I can only assume that this miserable summer has resulted in a higher mortality rate for fawns, but is it also lethal to some percentage of the adult population?
Southwest Oklahoma is in its third year of severe drought. Last summer was the hottest and driest on record: 100-150 year old oak trees died from lack of water. Most of the ponds dried up. We got some rain beginning in late September, 2011 but there was no runoff and the ponds are in worse shape now than this time last year.
Normally coyotes get about one-third of fawns in this part OK. Because of coyote depredation, and coupled with last years heat and drought; only 1/4-1/3 of does were running with fawns last deer season. The situation was better in south central OK where there was more rain.
The vast majority of wild hog sows lost their litters here last summer. i saw dozens of small dead pigs.