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https://www.readbyqxmd.com/read/27914425/acoustical-standards-news
#1
Neil B Stremmel, Christopher J Struck
American National Standards (ANSI Standards) developed by Accredited Standards Committees S1, S2, S3, S3/SC 1, and S12 in the areas of acoustics, mechanical vibration and shock, bioacoustics, animal bioacoustics, and noise, respectively, are published by the Acoustical Society of America (ASA). In addition to these standards, ASA publishes a catalog of Acoustical American National Standards. To receive a copy of the latest Standards catalog, please contact Neil Stremmel.Comments are welcomed on all material in Acoustical Standards News...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27908065/acoustical-standards-news
#2
Neil B Stremmel, Christopher J Struck
American National Standards (ANSI Standards) developed by Accredited Standards Committees S1, S2, S3, S3/SC 1, and S12 in the areas of acoustics, mechanical vibration and shock, bioacoustics, animal bioacoustics, and noise, respectively, are published by the Acoustical Society of America (ASA). In addition to these standards, ASA publishes a catalog of Acoustical American National Standards. To receive a copy of the latest Standards catalog, please contact Neil Stremmel.Comments are welcomed on all material in Acoustical Standards News...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27880836/towards-the-automatic-classification-of-avian-flight-calls-for-bioacoustic-monitoring
#3
Justin Salamon, Juan Pablo Bello, Andrew Farnsworth, Matt Robbins, Sara Keen, Holger Klinck, Steve Kelling
Automatic classification of animal vocalizations has great potential to enhance the monitoring of species movements and behaviors. This is particularly true for monitoring nocturnal bird migration, where automated classification of migrants' flight calls could yield new biological insights and conservation applications for birds that vocalize during migration. In this paper we investigate the automatic classification of bird species from flight calls, and in particular the relationship between two different problem formulations commonly found in the literature: classifying a short clip containing one of a fixed set of known species (N-class problem) and the continuous monitoring problem, the latter of which is relevant to migration monitoring...
2016: PloS One
https://www.readbyqxmd.com/read/27822756/the-time-scale-of-adaptation-in-tonal-sequence-processing-by-the-mouse-auditory-midbrain-neurons
#4
E S Malinina, M A Egorova, G D Khorunzhii, A G Akimov
The time course of poststimulatory adaptation of the inferior colliculus central nucleus (ICC) of CBB6F1 hybrid mice to sound sequences, specifically, series of four tonal stimuli presented at intervals of 0, 2, 4, 10, 20, 50, 100, 200, 500, 700, 1000, and 1500 ms were studied. Assessment of the adaptation of the entire neuronal population have shown that, at an interstimulus interval of 0-200 ms, the response to the first tone in a series is significantly stronger than those to the second to fourth tones, the strengths of the latter three responses not differing significantly from one another...
September 2016: Doklady Biological Sciences: Proceedings of the Academy of Sciences of the USSR, Biological Sciences Sections
https://www.readbyqxmd.com/read/27807249/singing-whales-generate-high-levels-of-particle-motion-implications-for-acoustic-communication-and-hearing
#5
T Aran Mooney, Maxwell B Kaplan, Marc O Lammers
Acoustic signals are fundamental to animal communication, and cetaceans are often considered bioacoustic specialists. Nearly all studies of their acoustic communication focus on sound pressure measurements, overlooking the particle motion components of their communication signals. Here we characterized the levels of acoustic particle velocity (and pressure) of song produced by humpback whales. We demonstrate that whales generate acoustic fields that include significant particle velocity components that are detectable over relatively long distances sufficient to play a role in acoustic communication...
November 2016: Biology Letters
https://www.readbyqxmd.com/read/27806089/high-species-richness-of-scinax-treefrogs-hylidae-in-a-threatened-amazonian-landscape-revealed-by-an-integrative-approach
#6
Miquéias Ferrão, Olavo Colatreli, Rafael de Fraga, Igor L Kaefer, Jiří Moravec, Albertina P Lima
Rising habitat loss is one of the main drivers of the global amphibian decline. Nevertheless, knowledge of amphibian diversity needed for effective habitat protection is still highly inadequate in remote tropical regions, the greater part of the Amazonia. In this study we integrated molecular, morphological and bioacoustic evidence to evaluate the species richness of the treefrogs genus Scinax over a 1000 km transect across rainforest of the Purus-Madeira interfluve, and along the east bank of the upper Madeira river, Brazilian Amazonia...
2016: PloS One
https://www.readbyqxmd.com/read/27547306/using-bioacoustics-to-examine-shifts-in-songbird-phenology
#7
Rachel T Buxton, Emma Brown, Lewis Sharman, Christine M Gabriele, Megan F McKenna
Monitoring patterns in biodiversity and phenology have become increasingly important given accelerating levels of anthropogenic change. Long-term monitoring programs have reported earlier occurrence of spring activity, reflecting species response to climate change. Although tracking shifts in spring migration represents a valuable approach to monitoring community-level consequences of climate change, robust long-term observations are challenging and costly. Audio recordings and metrics of bioacoustic activity could provide an effective method for monitoring changes in songbird activity and broader biotic interactions...
