"Alternative" Conservation Photography

I found this National Geographic piece on photography in the Pantanal pretty striking. I am currently taking a class on conservation photography, trying to use photography to construct immediate and striking photoessays with a deliberate conservation goal. However, this photographer, Daniel de Granville, decided to start photographing roadkill instead of 'the beauties of the natural world and tell nice stories about them—the kind that everybody likes to see and read and hear.' I think this is really tragic and though tourism, properly managed, is useful and provides a means of supporting an ecosystem, it is really sad that so many needless deaths occur in this way.
I thought it was particularly interesting that he mentioned the dry season, which drives animals to roadside ditches, coincides with the peak of the tourist season. To me, that sounds like an immediate target for the reduction of roadkill deaths. We could limit the car speed coming through, or reduce tourism in this time, or some other method.  I am also quite aware that we are travelling in the dry season - I hope nothing goes wrong with our drives!

N.B I am really excited to see some of the gatherings of wildlife - this is a flock of egrets feasting on the fish in a rapidly shrinking pond as the the rains disappear. Magnificent, no?