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https://www.readbyqxmd.com/read/28610170/integration-of-molecular-bioacoustical-and-morphological-data-reveals-two-new-cryptic-species-of-i-pelodytes-i-anura-pelodytidae-from-the-iberian-peninsula
#1
Jesús Díaz-Rodríguez, Marcelo Gehara, Rafael Márquez, Miguel Vences, Helena Gonçalves, Fernando Sequeira, Iñigo Martínez-Solano, Miguel Tejedo
Parsley frogs (Pelodytes) comprise the only genus in the family Pelodytidae, an ancient anuran lineage that split from their closest relatives over 140 million years ago. Pelodytes is a Palearctic group restricted to Western Eurasia including three extant species: the eastern species P. caucasicus, endemic to the Caucasus area, and two closely related species inhabiting Western Europe: the Iberian endemic P. ibericus and the more widespread P. punctatus. Previous studies based on mitochondrial and nuclear DNA markers have revealed the existence of two additional lineages of Parsley frogs in the Iberian Peninsula, which have been flagged as candidate species...
March 13, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610096/the-genus-i-phlesirtes-i-bolivar-1922-orthoptera-tettigoniidae-conocephalinae-conocephalini-karniellina-a-review-of-the-genus-with-data-on-its-bioacoustics-and-the-description-of-new-species
#2
Claudia Hemp, Klaus-Gerhard Heller
Species of the genus Phlesirtes are reviewed in this paper and 16 new species described. A key is provided to the species of Phlesirtes. Among the subtribe Karniellina of Conocephalini members of the genus Phlesirtes occupy habitats of montane to afroalpine grasslands in East Africa. All recorded species produced long-lasting, trill-like calling songs, consisting of sequences of continuously repeated syllables or syllable pairs with the peak of the carrier frequency in the low ultrasound.
March 22, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609991/the-use-of-bioacoustics-in-anuran-taxonomy-theory-terminology-methods-and-recommendations-for-best-practice
#3
Jörn Köhler, Martin Jansen, Ariel Rodríguez, Philippe J R Kok, Luís Felipe Toledo, Mike Emmrich, Frank Glaw, Célio F B Haddad, Mark-Oliver Rödel, Miguel Vences
Vocalizations of anuran amphibians have received much attention in studies of behavioral ecology and physiology, but also provide informative characters for identifying and delimiting species. We here review the terminology and variation of frog calls from a perspective of integrative taxonomy, and provide hands-on protocols for recording, analyzing, comparing, interpreting and describing these sounds. Our focus is on advertisement calls, which serve as premating isolation mechanisms and, therefore, convey important taxonomic information...
April 11, 2017: Zootaxa
https://www.readbyqxmd.com/read/28599521/using-nonlinear-time-warping-to-estimate-north-pacific-right-whale-calling-depths-in-the-bering-sea
#4
Aaron Thode, Julien Bonnel, Margaux Thieury, Aileen Fagan, Chris Verlinden, Dana Wright, Catherine Berchok, Jessica Crance
Calling depth distributions are estimated for two types of calls produced by critically endangered eastern North Pacific right whales (NPRWs) in the Bering Sea, using passive acoustic data collected with bottom-mounted hydrophone recorders. Nonlinear time resampling of 12 NPRW "upcalls" and 20 "gunshots" recorded in a critical NPRW habitat isolated individual normal mode arrivals from each call. The relative modal arrival times permitted range estimates between 1 and 40 km, while the relative modal amplitudes permitted call depth estimates, provided that environmental inversions were obtained from high signal-to-noise ratio calls...
May 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28599517/acoustical-standards-news
#5
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...
