Well I would have an easier time believing all of that if the numbers you provided were anywhere near realistic. If we're gonna do the hypothetical numbers game, I'll throw some out there as well...
Let's say we have a starting population of 10500 deer... at a 1:2 buck to doe ratio (which is pretty nontypical) that results in 3500 bucks and 7000 does. Let's also
conservatively assume that only 70% of the does get bred, only 94% of those are successful, and only 1.2 fawns per doe. Factor in a statewide average harvest rate of 30%... and here we go...
7000 does and 3500 bucks...
minus 30% deer harvested = 4925 does, 2425 bucks...
4925 does x 70% bred, x 94% success rate, x 1.2 fawns per doe = 3889 offspring...
3889 offspring + original 4925 does and 2425 bucks = 11239 total deer the following spring...
That's a gain of 1239 deer, AFTER 30% harvest and only 70% reproduction rate.
Now let's try one with EHD involved. I'm gonna say 20% mortality from EHD because I think 25% is pretty high.
10500 deer - 20% EHD deaths = 8400 deer (2772 bucks, 5628 does)...
minus 30% deer harvested = 1940 bucks, 3940 does...
3940 does x 70% bred, x 94% success rate, x 1.2 fawns per doe = 3111 offspring...
3111 offspring + original 1940 bucks and 3940 does = 8991 total deer the following spring...
Obviously, the herd has taken a pretty decent hit, going from 10500 to 8991 in just a year.
However, since EHD is not killing 20% of the deer year after year, we can assume population growth and harvest continues on as normal. So using the same harvest and growth rates, the population rises to 9624 deer in one more year, and rises to 10301 deer the year after that. So even after a prolific EHD-related kill, the population is back to where it was originally in just three years.
Keep in mind, these numbers are based on a 1:2 buck to doe ratio! In reality, the statewide average is probably more like 1:4 or higher... which would result in the population bouncing back even faster! Also, I'm basing reproduction on just 1.2 fawns per doe, which I believe is pretty low as well.
I'm not saying that my numbers are right and yours are wrong, or vise versa. Do I think mine are more realistic? Well, yea I guess so. My biggest thing is that I don't believe the EHD outbreak is the sole cause of decreased deer sightings. There has to be more factors involved. If it's true that the population isn't bouncing back on its own, there has to be a significant amount of coyote kills, poaching, or alien abductions taking place (
).