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jim mallet
natural historian, PhD Texas, native Londoner. (Profile pic from Mauro Cutrona )
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jim mallet 15h
Well that is great news. The PhD was I believe an import from the German system that was eventually adopted widely in the rest of the world. A PhD is a more advanced degree than the BA/BSc, but it's not a guarantee of quality, as we well know.
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jim mallet 15h
Good lord! Whatever will make of all this sympatric speciation in Anolis?!!
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jim mallet 15h
Replying to @vsbuffalo @arxiv
John Maynard Smith also would not be allowed to publish. He never did a PhD!
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jim mallet Dec 13
Hmm. Perhaps twitter not the ideal medium for this. Also, I appear to have been tweeting on the wrong account!
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jim mallet Dec 13
It must be kind of galling, Tom, that your most cited publication (a/c Google Scholar) is the one you least believe in now!
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jim mallet Dec 12
Replying to @michaelgharvey
2/2 and only weakly (via a square root) dependent on selection. So a strongly selected (s=0.1) and a weakly selected (s=0.01) cline will differ only by ~3x in width
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jim mallet Dec 12
Replying to @michaelgharvey
1/2 The reason for this seemingly astonishing finding is simple. At equum, the width of a cline, w = k σ/√s, where k is a constant "of order 1," σ is dispersal distance, and s is selection pressure. So w is directly proportional to dispersal distance...
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jim mallet Dec 11
Yeah, it's cool that a "model organism" turns out to be two very similar looking species that are really quite divergent!
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jim mallet retweeted
Hugo Rifkind Dec 10
Replying to @hugorifkind
The thing is, the best way to understand Theresa May’s predicament is to imagine that 52 percent of Britain had voted that the government should build a submarine out of cheese.
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jim mallet Dec 10
Best deal of all - stay in!
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jim mallet retweeted
Brian Cox Dec 10
We are in control. We can revoke article 50 and retain control of our borders (we are not in schengen), our money (we are not in the Euro) and our laws (parliament is sovereign). This deal - the best deal of any EU member state by a mile - is available. Let’s put it to voters.
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jim mallet retweeted
EU Court of Justice Dec 10
: UK is free to unilaterally revoke the notification of its intention to withdraw from the EU – Case C-621/18 Wightman
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jim mallet Dec 9
Since your followers normally don't read anything but nonsense
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jim mallet Dec 8
Replying to @SandyKnapp
Happy birthday, Sandy! It looks fun
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jim mallet Dec 8
Their long probosces were like power drills, and the flight muscle vibration of the thorax was acting as the power. Bzzzz! they drilled my arm. Peccary skin is a lot tougher than mine, and I guess that's why they use this method. In SA you've many big animals with thick skin!
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jim mallet Dec 8
A couple of flies landed on my arms, and I saw they were tabanids. What were they going to do? They tilted their bodies upwards, put their probosces downwards and then vibrated their thorax...
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jim mallet Dec 8
I don't know how they do it in South Africa, but I discovered this in Costa Rica with another species of long-"tongued" horse fly. (I think long proboscis would be more descriptive). I was sitting in the forest, when some collared peccaries came by ...
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jim mallet Dec 8
I've visited here, and I understand this is one place where Heliconius and other occur this side of the border with Mexico. Sad, and totally unnecessary.
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jim mallet Dec 8
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jim mallet Dec 7
Replying to @ymalhi @BarkerLab
Even so, it still seems terrifying that humans form around 10x the biomass of all wild mammals
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