@article {57981, title = {Six steps towards operationalising freshwater ecoacoustic monitoring}, journal = {Freshwater Biology}, volume = {65}, year = {2020}, month = {Feb-01-2021}, pages = {1 - 6}, abstract = {

1. Applications in bioacoustics and its sister discipline ecoacoustics have increased exponentially over the last decade. However, despite knowledge about aquatic bioacoustics dating back to the times of Aristotle and a vast amount of background literature to draw upon, freshwater applications of ecoacoustics have been lagging to date.

2.In this special issue, we present nine studies that deal with underwater acoustics, plus three acoustic studies on water-dependent birds and frogs. Topics include automatic detection of freshwater organisms by their calls, quantifying habitat change by analysing entire soundscapes, and detecting change in behaviour when organisms are exposed to noise.

3.We identify six major challenges and review progress through this special issue. Challenges include characterisation of sounds, accessibility of archived sounds as well as improving automated analysis methods. Study design considerations include characterisation analysis challenges of spatial and temporal variation. The final key challenge is the so far largely understudied link between ecological condition and underwater sound.

4.We hope that this special issue will raise awareness about underwater soundscapes as a survey tool. With a diverse array of field and analysis tools, this issue can act as a manual for future monitoring applications that will hopefully foster further advances in the field.

}, keywords = {ecoacoustics, Ecological Monitoring, freshwater, passive acoustics, underwater sounds}, issn = {0046-5070}, doi = {10.1111/fwb.v65.110.1111/fwb.13426}, url = {https://onlinelibrary.wiley.com/toc/13652427/65/1}, author = {Linke, Simon and Gifford, Toby and Desjonqu{\`e}res, Camille} } @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} }