Taxacom: invaisive species
John Grehan
calabar.john at gmail.com
Sat Nov 26 19:23:11 CST 2022
2022
But 'invasive' species are 'introduced', and in this sense are just as
displaced. What happens after is relative (how does one know when the
threshold of 'outcompeting' and 'displacing' natives?). The term 'invasive'
is also problematic in that the taxa in question never 'invaded' in the
active sense, but were originally displaced by human activity. Even
'native' taxa can become 'invasive' under new environmental conditions
within the native habitat or region.
On Sat, Nov 26, 2022 at 5:03 PM Elena Kupriyanova <
Elena.Kupriyanova at australian.museum> wrote:
> "Displaced relatives" are introduced species, not invasive. The species
> become invasive after they establish viable populations outside their
> native ranges and start taking over, often outcompeting and displacing
> natives. I know, it sounds very familiar in the context of human history of
> both North and South America
> :
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> ------------------------------
> *From:* Taxacom <taxacom-bounces at lists.ku.edu> on behalf of John Grehan
> via Taxacom <taxacom at lists.ku.edu>
> *Sent:* Sunday, November 27, 2022 4:58:42 AM
> *To:* taxacom <taxacom at mailman.nhm.ku.edu>
> *Subject:* Taxacom: invaisive species
>
> On the assumption that some taxonomists on this list work on conservation
> issues, a perspective I heard about might be of interest. A researcher in
> the US with indigenous background (Hernandez if I have the name correct)
> suggested that 'invasive' was a term that separated people from the
> environment, and that a better term would be 'displaced relatives'
> (relatives of the native taxa). She also suggested that the term
> conservation is also tied up with separation of people and environment
> (just think of the National Park system). Instead she approaches this as a
> subject of environmental healing.
>
> John Grehan
>
> --
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