Grateful acknowledgement is made to the following sources:
Photographs and images
Blue monkey, Lake Manyara, Tanzania:(Accessed 2008)
Resource 1: Mind Mapping - Background information on the water hyacinth/Lake Victoria’s water hyacinth problem/ James Ogwang – decided to spoil the party: Adapted from Watch out Water Hyacinths New Jungle Enemies are Coming
Every effort has been made to contact copyright holders. If any have been inadvertently overlooked the publishers will be pleased to make the necessary arrangements at the first opportunity.