APPENDIX 2. Examples of some of the main components, processes, thresholds, and uncertainties of the oak social-ecological system, as described by regional natural resource professionals. These system features are categorized as either ecological or social/economic in nature and vary in the scale at which management and/or policy mechanisms are or could be used to address them. Example quotations are given to illustrate each feature (pseudonyms are used to protect interviewees’ identities).
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Key System Component or Process
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Type of Issue
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Management/ Policy Scale
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Example Quotation
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Deer herbivory1
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Ecological
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Site-level, multi-parcel, and regional
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[Deer herbivory] has gone ballistic. . . . There are a lot of woods
that you can’t find any tree younger than 20 years of age. And there are
just browse lines on the edge of the woods. Talk about an oak regeneration
problem! That’s an enormous problem for Northeast Iowa. It’s the
number one culprit; I’m 100% convinced of that. It’s not just shade
and succession. . . . The bottom line is, let’s say if you look at the
deer pressure on a scale of 1 to 10; 10 being the worst. Well, you could
probably just plant seedling walnut, cherry, ash, and spruce; if it was like a 7
or an 8, you could get by with certain things. But we’re going to have to
get that herd down to a 4 to grow oak again. To really be able to grow oak
consistently, because [the deer are] selectively browsing [oak]. —Tim,
a public forester for over 10 years
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Spread of invasive oak pests and diseases1,2
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Ecological
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Site-level, multi-parcel, regional, national, and
global
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My main concern right now is what’s on the horizon with gypsy moth
and emerald ash borer coming at us. I think that too is going to change the
face of the Driftless Area. Gypsy moth is going to rage through; it’s
going to take—probably the first go-around—it’s going to take
all the unhealthy trees, trees on poor aspects. Between that and black oak, our
south slope red oak stands could be decimated. The oak wilt is going to get
them, or gypsy moth is going to defoliate them three years in a
row. —Bob, a veneer buyer in the region for nearly 20 years
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Spread of invasive plant species1,2
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Ecological
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Site-level, multi-parcel, regional, national, and
global
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Now the number one problem we’ve got . . . is the invasive
species. European buckthorn has completely changed what we’re doing
either for post-treatment or follow-up treatment. It’s the primary thing
we have to kill. It gets so bad there even sugar maple can’t regenerate.
And it’s incredibly expensive. —Leo, a consulting forester for
over 20 years
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Advanced sugar maple regeneration1
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Ecological
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Site-level, multi-parcel, regional
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And with red oak, with this amount of deer herd that we have, and with
the amount of competition that’s generated, it’s next to impossible
to get red oak to regenerate in this hardwood stand. Unless you do very
intensive management. And then what’s the point if you’ve already
got basswood and maple encroaching. You can manage until you’re blue in
the face and it’s still going to encroach! —Leo, a consulting
forester for over 20 years
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Landowner adoption of oak management practices
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Social/ Economic
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Site-level, multi-parcel, regional
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A lot of landowners when they write their [management plans] . . .
they’ll say, ‘I want to manage for oak.’ Well, when you talk
to them and you find out about it, they really mean, ‘I don’t really
want to manage for oak, I don’t want to manage another oak stand, but I
really like the oak trees I have. So I really want to keep these oak
trees.’ But they're not willing to go through the expense, and the time,
and the effort to actually try to bring back oak. —Dan, a
consulting forester for nearly 10 years
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Site-level economic cost of oak regeneration
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Social/ Economic
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Site-level
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In these direct [oak] seedings, we usually get really good germination
of your oaks, red and bur anyway, but the deer usually get them, or the rabbits.
What they’ve gone to doing is basically leaving out the acorn component
and . . . going in the following spring and planting 10-20 good sized oak and
then caging them, a wire cage. Although it’s a lot of work and it gets
spendy, it might be the way we’ll have to go to guarantee oak until the
deer herd is thinned out. . . . But that costs almost $10 a
tree. —Dale, a logger and contract forester for over 30
years
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Forest parcelization and exurban housing
development1,2
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Social/ Economic
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Site-level, multi-parcel, regional, and national
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The other change is that the forest is being fragmented. . . . .Because
the value of recreational land right now, it’s worth more than crop land.
