Networks of protected areas are one of the main strategies used to address the biodiversity crisis. These should encompass as many species and ecosystems as possible, particularly in territories with high biological diversity, such as the Spanish arid zones. We produce a priority ranking of the arid zones of south-east Spain according to the rarity and richness of their characteristic flora and the level of endangerment. The resulting hierarchy shows that optimal zones for the preservation of the flora are located outside the network of protected areas. In particular, it is important to extend the network and encourage the creation of microreserves in the depression of the River Guadiana Menor (Granada), where there is least protection. This river valley is a particularly important arid site because of its unique flora and fauna, and palaeontological and archaeological findings.

The processes that threaten 240 Indonesian threatened plants were identified and categorized based on a comprehensive review of the published literature and elicitation of information from experts. Intrinsic biological factors and habitat loss are the major causes of plant endangerment in Indonesia (affecting 83 and 82% of species respectively), followed by overexploitation (64%) and natural factors (6%). The dominant threats vary between major plant groups, with habitat loss being particularly important for palms and trees, and biological factors important for orchids. For all studied plant species three sets of inter-related threatening processes (threat syndromes) were identified that differed among the major plant groups. By identifying and evaluating the processes that threaten plants in Indonesia we provide knowledge to guide their future conservation.

The Falkland Islands are situated in the South Atlantic and have a native flora of 171 vascular plant species. Although a relatively high proportion of the native flora is of conservation concern, this is poorly recognized, both nationally and internationally. Typically, threatened species occur as only a few small, isolated populations, and they are facing increasing pressure from land-use change, particularly agricultural intensification. This paper presents the first national Red Data List for the Falkland Islands, and provides an overview of the 23 threatened plants of the archipelago as well as covering another 16 species of relevance to the national conservation strategy. This Red List provides an important first step towards the recognition and conservation of the threatened native flora of the Falkland Islands at both the national and international level.