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Estimating patterns of vulnerability in a changing landscape: a case study of New Zealand's indigenous grasslands

Published online by Cambridge University Press:  14 November 2012

EMILY S. WEEKS ,
JACOB M. OVERTON  and
SUSAN WALKER
EMILY S. WEEKS*
Affiliation:
Landcare Research, Private Bag 11052, Palmerston North, New Zealand
JACOB M. OVERTON
Affiliation:
Landcare Research, Private Bag 3127, Hamilton, New Zealand
SUSAN WALKER
Affiliation:
Landcare Research, Private Bag 1930, Dunedin, New Zealand
*
*Correspondence: Dr Emily Weeks e-mail: [email protected]
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Summary

Effective conservation planning must anticipate the rates and patterns of dynamic threats to biodiversity, such as rapid changes in land use. Poor understanding and prediction of drivers and patterns of conversion of habitat can hinder assessments of the relative vulnerability of areas of remaining indigenous habitat to conversion, and identification of habitats in most immediate need of protection. Methods developed to model vulnerability to conversion vary in their complexity and applicability to conservation management. Generalized additive models provide a simple robust method to explore predictors and patterns of land-use conversion, and may be used to predict future patterns of conversion using recent land conversion data. This paper provides the first data-derived and statistically validated measurement of the vulnerability of New Zealand's indigenous grasslands to conversion. Higher altitude and more marginal (for agriculture and forestry) land showed greater conversion, and models based on earlier conversion patterns performed more poorly in predicting current patterns of conversion. Up-to-date land conversion data appear crucial for accurately predicting future vulnerability to habitat conversion.

Keywords

biodiversityconservation planningindigenous grasslandland use changevulnerability
Type
Papers
Information
Environmental Conservation , Volume 40 , Issue 1 , March 2013 , pp. 84 - 95
Copyright
Copyright © Foundation for Environmental Conservation 2012

