Biologists at the Bastrop State Park in Texas say they believe the habitat of the Houston Toad (Bufo Houstonensis) in the park was probably completely destroyed. Nearly the entire world population of the Houston Toad lives in a protected habitat in the Bastrop State Park. There were about 2,000 of them there, and only a few scattered small populations of them in surrounding counties. Those small populations will be unaffected by the fires, but significantly reduce the chances of the species
escaping extinction in the near future.
http://www.reuters.com/article/2011/...7867BW20110907
From what I understand, the amphibians themselves currently living in the fire zone are probably unaffected, since at this time of the year, they would be burrowed under the mud somewhere estivating. Forest and grass fires do not heat the ground that much, they just burn vegetation above ground level. But when they re-emerge with spring rains, there will be no suitable habitats for them to breed. They prefer pools and ponds in pine/oak woodland.
(Apologies if the science forum is not the proper forum---things about nature and wild animals fall through the cracks and don't fit in any forum.)