02350nas a2200217   4500008004100000245008700041210006900128520165900197653001701856653001701873653001401890653001001904653001101914653001001925100002901935700002701964700002701991700002202018700002502040856006702065       2019                        eng d00aGaps in terrestrial soundscape research: it’s time to focus on tropical wildlife0 aGaps in terrestrial soundscape research it s time to focus on tr3 a<p>There has been a body of research examining the sounds produced in landscapes. These sounds are commonly defined as soundscapes, however, the term is often used in different contexts. To understand how the various meanings attributed to soundscapes, we identified how soundscapes are represented in the scientific literature and identified current knowledge gaps in soundscape research focusing on terrestrial environments. We conducted a quantitative review of published papers with the keyword soundscape available at Web of Science and Scopus databases. A total of 1,309 abstracts and a subset of about 5% (N=68) complete papers and reviews published from 1985 to 2017 were read and analysed, identifying types of sound, types of environment and focal species studied, as well as study regions and climates. By identifying the current focus of research, we also identified gaps and research opportunities. Research was biased towards temperate regions, terrestrial environments, and the impacts on humans in urban areas. Although most of the world&rsquo;s biodiversity is concentrated in tropical wilderness areas, these regions had fewer studies attributed to them. Given the importance of tropical landscapes for biodiversity conservation, we strongly suggest that more research should be undertaken in the tropics, with a particular focus on wildlife in these regions. Furthermore, soundscape research (methods and tools) should increasingly target the anthropogenic impacts on wildlife, including behavioural and physiological changes, alongside the current focus on human-sound interactions and the approach used by bioacoustics methods.</p>
10abioacoustics10agap analysis10alandscape10aNoise10areview10asound1 aScarpelli, Marina, D. A.1 aRibeiro, Milton, Cezar1 aTeixeira, Fernanda, Z.1 aYoung, Robert, J.1 aTeixeira, Camila, P.  uhttps://linkinghub.elsevier.com/retrieve/pii/S004896971935396301902nas a2200157   4500008004100000245006400041210006400105520136900169100002601538700002501564700002901589700002601618700002201644700002701666856005101693       2019                        eng d00aEffects of mining truck traffic on cricket calling activity0 aEffects of mining truck traffic on cricket calling activity3 a<p>Anthropogenic noise is a global pollutant and several studies have identified its impact on wildlife. This research shows how the noise produced by mining affects crickets&rsquo; acoustic communication. Two passive acoustic monitoring devices (SMII) were installed in a forest fragment located at 500 m from the Brucutu Mine in Brazil. Another two SMII were installed distant 2500 from the mine. The equipment was configured to record from 17:00 to 05:00 h during seven days in April 2013. The authors analyzed the spectral characteristics of acoustic activity of three species of crickets (Anaxipha sp., Gryllus sp., and a Podoscirtinae species) before, during, and after the passing of mine trucks. For comparison the authors analyzed the acoustic characteristics for Anaxipha sp. and Gryllus sp. found in the distant site. Results showed a calling interruption for all the species during truck transit. Gryllus sp. emitted calls with higher maximum frequencies, average power, and larger bandwidth in the site close to the mine. Podoscirtinae species emitted calls with lower minimum frequencies, higher average power, and large bandwidth in the close site. The authors show that insect acoustic behavior varies between areas with different levels of noise. The disruption of this behavior may have negative consequences for their reproductive success.</p>
1 aDuarte, Marina, H. L.1 aCaliari, Ernesto, P.1 aScarpelli, Marina, D. A.1 aLobregat, Gabriel, O.1 aYoung, Robert, J.1 aSousa-lima, Renata, S.  uhttp://asa.scitation.org/doi/10.1121/1.5119125