Journal of Insect Conservation

, Volume 18, Issue 3, pp 469–477 | Cite as

Effects of vineyard management on biotic homogenization of insect–flower interaction networks in the Cape Floristic Region biodiversity hotspot

  • Temitope KehindeEmail author
  • Michael J. Samways


Plant and animal communities, as well as their interaction networks in agricultural landscapes, face threats of biotic homogenization due mostly to intensive management and cropland expansion. It is unclear whether agri-environmental schemes that promote environmentally friendly farming approaches can reduce the effects of these threats which cause reduction in regional (beta) diversity. Here, we examined biotic homogenization of insect–flower interactions in vineyards managed under agri-environmental schemes in the Cape Floristic Region (CFR). The interaction networks studied are of significant conservation value in the fragmented CFR agricultural landscape. Assessment was done using permutational distance-based test for homogeneity of multivariate dispersion to determine whether vineyards contributed to loss of diversity across the landscape through homogenization of their insect–flower interaction networks and flower visitor community. Vineyards did not show significant homogenization of interaction networks and flower-visitor community when compared to natural sites. Organic viticulture, integrated vineyard management and on-going protection of natural vegetation close to vineyards, as practiced in the CFR, are possibly contributing to the reduction in biotic homogenization observed here. Further vineyard expansion must however be prevented to avoid future biotic losses. These measures should be supported by all stakeholders in the conservation sector to achieve wine production while at the same time conserving the natural complement of biodiversity.


Agri-environmental schemes Conservation Multivariate dispersion Organic management Natural vegetation 



We thank landowners for making their vineyards available. We also thank C. Eardley, J. Colville, H. Geertsema, S. Kritzinger-Klopper and A. Babalola for help with insect and plant identification and study site map. Funding was provided by Spier wine farms. T. K. also received funding from German Academic Exchange Service (DAAD) and AG Leventis Foundation.


