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Message
re: Invasive Louisiana Red Swamp Crawfish
Posted on 8/4/17 at 7:04 am to redstick13
Posted on 8/4/17 at 7:04 am to redstick13
There are over 30 different species of crawfish native to Louisiana ALONE. No telling how many more there are nationwide. Just because there are crawfish that can survive the winter in a given place, doesn't mean that red swamp crawfish can survive.
The red swamp crawfish has turned up in other northern areas, but I am not sure of the status of any of those populations.
The red swamp crawfish has turned up in other northern areas, but I am not sure of the status of any of those populations.
0
Posted on 8/4/17 at 8:10 am to AbuTheMonkey
quote:
Wouldn't the winter freeze the frick out of them and kill them?
Apparently not...went fishing in Ohio and saw some. It gets damn cold there too! I tried catching a couple with my fishing line but they were wary and let go of the bait as soon as I started to pull them up.
Posted on 8/4/17 at 9:08 am to Cowboyfan89
quote:
The difference is, that natural expansion is a gradual process...an introduction is not.
quote:
coyotes
I'd consider coyotes a "natural" expansion brought on by the actions of man, compared to the others in your list.
This post was edited on 8/4/17 at 9:10 am
Posted on 8/4/17 at 9:18 am to Sasquatch Smash
But if the actions of man had not removed any competition for coyotes, the expansion would not have occurred in the way it did. It may not have occurred at all.
That is my point. It may be "more natural" than the others, but only because we didn't move them ourselves. We did, however, make it much easier for them.
To my knowledge, the eastward expansion of black-bellied whistling ducks and white-winged doves has nothing to do with humans. Those expansions ARE natural.
That is my point. It may be "more natural" than the others, but only because we didn't move them ourselves. We did, however, make it much easier for them.
To my knowledge, the eastward expansion of black-bellied whistling ducks and white-winged doves has nothing to do with humans. Those expansions ARE natural.
Posted on 8/4/17 at 9:24 am to Cowboyfan89
quote:
But if the actions of man had not removed any competition for coyotes, the expansion would not have occurred in the way it did. It may not have occurred at all.
That is my point. It may be "more natural" than the others, but only because we didn't move them ourselves. We did, however, make it much easier for them.
Yeah, I know, removing wolves and whatnot. Plus, we built them bridges over the Mississippi River. But that's still more a case of something filling in a previously occupied niche. Quite a bit different than dropping in something totally foreign that would have had zero chance of getting there without assistance from man.
quote:
To my knowledge, the eastward expansion of black-bellied whistling ducks and white-winged doves has nothing to do with humans. Those expansions ARE natural.
That's cuz those bastards can fly. They don't need us! Haha. Same can be said for the westward expansion of Cattle Egrets. They colonized from over an ocean.
Also, don't forget about the expansion of Inca Doves as Common Ground Doves decline. (I believe this to be the case, at least.)
This post was edited on 8/4/17 at 9:27 am
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