We thank the staff of the Bellairs Research Institute for logistical
support.We also thank the Egyptian Environmental Affairs Agency
for permission to work at Ras Mohammed National Park, as well as
the Park Rangers and Raffia Rached Salem for their support in the
Park. M.C.S. and S.C.C. are supported by Fundacão para a Ciência e a
Tecnologia (Portuguese Ministry of Science and Technology; grant