79 Works

Gefährlicher Wasserdampf. Phreatische Eruptionen

Karen Strehlow
Bei phreatischen Eruptionen fehlen häufig warnende Vorzeichen. Der plötzliche Ausbruch des japanischen Vulkans Ontake im Herbst 2014 traf viele unvorbereitet.

Vulkanologen auf See. Detektivarbeit am Meeresgrund

Karen Strehlow
Die typischen Arbeitsgebiete eines Vulkanologen sind – mal abgesehen von seinem Schreibtisch – an sich die Flanken und Krater eines Vulkans. Die Vulkanologen des GEOMAR stachen trotzdem in See.

Prey and predator density-dependent interactions under different water volumes

Ross Cuthbert, Tatenda Dalu, Ryan Wasserman, Arnaud Sentis, Olaf Weyl, William Froneman, Amanda Callaghan & Jaimie Dick
Predation is a critical ecological process that directly and indirectly mediates population stabilities, as well as ecosystem structure and function. The strength of interactions between predators and prey may be mediated by multiple density-dependences concerning numbers of predators and prey. In temporary wetland ecosystems in particular, fluctuating water volumes may alter predation rates through differing search space and prey encounters rates. Using a functional response approach, we examined the influence of predator and prey densities...

Data from: Characterizing niche differentiation among marine consumers with amino acid δ13C fingerprinting

Thomas Larsen, Thomas Hansen & Jan Dierking
Marine food webs are highly compartmentalized and characterizing the trophic niches among consumers is important for predicting how impact from human activities affect the structuring and functioning of marine food webs. Biomarkers such as bulk stable isotopes have proven to be powerful tools to elucidate trophic niches, but they may lack in resolution, particularly when spatio-temporal variability in a system is high. To close this gap, we investigated whether carbon isotope (δ13C ) patterns of...

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