The most interesting result of the present study is the
fact that neither conspecifics nor heterospecifics influence
the post-settlement mortality rates of C. viridis,
when in their preferred habitat. Several hypotheses
could explain this result: mortality rates may be
dependent on the actual density of predators and the
size of the juvenile habitat relative to the density of
conspecifics and heterospecifics. For example, the
finding that conspecifics and heterospecific's presence
does not influence juvenile mortality may differ if
habitat size and/or density differed. It might be also
reasonable to expect that once in their natural habitat,
the influence of conspecifics and heterospecifics on
mortality may be quite subtle, and may not have been
detectable unless examined over several days. Lastly,
other less aggressive heterospecifics may also be
indicators to juvenile C. viridis that a habitat is suitable,
and could enhance settlement rates of a particular coral
head.