A male Pseudotropheus "aggressive gray head" photographed
at Maleri Island. This is another member of
the informally recognized Pseudotropheus "aggressive" species
group, and is different from the similarly named
P. "aggressive gray".
In the "aggressive gray head", Ribbink and colleagues
found that males and
females both defend territories, but that only about 60% of males,
and no females, had territories in which algal "gardens" developed.
The females allowed some mbuna of other species into their territories,
which presumably managed to graze enough algae there to preclude the
development of a "garden." Photo from Plate 7j of
Ribbink et al., 1983;
reproduced by permission of the
Zoological Society of Southern Africa.
Next Pseudotropheus "aggressive" algal gardener
|Last Update: 1 June 2008
Web Author: M. K. Oliver, Ph.D.
Copyright © 1997-2016 by M. K. Oliver - ALL RIGHTS RESERVED