July 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/27475185/acoustical-standards-news
#8
Neil Stremmel, Christopher J Struck
American National Standards (ANSI Standards) developed by Accredited Standards Committees S1, S2, S3, S3/SC 1, and S12 in the areas of acoustics, mechanical vibration and shock, bioacoustics, animal bioacoustics, and noise, respectively, are published by the Acoustical Society of America (ASA). In addition to these standards, ASA publishes a catalog of Acoustical American National Standards. To receive a copy of the latest Standards catalog, please contact Neil Stremmel.Comments are welcomed on all material in Acoustical Standards News...
July 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27475166/whistle-characteristics-and-daytime-dive-behavior-in-pantropical-spotted-dolphins-stenella-attenuata-in-hawai-i-measured-using-digital-acoustic-recording-tags-dtags
#9
Tammy L Silva, T Aran Mooney, Laela S Sayigh, Peter L Tyack, Robin W Baird, Julie N Oswald
This study characterizes daytime acoustic and dive behavior of pantropical spotted dolphins (Stenella attenuata) in Hawai'i using 14.58 h of data collected from five deployments of digital acoustic recording tags (DTAG3) in 2013. For each tagged animal, the number of whistles, foraging buzzes, dive profiles, and dive statistics were calculated. Start, end, minimum, and maximum frequencies, number of inflection points and duration were measured from 746 whistles. Whistles ranged in frequency from 9.7 ± 2...
July 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27421565/integrating-multiple-evidences-in-taxonomy-species-diversity-and-phylogeny-of-mustached-bats-mormoopidae-pteronotus
#10
Ana Carolina Pavan, Gabriel Marroig
A phylogenetic systematic perspective is instrumental in recovering new species and their evolutionary relationships. The advent of new technologies for molecular and morphological data acquisition and analysis, allied to the integration of knowledge from different areas, such as ecology and population genetics, allows for the emergence of more rigorous, accurate and complete scientific hypothesis on species diversity. Mustached bats (genus Pteronotus) are a good model for the application of this integrative approach...
October 2016: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/27394575/designation-and-description-of-a-neotype-of-sclerophrys-maculata%C3%A2-hallowell-1854-and-reinstatement-of-s-pusilla-mertens-1937-amphibia-anura-bufonidae
#11
John C Poynton, Simon P Loader, Werner Conradie, Mark-Oliver Rödel, H Christoph Liedtke
Molecular analysis indicates that African material previously referred to Amietophrynus maculatus (Hallowell, 1854; now Sclerophrys maculata), is divisible into two distinct clades: a Western Clade from Cameroon westwards and an Eastern Clade from Central African Republic eastwards, and Uganda southwards to South Africa, extending to Angola-Namibia. Preliminary morphological and bioacoustic data support this division. The two clades are recognised here as two separate species. The Western species retains the name S...
2016: Zootaxa
https://www.readbyqxmd.com/read/27250180/acoustical-standards-news
#12
Susan B Blaeser, Christopher J Struck
American National Standards (ANSI Standards) developed by Accredited Standards Committees S1, S2, S3, S3/SC 1, and S12 in the areas of acoustics, mechanical vibration and shock, bioacoustics, animal bioacoustics, and noise, respectively, are published by the Acoustical Society of America (ASA).Comments are welcomed on all material in Acoustical Standards News.This Acoustical Standards News section in JASA, as well as the national catalog of Acoustical Standards, and other information on the Standards Program of the Acoustical Society of America, are available via the ASA home page: http://acousticalsociety...
May 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27233436/genome-wide-data-help-identify-an-avian-species-level-lineage-that-is-morphologically-and-vocally-cryptic
#13
Kritika M Garg, Robert Tizard, Nathaniel S R Ng, Emilie Cros, Ariya Dejtaradol, Balaji Chattopadhyay, Nila Pwint, Martin Päckert, Frank E Rheindt
Species identification has traditionally relied on morphology. However, morphological conservatism can lead to a high incidence of cryptic species, as characters other than morphological ones can be biologically important. In birds, the combined application of bioacoustic and molecular criteria has led to an avalanche of cryptic species discoveries over the last two decades in which findings of deep vocal differentiation have usually been corroborated by molecular data or vice versa. In this study, we use genome-wide DNA data to uncover an unusual case of cryptic speciation in two species within the South-east Asian Streak-eared Bulbul Pycnonotus blanfordi complex, in which both morphology and vocalizations have remained extremely similar...
September 2016: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/27167327/effects-of-group-density-hunting-and-temperature-on-the-singing-patterns-of-eastern-hoolock-gibbons-hoolock-leuconedys-in-gaoligongshan-southwest-china
#14
Long-Yun Yin, Han-Lan Fei, Gui-Shou Chen, Jia-Hua Li, Liang-Wei Cui, Peng-Fei Fan
Many non-human primates produce species-specific loud calls to communicate within and between groups over long distances. Understanding these calling patterns can provide insights into how individuals modify their behavior in response to environmental variables as well as help to design efficient bioacoustic survey techniques. Eastern hoolock gibbons in Gaoligongshan inhabit the coldest habitat of all gibbon populations, but both conservation and research efforts on this population have been minimal. We studied singing patterns of two habituated and two unhabituated groups at two sites in Gaoligongshan between July 2010 and June 2015...
