Marxan is software that delivers decision support for conservation planning.
It was designed to help inform the selection of new conservation areas for minimal cost, facilitating the exploration of trade-offs between conservation and socio-economic objectives. Marxan can help decision makers set priorities for conservation action by highlighting those places that are likely to be important inclusions in an efficient reserve network. Marxan can also be employed as a tool for evaluating how well existing reserve networks achieve the goals of representativeness and comprehensiveness.
Marxan is the most widely used conservation planning tool in the world and is used by more than 7000 users in over 100 countries worldwide. The software has contributed to several major conservation projects; it underpinned the rezoning of the Great Barrier Reef Marine Park in Australia and informed the design of marine protected areas for the Channel Islands in California.
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