Now showing items 1-5 of 5

  • Beaked whales echolocate on prey 

    Johnson, Mark P.; Madsen, Peter T.; Zimmer, Walter M. X.; Aguilar De Soto, Natacha; Tyack, Peter L. (Royal Society, 2004-12-07)
    Beaked whales (Cetacea: Ziphiidea) of the genera Ziphius and Mesoplodon are so difficult to study that they are mostly known from strandings. How these elusive toothed whales use and react to sound is of concern because ...
  • Clicking for calamari : toothed whales can echolocate squid Loligo pealeii 

    Madsen, Peter T.; Wilson, M.; Johnson, Mark P.; Hanlon, Roger T.; Bocconcelli, Alessandro; Aguilar De Soto, Natacha; Tyack, Peter L. (Inter-Research, 2007-11-27)
    Squid play an important role in biomass turnover in marine ecosystems and constitute a food source for ~90% of all echolocating toothed whale species. Nonetheless, it has been hypothesized that the soft bodies of squid ...
  • Following a foraging fish-finder : diel habitat use of Blainville's beaked whales revealed by echolocation 

    Arranz, Patricia; Aguilar De Soto, Natacha; Madsen, Peter T.; Brito, Alberto; Bordes, Fernando; Johnson, Mark P. (Public Library of Science, 2011-12-07)
    Simultaneous high resolution sampling of predator behavior and habitat characteristics is often difficult to achieve despite its importance in understanding the foraging decisions and habitat use of predators. Here we tap ...
  • Studying the behaviour and sensory ecology of marine mammals using acoustic recording tags : a review 

    Johnson, Mark P.; Aguilar De Soto, Natacha; Madsen, Peter T. (Inter-Research, 2009-12-03)
    Many marine animals use sound passively or actively for communication, foraging, predator avoidance, navigation, and to sense their environment. The advent of acoustic recording tags has allowed biologists to get the ...
  • Vessel noise effects on delphinid communication 

    Jensen, Frants H.; Bejder, Lars; Wahlberg, Magnus; Aguilar De Soto, Natacha; Johnson, Mark P.; Madsen, Peter T. (Inter-Research, 2009-12-03)
    Increasing numbers and speeds of vessels in areas with populations of cetaceans may have the cumulative effect of reducing habitat quality by increasing the underwater noise level. Here, we first use digital acoustic tags ...