Now showing items 1-20 of 33

  • A 3D stereo camera system for precisely positioning animals in space and time 

    Macfarlane, Nicholas; Howland, Jonathan; Jensen, Frants; Tyack, Peter Lloyd (2015-04) - Journal article
    Here, we describe a portable stereo camera system that integrates a GPS receiver, an attitude sensor and 3D stereo photogrammetry to rapidly estimate the position of multiple animals in space and time. We demonstrate the ...
  • Acoustic playback experiments to study behavioral responses of free-ranging marine animals to anthropogenic sound 

    Tyack, Peter Lloyd (2009-12-03) - Journal article
    Growing concern about the effects of anthropogenic sound on marine life has highlighted the need for empirical methods to study behavioral responses of marine animals to specific acoustic exposures. Some effects have been ...
  • Beaked whales 

    Madsen, Peter; Aguilar de Soto, Natacha; Tyack, Peter Lloyd; Johnson, Mark (2014-08-18) - Journal article
  • Blue whales respond to simulated mid-frequency military sonar 

    Goldbogen, Jeremy A.; Southall, Brandon L.; De Ruiter, Stacy Lynn; Calambokidis, John; Friedlaender, Ari S.; Hazen, Elliott L.; Falcone, Erin A.; Schorr, Gregory S.; Douglas, Annie; Moretti, David J.; Kyburg, Chris; McKenna, Megan F.; Tyack, Peter Lloyd (2013) - Journal article
    Mid-frequency military (1–10 kHz) sonars have been associated with lethal mass strandings of deep-diving toothed whales, but the effects on endangered baleen whale species are virtually unknown. Here, we used controlled ...
  • The challenges of analyzing behavioral response study data : an overview of the MOCHA (Multi-study OCean acoustics Human effects Analysis) project 

    Harris, Catriona M; Thomas, Len; Sadykova, Dinara; De Ruiter, Stacy Lynn; Tyack, Peter Lloyd; Southall, Brandon L.; Read, Andrew J.; Miller, Patrick (Springer Science and Business Media, 2016) - Conference item
    This paper describes the MOCHA project which aims to develop novel approaches for the analysis of data collected during Behavioral Response Studies (BRSs). BRSs are experiments aimed at directly quantifying the effects of ...
  • Changes in dive behaviour during naval sonar exposure in killer whales, long-finned pilot whales, and sperm whales. 

    Sivle, Lise D; Kvadsheim, Petter H; Fahlman, Andreas; Lam, Frans Peter; Tyack, Peter Lloyd; Miller, Patrick (2012-10-11) - Journal article
    Anthropogenic underwater sound in the environment might potentially affect the behavior of marine mammals enough to have an impact on their reproduction and survival. Diving behavior of four killer whales (Orcinus orca), ...
  • Deadly diving? Physiological and behavioural management of decompression stress in diving mammals 

    Hooker, Sascha Kate; Fahlman, A.; Moore, M. J.; Aguilar de Soto, N.; Bernaldo de Quiros, Y.; Brubakk, A. O.; Costa, D. P.; Costidis, A. M.; Dennison, S.; Falke, K. J.; Fernandez, A.; Ferrigno, M.; Fitz-Clarke, J. R.; Garner, M. M.; Houser, D. S.; Jepson, P. D.; Ketten, D. R.; Kvadsheim, P. H.; Madsen, P. T.; Pollock, N. W.; Rotstein, D. S.; Rowles, T. K.; Simmons, S. E.; Van Bonn, W.; Weathersby, P. K.; Weise, M. J.; Williams, T. M.; Tyack, Peter Lloyd (2012-03-22) - Journal item
    Decompression sickness (DCS; 'the bends') is a disease associated with gas uptake at pressure. The basic pathology and cause are relatively well known to human divers. Breath-hold diving marine mammals were thought to be ...
  • Diving behavior and fine-scale kinematics of free-ranging Risso’s dolphins foraging in shallow and deep-water habitats 

    Arranz, Patricia; Benoit-Bird, Kelly; Friedlaender, Ari S.; Hazen, Elliot L.; Goldbogen, Jeremy A.; Stimpert, Alison K.; De Ruiter, Stacy Lynn; Calambokidis, John; Southall, Brandon; Fahlman, Andreas; Tyack, Peter Lloyd (2019-03-12) - Journal article
    Air-breathing marine predators must balance the conflicting demands of oxygen conservation during breath-hold and the cost of diving and locomotion to capture prey. However, it remains poorly understood how predators ...
  • Dose response severity functions for acoustic disturbance in cetaceans using recurrent event survival analysis 

    Harris, Catriona M; Sadykova, Dinara; De Ruiter, Stacy Lynn; Tyack, Peter Lloyd; Miller, Patrick; Kvadsheim, Petter; Lam, Frans-Peter; Thomas, Len (2015-11-20) - Journal article
    Behavioral response studies (BRSs) aim to enhance our understanding of the behavior changes made by animals in response to specific exposure levels of different stimuli, often presented in an increasing dosage. Here, we ...
  • Dose-response relationships for the onset of avoidance of sonar by free-ranging killer whales 