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References

Ashdown, M. & Lucas, D. (1987) Tussock Grasslands Landscape Values and Vulnerability. Wellington, New Zealand: New Zealand Environmental Council.Google Scholar
Barringer, J.R.F., McNeil, S. & Pairman, D. (2002) Progress on assessing the accuracy of a high resolution digital elevation model for New Zealand. Proceedings 5th International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Data, Melbourne, Australia, 10–12 July 2002, ed. Hunter, G. & Lowell, K., pp. 187–195. Delft, the Netherlands: Delft University Press.Google Scholar
Baisden, W.T. (2006) Agricultural and forest productivity for modelling policy scenarios: evaluating approaches for New Zealand greenhouse gas mitigation. Journal of the Royal Society of New Zealand 36: 1–15.Google Scholar
Carwardine, J., Wilson, K.A., Hajkowicz, S.A., Smith, R.J., Klein, C.J., Watts, M. & Possingham, H.P. (2009) Conservation planning when costs are uncertain. Conservation Biology 24: 1529–1537.Google Scholar
De'ath, G. (2007) Boosted tress for ecological modeling and prediction. Ecology 88 (1): 243–251.CrossRefGoogle Scholar
de Koning, G.H.J., Verburg, P.H., Veldkamp, A. & Fresco, L.O. (1999) Multi-scale modelling of land use change dynamics in Ecuador. Agriculture Systems 61: 77–93.CrossRefGoogle Scholar
de Lange, P.J., Norton, D.A., Courtney, S.P., Heenan, P.B., Barkla, E.K., Cameron, R., Hitchmough, R. & Townsend, A.J. (2009) Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47: 61–96.Google Scholar
Elith, J., Leathwick, T., & Hastie, T. (2008) A working guide to boosted regression trees. Journal of Animal Ecology 77 (4): 802–813.CrossRefGoogle ScholarPubMed
Ewers, R.M., Kliskey, A.D., Walker, S., Rutledge, D., Harding, J.S. & Didham, R.K. (2006) Past and future trajectories of forest loss in New Zealand. Biological Conservervation 133: 312–325.Google Scholar
Guisan, A., Broennimann, O., Engler, R., Vust, M., Yoccoz, N.G., Lehmann, A. & Zimmerman, N.E. (2006) Using nice-based models to improve the sampling of rare species. Conservation Biology 20: 501–511.Google Scholar
Hall, C.A.S., Tian, H., Qi, Y., Pontius, G. & Cornell, J. (1995) Modelling spatial and temporal patterns of tropical land use change. Journal of Biogeography 22: 753–757.Google Scholar
Hoekstra, J.M., Boucher, T.M., Ricketts, T.H. & Roberts, C. (2005) Confronting a biome crisis: global disparities of habitat loss and protection. Ecology Letters 8: 23–29.CrossRefGoogle Scholar
Houghton, R.A. (1994) The worldwide extent of land-use change. Bioscience 44: 305–313.Google Scholar
Kangalawe, R.Y.M. (2010) Changing land use/cover patterns and implications for sustainable environmental management in the Irangi Hills, central Tanzania. Environmental Development and Sustainability 12: 449–461.CrossRefGoogle Scholar
Lambin, E.F., Turner, B.L., Geist, H.J., Agbola, S.B., Angelsen, A., Bruce, J.W., Coomes, O.T., Dirzo, R., Fischer, G., Folke, C., George, P.S., Homewood, K., Imbernon, J., Leemans, R., Li, X., Moran, E.F., Mortimore, M., Ramakrishnan, P.S., Richards, J.F., Skånes, H., Steffen, W., Stone, G.D., Svedin, U., Veldkamp, T.A., Vogel, C. & Xu, J. (2001) The causes of land-use and land-cover change: moving beyond the myths. Global Environmental Change 11: 261–269.CrossRefGoogle Scholar
Leathwick, J., Morgan, F., Wilson, G., Rutledge, D., McLeod, M. & Johnston, K. (2003) Land Environments of New Zealand. Wellington, New Zealand: Colorcraft Ltd.Google Scholar
Lehmann, A., Overton, J.M. & Austin, M.P. (2002) Regression models for spatial prediction: their role for biodiversity and conservation. Biodiversity and Conservation 11: 2085–2092.Google Scholar
Levy, E.B. (1951). Grasslands of New Zealand. Wellington, New Zealand: R.W. Stiles & Co.Google Scholar
Lynn, I., Manderson, M., Page, G., Harmsworth, G., Eyeles, G., Douglas, G., Mackay, A. & Newsome, P. (2009) Land Use Capability Survey Hand Book: A New Zealand Handbook for the Classification of Land. Third edition. Hamilton, Lincoln and Lower Hutt, New Zealand: Agresearch, Landcare Research and GNS Science.Google Scholar
Margules, C.R. & Pressey, R.L. (2000) Systematic conservation planning. Nature 405: 243–253.CrossRefGoogle ScholarPubMed
Margules, C.R., Pressey, R.L. & Williams, P.H. (2002) Representing biodiversity: data and procedures for identifying priority areas for conservation. Journal of Bioscience 27: 309–326.CrossRefGoogle ScholarPubMed
Mark, A. (1993) Ecological Degradation. New Zealand Journal of Ecology 17:1–4.Google Scholar
Mark, A.F. (1965) The environment and growth rate of narrow-leaved snow tussock, Chionochloa rigida, in Otago. New Zealand Journal of Botany 3: 73–103.CrossRefGoogle Scholar
Mark, A.F., & McLennan, B. (2005) The conservation status of New Zealand's indigenous grasslands. New Zealand Journal of Botany 43: 245–270.Google Scholar
Mark, A.F., Michel, P., Dickinson, K.J.M. & McLennan, B. (2009) The conservation (protected area) status of New Zealand's indigenous grasslands: an update. New Zealand Journal of Botany 47: 53–60.Google Scholar
Mathsoft (1998–1999) S-PLUS 2000 Professional Release 2. Mathsoft Inc. Now Parametric Technology Corporation [www document]. URL http://www.ptc.com/company/mathsoft/Google Scholar
Ministry of Agriculture and Forestry (2007) Situation and Outlook for New Zealand Agriculture and Forestry. Wellington, New Zealand: MAF.Google Scholar
McGlone, M.S. (2001) The origin of the indigenous grasslands of southeastern South Island in relation to pre-human woody ecosystems. New Zealand Journal of Ecology 25: 1–15.Google Scholar
Mottet, A., Ladet, S., Coqué, N. & Gibon, A. (2006) Agricultural land-use change and its drivers in mountain landscapes: A case study in the Pyrenees. Agriculture Ecosystems and Environment 114: 296–310.Google Scholar
