Now showing items 1-16 of 16

    • Acoustic and foraging behavior of a Baird’s beaked whale, Berardius bairdii, exposed to simulated sonar 

      Stimpert, Alison; De Ruiter, Stacy Lynn; Southall, Brandon; Moretti, David; Falcone, Erin; Goldbogen, Jeremy; Friedlaender, Ari; Schorr, Greg; Calambokidis, John (2014-11-13) - Journal article
      Beaked whales are hypothesized to be particularly sensitive to anthropogenic noise, based on previous strandings and limited experimental and observational data. However, few species have been studied in detail. We describe ...
    • Beaked whales respond to simulated and actual navy sonar 

      Tyack, Peter L.; Zimmer, Walter M. X.; Moretti, David; Southall, Brandon L.; Claridge, Diane E.; Durban, John W.; Clark, Christopher W.; D'Amico, Angela; DiMarzio, Nancy; Jarvis, Susan; McCarthy, Elena; Morrissey, Ronald; Ward, Jessica; Boyd, Ian L. (2011-03-14) - Journal article
      Beaked whales have mass stranded during some naval sonar exercises, but the cause is unknown. They are difficult to sight but can reliably be detected by listening for echolocation clicks produced during deep foraging ...
    • Behavioral responses of satellite tracked Blainville's beaked whales (Mesoplodon densirostris) to mid-frequency active sonar 

      Joyce, Trevor W.; Durban, John W.; Claridge, Diane E.; Dunn, Charlotte A.; Hickmott, Leigh S.; Fearnbach, Holly; Dolan, Karin; Moretti, David (2019-06-17) - Journal article
      The vulnerability of beaked whales (Family: Ziphiidae) to intense sound exposure has led to interest in their behavioral responses to mid‐frequency active sonar (MFAS, 3–8 kHz). Here we present satellite‐transmitting tag ...
    • Density estimation implications of increasing ambient noise on beaked whale click detection and classification 

      Marques, Tiago A.; Ward, Jessica; Jarvis, Susan; Moretti, David; Morrissey, Ronald; DiMarzio, Nancy; Thomas, Len (University of St Andrews, 2010) - Report
      Acoustic based density estimates are being increasingly used. Usually density estimation methods require one to evaluate the effective survey area of the acoustic sensors, or equivalently estimate the mean detection probability ...
    • Effective beam pattern of the Blainville's beaked whale (Mesoplodon densirostris) and implications for passive acoustic monitoring 

      Shaffer, Jessica Ward; Moretti, David; Jarvis, Susan; Tyack, Peter; Johnson, Mark (2013-03) - Journal article
      The presence of beaked whales in mass-strandings coincident with navy maneuvers has prompted the development of methods to detect these cryptic animals. Blainville's beaked whales, Mesoplodon densirostris, produce distinctive ...
    • Estimating animal population density using passive acoustics 

      Marques, Tiago A.; Thomas, Len; Martin, Stephen; Mellinger, David; Ward, Jessica; Moretti, David; Harris, Danielle Veronica; Tyack, Peter Lloyd (2013-05) - Journal article
      Reliable estimation of the size or density of wild animal populations is very important for effective wildlife management, conservation and ecology. Currently, the most widely used methods for obtaining such estimates ...
    • Evaluating the effect of measurement error in pairs of 3D bearings in point transect sampling estimates of density 

      Marques, Tiago A.; Duarte, Pedro; Peixe, Telmo; Moretti, David; Thomas, Len (University of St Andrews, 2018-03-27) - Report
    • First direct measurements of behavioural responses by Cuvier's beaked whales to mid-frequency active sonar 

      De Ruiter, Stacy Lynn; Southall, Brandon L.; Calambokidis, John; Zimmer, Walter M. X.; Sadykova, Dinara; Falcone, Erin A.; Friedlaender, Ari S.; Joseph, John E.; Moretti, David; Schorr, Gregory S.; Thomas, Len; Tyack, Peter Lloyd (2013) - Journal article
      Most marine mammal­ strandings coincident with naval sonar exercises have involved Cuvier's beaked whales (Ziphius cavirostris). We recorded animal movement and acoustic data on two tagged Ziphius and obtained the first ...
    • Insights into Blainville's beaked whale (Mesoplodon densirostris) echolocation ontogeny from recordings of mother-calf pairs 

