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<TD class=unhighlightedtitle><A id=weedsnews3106m class=entrytitlelink
href="http://invasivespecies.org.au/traction?type=single&proj=WeedsNews&rec=3106"
name=WeedsNews3106m>Integrating spread dynamics and economics of timber
production to manage Chinese tallow invasions in Southern U.<WBR>S.<WBR>
Forestlands</A>
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dc:title="Integrating spread dynamics and economics of timber production to manage Chinese tallow invasions in Southern U.<wbr>S.<wbr> Forestlands"
dc:date="2012-03-27T14:10:00+1100"
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class=date>March 27, 2012</SPAN></A> | <SPAN class=time>2:10
PM</SPAN> <BR>Posted by <A class=entrydetailsauthorlink
href="http://invasivespecies.org.au/traction/profile/1">David
Low</A></DIV></TD></TR><!-- /entrytitle -->
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<DIV id=weedsnews3106.01_LTA></DIV><STRONG>Abstract</STRONG>: Economic
costs associated with the invasion of nonnative species are of global
concern.<WBR> We estimated expected costs of Chinese tallow (<EM>Triadica
sebifera</EM> (L.<WBR>) Small) invasions related to timber production in
southern U.<WBR>S.<WBR> forestlands under different management
strategies.<WBR> Expected costs were confined to the value of timber
production losses plus costs for search and control.<WBR> We simulated
management strategies including (1) no control (NC), and control beginning
as soon as the percentage of invaded forest land exceeded (2) 60 (Low
Control), (3) 25 (Medium Control), or (4) 0 (High Control) using a
spatially-explicit, stochastic, bioeconomic model.<WBR> With NC, simulated
invasions spread northward and westward into Arkansas and along the Gulf
of Mexico to occupy —1.<WBR>2 million hectares within 20 years, with
associated expected total costs increasing exponentially to —$300
million.<WBR> With LC, MC, and HC, invaded areas reached —275, 34, and 2
thousand hectares after 20 years, respectively, with associated expected
costs reaching —$400, $230, and $200 million.<WBR> Complete eradication
would not be cost-effective; the minimum expected total cost was achieved
when control began as soon as the percentage of invaded land exceeded
5%.<WBR> These results suggest the importance of early detection and
control of Chinese tallow, and emphasize the importance of integrating
spread dynamics and economics to manage invasive species.<WBR><STRONG>
{</STRONG>Wang H-H, Grant WE, Gan J, Rogers WE, Swannack TM, et al.<WBR>
(2012).<WBR> Integrating spread dynamics and economics of timber
production to manage Chinese tallow invasions in Southern U.<WBR>S.<WBR>
Forestlands.<WBR> <EM>PLoS ONE,</EM> 7(3): e33877.<WBR>
doi:10.<WBR>1371/<WBR>journal.<WBR>pone.<WBR>0033877]</TD></TR></TBODY></TABLE></FONT></DIV><BR>
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<P class=MsoNormal><SPAN><FONT size=3><STRONG>Marc Imlay, PhD,</STRONG>
<U></U><U></U></FONT></SPAN></P>
<P class=MsoNormal><FONT size=3><B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: navy">Conservation biologist,
Park Ranger Office</SPAN></B><SPAN
style="COLOR: blue"><U></U><U></U></SPAN></FONT></P>
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<P class=MsoNormal><FONT size=3><B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: navy">Natural and Historical
Resources Division</SPAN></B><SPAN
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<P class=MsoNormal><FONT size=3><B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: navy">The Maryland-National Capital Park and
Planning Commission</SPAN></B><SPAN
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