. >> when we first met, urban design professors evan jones and margaret akira, they were working with the presidio trust to transform a newly created tidal marsh near crissy field, installing experimental structures designed at the california college of the arts to provide a home and breeding ground for native bay oysters. and jones says the experience generated at the presidio can often be applied around the bay. >> and i think you can really get a lot of mileage out of the research work that happens there, in terms of how we might start to rethink some of our industrial areas. and the environmental transformation at the presidio goes well beyond the beaches and dunes at crissy field. presidio ecologists are literally transforming a stands of non-native trees, originally planted as camouflage by the army into a healthy forest supporting native species. everything from coyotes that birth their young, to native frogs that had all but vanished from the bay. the work is also allowing the presidio trust to partner with local nonprofits. we followed along as teams reintroduced variations o

. >> when we first met urban design professors evan jones and margaret ikeda, they were working with the presidio trust to transform a newly created tidal marsh near crissy field, installing experimental structures designed at the california college of the arts to provide a home and breeding ground for native bay oysters. and jones says the experience generated at the presidio can often be applied around the bay. >> and i think you can really get a lot of mileage out of the research work that happens there, in terms of how we might start to rethink some of our industrial areas. >> and the environmental transformation at the presidio goes well beyond the beaches and dunes at crissy field. presidio ecologists are literally transforming a stands of non-native trees, originally planted as camouflage by the army into a healthy forest supporting native species. everything from coyotes that birth their young, to native frogs that had all but vanished from the bay. the work is also allowing the presidio trust to partner with local nonprofits. we followed along as teams reintroduced variation