Now showing items 1-20 of 132

  • 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 sequences in non-human animals : a tutorial review and prospectus 

    Kershenbaum, Arik; Blumstein, Dan; Roch, Marie; Akçay, Çaglar; Backus, Gregory; Bee, Mark A.; Bohn, Kirsten; Cao, Yan; Carter, Gerald; Cäsar, Cristiane; Coen, Michael; De Ruiter, Stacy Lynn; Doyle, Laurance; Edelman, Shimon; Ferrer-i-Cancho, Ramon; Freeberg, Todd M.; Garland, Ellen Clare; Gustison, Morgan; Harley, Heidi E.; Huetz, Chloé; Hughes, Melissa; Bruno, Julia Hyland; Ilany, Amiyaal; Jin, Dezhe Z.; Johnson, Michael; Ju, Chenghui; Karnowski, Jeremy; Lohr, Bernard; Manser, Marta; McCowan, Brenda; Mercado III, Eduardo; Narins, Peter M.; Piel, Alex; Rice, Megan; Salmi, Roberta; Sasahara, Kazutoshi; Sayigh, Laela; Shiu, Yu; Taylor, Charles; Vallejo, Edgar E.; Waller, Sara; Zamora-Gutierrez, Veronica (2014) - Journal article
    Animal acoustic communication often takes the form of complex sequences, made up of multiple distinct acoustic units. Apart from the well-known example of birdsong, other animals such as insects, amphibians,and mammals ...
  • Adapting to a warmer ocean – seasonal shift of baleen whale movements over three decades 

    Ramp, Christian; Delarue, Julian; Palsbøll, Per J; Sears, Richard; Hammond, Philip Steven (2015-03-18) - Journal article
    Global warming poses particular challenges to migratory species, which face changes to the multiple environments occupied during migration. For many species, the timing of migration between summer and winter grounds and ...
  • An alternative method for correcting fluorescence quenching 

    Biermann, Lauren; Guinet, Christophe; Bester, Marthan; Brierley, Andrew Stuart; Boehme, Lars (2015-01-13) - Journal article
    Under high light intensity, phytoplankton protect their photosystems from bleaching through non-photochemical quenching processes. The consequence of this is suppression of fluorescence emission, which must be corrected ...
  • Annual report on the implementation of Council Regulation (EC) No 812/2004 during 2014 

    Northridge, Simon; Kingston, Al; Thomas, Len (European Commission, 2015-06-01) - Report
  • Anthropogenic noise causes body malformations and delays development in marine larvae 

    Aguilar de Soto, Natacha; Delorme, Natali; Atkins, John; Howard, Sunkita; Williams, James; Johnson, Mark (2013-10-03) - Journal article
    Understanding the impact of noise on marine fauna at the population level requires knowledge about the vulnerability of different life-stages. Here we provide the first evidence that noise exposure during larval development ...
  • Apparent source levels and active communication space of whistles of free-ranging Indo-Pacific humpback dolphins (Sousa chinensis) in the Pearl River Estuary and Beibu Gulf, China 

    Wang, Zhi-Tao; Au, Whitlow W. L.; Rendell, Luke; Wang, Ke-Xiong; Wu, Hai-Ping; Wu, Yu-Ping; Liu, Jian-Chang; Duan, Guo-Qin; Cao, Han-Jiang; Wang, Ding (2016-02-15) - Journal article
    Background . Knowledge of species-specific vocalization characteristics and their associated active communication space, the effective range over which a communication signal can be detected by a conspecific, is critical ...
  • An approximate Bayesian method applied to estimating the trajectories of four British grey seal (Halichoerus grypus) populations from pup counts. 

    Lonergan, Michael Edward; Thompson, David; Thomas, Leonard Joseph; Duck, Callan David (2011) - Journal article
    1. For British grey seals, as with many pinniped species, population monitoring is implemented by aerial surveys of pups at breeding colonies. Scaling pup counts up to population estimates requires assumptions about ...
  • The Argos-CLS Kalman filter : error structures and state-space modelling relative to Fastloc GPS data 

    Lowther, A.D.; Lydersen, C.; Fedak, M.A.; Lovell, Philip; Kovacs, K.M. (2015-04-23) - Journal article
    Understanding how an animal utilises its surroundings requires its movements through space to be described accurately. Satellite telemetry is the only means of acquiring movement data for many species however data are prone ...
  • Assessing performance of Bayesian state-space models fit to Argos Satellite telemetry locations processed with Kalman Filtering 