May 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28589845/deep-phylogeographic-breaks-in-magpie-pica-pica-across-the-holarctic-concordance-with-bioacoustics-and-phenotypes
#6
Alexey P Kryukov, Liudmila N Spiridonova, Sayaka Mori, Vladimir Yu Arkhipov, Yaroslav A Red'kin, Oleg A Goroshko, Evgeny G Lobkov, Elisabeth Haring
We examined sequences of the mitochondrial control region in magpies (Pica pica) from the entire distribution range and found deep genetic splits into four major lineages: (1) group West (Europe-Siberia), (2) group East (southern Far East), (3) P. p. mauritanica (North Africa), and (4) P. p. hudsonia (North America). These lineages show a geographic pattern corresponding to known subspecies or subspecies groups. Genetic variation within the widely-distributed group West is low and neutrality tests supported a recent expansion scenario...
June 2017: Zoological Science
https://www.readbyqxmd.com/read/28586687/marine-bioacoustics
#7
John C Montgomery, Craig A Radford
The marine environment is the planet's largest, yet in many respects the least accessible. Our human sensory repertoire, with its emphasis on vision and air-adapted hearing, does not serve us well underwater. Underwater vision is often limited and as divers we find hearing of little, or no, use. Yet we know from the physics that underwater sound has properties well suited to serve as sensory and communication channels for suitably-adapted marine animals. The rapidly developing area of marine bioacoustics seeks to characterise underwater sound in relation to the acoustic capability of particular species (acoustic habitat), and discover the role of acoustics in the lives of marine animals (acoustic ecology) (Clarke et al...
June 5, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28501612/the-effects-of-pleistocene-climate-change-on-biotic-differentiation-in-a-montane-songbird-clade-from-wallacea
#8
Nathaniel S R Ng, Peter R Wilton, Dewi Malia Prawiradilaga, Ywee Chieh Tay, Mochamad Indrawan, Kritika M Garg, Frank E Rheindt
The role of Pleistocene Ice Age in tropical diversification is poorly understood, especially in archipelagos, in which glaciation-induced sea level fluctuations may lead to complicated changes in land distribution. To assess how Pleistocene land bridges may have facilitated gene flow in tropical archipelagos, we investigated patterns of diversification in the rarely-collected rusty-bellied fantail Rhipidura teysmanni (Passeriformes: Rhipiduridae) complex from Wallacea using a combination of bioacoustic traits and whole-genome sequencing methods (dd-RADSeq)...
May 10, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28480008/designing-better-frog-call-recognition-models
#9
Paul S Crump, Jeff Houlahan
Advances in bioacoustic technology, such as the use of automatic recording devices, allow wildlife monitoring at large spatial scales. However, such technology can produce enormous amounts of audio data that must be processed and analyzed. One potential solution to this problem is the use of automated sound recognition tools, but we lack a general framework for developing and validating these tools. Recognizers are computer models of an animal sound assembled from "training data" (i.e., actual samples of vocalizations)...
May 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28438699/cryptic-diversity-in-amazonian-frogs-integrative-taxonomy-of-the-genus-anomaloglossus-amphibia-anura-aromobatidae-reveals-a-unique-case-of-diversification-within-the-guiana-shield
#10
Jean-Pierre Vacher, Philippe J R Kok, Miguel T Rodrigues, Jucivaldo Dias Lima, Andy Lorenzini, Quentin Martinez, Manon Fallet, Elodie A Courtois, Michel Blanc, Philippe Gaucher, Maël Dewynter, Rawien Jairam, Paul Ouboter, Christophe Thébaud, Antoine Fouquet
Lack of resolution on species boundaries and distribution can hamper inferences in many fields of biology, notably biogeography and conservation biology. This is particularly true in megadiverse and under-surveyed regions such as Amazonia, where species richness remains vastly underestimated. Integrative approaches using a combination of phenotypic and molecular evidence have proved extremely successful in reducing knowledge gaps in species boundaries, especially in animal groups displaying high levels of cryptic diversity like amphibians...
