Implementation of the Periodic Review requirement in the ArabMAB network: Lessons for improving Biosphere Reserve evaluation

Biosphere Reserves have been managed worldwide to demonstrate three integrated functions within their triple zonation scheme: conservation of natural and cultural values, logistic support and sustainable socio-economic development. Evaluation of these functions is formalised within the Periodic Review process whereby reports are submitted every ten years with the primary intent to evaluate the effectiveness of Biosphere Reserve concept implementation locally. However, the effectiveness of the Periodic Review as an evaluation system is poorly understood, and studies that document its regional implementation are lacking. Here we present the first regional review of the Periodic Review evaluation within the ArabMAB network. Using a mixed methods approach, we assess compliance with the Periodic Review report submission requirement, and quality of Periodic Review reports based on a novel approach. Our results show that the Periodic Review is characterised by significant delays (mean = 7.6 years), with five of 27 reports missing. Report quality for seven available reports varies, with most rating as low to average quality, and many lacking essential elements to assess Biosphere Reserve concept implementation as defined by Article 4 of the Statutory Framework of the World Network of Biosphere Reserves. We discuss factors that hinder successful compliance with the Periodic Review requirement regionally, and offer recommendations for improving Biosphere Reserve evaluation.