  1. Anderson MJ (2006) Distance-based tests for homogeneity of multivariate dispersions. Biometrics 62:245–253PubMedCrossRefGoogle Scholar
  2. Anderson MJ, Ellingsen KE, McArdle BH (2006) Multivariate dispersion as a measure of beta diversity. Ecol Lett 9:683–693PubMedCrossRefGoogle Scholar
  3. Biodiversity and Wine Initiative (2011) WWF South Africa—biodiversity and wine initiative. Accessed 10 May 2011
  4. Brittain CA, Vighi M, Bommarco R, Settele J, Potts SG (2010) Impacts of a pesticide on pollinator species richness at different spatial scales. Basic Appl Ecol 11:106–115CrossRefGoogle Scholar
  5. Bruggisser OT, Schmidt-Entling MH, Bacher S (2010) Effects of vineyard management on biodiversity at three trophic levels. Biol Conserv 143:1521–1528CrossRefGoogle Scholar
  6. Cardinale BJ, Duffy JE, Gonzalez A, Hooper DU, Perrings C, Venail P, Narwani A, Mace GM, Tilman D, Wardle DA, Kinzig AP, Daily GC, Loreau M, Grace JB, Larigauderie A, Srivastava DS, Naeem S (2012) Biodiversity loss and its impact on humanity. Nature 486:59–67PubMedCrossRefGoogle Scholar
  7. Carvalheiro LG, Kunin WE, Keil P, Aguirre-Gutierrez J, Ellis WN, Fox R, Groom Q, Hennekens S, Landuyt WV, Maes D, Van de Meutter F, Michez D, Rasmont P, Ode B, Potts SG, Reemer M, Roberts SPM, Schaminée J, WallisDeVries MF, Biesmeije JC (2013) Species richness declines and biotic homogenization have slowed down for NW-European pollinators and plants. Ecol Lett 16:870–878PubMedCentralPubMedCrossRefGoogle Scholar
  8. Clough Y, Holzschuh A, Gabriel D, Purtauf T, Kleijn D, Kruess A, Steffan-Dewenter I, Tscharntke T (2007) Alpha and beta diversity of arthropods and plants in organically and conventionally managed wheat fields. J Appl Ecol 44:804–812CrossRefGoogle Scholar
  9. Conservation International (2013) Cape Floristic Region Accessed 31 Oct 2013
  10. Costello MJ, Daane KM (1998) Influence of ground cover on spider populations in a table grape vineyard. Ecol Entomol 23:33–40CrossRefGoogle Scholar
  11. Cowling RM (1990) Diversity components in a species rich area of the Cape Floristic Region. J Veg Sci 5:699–710CrossRefGoogle Scholar
  12. Donaldson JS (2002) Pollination in agricultural landscapes, a South African perspective. In: Kevan P, Imperatriz Fonseca VL (eds) Pollinating bees—the conservation link between agriculture and nature. Ministry of Environment, Brasília, pp 97–104Google Scholar
  13. Dormann CF, Schweiger O, Augenstein I, Bailey D, Billeter R, de Blust G, DeFilippi R, Frenzel M, Hendrickx F, Herzog F, Klotz S, Liira J, Maelfait J-P, Schmidt T, Speelmans M, van Wingerden WKRE, Zobel M (2007) Effects of landscape structure and land-use intensity on similarity of plant and animal communities. Glob Ecol Biogeogr 6:774–787CrossRefGoogle Scholar
  14. EEA, European Environmental Agency (2012) Corine Land Cover 2000 by Country. Accessed 31st Oct 2013
  15. Gliessman SR (2001) Agroecosystem sustainability: developing practical strategies. CRC Press, Boca RatonGoogle Scholar
  16. Hole DG, Perkins AJ, Wilson JD, Alexander IH, Grice PV, Evans AD (2005) Does organic farming benefit biodiversity? Biol Conserv 122:113–130CrossRefGoogle Scholar
  17. Holzschuh A, Steffan-Dewenter I, Kleijn D, Tscharntke T (2007) Diversity of flower-visiting bees in cereal fields: effects of farming system, landscape composition and regional context. J Appl Ecol 44:41–49CrossRefGoogle Scholar
  18. Isaia M, Bona F, Badino G (2006) Influence of landscape diversity and agricultural practices on spider assemblage in Italian vineyards of Langa Astigiana (Northwest Italy). Environ Entomol 35:297–307CrossRefGoogle Scholar
  19. Johnson SD, Steiner KE (2003) Specialized pollination systems in southern Africa. S Afr J Sci 99:345–348Google Scholar
  20. Kehinde TO, Samways MJ (2012) Endemic pollinator response to organic vs. conventional farming and landscape context in the Cape Floristic Region Biodiversity hotspot. Agric Ecosyst Environ 146:162–167CrossRefGoogle Scholar
  21. Keith SA, Newton AC, Morecroft MD, Bealey CE, Bullock JM (2009) Taxonomic homogenization of woodland plant communities over 70 years. Proc R Soc B 276:3539–3544PubMedCentralPubMedCrossRefGoogle Scholar