      Dunn, Charlotte; Claridge, Diane; Durban, John; Shaffer, Jessica; Moretti, David; Tyack, Peter; Rendell, Luke (2017-01) - Journal article
    • An International Quiet Ocean Experiment 

      Boyd, Ian L.; Frisk, George; Urban, Ed; Tyack, Peter; Ausubel, Jesse; Seeyave, Sophie; Cato, Doug; Southall, Brandon; Weise, Michael; Andrew, Rex; Akamatsu, Tomonari; Dekeling, Rene; Erbe, Christine; Farmer, David; Gentry, Roger; Gross, Tom; Hawkins, Anthony; Li, Fenghua; Metcalf, Kathy; Miller, James H.; Moretti, David; Rodrigo, Cristian; Shinke, Tomio (2011-06) - Journal article
      The effect of noise on marine life is one of the big unknowns of current marine science. Considerable evidence exists that the human contribution to ocean noise has increased during the past few decades: human noise has ...
    • Procedure description : using AUTEC’s hydrophones surrounding a DTAGed whale to obtain localizations 

      Marques, Tiago A.; Shaeffer, Jessica; Moretti, David; Thomas, Len (University of St Andrews, 2015) - Report
    • A risk function for behavioral disruption of Blainville’s beaked whales (Mesoplodon densirostris) from mid-frequency active sonar 

      Moretti, David; Thomas, Len; Marques, Tiago A.; Harwood, John; Dilley, Ashley; Neales, Bert; Shaffer, Jessica; Mccarthy, E; New, Leslie Frances; Jarvis, S; Morrissey, Ron (2014-01) - Journal article
      There is increasing concern about the potential effects of noise pollution on marine life in the world’s oceans. For marine mammals, anthropogenic sounds may cause behavioral disruption, and this can be quantified using a ...
    • Understanding the population consequences of disturbance 

      Pirotta, Enrico; Booth, Cormac G.; Costa, Daniel P.; Fleishman, Erica; Kraus, Scott D.; Lusseau, David; Moretti, David; New, Leslie F.; Schick, Robert S.; Schwarz, Lisa K.; Simmons, Samantha E.; Thomas, Len; Tyack, Peter L.; Weise, Michael J.; Wells, Randall S.; Harwood, John (2018-09-12) - Journal item
      Managing the nonlethal effects of disturbance on wildlife populations has been a long-term goal for decision makers, managers, and ecologists, and assessment of these effects is currently required by European Union and ...
    • Using accelerometers to determine the calling behavior of tagged baleen whales 

      Goldbogen, Jeremy; De Ruiter, Stacy Lynn; Stimpert, Alison; Calambokidis, John; Friedlaender, Ari; Schorr, Greg; Moretti, David; Tyack, Peter Lloyd; Southall, Brandon (2014-07-15) - Journal article
      Low-frequency acoustic signals generated by baleen whales can propagate over vast distances, making the assignment of calls to specific individuals problematic. Here, we report the novel use of acoustic recording tags ...
    • Using energetic models to investigate the survival and reproduction of beaked whales (family Ziphiidae) 

      New, Leslie Frances; Moretti, David; Hooker, Sascha Kate; Costa, Daniel P.; Simmons, Samantha E. (2013-07-17) - Journal article
      Mass stranding of several species of beaked whales (family Ziphiidae) associated with exposure to anthropogenic sounds has raised concern for the conservation of these species. However, little is known about the species’ ...
    • Vessel noise affects beaked whale behavior : Results of a dedicated acoustic response study 

      Pirotta, Enrico; Milor, Rachel; Quick, Nicola Jane; Moretti, David; Dimarzio, Nancy; Tyack, Peter Lloyd; Boyd, Ian; Hastie, Gordon Drummond (2012-08-03) - Journal article
      Some beaked whale species are susceptible to the detrimental effects of anthropogenic noise. Most studies have concentrated on the effects of military sonar, but other forms of acoustic disturbance (e.g. shipping noise) ...