Don, I am in complete agreement about the term Native Invasive. It is an oxymoron and should be abandonned. The concept trying to be expressed is interesting however. Consider that something might cause the explosive increase in the number of one native species to the detriment of others that would normally be expected in an area. In other examples a single species may be present in greater numbers than in the adjacent areas because of some specific type of disturbance. This condition may persist for a long time or be relatively ephemeral min nature. In this regard I am thinking of the Marion Brooks Natural Area in PA. Here the location was logged, then a massive fire burnt the area destroying most of the organic material and soil structure. the area was pioneered by white birch. This occurred 80 or 90 years ago and the area persists as a stand of almost pure white birch. other species are not recolonizing the area as might be expected in a normal disturbed region.
Another example to a degree might be patches of forests that have limited species diversity because of alleopathy of some of the species present. If some of these limited areas were to expand it would be an invasive-like effect that limited the diversity of species present in the area compared to the normal forest. I guess I am just rambling at this point. Ed Join the Primal Forests - Ancient Trees Community at: http://primalforests.ning.com/ ----- Original Message ----- From: DON BERTOLETTE To: [email protected] Sent: Thursday, December 11, 2008 3:12 PM Subject: [ENTS] Re: Shrub-layer an empty niche? Ryan/Ed- From my perspective, the phrase "native invasive" is a contradiction in terms, and should be discontinued immediately, lest it gain coinage by being "Google-able"....;>} --~--~---------~--~----~------------~-------~--~----~ Eastern Native Tree Society http://www.nativetreesociety.org You are subscribed to the Google Groups "ENTSTrees" group. To post to this group, send email to [email protected] To unsubscribe send email to [email protected] For more options, visit this group at http://groups.google.com/group/entstrees?hl=en -~----------~----~----~----~------~----~------~--~---