People are paying $3,000 dollars an acre for a place to hunt. People are
selling off that woods from the farm, and it’s fragmenting the
landscape. —Grant, a public forester for nearly 30 years
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Short-term aesthetic appeal of property
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Social/ Economic
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Site-level
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During the harvest, it’s going to be ugly, no doubt. For ten
years after the harvest, even if you do everything right, it’s going to be
so thick you can’t walk through it. So it’s not real enjoyable.
And then after 15 or 20 years it starts to kind of become a little easier to get
through. —Rich, a consulting forester for nearly 20 years
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Landowner placing importance on non-timber attributes of property
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Social/ Economic
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Site-level
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I see a lot of building going on out in the timber and I hate to see
that too. I think that takes away from the timber resource. . . . They want
some recreation ground. They want a park. . . . They’ve got resources
available, financial resources they can actually build a house and [they think],
‘Look, this is great, we can live out in the park.’ Parks are not
managed for timber very well, they’re there for looks; they’re not
there for timber management that usually involves some sort of cutting,
disturbances we’re talking about. And people that live out there, well
they don’t want to disturb it...They don’t want to mess it up.
That’s makes it tough to do some sort of management
activity. —Todd, a consulting forester for over 10 years
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Landowner posting “no hunting” of property
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Social/ Economic
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Site-level, multi-parcel, regional
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A recreational buyer . . . the first thing they do is slap “no
hunting” signs all over their boundaries. . . . One of my clients . . .
he lived there most of his life and . . . he said when he was a kid he could
count 23 different farms in this area that he could hunt. And he says now
there’s only one farm of those 23 he’s got any permission to hunt
on, and all the others have been locked up. —Tim, a public forester
for over 10 years
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Stumpage price of sugar maple >= oak
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Social/ Economic
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Regional, national, and global
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But since there was a lot of over mature [oak] timber, a lot of these
woods had maple-basswood understory. When you finally took the bigger oak, it
released the maple-basswood, so now we’ve got some more pure stands of
maple-basswood. Which, in our industry, the way we’re looking at it now
with hard maple being excellent, even more valuable than oak, and basswood kind
of a medium grade value wood, we’re going to manage for those
timbers. —Paul, a sawmill owner for over 25 years
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Landscape-level economic and operational constraints
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Social/ Economic
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Regional, national
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Say you have 30 contiguous acres of woods and if it is owned by one
property owner, say it’s a nice red oak stand for the most part. If that
one landowner . . . he would be much more apt to be able to carry out proper
silviculture on it, carry out a harvest on it, regenerate the oak. That same 30
acre parcel is now six landowners of five acres apiece. The likelihood of being
able to get that harvested in the same way is gonna be a lot more difficult,
because...you have six different landowners and...for them all to have the same
interest and same goals, both short- and long-term, is not always the case. . .
. It kind of takes away some of the managing based on what the actual resources
are. It takes away some tools from sound forest management. . . . It brings
more social or human factors into...[how] the actual management is carried out
on that property. —Sam, nearly 10 years as a public forester
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Landowner contact with natural resource professional
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Social/ Economic
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Site-level, regional
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Probably the biggest challenge with the landowners is getting them to
call. Once, if they call, then the chances of them doing something are pretty
high. Once you start working with them, most people, when they see what needs
to be done in their woods, everybody’s willing to do something. The
cost-sharing is a big benefit in that. . . . The cost of doing this stuff, if
it gets too prohibitive, it’s going to prevent people from [managing their
forest]. —Rob, a public forester for over 15 years
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Landowner selective removal (high-grading) of individual, high value
trees
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Social/ Economic
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Site-level, regional, national
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A lot of the harvesting that occurs...is at the whim of the owner and
the logger. And what typically happens still is a high-grade down to a certain
[tree] diameter limit, and in a lot of cases that just tends to promote further
conversion to, if we’re lucky here, maybe northern hardwoods—sugar
maple, basswood, ash—or if you’re unlucky, it’s elm, hickory
and box elder. So we have a wholesale conversion of former oak stands to
something else. —Jake, a public forester for over 30
years
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1Described as a key system threshold; once a critical level is
reached, management practices are ineffective or cost
prohibitive. 2Described as a critical uncertainty in the system.
Natural resource professionals were uncertain about the future trajectory of
these components or processes or unsure about how or if management and policy
mechanisms could be implemented to address these issues
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