Evaluating cost-effectiveness of conservation management actions in an agricultural landscape on a regional scale

Abstract Agricultural landscapes are the dominating landscape types in many parts of the world. Land-use intensification and spatial homogeneity are major threats to biodiversity in these landscapes. Thus cost-effective strategies for species conservation in large-scale agricultural landscapes are required. Spatial optimisation methods can be applied to identify the most effective allocation of a given budget for conservation. However, the optimisation of spatial land-use patterns in real landscapes on a large spatial scale is often limited by computational power. In this paper, we present a simplifying methodology for analysing cost-effectiveness of management actions on a regional scale. A spatially explicit optimisation approach is employed to identify optimum agricultural land-use patterns with respect to an ecological-economic goal function. Based on the optimisation results for small scale landscape samples we derive a target- and site-specific cost–benefit function that can be applied to predict ecological improvement as a function of costs and local conditions on a large spatial scale. Thus, it is possible to identify areas where management actions for ecological improvement are most efficient with respect to a certain conservation goal. The fitted function is validated independently. In a case study, we analyse cost-effectiveness of management actions to enhance habitat suitability for three different target species. The approach is flexible and could be applied to a variety of other landscape planning problems dealing with the effective allocation of management measures.

[1]  Martin G. Raphael,et al.  OPTIMIZATION OF HABITAT PLACEMENT: A CASE STUDY OF THE NORTHERN SPOTTED OWL IN THE OLYMPIC PENINSULA , 1997 .

[2]  Ross Cullen,et al.  Integrating Economics into Priority Setting and Evaluation in Conservation Management , 2003 .

[3]  Alexey Voinov,et al.  Optimization methodology for land use patterns using spatially explicit landscape models , 2002 .

[4]  S. Polasky,et al.  CONSERVING SPECIES IN A WORKING LANDSCAPE: LAND USE WITH BIOLOGICAL AND ECONOMIC OBJECTIVES , 2005 .

[5]  Frank Wätzold,et al.  The importance of economic costs in the development of guidelines for spatial conservation management , 2001 .

[6]  Claire A. Montgomery,et al.  Modeling joint production of wildlife and timber , 2004 .

[7]  Ralf Seppelt,et al.  Optimizing landscape configuration to enhance habitat suitability for species with contrasting habitat requirements , 2006 .

[8]  Ann-Christin Weibull,et al.  Species richness in agroecosystems: the effect of landscape, habitat and farm management , 2003, Biodiversity & Conservation.

[9]  Robert G. Haight,et al.  Comparing Extinction Risk and Economic Cost in Wildlife Conservation Planning , 1995 .

[10]  Frank Wätzold,et al.  An ecological-economic modelling procedure to design compensation payments for the efficient spatio-temporal allocation of species protection measures , 2002 .

[11]  K. Kujawa,et al.  Occurrence of the Red-backed Shrike [Lanius collurio] depends on natural factors and mode of land use in the Quillow catchment, Germany , 2004 .

[12]  Atte Moilanen,et al.  Single‐species dynamic site selection , 2002 .

[13]  Douglas M. Bates,et al.  Nonlinear Regression Analysis and Its Applications , 1988 .

[14]  Alexey Voinov,et al.  Optimization methodology for land use patterns : evaluation based on multiscale habitat pattern comparison , 2003 .

[15]  J. Woinarski,et al.  Historical changes in the bird fauna at Coomooboolaroo, northeastern Australia, from the early years of pastoral settlement (1873) to 1999 , 2004 .

[16]  John Bell,et al.  A review of methods for the assessment of prediction errors in conservation presence/absence models , 1997, Environmental Conservation.

[17]  A. Bennett,et al.  Properties of land mosaics: Implications for nature conservation in agricultural environments , 2006 .

[18]  Brian G. Wolff,et al.  Forecasting Agriculturally Driven Global Environmental Change , 2001, Science.

[19]  S. Sarkar,et al.  Systematic conservation planning , 2000, Nature.

[20]  Kathryn E. Freemark,et al.  Birds on organic and conventional farms in Ontario: partitioning effects of habitat and practices on species composition and abundance , 2001 .

[21]  Fritz M. Roka,et al.  Evaluating Costs of Conservation , 1999 .

[22]  W. Parton,et al.  Agricultural intensification and ecosystem properties. , 1997, Science.