| Re: recreating eden on August 05, 2010 |
Reply / Edit |
Also, one has to consider the side effect....
In an ideal world, we would like to see the wolf introduced on the island, it establish itself as a healthy, front line predator, keep moose numbers in check where people are concerned, and foresters wring their hands in dismay of damaged timber values, and voila! Case closed.
Of course, we have to assume that (1) wolves will keep moose in check and (2) Moose will be the primary food source for the wolves becuase they are more plentiful.
Issue 1 may never occur, as moose populations in certain areas of the province may be kept in check, because wolves may predominate a relatively non-anthropegenic environment such as the Northern Peninsula, or the southwest coast of the island, where communities are relatively few or access to the interior is limited.
But what about a region such as the avalon? Could a viable wolf popluation live there? Also, would moose be crowded into less desireable regions where wolves keep away from (i.e. near populated regions). A million questions could arise from issue 1.
Now, for issue 2, the real pandora's box opens up. We assume that 2 main food sources would be either moose or caribou. We would like to assume that because of sheer numbers, moose would be the preferred prey.
But what if caribou are easier to catch? On a purely statistical inspection, whatever is the easiest to forage will probably become the primary food source. Foraging not only includes population density, but prey population dispersal and convergence, lifestyle patterns, and breeding patterns, to name a few. If caribou become the top priority (move in herds for part of the year, migration patterns, crowding, define calving grounds, etc.), then we may put more pressure on a species that is already under pressure.
Look at the red squirrel. Since it's introduction to the province, there has been speculation that is out-competing local bird species that forage black spruce seeds ( e.g. Newfoundland Red Crossbill). There have been several papers published over the years to discuss such ramifications, but of course, that may more of a philosophical query at the moment (other aspects, such as forest extraction may be also or the primary culprit).
No one foresaw such intraspecific competition when the squirrel was introduced.