ecosystem. With relatively frequent check-ups the ARU's can monitor at all times and measure, for instance, the owls in spring and amphibians in a later season. They can determine when certain animals live in an ecosystem and when other animals take their place. Future bioacoustic monitoring could move into monitoring soundscapes and mapping habitats. Data processing can gather sounds from different sources for habitat monitoring to find soundscape changes. The physical qualities of sound can now identify the acoustic animal ecosystems as well. The detection of migrations, for example, can be found from this. The next step is for the acoustic indices to solve for the species that is at play for given sounds. Recording animal vocals is useful with an ARU as they are not encroaching and are able to retain information on animal movement and habitat patterns. Localization within a community can gather data on the density of animals as well as their return rates. Localization specializes in tracking smaller, more elusive animals. ARU's ability to detect vocalizations helps researchers to study the effects of vocal behavior on local ecosystems. Newer ARU's that can be attached to animals are able to decipher intentional noises from non intentional noises, allowing for less outlier data. References External links ARBIMON portable recorders & permanent recording stations---Sieve Analytics Automated Remote Biodiversity Monitoring Network (ARBIMON) Autonomous Recording Units---Cornell Laboratory of Ornithology Bioacoustics Research Program Bioacoustics technology aids ivory-bill search---Cornell Laboratory of Ornithology Bioacoustic Unit Passive Acoustic Monitoring—Gerry E. Studds Stellwagen Bank National Marine Sanctuary Autonomous Multichannel Acoustic Recorder (AMAR)---JASCO Applied Sciences microMARS Marine Acoustic Recorder System---Desert Star Systems Snap Acoustic Recorder---Loggerhead Instruments Digital audio recording