Comments on: Allen’s Rule, Phenotypic Plasticity, and The Nature of Evolution https://gregladen.com/blog/2012/10/20/allens-rule-phenotypic-plasticity-and-the-nature-of-evolution/ Wed, 06 Apr 2022 00:56:40 +0000 hourly 1 https://wordpress.org/?v=6.4.8 By: Alien Size Calculations | uthinki https://gregladen.com/blog/2012/10/20/allens-rule-phenotypic-plasticity-and-the-nature-of-evolution/#comment-495484 Thu, 09 Apr 2015 16:01:03 +0000 http://scienceblogs.com/gregladen/?p=13793#comment-495484 […] many others can all influence a species. Accounts range from things such as Bergmann’s rule and Allen’s rule; and would the aliens be endotherms or ectotherms? Breaking through the jargon would suggest that […]

]]> By: Lessons from limb lab (activity) | Lawn Chair Anthropology https://gregladen.com/blog/2012/10/20/allens-rule-phenotypic-plasticity-and-the-nature-of-evolution/#comment-495483 Sun, 16 Nov 2014 13:59:35 +0000 http://scienceblogs.com/gregladen/?p=13793#comment-495483 […] past week’s lab looked at limb proportions within our classroom, in the context of “Allen’s rule” – in colder climates, animals tend to have relatively shorter distal limbs […]

]]> By: Barack Obama To Turn To His 50% Phenotype White Side for Next Four Years • ChristWireChristWire https://gregladen.com/blog/2012/10/20/allens-rule-phenotypic-plasticity-and-the-nature-of-evolution/#comment-495482 Sat, 10 Nov 2012 20:37:05 +0000 http://scienceblogs.com/gregladen/?p=13793#comment-495482 […] we have that ability, in some of us, there is an ability to use the skin like a chameleon.  But to change the skin phenotype, these people must also alter key chemicals in the biochemical pathway that cascades to the […]

]]> By: SOS presents — the Carnival of Evolution #53! | Sorting out Science https://gregladen.com/blog/2012/10/20/allens-rule-phenotypic-plasticity-and-the-nature-of-evolution/#comment-495481 Fri, 02 Nov 2012 04:11:01 +0000 http://scienceblogs.com/gregladen/?p=13793#comment-495481 […] Laden talks about Allen’s Rule, Phenotypic Plasticity, and The Nature of Evolution at Greg Laden’s Blog (logically enough), and it includes a downloadable PDF for teachers […]

]]> By: Lars https://gregladen.com/blog/2012/10/20/allens-rule-phenotypic-plasticity-and-the-nature-of-evolution/#comment-495480 Mon, 22 Oct 2012 23:47:35 +0000 http://scienceblogs.com/gregladen/?p=13793#comment-495480 This one’s always bothered me. If plasticity is buffering the effect of natural selection on the phenotype, then why would there be any effect upon the population’s gene pool over time? Why would Canadians ever develop furry heads if hats kept both the hirsute and the bald equally warm (and attractive)? You explained it clearly, Greg, but it makes no more sense to me than it ever did.

]]> By: bks https://gregladen.com/blog/2012/10/20/allens-rule-phenotypic-plasticity-and-the-nature-of-evolution/#comment-495479 Mon, 22 Oct 2012 12:04:28 +0000 http://scienceblogs.com/gregladen/?p=13793#comment-495479 It’s always nature AND nurture.

–bks

]]> By: Jim Thomerson https://gregladen.com/blog/2012/10/20/allens-rule-phenotypic-plasticity-and-the-nature-of-evolution/#comment-495478 Sun, 21 Oct 2012 19:58:50 +0000 http://scienceblogs.com/gregladen/?p=13793#comment-495478 Widely distributed temperate fish species, the bluegill, for example, tend to show higher numbers of fin rays and scales in the northern part of the range. To my knowledge (not current) the fish which shows the greatest effect of different temperatures during development is the tropical to sub tropical Kryptolebias mormoratus. I compared samples of the related Rivulus hartii from different habitats in Venezuela. Fish from mountain streams with temps around 72F compared with fish from coastal marshes, temps around 85F, showed no significant differences in fin ray and scale counts. I was kind of disappointed.

]]>