My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
9722
CWCB
>
UCREFRP
>
Copyright
>
9722
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/11/2009 11:28:21 AM
Creation date
8/10/2009 5:17:40 PM
Metadata
Fields
Template:
UCREFRP
UCREFRP Catalog Number
9722
Author
Hilderbrand, R.H., A.C. Watts and A.M. Randle.
Title
The myths of restoration ecology.
USFW Year
2005.
USFW - Doc Type
Ecology and Society
Copyright Material
YES
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
11
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
Show annotations
View images
View plain text
<br />'" <br /> <br />command and control invariably decreases system <br />resilience by reducing the range of natural variation <br />and adaptive capacity for the system to respond to <br />disturbances (Gunderson 2000). As resilience <br />decreases, the likelihood of a disturbance shifting <br />the system into an undesired or degraded state <br />increases, and control is wrested from the manager. <br /> <br />Practice of Command and Control recalls the story <br />of Sisyphus, one of the most unenviable characters <br />in Greek mythology because he is compelled by the <br />Gods to forever push a heavy boulder uphill. Just as <br />he nears the top, Sisyphus becomes exhausted, and <br />the boulder rolls back down to the plain below, <br />where Sisyphus must begin again. Like Sisyphus, <br />we can become trapped in an endless cycle of effort <br />to compel ecosystems to remain in single, transient, <br />or unstable states, resulting in repeated episodes of <br />surprise and crisis that can mimic the ball-in-cup <br />analogy of system dynamics (Lewontin 1969, <br />Holling 1973, Beisner et aL 2003), with the ball <br />rolling around the cup and away from the manager's <br />desired state. The Sisyphus Complex emerges when <br />we act through Command and Control to hold a <br />dynamic system static or force a system to exist in <br />a transient state. In any restoration, some amount of <br />Command and Control is required to perform the <br />restoration. Additional nudges to physical or <br />biological components will likely occur in the years <br />after the restoration as well. There is nothing wrong <br />with some tinkering-we cannot exist without <br />having some effect on our surroundings. Actions to <br />be avoided are those that are long term in nature or <br />will decrease the natural range of variability in key <br />processes, such as fIre regime or hydrology. <br /> <br />The Sisyphus Complex often occurs when the <br />dominant, large-scale drivers of the system have <br />changed and are either not noticed or conveniently <br />ignored. When we fall into the Sisyphus Complex, <br />we become fIxated on treating symptoms rather than <br />the root of the problem and so become susceptible <br />to failure. Urban stream restorations often occur in <br />response to severely eroded stream channels, and a <br />more flashy hydrograph that results from increases <br />in impervious surface area higher in the watershed. <br />Many such restorations fail (sometimes multiple <br />times) despite tremendous expense and effort, <br />because the altered driver (the hydrograph) and the <br />root cause (impervious surfaces) were not <br />addressed. Other general examples include coastal <br />beach restoration in the face of ongoing, natural <br />erosion; rare species stocking/reintroduction <br />programs that ignore the root causes of rarity; and <br /> <br />Ecology and Society 10(1): 19 <br />htto:/ /www.ecolol!.Vandsocietv.orl!/voII0/issl/artI9/ <br /> <br />attempting to direct succession to end points <br />incompatible with environmental conditions. <br />Sometimes the Sisyphus Complex results from <br />social or political mandates to do something despite <br />credible science to the contrary. In these situations, <br />we must make every effort for science to influence <br />decision making so that the inevitable repeated <br />failures are not perceived as employment <br />justification or incompetence on the part of science. <br /> <br />MOVING BEYOND THE MYTHS <br /> <br />Myths have value because they help us to organize <br />and understand complex systems and phenomena, <br />and provide a starting point toward the restoration <br />and management of degraded ecosystems. We feel <br />this is why the myths of restoration exist and persist. <br />We hope that proposing these myths (whether the <br />reader agrees with them or not) will begin a dialog <br />leading to a deeper thinking about and greater <br />understanding of natural systems and advancing the <br />science of restoration ecology and management. <br /> <br />Identifying myths has several implications for <br />restoration design. A common theme in the myths <br />is a failure to recognize and address uncertainty. <br />Ignoring uncertainty often results in surprise and <br />failure, because we have not created a system <br />capable of adapting or responding to future drivers <br />or chance events, and we are unable to exert ultimate <br />control over the system. An alternative approach <br />would be designing for resilience by planning for <br />surprise. Although we cannot anticipate all future <br />events, we can manage and restore in ways that <br />allow for uncertainty. Planning forresilience should <br />allow systems a greater ability to deal with and <br />recover from surprise and future change by focusing <br />on a diversity of approaches, functions, and taxa. <br /> <br />When viewed in the context of designing for <br />resilience, restorations become experiments in <br />adaptive management or adaptive restoration <br />(Zedler 2000b). Restoration projects with decision <br />points along the way allow for critical assessment <br />and possible intervention with contingency plans if <br />things are not proceeding appropriately. Rapid <br />learning can also be achieved by using a diversity <br />of restoration techniques and approaches likely to <br />be successful within the larger restoration. <br />Assessing the performance of multiple approaches <br />may increase cost, but it allows for testing multiple <br />hypotheses and adaptive learning, and may cost less <br />in the long run. If more than one approach is <br />
The URL can be used to link to this page
Your browser does not support the video tag.