April 21, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28393311/discrimination-of-acoustically-similar-conspecific-and-heterospecific-vocalizations-by-black-capped-chickadees-poecile-atricapillus
#11
Allison H Hahn, Kimberley A Campbell, Jenna V Congdon, John Hoang, Neil McMillan, Erin N Scully, Joshua J H Yong, Julie E Elie, Christopher B Sturdy
Chickadees produce a multi-note chick-a-dee call in multiple socially relevant contexts. One component of this call is the D note, which is a low-frequency and acoustically complex note with a harmonic-like structure. In the current study, we tested black-capped chickadees on a between-category operant discrimination task using vocalizations with acoustic structures similar to black-capped chickadee D notes, but produced by various songbird species, in order to examine the role that phylogenetic distance plays in acoustic perception of vocal signals...
July 2017: Animal Cognition
https://www.readbyqxmd.com/read/28376365/bioacoustic-enabled-patterning-of-human-ipsc-derived-cardiomyocytes-into-3d-cardiac-tissue
#12
Vahid Serpooshan, Pu Chen, Haodi Wu, Soah Lee, Arun Sharma, Daniel A Hu, Sneha Venkatraman, Adarsh Venkataraman Ganesan, Osman Berk Usta, Martin Yarmush, Fan Yang, Joseph C Wu, Utkan Demirci, Sean M Wu
The creation of physiologically-relevant human cardiac tissue with defined cell structure and function is essential for a wide variety of therapeutic, diagnostic, and drug screening applications. Here we report a new scalable method using Faraday waves to enable rapid aggregation of human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) into predefined 3D constructs. At packing densities that approximate native myocardium (10(8)-10(9) cells/ml), these hiPSC-CM-derived 3D tissues demonstrate significantly improved cell viability, metabolic activity, and intercellular connection when compared to constructs with random cell distribution...
July 2017: Biomaterials
https://www.readbyqxmd.com/read/28372054/acoustical-standards-news
#13
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 B. Stremmel.Comments are welcomed on all material in Acoustical Standards News...
March 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28289149/experimental-validation-of-the-tuneable-diaphragm-effect-in-modern-acoustic-stethoscopes
#14
Karolina M Nowak, Lukasz J Nowak
PURPOSE: The force with which the diaphragm chestpiece of a stethoscope is pressed against the body of a patient during an auscultation examination introduces the initial stress and deformation to the diaphragm and the underlying tissues, thus altering the acoustic parameters of the sound transmission path. If the examination is performed by an experienced physician, he will intuitively adjust the amount of the force in order to achieve the optimal sound quality. However, in case of becoming increasingly popular auto-diagnosis and telemedicine auscultation devices with no such feedback mechanisms, the question arises regarding the influence of the possible force mismatch on the parameters of the recorded signal...
March 13, 2017: Postgraduate Medical Journal
https://www.readbyqxmd.com/read/28264355/bioacoustic-analysis-in-i-scinax-i-i-hayii-i-barbour-1909-anura-hylidae-at-its-type-locality-in-petr%C3%A3-polis-rio-de-janeiro-brazil
#15
Lucas Rodrigo Dos Santos, Itamar Alves Martins
Scinax hayii was described in 1909 from the municipality of Petrópolis, State of Rio de Janeiro, Brazil. Morphological variation and advertisement calls have been previously reported for other populations across the species distribution (Lutz 1973; Heyer et al. 1990; Cardoso & Andrade 1991; Pombal et al. 1995; Magrini et al. 2011; Abrunhosa et al. 2014). However, no information on calls are available from specimens recorded at the type locality, preventing the correct characterization of the species (Magrini et al...
February 20, 2017: Zootaxa
https://www.readbyqxmd.com/read/28264277/new-species-of-i-endecous-i-grylloidea-phalangopsidae-luzarinae-from-the-igua%C3%A3-u-national-park-brazil-including-bioacoustics-cytogenetic-and-distribution-data
#16
Pedro G B Souza-Dias, Neucir Szinwelski, Marcos Fianco, Elliott Centeno DE Oliveira, Francisco DE A G DE Mello, Edison Zefa
In this study we describe two new species of cavicolous-straminicolous crickets for southern Brazil. Endecous chape n. sp. and E. naipi n. sp. are sympatric crickets that inhabit the Atlantic Semideciduous Forest of the Iguaçu National Park and adjacent areas. The descriptions were based on morphological characters, mainly from male genitalia and tegmina of adult males. Furthermore, we describe the chromosomes and the calling song of one of the new species, E. chape n. sp., presenting a discussion about the morphology of the phallic complex of Endecous and a distribution map for the species of the genus...
