@article {57893,
	title = {A roadmap for survey designs in terrestrial acoustic monitoring},
	year = {2019},
	abstract = {<p>Passive acoustic monitoring (PAM) is increasingly popular in ecological research and conservation programs, with high-volume and long-term data collection provided by automatized acoustic sensors offering unprecedented opportunities for faunal and ecosystem surveys. Practitioners and newcomers interested in PAM can easily find technical specifications for acoustic sensors and microphones, but guidelines on how to plan survey designs are largely scattered over the literature. Here, we (i) review spatial and temporal sampling designs used in passive acoustic monitoring, (ii) provide a synthesis of the crucial aspects of PAM survey design and (iii) propose a workflow to optimize recording autonomy and recording schedules. From 1992 to 2018, most of the 460 studies applying PAM in terrestrial environments have used a single recor- der per site, covered broad spatial scales and rotated recorders between sites to optimize sampling effort. Continuous recording of specific diel periods was the main recording procedure used. When recording schedules were applied, a larger number of recordings per hour was generally associated with a smaller recording length. For PAM survey design, we proposed to (i) estimate mem- ory/battery autonomy and associated costs, (ii) assess signal detectability to optimize recording schedules in order to recover maximum biological infor- mation and (iii) evaluate cost-benefit scenarios between sampling effort and budget to address potential biases from a given PAM survey design. Establish- ing standards for PAM data collection will improve the quality of inferences over the broad scope of PAM research and promote essential standardization for cross-scale research to understand long-term biodiversity trends in a changing world.</p>
},
	keywords = {acoustic monitoring, acoustic recorders, recording schedules, recording settings, temporal sampling, wildlife survey},
	doi = {10.1002/rse2.131},
	url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/rse2.131https://onlinelibrary.wiley.com/doi/pdf/10.1002/rse2.131https://onlinelibrary.wiley.com/doi/pdf/10.1002/rse2.131https://onlinelibrary.wiley.com/doi/full-xml/10.1002/rse2.131},
	author = {Sugai, Larissa Sayuri Moreira and Desjonqu{\`e}res, Camille and Silva, Thiago Sanna Freire and Llusia, Diego},
	editor = {Pettorelli, Nathalie and Lecours, Vincent}
}
@article {53386,
	title = {Terrestrial Passive Acoustic Monitoring: Review and Perspectives},
	journal = {BioScience},
	year = {2018},
	month = {May-11-2020},
	abstract = {<p>Passive acoustic monitoring (PAM) is quickly gaining ground in ecological research, following global trends toward automated data collection and big data. Using unattended sound recording, PAM provides tools for long-term and cost-effective biodiversity monitoring. Still, the extent of the potential of this emerging method in terrestrial ecology is unknown. To quantify its application and guide future studies, we conducted a systematic review of terrestrial PAM, covering 460 articles published in 122 journals (1992\&ndash;2018). During this period, PAM-related studies showed above a fifteenfold rise in publication and covered three developing phases: establishment, expansion, and consolidation. Overall, the research was mostly focused on bats (50\%), occurred in northern temperate regions (65\%), addressed activity patterns (25\%), recorded at night (37\%), used nonprogrammable recorders (61\%), and performed manual acoustic analysis (58\%), although their applications continue to diversify. The future agenda should include addressing the development of standardized procedures, automated analysis, and global initiatives to expand PAM to multiple taxa and regions.</p>
},
	issn = {0006-3568},
	doi = {10.1093/biosci/biy147},
	url = {https://academic.oup.com/bioscience/advance-article/doi/10.1093/biosci/biy147/5193506},
	author = {Sugai, Larissa Sayuri Moreira and Silva, Thiago Sanna Freire and Ribeiro, Jos{\'e} Wagner and Llusia, Diego}
}
