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Disappearance of wildflowers may have doomed Ice Age giants

PostPosted: Thu Feb 06, 2014 1:59 am
by circumspice
Not sure where to put this, since it's about northern hemisphere megafauna.

”Disappearance of wildflowers may have doomed Ice Age giants”

http://mobile.reuters.com/article/idUSB ... S&irpc=942

Re: Disappearance of wildflowers may have doomed Ice Age gia

PostPosted: Thu Feb 06, 2014 8:00 am
by Minimalist
Interesting to be sure but it immediately raises the question of why earlier advances/retreats of the ice did not have similar effects?

Re: Disappearance of wildflowers may have doomed Ice Age gia

PostPosted: Thu Feb 06, 2014 9:07 am
by circumspice
Maybe it did. Maybe we haven't found the fossil evidence for it yet?

Re: Disappearance of wildflowers may have doomed Ice Age gia

PostPosted: Thu Feb 06, 2014 9:27 am
by Minimalist
It couldn't have killed them off or they wouldn't have been around to die out again in 10,000.

My suspicion is that it is a mistake to look for "the one big reason." More likely a cascade of events including climate change ( a repeating variable,) human hunting ( a new variable, perhaps) and even Firestone's asteroid/comet ( a one-time variable) coming together. Start introducing new variables onto a population already under stress from climate change and anything is possible.

Re: Disappearance of wildflowers may have doomed Ice Age gia

PostPosted: Thu Feb 06, 2014 5:35 pm
by circumspice
I picture it as an ebb & flow pattern until humans entered the equation. As the climate changes, the flora changes along with it. The fauna either follows the edibles or they die out. Like the advance & retreat of glaciers. Once humans enter the picture, it becomes a game changer. Megafauna have low birth rates. Change some of the variables, you create a situation that is difficult, if not impossible to recover from.

Re: Disappearance of wildflowers may have doomed Ice Age gia

PostPosted: Sun Feb 09, 2014 8:21 pm
by uniface
Nice find !