Roel A. van der Heijden

Learn More
The mechanisms by which algae disperse across space on coral reefs are poorly known. We investigated the ability of four common Caribbean herbivorous fish species to disperse viable algal fragments through consumption of macroalgae and subsequent defecation. Fragments of all major algal taxa (Phaeophyta, Rhodophyta, and Chlorophyta) were found in 98.7 % of(More)
The red Cu-S pair luminescence in GaP has been studied by time resolved spectroscopy at several photon energies between 1.39 and 1.77 eV for times shorter than 40 ~s. Superimposed on a long lasting luminescence a fast decay was observed showing the typical behaviour of donor-aceeptor (DA) pair recombination. The transition probability W m was estimated to(More)
  • 1