@article {57931, title = {It{\textquoteright}s time to listen: there is much to be learned from the sounds of tropical ecosystems}, year = {2018}, abstract = {

Knowledge that can be gained from acoustic data collection in tropical ecosystems is low-hanging fruit. There is every reason to recordand with every day, there are fewer excuses not to do it. In recent years, the cost of acoustic recorders has decreased substantially(some can be purchased for under US$50, e.g., Hillet\  al.2018) and the technology needed to store and analyze acoustic data is contin-uously improving (e.g., Corrada Bravoet\  al.2017, Xieet\  al.2017). Soundscape recordings provide a permanent record of a site at agiven time and contain a wealth of invaluable and irreplaceable information. Although challenges remain, failure to collect acoustic datanow in tropical ecosystems would represent a failure to future generations of tropical researchers and the citizens that benefit fromecological research. In this commentary, we (1) argue for the need to increase acoustic monitoring in tropical systems; (2) describe thetypes of research questions and conservation issues that can be addressed with passive acoustic monitoring (PAM) using both short-and long-term data in terrestrial and freshwater habitats; and (3) present an initial plan for establishing a global repository of tropical recordings.

}, keywords = {conservation technology, ecoacoustics, passive acoustic monitoring, Soundscape}, doi = {10.1111/btp.12593}, url = {http://doi.wiley.com/10.1111/btp.12593}, author = {Jessica L. Deichmann and Acevedo-Charry, Orlando and Barclay, Leah and Burivalova, Zuzana and Campos-Cerqueira, Marconi and d{\textquoteright}Horta, Fernando and Game, Edward T. and Gottesman, Benjamin L. and Hart, Patrick J. and Kalan, Ammie K. and Linke, Simon and Nascimento, Leandro Do and Bryan C. Pijanowski and Staaterman, Erica and T. Mitchell Aide} } @article {52799, title = {Freshwater ecoacoustics as a tool for continuous ecosystem monitoring}, journal = {Frontiers in Ecology and the Environment}, year = {2018}, month = {03/2018}, abstract = {

Abstract
Passive acoustic monitoring is gaining popularity in ecology as a practical and non-invasive approach to surveying ecosystems. This technique is increasingly being used to monitor terrestrial systems, particularly bird populations, given that it can help to track temporal dynamics of populations and ecosystem health without the need for expensive resampling. We suggest that underwater acoustic monitoring presents a viable, non-invasive, and largely unexplored approach to monitoring freshwater ecosystems, yielding information about three key ecological elements of aquatic environments \– (1) fishes, (2) macroinvertebrates, and (3) physicochemical processes \– as well as providing data on anthropogenic noise levels. We survey the literature on this approach, which is substantial but scattered across disciplines, and call for more cross-disciplinary work on recording and analysis techniques. We also discuss technical issues and knowledge gaps, including background noise, spatiotemporal variation, and the need for centralized reference collection repositories. These challenges need to be overcome before the full potential of passive acoustics in dynamic detection of biophysical processes can be realized and used to inform conservation practitioners and managers.

}, keywords = {anthropogenic noise, fishes, freshwater, macroinvertebrates, monitoring, physicochemical}, doi = {10.1002/fee.1779}, url = {https://doi.org/10.1002/fee.1779}, author = {Linke, Simon and Gifford, Toby and Desjonqu{\`e}res, Camille and Tonolla, Diego and Aubin, Thierry and Barclay, Leah and Karaconstantis, Chris and Kennard, Mark J. and Rybak, Fanny and Sueur, Jerome} }