Residential and commercial development, agriculture, aquaculture, and biological resource use (e.g. logging and wood harvesting) are documented ecosystem stressors for Odoranna graminea. Research on closely related species Odorrana morafkai in the Viatnamese Langbian plateau suggests a decrease in population density in highly-disturbed sites. In both moderately-disturbed and non-disturbed sites, no such population density decrease was observed. There was no elucidated relationship between diet composition and habitat disturbance. Prey availability did not differ significantly in sites exhibiting various levels of habitat disturbance, suggesting that factors besides prey availability contribute to the gradient in population density. Conservation efforts There has been no population monitoring or conservation effort specific to Odorranna graminea. Conservation efforts are in progress for certain endangered Odorrana species in order to preserve genetic diversity in a rapidly diminishing gene pool. A 2011 study on the highly-endangered Odorrana ishikawae presented a method of strategic artificial insemination of a parent generation, then natural mating in subsequent generations. Researchers struggled with yield, with less than 50% of inseminated eggs surviving to metamorphosis. However, it presents a promising strategy of manual intervention that could boost local diversity in other species of endangered Odorrana. Diet Information on the O. graminea diet is lacking. However, studies of the related Odorraa morafkai in Southern Vietnam suggest a diverse diet of both aquatic and terrestrial prey. 90% of O. morafkai prey consists of insects, especially beetles. Distribution of prey type varied with season, likely due to increased range of access during the rainy versus dry season. Vocalizations Odorrana graminea has a large repertoire of calls. They are highly variable both between and within individuals. Odorrana graminea has six basic types of calls with variation within each category: a. short tonal call (dominant type), b. long tonal call, c. multi-note calls, d. tonal calls with shallow or no frequency modulation, e. narrow-band call, and f. staccato call. All except for narrow-band and staccato contain ultrasonic frequencies (20 kHz or higher). Narrow-band and staccato calls are specifically used for short-range communication. Ultrasonic characteristics Male Odorrana graminea exhibit a wide variety of ultrasonic harmonics (>20 kHz), and is one of few non-mammalian vertebrate species able to detect this frequency range. Huia cavitympanum, Odorrana graminea, and O. graminea’s close relative Odorrana tormota are the only known frog species able to detect ultrasonic waves. A thin tympanic membrane shared by O. tormota and O. graminea may be involved in this feat. Interestingly,