Phelsuma
breviceps inhabits the dry south western coast regions of
Madagascar. More specific locations are Anakao, Lac
Tsimanampetsotsa, Ampanihy, Betanty and Itampolo. These
locations are all in the vicinity of the coastline except for
Ampanihy that lies about 50 km inwards. One record exists from
Tamatave (Hallmann, 1993) but this must be a single case of
anthropogenic dispersal. Records north of Toliara (Meier, 1993)
have not been confirmed.
Terra Typica (resticta)
Land between Lac Tsimanampetsotsa
and the Indian Ocean.
Biotope
The habitat of Phelsuma
breviceps is the spiny dessert region, the driest area of
Madagascar, with an average annual rainfall of less than 350 mm,
and the dry season may last for 9 to 11 months. A wet season
extends from October to April, but prolonged periods of drought
are not uncommon. As a result, the plants of this region are
highly adapted to dry, sandy soils and other harsh conditions.
One
of these plants, associated with Phelsuma breviceps, is a
treelike thorny succulent, Euphorbia stenoclada. These
plants, reaching a height of 2,5 m, have a thorn-less 'tree trunk'
with many spiny braches covered with sometimes more than 10
cm spines and thorns. The females of Phelsuma breviceps deposit
their eggs between these thorny labyrinths where they, and the
animals themselves, are very well protected against predators. The
geckos spent most of the day on the trunk of these plants and
retreat between the spines when threatened or when night falls.
The only other vegetation
associated with Phelsuma breviceps are dead, often hollow
trees that give quasi the same protection as Euphorbia
stenoclauda.