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PANGAEA - Publishing Network for Geoscientific & Environmental Data (847.310 recursos)

The information system PANGAEA is operated as an Open Access library aimed at archiving, publishing and distributing georeferenced data from earth system research. The system guarantees long-term availability of its content through a commitment of the operating institutions.

PANGAEA tech-keyword 'MMTUCT' (2 data sets)

Mostrando recursos 1 - 2 de 2

  1. Dive depth and dive duration data of subadult and adult, male and female southern elephant seals from Marion Island between 2004 and 2008 with links to datasets

    McIntyre, Trevor; de Bruyn, P J Nico; Ansorge, Isabelle J; Bester, Marthán N; Bornemann, Horst; Plötz, Joachim; Tosh, Cheryl Ann
    Although numerous studies have addressed the migration and dive behaviour of southern elephant seals (Mirounga leonina), questions remain about their habitat use in the marine environment. We report on the vertical use of the water column in the species and the potential lifetime implications for southern elephant seals from Marion Island. Long-term mark-resight data were used to complement vertical habitat use for 35 known individuals tagged with satellite-relay data loggers, resulting in cumulative depth use extrapolated for each individual over its estimated lifespan. Seals spent on average 77.59% of their lives diving at sea, 7.06% at the sea surface, and...
    (text/tab-separated-values, 535 data points) - 06-jun-2018

  2. Ocean temperature measured by elephant seal-CTDs in the Southern Ocean with links to datasets

    McIntyre, Trevor; Ansorge, Isabelle J; Bornemann, Horst; Plötz, Joachim; Tosh, Cheryl Ann; Bester, Marthán N
    The potential effects of ocean warming on marine predators are largely unknown, though the impact on the distribution of prey in vertical space may have far reaching impacts on diving predators such as southern elephant seals. We used data from satellite-tracked southern elephant seals from Marion Island to investigate the relationship between their dive characteristics (dive depths, dive durations and time-at-depth index values) and environmental variables (temperature at depth, depth of maximum temperature below 100 m, frontal zone and bathymetry) as well as other demographic and behavioural variables (migration stage, age-class, track day and vertical diel strategy). While other variables,...
    (text/tab-separated-values, 250 data points) - 06-jun-2018

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