Newsome, P.F.J. (1987) The Vegetative Cover of New Zealand. Published for the National Water and Soil Conservation Authority for the National Water and Soil Directorate, Wellington.Google Scholar
Newsome, P.F.J., Wilde, R.H. & Willoughby, E.J. (2000) Land Resource Information System Spatial Data Layers. Palmerston North, New Zealand: Landcare Research.Google Scholar
Odum, H.T. (1983) Systems Ecology. New York, NY, USA: Wiley Interscience.Google Scholar
Parks, P.J. (1995) Explaining ‘irrational’ land use: risk aversion and marginal agricultural land. Journal of Environmenal Economics and Management 28: 34–47.Google Scholar
Patrick, B.H. & Dugdale, J.S. (2000) Conservation status of New Zealand Lepidoptera. Science for Conservation 136. Wellington New Zealand: Deptartment of Conservation.Google Scholar
Patterson, G.B. (1992) The ecology of a New Zealand grassland lizard guild. Journal of the Royal Society New Zealand 22: 91–106.Google Scholar
Pontius, R.G. & Schneider, L.C. (2001) Land-cover change model validation by an ROC method for the Ipswich watershed, Massachusetts, USA. Agriculture Ecosystems and Environment 85: 239–248.Google Scholar
Pontius, R.G.J. & Batchu, K. (2003) Using the Relative Operating Characteristic to quantify certainty in prediction of location of land cover change in India. Transactions in GIS 7: 467–484.Google Scholar
Pontius, R.G., Cornell, J.D. & Hall, C.A.S. (2001) Modeling the spatial pattern of land-use change with GEOMOD2: application and validation for Costa Rica. Agriculture Ecosystems and Environment 85: 191–203.Google Scholar
Pontius, R.G., Huffaker, D. & Denman, K. (2004) Useful techniques of validation for spatially explicit land-change models. Ecological Modelling 179: 445–461.Google Scholar
Pressey, R.L. & Cowling, R.M. (2001) Reserve selection algorithms and the real world. Conservation Biology 15: 275–277.Google Scholar
Pressey, R.L., Cabeza, M., Watts, M.E., Cowling, R.M. & Wilson, K.A. (2007) Conservation planing in a changing world. Trends in Ecology and Evolution 22: 583–592.Google Scholar
Reidsma, P., Tekelenburg, T., van den Berg, M., & Alkemade, R. (2006) Impacts of land-use change on biodiversity: an assessment of agricultural biodiversity in the European Union. Agriculture, Ecosystems and Environment 114: 86–102.Google Scholar
Ricketts, T. & Imhoff, M. (2003) Biodiveristy, urban areas, and agriculture: locating priority ecoregions for conservation. Conservation Ecology 8: 1.Google Scholar
Rouget, M., Cowling, R.M., Pressey, R.L. & Richardson, D.M. (2003) Identifying spatial components of ecological and evolutionary processes for regional conservation planning in the Cape Floristic Region, South Africa. Diversity and Distributions 9: 191–210.CrossRefGoogle Scholar
Rounsevell, M.D.A., Reginster, I., Araújo, M.B., Carter, T.R., Dendoncker, N., Ewert, F., House, J.I., Kankaanpää, S., Leemans, R., Metzger, M.J., Schmit, C., Smith, P. & Tuck, G. (2006) A coherent set of future land use change scenarios for Europe. Agriculture, Ecosystems and Environment 114: 57–68.Google Scholar
Sala, O.E., Chapin, F.S. I.I.I., Armesto, J.J., Berlow, E., Bloomfield, J., Dirzo, R., Huber-Sanwald, E., Huenneke, L., Jackson, R.B., Kinzig, A., Leemans, R., Lodge, D.M., Mooney, H.A., Oesterheld, M., Poff, N.L., Sykes, M.T., Walker, B.H., Walker, M. & Wall, D.H. (2000) Global biodiversity scenarios for the year 2100. Science 287: 1770–1774.Google Scholar
Schoonjans, F., Zalata, A., Depuydt, C.E. & Comhaire, F.H. (1995) MedCalc: a new computer program for medical statistics. Computer Methods Programs in Biomedicine 48: 257–262.Google Scholar
Stevens, G., McGlone, M. & McCulloch, B. (1988) Prehistoric New Zealand. Auckland, New Zealand: Heinemann Reed.Google Scholar
Swets, J.A. (1988) Measuring the accuracy of diagnostic systems. Science 240: 1285–1293.Google Scholar
Veldkamp, A. & Fresco, L.O. (1996) CLUE-CR: an integrated multi-scale model to simulate land use change scenarios in Costa Rica. Ecological Modelling 91: 231–248.Google Scholar
Veldkamp, A. & Lambin, E.F. (2001) Predicting land-use change. Agricultre Ecosystems and Environment 85: 1–6.Google Scholar
Walker, S., Price, R., Rutledge, D., Stephens, R.T.T. & Lee, W.G. (2006) Recent loss of indigenous cover in New Zealand. New Zealand Journal of Ecology 30: 169–177.Google Scholar
Walker, S., Price, R. & Stephens, R.T.T. (2008) An index of risk as a measure of biodiersity conservation achieved through land reform. Conservation Biology 22: 48–59Google Scholar
Weeks, E.S., Walker, S., Dymond, J.R., Shepherd, J.D. & Clarkson, B.D. (2013) Patterns of past and recent conversion of New Zealand's indigenous grasslands in the South Island, New Zealand. New Zealand Journal of Ecology (in press).Google Scholar
Wilson, K., Newton, A., Echeverría, C., Weston, C. & Burgman, M. (2005 a). A vulnerability analysis of the temperate forests of south central Chile. Biological Conservation 122: 9–21.CrossRefGoogle Scholar
Wilson, K., Pressey, R.L., Newton, A., Burgman, M., Possingham, H. & Weston, C. (2005 b) Measuring and incorporating vulnerability into conservation planning. Environmental Management 35: 527–543.Google Scholar
Wilson, K.A., Underwood, E.C., Morrison, S.A., Klausmeyer, K.R., Murdoch, W.W., Reyers, B., Wardell-Johnson, G., Marquet, P.A., Rundel, P.W., McBride, M.F., Pressey, R.L., Bode, M., Hoekstra, J.M., Andelman, S., Looker, M., Rondinini, C., Kareiva, P., Shaw, M.R. & Possingham, H.P. (2007) Conserving biodiversity efficiently: what to do, where, and when. PLOS Biology 5: 1850–1861.Google Scholar
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