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To evaluate progress on political biodiversity objectives, biodiversity monitoring provides information on whether intended results are being achieved. Despite scientific proof that monitoring and evaluation increase the (cost) efficiency of policy measures, cost estimates for monitoring schemes are seldom available, hampering their inclusion in policy programme budgets. Empirical data collected from 12 case studies across Europe were used in a power analysis to estimate the number of farms that would need to be sampled per major farm type to detect changes in species richness over time for four taxa (vascular plants, earthworms, spiders and bees). A sampling design was developed to allocate spatially, across Europe, the farms that should be sampled. Cost estimates are provided for nine monitoring scenarios with differing robustness for detecting temporal changes in species numbers. These cost estimates are compared with the Common Agricultural Policy (CAP) budget (2014-2020) to determine the budget allocation required for the proposed farmland biodiversity monitoring. Results show that the bee indicator requires the highest number of farms to be sampled and the vascular plant indicator the lowest. The costs for the nine farmland biodiversity monitoring scenarios corresponded to 0·01%-0·74% of the total CAP budget and to 0·04%-2·48% of the CAP budget specifically allocated to environmental targets. Synthesis and applications. The results of the cost scenarios demonstrate that, based on the taxa and methods used in this study, a Europe-wide farmland biodiversity monitoring scheme would require a modest share of the Common Agricultural Policy budget. The monitoring scenarios are flexible and can be adapted or complemented with alternate data collection options (e.g. at national scale or voluntary efforts), data mobilization, data integration or modelling efforts.
|Journal||Journal of Applied Ecology|
|Publication status||Published - 2016|
- Agri-environment schemes
- Biodiversity indicator
- Common agricultural policy
- Empirical data
- Farming system
- Power analysis
- Sampling design
- Species trend
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Data from: How much would it cost to monitor farmland biodiversity in Europe?
Geijzendorffer, I. R. (Creator), Targetti, S. (Creator), Schneider, M. K. (Creator), Brus, D. (Creator), Jongman, R. H. G. (Creator), Knotters, M. (Creator), Bogers, M. (Creator) & Staritsky, I. (Creator), Wageningen University & Research, 6 Nov 2015
- 1 Finished
BIOBIO: Indicators for biodiversity in organic and low-input farming systems
1/03/09 → 31/08/12
Project: EU research project