translate English to French: In addition, numerous exotic species of grasses, again from agricultural seed stock, have migrated into the grasslands of FPAWs, reducing habitat quality and quantity and diminishing native biodiversity.
De plus, de nombreuses espÃ¨ces exotiques de graminÃ©es, provenant encore de stocks de semences agricoles, ont migrÃ© vers les terres herbeuses des APFES, diminuant la qualitÃ© et la quantitÃ© de l'habitat ainsi que la biodiversitÃ© indigÃ¨ne.