I totally agree that most sub-species should be dropped. I'm a botanical taxonomist by schooling and a naturalist by profession. I have found sub-specific monikers to be grossly applied to the smallest of differences and most "DNA" work to be misleading at best and inaccurate at worst.
The analysis that I'm looking for is not usually presented with the paperwork that accompanies the papers claiming new or revised sub-species. What do I mean? If you take a group of animals ( lets say group A)that you believe to be "geneticly" different than another group (B)how do you prove a sub-species?
1. You extract DNA
2. You use enzymes to replicate the DNA so you have enough to test
3. You use another enzyme to chop the DNA into discrete pieces
4. You run the chopped DNA through electrophoresis to see how the pieces resort themselves.
If the pieces from group A sort differently than B people will say "New sub-species". The problem is that in step 3 you have no idea exactly what was cut into pieces. If the visual difference between group A and B is a collection of "linked" (meaning on same chromesome so they tend to transfer together) alleles then you might only be recording the difference between blonde hair and brown hair and not something more meaningful. Because in-depth analysis of the DNA techniques are not presented nor are they always understood by the researcher I find most DNA "proof" to be highly suspect.
I find the whole concept of a subspecies to be suspect and fairly worthless. common kingsnakes are no exception we have clusters of certain physical traits that we call goini or getula or holbrooki but they are all common kingsnakes. Locality is the key. A Maryland kingsnake is just that a snake found in Maryland. It can breed with any other kingsnake it happens to meet anywhere they happen to meet. The whole landscape of the common kingsnake is one of gradual change from adjoining group to adjoining group with sometimes very broad bands of "intergrades" which are just areas where the alleles are mixing.
I hope this came across as a coherent idea and not just some random scribblings. I'm taking a much needed day in the office
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Bob Bull
1.3 L.g.getula MD Locality
3.4 L.g.g GA locality
2.3 L.g.g albino
1.4 L.g.g het albino
1.2 L.g.g P-het albino
1.0 L.g.floridana super peanutbutter
0.2 L.g.f. peanutbutter
1.0 L.g.f. N.E. axanthic
1.0 L.g.nigrita
1.1 L.t.hondurensis het hypo-melanistic