Webinar on grouse management and west Nile virus - The HuntingPA.com Outdoor Community
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post #1 of 41 (permalink) Old 02-14-2018, 04:15 PM Thread Starter
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Webinar on grouse management and west Nile virus

Grouse Management in the Age of West Nile Virus

Webinar- Feb. 15 at 12:00 EST






Webinar on grouse management and west Nile virus


Pennsylvania Game Commission research has revealed that West Nile virus is a relatively recent force acting to suppress grouse populations.

In this webinar, Pennsylvania Game Commission Grouse Biologist Lisa Williams will discuss West Nile virus, its impact on Pennsylvania grouse, and management actions being undertaken to stack the deck in favor of grouse recovery.

Register https://attendee.gotowebinar.com/reg...4?source=Email

When you are up to your butt in alligators, it is hard to remember your intent was to drain the swamp. Stay focused!
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post #2 of 41 (permalink) Old 02-14-2018, 07:58 PM
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I got the e-mailed invitation.

Nice that it's at noon on a day where the majority of folks would be at work............................

Maybe someone could summarize it for us afterwards.
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post #3 of 41 (permalink) Old 02-15-2018, 10:10 AM
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I've read that it will be recorded and you can watch at any time. You just won't be able to interact and ask questions.
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post #4 of 41 (permalink) Old 02-15-2018, 11:16 AM
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I registered and plan to watch it if I can figure out how to get connected with the webinar system.

Dick Bodenhorn
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post #5 of 41 (permalink) Old 02-15-2018, 11:52 AM Thread Starter
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dap, there is a whole list of past webinars on the PGC website, this one will be there as well probably right after the broadcast today.

When you are up to your butt in alligators, it is hard to remember your intent was to drain the swamp. Stay focused!
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post #6 of 41 (permalink) Old 02-15-2018, 12:55 PM
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Sounds like future seasons will be split into North/South zones. Pure common sense. Kudos to the PGC for that, it is a rare commodity in Harrisburg.

I still oppose the logic of closing the late season. A juvenile bird that survives breeds in the spring. Wanting to get adult birds through makes absolutely zero sense.

I guess we will just have to wait and see how this new framework works out if we will ever see a late season again. Cut and burn enough and I guess we have a chance.
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post #7 of 41 (permalink) Old 02-15-2018, 02:00 PM
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I can take you to some southern zone areas that are better than some northern zone areas. I'll take Berks, Schuylkill, Dauphin, Huntingdon any day over Lackawanna, pike, Mercer, or Erie counties.

Plenty of scouting and good habitat makes for a great hunt.

Jeff
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post #8 of 41 (permalink) Old 02-15-2018, 03:04 PM
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post #9 of 41 (permalink) Old 02-15-2018, 05:17 PM
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webinar was good

Quote:
Originally Posted by elk yinzer View Post
Sounds like future seasons will be split into North/South zones. Pure common sense. Kudos to the PGC for that, it is a rare commodity in Harrisburg.

I still oppose the logic of closing the late season. A juvenile bird that survives breeds in the spring. Wanting to get adult birds through makes absolutely zero sense.

I guess we will just have to wait and see how this new framework works out if we will ever see a late season again. Cut and burn enough and I guess we have a chance.
quote=elk yinzer;3053394]Sounds like future seasons will be split into North/South zones. Pure common sense. Kudos to the PGC for that, it is a rare commodity in Harrisburg.

I still oppose the logic of closing the late season. A juvenile bird that survives breeds in the spring. Wanting to get adult birds through makes absolutely zero sense.

I guess we will just have to wait and see how this new framework works out if we will ever see a late season again. Cut and burn enough and I guess we have a chance.[/quote]

"The late season is the season which most impacts the breeding population. In the late season, we are harvesting survivors. They have survived earlier hunting seasons and they have survived the rigors of winter to date. Also, late season harvest disproportionately removes adult birds (i.e. experienced breeders) (October adults = 34% of harvest; November adults = 51% of harvest; December adults = 57% of harvest; late season adults = 56% of harvest). Late season birds are just 8 to 12 weeks from the reproductive season. The goal for closing the late season when populations are low is to maximize the number of birds carried over into the breeding population. Finally, historic research across multiple states has indicated that population-level impacts from winter hunting are stronger than those of fall hunting." The above is a quote from the PGC website.

As you can see the goal is to maximize the number of birds carried over into the breeding season regardless of whether they are old or young. More breeders theoretically means more clutches. I personally would add :

Think of a grouse population as consisting of 2 cohort age groups: YEARLINGS i.e. those that have not lived through their first breeding season yet and ADULTS i.e. those that have lived through at least one breeding season. There is scientific work that supports the idea that the ADULTS of several species of tetraonids 1.) Have larger clutches than YEARLINGS and 2.) Have better survivorship of hatchlings. In addition it is my opinion that the longer a bird survives the greater the probability that it has been infected with WNV and therefore would carry immunity. As a result, one might extrapolate that ADULT hens are (at least potentially) less likely to succumb to WNV in the middle of brood rearing than yearlings.
If you created an age graph of a healthy growing population of a game species that graph should be pyramidal in shape. The wide base would represent juveniles of the species while the apex would represent progressively older age class animals as you moved vertically. The juveniles in the base are generally considered as comprising the majority of the surplus that hunting can remove without significant effect on the population. Once most of the juveniles are gone and the majority of animals bagged are adults there is concern that population growth or even stasis could be negatively affected.

While I agree that habitat is the most important life requirement for grouse I also recognize that you can have excellent habitat that does not hold grouse (or at least a population at carrying capacity) if other limiting factors are present to a degree that suppresses a population. The last sentence in the above PGC quote is noteworthy. It suggests (not proves) that hunting in the late season is/can be additive in nature. I personally believe that this is enough for me to grant the bird that I have had the joy of chasing, across the landscape through decades, the benefit of doubt. That is to say until and unless someone in real time (here and now in PA) proves the compensatory nature of unmanipulated late season hunting I am ok with the proposed season setting format.
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post #10 of 41 (permalink) Old 02-15-2018, 08:11 PM
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I liked the part when she talked about great habitat and there is a great survival rate. Problem is horrible forest managment over the last 30 years has very minimal great habitat.
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