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Started by Neill_Prater, May 30, 2021, 09:30:30 AM
Quote from: bwhana on June 10, 2021, 06:39:15 PMLots of personal opinions and thoughts on this thread so far with some good science mixed in along the way. Grant just released a great video addressing this topic with a biological view. https://youtu.be/RzIn0dSgeiU
Quote from: PNWturkey on June 11, 2021, 03:03:59 PMQuote from: bwhana on June 10, 2021, 06:39:15 PMLots of personal opinions and thoughts on this thread so far with some good science mixed in along the way. Grant just released a great video addressing this topic with a biological view. https://youtu.be/RzIn0dSgeiUThanks for sharing! He definitely has a strong opinion on nest predators.I made a graph of spring turkey harvest in Iowa (a state I used to live and turkey hunt in), from 2007-2021 (mandatory reporting started in 2007). Am I to assume that nest predators have not increased in Iowa compared to Missouri? Why is Iowa's turkey harvest relatively stable while other states seem to be struggling?It seems that if predators were truly the main issue due to lack of trapping/low fur prices, that Iowa would be suffering along with other states...
Quote from: owlhoot on June 11, 2021, 03:55:51 PMQuote from: PNWturkey on June 11, 2021, 03:03:59 PMQuote from: bwhana on June 10, 2021, 06:39:15 PMLots of personal opinions and thoughts on this thread so far with some good science mixed in along the way. Grant just released a great video addressing this topic with a biological view. https://youtu.be/RzIn0dSgeiUThanks for sharing! He definitely has a strong opinion on nest predators.I made a graph of spring turkey harvest in Iowa (a state I used to live and turkey hunt in), from 2007-2021 (mandatory reporting started in 2007). Am I to assume that nest predators have not increased in Iowa compared to Missouri? Why is Iowa's turkey harvest relatively stable while other states seem to be struggling?It seems that if predators were truly the main issue due to lack of trapping/low fur prices, that Iowa would be suffering along with other states...Restoration efforts ended in 2001. Harvest went almost half in 2007. Since then harvest is at levels of about 1992. In that year 1992 there were a bit over 30k licenses, from 2007 -2019 there were 45-55k licenses. Success rates dropped from near 50% in the early 2000s to 20% in 2007 to present. Fall harvest has dropped to 7% success and looks like under 1000 birds taken. Since 2007 to 2019 licensed fall turkey hunters fell from 11,024 to 6,296. Question is why?
Quote from: PNWturkey on June 11, 2021, 04:21:07 PMQuote from: owlhoot on June 11, 2021, 03:55:51 PMQuote from: PNWturkey on June 11, 2021, 03:03:59 PMQuote from: bwhana on June 10, 2021, 06:39:15 PMLots of personal opinions and thoughts on this thread so far with some good science mixed in along the way. Grant just released a great video addressing this topic with a biological view. https://youtu.be/RzIn0dSgeiUThanks for sharing! He definitely has a strong opinion on nest predators.I made a graph of spring turkey harvest in Iowa (a state I used to live and turkey hunt in), from 2007-2021 (mandatory reporting started in 2007). Am I to assume that nest predators have not increased in Iowa compared to Missouri? Why is Iowa's turkey harvest relatively stable while other states seem to be struggling?It seems that if predators were truly the main issue due to lack of trapping/low fur prices, that Iowa would be suffering along with other states...Restoration efforts ended in 2001. Harvest went almost half in 2007. Since then harvest is at levels of about 1992. In that year 1992 there were a bit over 30k licenses, from 2007 -2019 there were 45-55k licenses. Success rates dropped from near 50% in the early 2000s to 20% in 2007 to present. Fall harvest has dropped to 7% success and looks like under 1000 birds taken. Since 2007 to 2019 licensed fall turkey hunters fell from 11,024 to 6,296. Question is why?If you're referring to Iowa, in 2007 mandatory reporting started, so comparing 2007+ to prior to 2007 is problematic because no one knows for sure what the % reported harvest is (i.e. not all birds shot are reported). That's likely why it looks like harvest "dropped" in 2007, because the metric to determine harvest is different than pre-2007. I was living in Iowa in 2007 and nothing was noticeably different about that year compared to previous years.However, we can more reliably compare Iowa data that is all 2007+ (assuming reporting rate is somewhat the same year-over-year).No trends pop out to me in that Iowa dataset from 2007-2021, certainly not any declining harvest. So, why do other states show declining harvest, while Iowa is stable for the last 15 years of harvest data?
Quote from: owlhoot on June 11, 2021, 04:51:10 PMyes Iowa , all kinds of information on there sight. The data says that 2007 shift. Are you saying that mail in surveys are or where more dependable than mandatory? That they took the time to mail in the kill and now half don't? Maybe I am missing something.Yes it looks like the harvest has been stable . I just pointed out that what was puzzling is that the huge increase of hunters and still the same amount killed. Just having a discussion. Looking at the charts , most of my posts are as much of what do guys think rather than I know . I'm just reading and looking at the charts. Since 2007 to 2019 licensed fall turkey hunters fell from 11,024 to 6,296. Question is why?Iowa coon hunters still take a lot of raccoons. In 2011-2014 Around 300k, fell after until 2019 or so to around 100k. Last Missouri report I think said 22k killed?
Quote from: PNWturkey on June 11, 2021, 05:44:54 PMQuote from: owlhoot on June 11, 2021, 04:51:10 PMyes Iowa , all kinds of information on there sight. The data says that 2007 shift. Are you saying that mail in surveys are or where more dependable than mandatory? That they took the time to mail in the kill and now half don't? Maybe I am missing something.Yes it looks like the harvest has been stable . I just pointed out that what was puzzling is that the huge increase of hunters and still the same amount killed. Just having a discussion. Looking at the charts , most of my posts are as much of what do guys think rather than I know . I'm just reading and looking at the charts. Since 2007 to 2019 licensed fall turkey hunters fell from 11,024 to 6,296. Question is why?Iowa coon hunters still take a lot of raccoons. In 2011-2014 Around 300k, fell after until 2019 or so to around 100k. Last Missouri report I think said 22k killed?Those are good observations and questions. I don't have all the answers either, just trying to look at what data is available to help guide the discussion (knowing that data is never perfect either).Regarding 2007 vs. previous, I'm not sure if more people mailed in vs. online, I just remember there was quite a bit of pushback from hunters about the mandatory reporting and the thought is that not all hunters accurately report online. Not sure what the % is, but that is the likely shift from the pre-2007 data to the 2007+ data. That could also explain your question about the increase in hunters but not harvest - can't easily compare data either side of 2007, can only really look at trends past 2007.Fall turkey hunters - not sure why the decrease, but as far as I know Iowa has a quota system by zones so this could be a local change, i.e. the quotas changed in certain zones? Once the quota is reached no more tags are available. Iowa has one of the best population monitoring programs, so maybe they proactively decreased fall turkey tags a while back, not sure?
Quote from: eggshell on May 31, 2021, 06:50:31 AMQuote from: silvestris on May 30, 2021, 02:05:23 PMIt is going to take a major die off ...................of turkey"hunters". "We have met the enemy, and it is us,"Hmmm, maybe time for Thanos
Quote from: silvestris on May 30, 2021, 02:05:23 PMIt is going to take a major die off ...................of turkey"hunters". "We have met the enemy, and it is us,"