August 2016: American Journal of Primatology
https://www.readbyqxmd.com/read/27144887/decoding-group-vocalizations-the-acoustic-energy-distribution-of-chorus-howls-is-useful-to-determine-wolf-reproduction
#15
Vicente Palacios, José Vicente López-Bao, Luis Llaneza, Carlos Fernández, Enrique Font
Population monitoring is crucial for wildlife management and conservation. In the last few decades, wildlife researchers have increasingly applied bioacoustics tools to obtain information on several essential ecological parameters, such as distribution and abundance. One such application involves wolves (Canis lupus). These canids respond to simulated howls by emitting group vocalizations known as chorus howls. These responses to simulated howls reveal the presence of wolf litters during the breeding period and are therefore often used to determine the status of wolf populations...
2016: PloS One
https://www.readbyqxmd.com/read/27036268/acoustical-standards-news
#16
Susan B Blaeser, Christopher J Struck
American National Standards (ANSI Standards) developed by Accredited Standards Committees S1, S2, S3, S3/SC 1, and S12 in the areas of acoustics, mechanical vibration and shock, bioacoustics, animal bioacoustics, and noise, respectively, are published by the Acoustical Society of America (ASA). In addition to these standards, ASA publishes a catalog of Acoustical American National Standards. To receive a copy of the latest Standards catalog, please contact Susan B. Blaeser.Comments are welcomed on all material in Acoustical Standards News...
March 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/26986319/quantifying-group-specificity-of-animal-vocalizations-without-specific-sender-information
#17
Heike Vester, Kurt Hammerschmidt, Marc Timme, Sarah Hallerberg
Recordings of animal vocalization can lack information about sender and context. This is often the case in studies on marine mammals or in the increasing number of automated bioacoustics monitorings. Here, we develop a framework to estimate group specificity without specific sender information. We introduce and apply a bag-of-calls-and-coefficients approach (BOCCA) to study ensembles of cepstral coefficients calculated from vocalization signals recorded from a given animal group. Comparing distributions of such ensembles of coefficients by computing relative entropies reveals group specific differences...
February 2016: Physical Review. E
https://www.readbyqxmd.com/read/26960208/microhyla-laterite-sp-nov-a-new-species-of-microhyla-tschudi-1838-amphibia-anura-microhylidae-from-a-laterite-rock-formation-in-south-west-india
#18
K S Seshadri, Ramit Singal, H Priti, G Ravikanth, M K Vidisha, S Saurabh, M Pratik, Kotambylu Vasudeva Gururaja
In recent times, several new species of amphibians have been described from India. Many of these discoveries are from biodiversity hotspots or from within protected areas. We undertook amphibian surveys in human dominated landscapes outside of protected areas in south western region of India between years 2013-2015. We encountered a new species of Microhyla which is described here as Microhyla laterite sp. nov. It was delimited using molecular, morphometric and bioacoustics comparisons. Microhyla laterite sp...
2016: PloS One
https://www.readbyqxmd.com/read/26934213/integrative-taxonomic-approach-for-describing-a-new-cryptic-species-of-bush-frog-raorchestes-anura-rhacophoridae-from-the-western-ghats-india
#19
H Priti, Rekha Sarma Roshmi, Badrinath Ramya, H S Sudhira, G Ravikanth, Neelavara Anantharam Aravind, Kotambylu Vasudeva Gururaja
A new cryptic species of bush frog Raorchestes honnametti sp. nov. is described from the south-eastern part of the Western Ghats, India. This newly described species belongs to the Charius clade and is morphologically similar to other clade members--R. charius and R. griet. Therefore, an integrative taxonomic approach based on molecular and bioacoustic analysis along with morphology was used to delimit the new species. Raorchestes honnametti sp. nov., is currently known only from Biligiri Rangaswamy Temple Tiger Reserve, a part of Biligiri Rangaswamy horst mountain range (a mountain formed due movement of two faults) formed during the Late Quaternary period (1...
2016: PloS One
https://www.readbyqxmd.com/read/26856075/-neurophysiologic-approaches-to-the-study-of-functional-role-of-the-auditory-critical-bands
#20
E S Malinina, M E Egorova, A G Akimov
Neurophysiologic data on participation of the critical band mechanism in sound localization and recognition are presented. Single unit activity was recorded extracellularly-in the central nucleus of inferior colliculus of the house mouse females. First, we studied sensitivity of neurons to acoustic signals simulating spectral localization cues (notch noise with different bandwidths). Comparison of neuron responses depending on notch bandwidths revealed that 1/3 octave notch bandwidths was optimal for the analysis of the localization-significant spectral information...
September 2015: Zhurnal Evoliutsionnoĭ Biokhimii i Fiziologii
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