Invasive eating invasive is definitely easier for me to find on iNat. Here’s an example of one I found yesterday from Florida with an invasive giant ameiva eating an introduced brown basilisk, two species I don’t find all too often on iNat, nevertheless both in the same observation! https://www.inaturalist.org/observations/147801909
And then we have the native otter Lutra lutra which seems to feed here exclusively on the introduced red crayfish Procambarus clarkii. I only find the scat, which I haven’t photographed (so far). I suppose I should.
Can you find a definition of ‘invasive species’ that doesn’t mention them being from somewhere else? As in, something to do with their place of origin? I can’t. Nat Geo, US DOI, US NOAA…not exhaustive, but I’m stumped! Please help.
A good example is White-tailed Deer in eastern North America. Due to a lack of predators, they are eating away entire forests and extirpating entire plant species. They are a huge problem for both forest health and human populations (since car crashes can easily cause death). If they aren’t invasive, I don’t know what is honestly.
It’s a contradiction in terms. It’s saying that something invaded an area to which it is native. Cambridge dictionary defines “invade” as “to enter an area of activity in a forceful and noticeable way.” Meaning that entering is essential to the definition of invading. A native species cannot be said to be entering.
Typically considered invasive here, but here from natural spreading into new areas where they “should not” be. Even the freezing winters dont seem to be stopping them from spreading northward as was originally thought.
White tail deer I agree is a good example here. And then in comes chronic wasting disease. I would say they are forcibly & notably entering plenty of areas they shouldn’t be.
But in any case i think thats why the phrase usually is not “native invasive” but “natives acting invasively” which certainly happens when things are unbalanced.
They sound like a pest for sure. Why are they considered invasive? What is the minimum distance or obstacle that needs to be traversed or overcome before some critter is considered alien? That would surely help to define what is considered properly invasive.