    Silva, Monica A.; Jonsen, Ian; Russell, Deborah Jill Fraser; Prieto, Rui; Thompson, David; Baumgartner, Mark F. (2014-03-20) - Journal article
    Argos recently implemented a new algorithm to calculate locations of satellite-tracked animals that uses a Kalman filter (KF). The KF algorithm is reported to increase the number and accuracy of estimated positions over ...
  • Assessing the effectiveness of conservation measures : resolving the "wicked" problem of the Steller sea lion 

    Boyd, Ian Lamont (2010-07) - Journal article
    “Wicked” problems are those that are complex and that change when solutions are applied. Many conflicts in conservation fall in to this category. The study approached the problem of how to constrain the apparent wickedness ...
  • Assessing the potential of autonomous submarine gliders for ecosystem monitoring across multiple trophic levels (plankton to cetaceans) and pollutants in shallow shelf seas 

    Suberg, L.; Wynn, R.B.; Kooij, J.V.D.; Fernand, L.; Fielding, S.; Guihen, D.; Gillespie, D.; Johnson, M.; Gkikopoulou, K.C.; Allan, I.J.; Vrana, B.; Miller, P.I.; Smeed, D.; Jones, A.R. (2014-09) - Journal article
    A combination of scientific, economic, technological and policy drivers is behind a recent upsurge in the use of marine autonomous systems (and accompanying miniaturized sensors) for environmental mapping and monitoring. ...
  • Assessing use of and reaction to unmanned aerial systems in gray and harbor seals during breeding and molt in the UK 

    Pomeroy, Patrick; O’Connor, L.; Davies, P. (2015-09-15) - Journal article
    Wildlife biology applications of unmanned aerial systems (UAS) are extensive. Survey, identification, and measurement using UAS equipped with appropriate sensors can now be added to the suite of techniques available for ...
  • Beaked whales 

    Madsen, Peter; Aguilar de Soto, Natacha; Tyack, Peter Lloyd; Johnson, Mark (2014-08-18) - Journal article
  • 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 ...
  • Beluga whale (Delphinapterus leucas) vocalizations and call classification from the eastern Beaufort Sea population 

    Garland, Ellen Clare; Castellote, Manuel; Berchok, Catherine (2015-06) - Journal article
    Beluga whales, Delphinapterus leucas, have a graded call system; call types exist on a continuum making classification challenging. A description of vocalizations from the eastern Beaufort Sea beluga population during its ...
  • Beyond climate envelopes : bio-climate modelling accords with observed 25-year changes in seabird populations of the British Isles 

    Russell, Deborah Jill Fraser; Wanless, Sarah; Collingham, Yvonne; Anderson, Barbara; Beale, Colin; Reid, James; Huntley, Brian; Hamer, Keith (2015-02) - Journal article
    Aim Climate envelope models (CEMs) are used to assess species’ vulnerability to predicted changes in climate, based on their distributions. Extinction risk, however, also depends on demographic parameters. Accordingly, we ...
  • 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 ...
  • Can a gray seal (Halichoerus grypus) generalize call classes? 

    Stansbury, Amanda; de Freitas, Mafalda; Wu, Gi-Mick; Janik, Vincent M. (2015-11) - Journal article
    Past researchers have found that gray seals (Halichoerus grypus) are capable of classifying vocal signals by call type using a trained set, but were unable to generalize to novel exemplars (Shapiro, Slater, & Janik, 2004). ...
  • Cetacean abundance and distribution in European Atlantic shelf waters to inform conservation and management 

    Hammond, Philip Steven; Macleod, Kelly; Berggren, Per; Borchers, David Louis; Burt, M Louise; Cañadas, Ana; Desportes, Genevieve; Donovan, Greg P; Gilles, Anita; Gillespie, Douglas Michael; Gordon, Jonathan Charles David; Hiby, Lex; Kuklik, Iwona; Leaper, Russell; Lehnert, Kristina; Leopold, Mardik; Lovell, Philip; Øien, Nils; Paxton, Charles G. M.; Ridoux, Vincent; Rogan, Emer; Samarra, Filipa Isabel Pereira; Scheidat, Meike; Sequeira, Marina; Siebert, Ursula; Skov, Henrik; Swift, Rene James; Tasker, Mark; Teilmann, Jonas; Van Canneyt, Olivier; Vázquez, José Antonio (2013-08) - Journal article
    The European Union (EU) Habitats Directive requires Member States to monitor and maintain at favourable conservation status those species identified to be in need of protection, including all cetaceans. In July 2005 we ...