Biodiversity Conservation in Protected Areas: Policy Successes and Failures

Abstract

Traditional agro-ecosystems—landscapes shaped by centuries of human cultivation and pastoralism—harbor remarkable levels of biodiversity, often equaling or surpassing nearby formally protected areas. Yet conservation strategies have historically focused on parks and reserves, overlooking the critical contribution of working landscapes. This paper synthesizes global evidence on how traditional farming and pastoral practices maintain genetic, species, and ecosystem diversity outside protected areas. Drawing on case studies from Mediterranean dehesas, Andean terraces, Southeast Asian swidden fields, African pastoral savannas, and agroforestry systems, we identify key ecological processes and social institutions that underpin biodiversity conservation. We review threats posed by policy neglect, market pressures, and tenure insecurity, and examine policy frameworks at local, national, and international levels for integrating traditional agro-ecosystems into conservation planning. Finally, we propose an adaptive governance framework that embeds traditional land-use practices within broader biodiversity strategies, ensuring ecological resilience, cultural continuity, and local livelihoods.