Biology Reference
In-Depth Information
Figure 1.10, cont'd
An. superpictus
) (
Guerra et al., 2008
;
Sinka et al., 2010a
). The interaction
between vector lifespan and the length of the sporogonic cycle was modelled
for each pixel of the temperature suitability grid (
Fig. 1.5
), so that pixels in
which there was no time during the year that sporogony could be completed
were classified as being at no risk for
P. vivax
transmission (
Fig. 1.10
A3-D3).
A second environmental driver of suitability for
P. vivax
transmission
is availability of sufficient moisture. A mask of aridity was used to exclude
areas where arid conditions would preclude anopheline survival at all life
stages (
Shililu et al., 2004
;
Gray and Bradley, 2005
). Arid areas were identified
using the global GlobCover Land Cover product (ESA/ESA GlobCover
Project, led by MEDIAS-France/POSTEL) (
Bicheron et al., 2008
). The
aridity mask (
Fig. 1.6
) was treated differently from the temperature mask