  22. Kennedy CM, Lonsdorf E, Neel MC, Williams NM, Ricketts TH, Winfree R, Bommarco R, Brittain C, Burley AL, Cariveau D, Carvalheiro LG, Chacoff NP, Cunningham SA, Danforth BN, Dudenhöffer J-H, Elle E, Gaines HR, Garibaldi LA, Gratton C, Holzschuh A, Isaacs R, Javorek SK, Jha S, Klein AM, Krewenka K, Mandelik Y, Mayfield MM, Morandin L, Neame LA, Otieno M, Park M, Potts SG, Rundlöf M, Saez A, Steffan-Dewenter I, Taki H, Viana BF, Westphal C, Wilson JK, Greenleaf SS, Kremen C (2013) A global quantitative synthesis of local and landscape effects on wild bee pollinators in agroecosystems. Ecol Lett 16:584–599PubMedCrossRefGoogle Scholar
  23. Kuhlmann M (2009) Patterns of diversity, endemism and distribution of bees (Insecta: Hymenoptera: Anthophila) in southern Africa. S Afr J Bot 75:726–738CrossRefGoogle Scholar
  24. Laliberté E, Tylianakis JM (2010) Deforestation homogenizes tropical parasitoid-host networks. Ecology 91:1740–1747PubMedCrossRefGoogle Scholar
  25. Legendre L, Gallagher ED (2001) Ecologically meaningful transformations for ordination of species data. Oecologia 129:271–280CrossRefGoogle Scholar
  26. Legendre P, Legendre L (1998) Numerical ecology, second English edition. Elsevier Science, AmsterdamGoogle Scholar
  27. Levene H (1960) Robust tests for equality of variances. In: Olkin I, Ghurye SG, Hoeffding W, Madow WG, Mann HB (eds) Contributions to probability and statistics. Stanford University Press, California, pp 278–292Google Scholar
  28. Lockwood JL, McKinney ML (2001) Biotic homogenization. Kluwer, New YorkCrossRefGoogle Scholar
  29. Loreau M, Mouquet N, Gonzalez A (2003) Biodiversity as spatial insurance in heterogeneous landscapes. Proc Natl Acad Sci 100:12756–12770CrossRefGoogle Scholar
  30. Manning J (2007) Field guide to fynbos. Struik Publishers, Cape TownGoogle Scholar
  31. McKinney ML, Lockwood JL (1999) Biotic homogenization: a few winners replacing many losers in the next mass extinction. Trends Ecol Evol 14:450–453PubMedCrossRefGoogle Scholar
  32. Myers N, Mittermeier RA, Mittermeier CG, da Fonseca GAB, Kent J (2000) Biodiversity hotspots for conservation priorities. Nature 403:853–858PubMedCrossRefGoogle Scholar
  33. Olden JD, Poff NL (2003) Toward a mechanistic understanding and prediction of biotic homogenization. Am Nat 162:442–460PubMedCrossRefGoogle Scholar
  34. Olden JD, Poff NL, Douglas MR, Douglas ME, Fausch KD (2004) Ecological and evolutionary consequences of biotic homogenization. Trends Ecol Evol 19:18–24PubMedCrossRefGoogle Scholar
  35. Olson DM, Dinerstein E (2002) The global 200: priority ecoregions for global conservation. Ann Mo Bot Gard 89:199–224CrossRefGoogle Scholar
  36. Paterson-Jones C (1997) The Cape floral kingdom. New Holland Publishers, Cape TownGoogle Scholar
  37. Perry WL, Lodge DM, Feder JL (2002) Importance of hybridization between indigenous and nonindigenous freshwater species: an overlooked threat to North American biodiversity. Syst Biol 51:255–275PubMedCrossRefGoogle Scholar
  38. Rogers D (2006) Cheers! A toast to fynbos friendly wines. Africa Geographic, Cape TownGoogle Scholar
  39. R Development Core Team (2010) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria ISBN 3-900051-70-0. Accessed 10 May 2011
  40. Sanguankeo PP, León RG (2011) Weed management practices determine plant and arthropod diversity and seed predation in vineyards. Weed Res 51:404–412CrossRefGoogle Scholar
  41. Scheper J, Holzschuh A, Kuussaari M, Potts SG, Rundlof M, Smith HG, Kleijn D (2013) Environmental factors driving the effectiveness of European agri-environmental measures in mitigating pollinator loss—a meta-analysis. Ecol Lett 16:912–920PubMedCrossRefGoogle Scholar
  42. Van der Niet T, Johnson SD (2009) Patterns of plant speciation in the Cape Floristic Region. Mol Phylogenetics Evol 51:85–93CrossRefGoogle Scholar
  43. Viers JH, Williams JN, Nicholas KA, Barbosa O, Kotzé I, Spence L, Webb LB, Merenlender A, Reynolds M (2013) Vinecology: pairing wine with nature. Conserv Lett 6:287–299Google Scholar
  44. Waterman RJ, Pauw A, Barraclough TG, Savolainen V (2009) Pollinators underestimated: a molecular phylogeny reveals widespread floral congruence in oil-secreting orchids (sub-tribe Coryciinae) of the Cape of South Africa. Mol Phylogenetics Evol 51:100–110CrossRefGoogle Scholar
  45. Zuur AF, Ieno EN, Smith GM (2007) Analyzing ecological data. Springer, New YorkGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Department of Conservation Ecology and EntomologyStellenbosch UniversityMatielandSouth Africa
  2. 2.Department of ZoologyObafemi Awolowo UniversityIle-IfeNigeria

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