 100:307–322.  https://doi.org/10.1016/S0006-3207(01)00035-0 CrossRefGoogle Scholar
  86. Tensen L, Drouilly M, van Vuuren BJ (2018) Genetic structure and diversity within lethally managed populations of two mesopredators in South Africa. J Mammal 99(6):1411–1421Google Scholar
  87. Terborgh J, Estes J (2010) Trophic cascades: predators, prey, and the changing dynamics of nature. Island Press, Washington, DCGoogle Scholar
  88. Thorn M, Green M, Dalerum F et al (2012) What drives human-carnivore conflict in the North West Province of South Africa? Biol Conserv 150:23–32.  https://doi.org/10.1016/j.biocon.2012.02.017 CrossRefGoogle Scholar
  89. Tobler MW, Carrillo-Percastegui SE, Leite Pitman R et al (2008) An evaluation of camera traps for inventorying large- and medium-sized terrestrial rainforest mammals. Anim Conserv 11:169–178.  https://doi.org/10.1111/j.1469-1795.2008.00169.x CrossRefGoogle Scholar
  90. Todd SW (2006) Gradients in vegetation cover, structure and species richness of Nama-Karoo shrublands in relation to distance from livestock watering points. J Appl Ecol 43:293–304.  https://doi.org/10.1111/j.1365-2664.2006.01154.x CrossRefGoogle Scholar
  91. Treves A, Karanth KU (2003) Human-carnivore conflict and perspectives on carnivore management worldwide. Conserv Biol 17:1491–1499.  https://doi.org/10.1111/j.1523-1739.2003.00059.x CrossRefGoogle Scholar
  92. van Sittert L (1998) Keeping the enemy at bay: the extermination of wild carnivora in the Cape Colony, 1889–1910. Environ Hist Durh N C 3:333–356.  https://doi.org/10.2307/3985183 CrossRefGoogle Scholar
  93. van Sittert L (2016) Routinising genocide: the politics and practice of vermin extermination in the Cape Province c.1889–1994. J Contemp African Stud 34:111–128CrossRefGoogle Scholar
  94. Western D, Russell S, Cuthill I (2009) The status of wildlife in protected areas compared to non-protected areas of Kenya. PLoS ONE 4:e6140.  https://doi.org/10.1371/journal.pone.0006140 CrossRefGoogle Scholar
  95. Williams RE, Allred BW, Denio RM, Paulsen HA (1968) Conservation, development, and use of the world’s rangelands. J Range Manag 21:355.  https://doi.org/10.2307/3896081 CrossRefGoogle Scholar
  96. Wilson JB (1991) Methods for fitting dominance/diversity curves. J Veg Sci 2:35–46.  https://doi.org/10.2307/3235896 CrossRefGoogle Scholar
  97. Woodgate Z, Distiller G, O’Riain J (2018) Variation in mammal species richness and relative abundance in the Karoo. Afr J Range Forage Sci 35:325–334CrossRefGoogle Scholar
  98. Wretenberg J, Pärt T, Berg Å (2010) Changes in local species richness of farmland birds in relation to land-use changes and landscape structure. Biol Conserv 143:375–381.  https://doi.org/10.1016/j.biocon.2009.11.001 CrossRefGoogle Scholar
  99. WWF-South Africa (2017) Stewardship agreements secure natural bounty | WWF South Africa. http://www.wwf.org.za/?22581/Stewardship-agreements-secure-natural-bounty-of-the-Succulent-Karoo. Accessed 22 Nov 2017
  100. Zavaleta ES, Hulvey KB (2004) Realistic species losses disproportionately reduce grassland resistance to biological invaders. Science 306:1175–1177.  https://doi.org/10.1126/science.1102643 CrossRefGoogle Scholar
  101. Zimmermann A, Baker N, Inskip C et al (2010) Contemporary views of human-carnivore conflicts on wild rangelands. In: du Toit JT, Kock R, Deutsch JC (eds) Wild rangelands: conserving wildlife while maintaining livestock in semi-arid ecosystems, 1st edn. Blackwell Publishing, Hoboken, pp 129–151CrossRefGoogle Scholar

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© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Institute for Communities and Wildlife in Africa, University of Cape TownRondeboschSouth Africa

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