March 1, 2017: Zootaxa
https://www.readbyqxmd.com/read/28253667/reconstruction-of-the-forehead-acoustic-properties-in-an-indo-pacific-humpback-dolphin-sousa-chinensis-with-investigation-on-the-responses-of-soft-tissue-sound-velocity-to-temperature
#17
Zhongchang Song, Yu Zhang, Per Berggren, Chong Wei
Computed tomography (CT) imaging and ultrasound experimental measurements were combined to reconstruct the acoustic properties (density, velocity, and impedance) of the head from a deceased Indo-Pacific humpback dolphin (Sousa chinensis). The authors extracted 42 soft forehead tissue samples to estimate the sound velocity and density properties at room temperature, 25.0  °C. Hounsfield Units (HUs) of the samples were read from CT scans. Linear relationships between the tissues' HUs and velocity, and HUs and density were revealed through regression analyses...
February 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28248998/systematics-of-the-dendropsophus-leucophyllatus-species-complex-anura-hylidae-cryptic-diversity-and-the-description-of-two-new-species
#18
Marcel A Caminer, Borja Milá, Martin Jansen, Antoine Fouquet, Pablo J Venegas, Germán Chávez, Stephen C Lougheed, Santiago R Ron
Genetic data in studies of systematics of Amazonian amphibians frequently reveal that purportedly widespread single species in reality comprise species complexes. This means that real species richness may be significantly higher than current estimates. Here we combine genetic, morphological, and bioacoustic data to assess the phylogenetic relationships and species boundaries of two Amazonian species of the Dendropsophus leucophyllatus species group: D. leucophyllatus and D. triangulum. Our results uncovered the existence of five confirmed and four unconfirmed candidate species...
2017: PloS One
https://www.readbyqxmd.com/read/28243532/seven-new-species-of-night-frogs-anura-nyctibatrachidae-from-the-western-ghats-biodiversity-hotspot-of-india-with-remarkably-high-diversity-of-diminutive-forms
#19
Sonali Garg, Robin Suyesh, Sandeep Sukesan, S D Biju
The Night Frog genus Nyctibatrachus (Family Nyctibatrachidae) represents an endemic anuran lineage of the Western Ghats Biodiversity Hotspot, India. Until now, it included 28 recognised species, of which more than half were described recently over the last five years. Our amphibian explorations have further revealed the presence of undescribed species of Nights Frogs in the southern Western Ghats. Based on integrated molecular, morphological and bioacoustic evidence, seven new species are formally described here as Nyctibatrachus athirappillyensis sp...
2017: PeerJ
https://www.readbyqxmd.com/read/28187674/a-new-species-of-poison-dart-frog-anura-dendrobatidae-from-manu-province-amazon-region-of-southeastern-peru-with-notes-on-its-natural-history-bioacoustics-phylogenetics-and-recommended-conservation-status
#20
Shirley J Serrano-Rojas, Andrew Whitworth, Jaime Villacampa, Rudolf VON May, Roberto C Gutiérrez, José M Padial, Juan C Chaparro
We describe and name a new species of poison-dart frog from the Amazonian slopes of the Andes in Manu Province, Madre de Dios Department, Peru; specifically within the Amarakaeri Communal Reserve and the buffer zone of Manu National Park. Ameerega shihuemoy sp. nov. is supported by a unique combination of characters: black dorsum with cream to light orange dorsolateral lines, blue belly reticulated with black, and the lack of axillary, thigh and calf flash marks. Within Ameerega, it shares the general appearance of A...
January 16, 2017: Zootaxa
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