9,547 reputation
11545
bio website zoology.ubc.ca/~matthey
location Vancouver, Canada
age
visits member for 1 year, 4 months
seen 44 mins ago

My name is Remi Matthey-Doret and I am a PhD Candidate at the University of British Columbia (UBC), Department of Zoology in the lab of Mike Whitlock. I am a theoretician passionate about population genetics and conservation genetics.

Please have a look to my webpage for more information.


10h
comment Evolution: One big population vs. many small populations
Nice answer (+1). As I said in my comment (and I might be wrong) I would tend to think that the difference between several small or one big population is totally negligible in this case because 1) $2\cdot N\cdot s$ will much large than $1$ anyway and 2) adaptation is mutations limited
23h
comment Evolution: One big population vs. many small populations
Here are my thoughts. I might be wrong. Such process are mainly limited by the availability of mutations. In consequence, as long as the product of the selection differential and the population size is high enough, it does not really matter whether you split your populations or not.
1d
comment Why do life savers hurt?
Welcome to Biology.SE! From your title, one does not expect this kind of question. You should edit it so that one knows what question to expect by reading the title.
1d
comment Are the Chromosomes organized in any meaningful way?
Welcome to Biology.SE! From wiki: "In classical genetics, synteny describes the physical co-localization of genetic loci on the same chromosome within an individual or species"
2d
revised Are transgenders born physically different from others?
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2d
answered Are transgenders born physically different from others?
2d
comment What does pain look like in wave form?
Sorry, it is not my field of expertise, I am not able to tell much more. But the picture shows what basically any neuronal message looks like in term of voltage through time along the axon. Different tactile perception may use different neurons I think (pain, touch, warm/cold) but all of these neurons, always send message through the same kind of electric waves.
2d
answered What does pain look like in wave form?
2d
comment What does pain look like in wave form?
Welcome to Biology.SE! You may want to have a look at action potential.
2d
comment General time reversible model of evolution and Felsenstein model
I never heard of these terms. To satisfy my curiosity and assuming that you have some reference, can you please provide a link to the definitions of these things (or to the original articles)? Time reversible model of evolution kinda sound like coalescent theory. Are you sure those are not the same thing? There is a very good book by John Wakely called Introduction to Coalescent Theory.
2d
answered What is the evolutionary purpose of white spots in nails and how can they be characterised due to Leukonychia?
Dec
16
revised What is Environmental Robustness? Is it different from plasticity?
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Dec
16
comment What is Environmental Robustness? Is it different from plasticity?
Also, it is a bit counter-intuitive to me to define plasticity as the speed at which phenotypic changes occur, rather than the magnitude of the change or the range of environment toward which phenotypic response occurs.
Dec
16
comment What is Environmental Robustness? Is it different from plasticity?
thanks for your answer. I copy-paste here the comment I made to ddiez "The concept of (genetic) robustness is further decoupled into subconcepts that are mutational robustness, developmental robustness and environmental robustness (and maybe some others). My question is about environmental robustness. I don't think Hansen meant genetic robustness when saying environmental robustness, but I think he rather meant some subset of robustness. I might be wrong though. I'll edit my question to clarify my understanding of the subconcepts of robustness."
Dec
16
accepted Definitions of robustness and canalization
Dec
16
revised What is Environmental Robustness? Is it different from plasticity?
added 271 characters in body
Dec
16
comment What is Environmental Robustness? Is it different from plasticity?
@ddiez Thanks for your answer. The concept of (genetic) robustness is further decoupled into subconcepts that are mutational robustness, developmental robustness and environmental robustness (and maybe some others). My question is about environmental robustness. I don't think Hansen meant genetic robustness when saying environmental robustness, but I think he rather meant some subset of robustness. I might be wrong though. I'll edit my question to clarify my understanding of the subconcepts of robustness.
Dec
16
comment Reason why sedative drugs stem from eastern countries and stimulating drugs from western ones
I think the 3rd point is relevant. The question is not about phylogenetic decorrelation and I don't aim at explaining Feslenstein's method of independent contrasts or the GLS approach. I just wanted to point out that species are not independent observations.
Dec
16
revised Reason why sedative drugs stem from eastern countries and stimulating drugs from western ones
added 291 characters in body
Dec
16
revised What is Environmental Robustness? Is it different from plasticity?
edited title