    Miller, Patrick; Antunes, Ricardo Nuno; Wensveen, Paulus Jacobus; Samarra, Filipa Isabel Pereira; Alves, Ana Catarina De Carvalho; Tyack, Peter Lloyd; Kvadsheim, Petter H.; Kleivane, Lars; Lam, Frans-Peter A.; Ainslie, Michael A.; Thomas, Len (2014-02) - Journal article
    Eight experimentally controlled exposures to 1−2 kHz or 6−7 kHz sonar signals were conducted with four killer whale groups. The source level and proximity of the source were increased during each exposure in order to reveal ...
  • Echolocation : clicking for supper 

    Tyack, Peter Lloyd (2015-04-29) - Journal article
    When close to prey, porpoises actively widen their sonar beam, which may make it harder for the prey to escape.
  • Estimated tissue and blood N2 levels and risk of in vivo bubble formation in deep-, intermediate- and shallow diving toothed whales during exposure to naval sonar. 

    Kvadsheim, Petter H; Miller, Patrick; Tyack, Peter Lloyd; Sivle, Lise D; Lam, Frans Peter; Fahlman, Andreas (2012-05-10) - Journal article
    Naval sonar has been accused of causing whale stranding by a mechanism which increases formation of tissue N2 gas bubbles. Increased tissue and blood N2 levels, and thereby increased risk of decompression sickness (DCS), ...
  • 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 ...
  • The evolutionary roots of creativity : mechanisms and motivations 

    Wiggins, Geraint A.; Tyack, Peter Lloyd; Scharff, Constance; Rohrmeier, Martin (2015-03) - Journal article
    We consider the evolution of cognition and the emergence of creative behaviour, in relation to vocal communication. We address two key questions: (i) what cognitive and/or social mechanisms have evolved that afford aspects ...
  • 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 ...
  • First indications that northern bottlenose whales are sensitive to behavioural disturbance from anthropogenic noise 

    Miller, Patrick; Kvadsheim, P H; Lam, F P A; Tyack, Peter Lloyd; Curé, C; De Ruiter, Stacy Lynn; Kleivane, L; Sivle, L D; van IJsselmuide, S P; Visser, F; Wensveen, Paulus Jacobus; von Benda-Beckmann, A M; Martin Lopez, Lucia Martina; Narazaki, Tomoko; Hooker, Sascha Kate (2015-06-03) - Journal article
    Although northern bottlenose whales were the most heavily hunted beaked whale, we have little information about this species in its remote habitat of the North Atlantic Ocean. Underwater anthropogenic noise and disruption ...
  • Getting below the surface : density estimation methods for deep diving animals using slow autonomous underwater vehicles 

    Gkikopoulou, Kalliopi Charitomeni (University of St Andrews, 2018) - Thesis
    Underwater gliders can provide an alternative cost-effective platform for passive acoustic monitoring surveys, compared to boat surveys, for abundance estimation and to collect high resolution environmental data for habitat ...
  • How man-made interference might cause gas bubble emboli in deep diving whales 

    Fahlman, Andreas; Tyack, Peter Lloyd; Miller, Patrick; Kvadsheim, Petter (2014-01-28) - Journal article
    Recent cetacean mass strandings in close temporal and spatial association with sonar activity has raised the concern that anthropogenic sound may harm breath-hold diving marine mammals. Necropsy results of the stranded ...
  • International Quiet Ocean Experiment science plan 

    Tyack, Peter Lloyd; Frisk, George; Boyd, Ian; Urban, Edward; Seeyave, Sophie; University of St Andrews. School of Biology; University of St Andrews. Centre for Social Learning & Cognitive Evolution; University of St Andrews. Marine Alliance for Science & Technology Scotland; University of St Andrews. Sea Mammal Research Unit; University of St Andrews. Sound Tags Group; University of St Andrews. Bioacoustics group; University of St Andrews. Institute of Behavioural and Neural Sciences; University of St Andrews. Scottish Oceans Institute (Scientific Committee on Oceanic Research / Partnership for Observation of the Global Oceans, 2015) - Report
  • Marine mammals and sonar : dose-response studies, the risk-disturbance hypothesis and the role of exposure context 

    Harris, Catriona M; Thomas, Len; Falcone, Erin; Hildebrand, John; Houser, Dorian; Kvadsheim, Petter; Lam, Frans-Peter A.; Miller, Patrick; Moretti, David J.; Read, Andrew; Slabbekoorn, Hans; Southall, Brandon L.; Tyack, Peter Lloyd; Wartzok, Douglas; Janik, Vincent M. (2018-01) - Journal item
    1. Marine mammals may be negatively affected by anthropogenic noise. Behavioural response studies (BRSs) aim to establish a relationship between the exposure dose of a stressor and associated behavioural responses of ...