The perfect example of the removal of a species whose range has expanded to 
protect an endangered species  is the killing of coyotes to enhance the 
recovery of the reintroduced red wolf in North Carolina.  They have tried 
killing, sterilization, and relocation of coyotes that either hybridized with 
or were perceived as competitors to the wolves.  Although this is slightly 
different because the wolves were completely extinct when the coyotes expanded 
their range. 
 
Cheers,
Lauren Nolfo-Clements
________________________________

From: Ecological Society of America: grants, jobs, news on behalf of stan moore
Sent: Sun 29-Apr-07 12:43 AM
To: ECOLOG-L@LISTSERV.UMD.EDU
Subject: draft recovery plan for northern spotted owls raises questions about 
management



The U.S. Fish and Wildlife Service has announced the completion and
availability of a new draft recovery plan for the northern spotted owl.  One
threat is emphasized primarily in this recovery plan, and it is a threat
that was essentially non-existent at the time the species was listed.  The
barred owl has experienced a long-term range expansion that has brought it
into virtually all habitat types occupied by spotted owls and now the barred
owl is considered a threat to the spotted owl.  The primary management
technique emphasized in the recovery plan is lethal control of barred owls
over vast area and in large numbers.  Much of this management (lethal
control) is for the stated purpose of experimenting to see how the
management might impact the listed species; in other words, the "threat" is
anecdotal.

Is anyone here aware of a precedent in endangered species protections and
management in which a competitive species has experienced a huge range
expansion during the period of listing resulting in a perceived threat to
the listed species?

I am aware that a year or more ago, a prominent spotted owl species expert
told me (and stated publicly, I believe) that it would be a practical
impossibility to kill barred owls sufficiently to protect spotted owls.  And
yet now that seems to be the priority of the Fish and Widllife Service for
recovering spotted owls in a vast geographic area.

Does this not constitute a de facto attempted reversal of a natural range
expansion of a native species?  Does this not mean in reality a permanent
program of killing barred owls, because if the shotgunning of barred owls is
brought to an end at some point in time, the expansion of the barred owl
population and threat to spotted owls will resume, leading to further or
future endangerment?

Something in the logic of this plan seems unworkable to me because the plan
only addresses this issue anecdotally, without exploring the long-term
ramifications of this management strategy, including looking past the
projected time of delisting of spotted owls.  It seems hard to believe that
spotted owls and barred owls cannot reach some sort of natural equilibrium
and the idea of a permanent program of killing barred owls just for being
barred owls is not something that makes a lot of sense to me, as much as I
want to see spotted owl recovery.  Is this the best we can do?

This recovery plan, in my view, has other serious weaknesses, but the
"shotgun management" approach is particularly distasteful to me in view of
the geographic and temporal scales that would be necessary.


Stan Moore     San Geronimo, CA     [EMAIL PROTECTED]

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