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seen Mar 28 at 20:01

Mar
28
revised Knockout Rat Phenotype Database?
added 618 characters in body
Mar
28
asked Knockout Rat Phenotype Database?
Feb
24
awarded  Popular Question
Feb
8
awarded  Popular Question
Dec
16
awarded  Yearling
Oct
1
revised Would Bubling Oxygen Through “Dead Zones” Like A Fish-Tank Make Much Difference?
deleted 1271 characters in body
Oct
1
revised Would Bubling Oxygen Through “Dead Zones” Like A Fish-Tank Make Much Difference?
added 631 characters in body
Oct
1
answered Would Bubling Oxygen Through “Dead Zones” Like A Fish-Tank Make Much Difference?
Sep
30
comment Would Bubling Oxygen Through “Dead Zones” Like A Fish-Tank Make Much Difference?
The iron dumping was shown to be quickly removed from the seawater through its incorporation into some component of the algae that then sank: much like nitrogen. I think the iron might have been incorporated into a shell of some sort as part of the algae--possibly mixed in with CaCO3 or something. That was the reason Iron dumping was abandoned: it was hoped the iron would remain in the ocean ecosystem for longer.
Sep
29
comment Would Bubling Oxygen Through “Dead Zones” Like A Fish-Tank Make Much Difference?
@shigeta The goal is to remove nitrogen from the river water, since in the open ocean nitrogen is the limiting reagent for algal growth.
Sep
26
comment Would Bubling Oxygen Through “Dead Zones” Like A Fish-Tank Make Much Difference?
@shigeta If the algae continue to grow and consume oxygen, they they are also consuming nutrients that would otherwise contribute to algal blooms and/or dead zones. The idea is essentially to exhaust the runoff nitrogen through speeding algae growth - not necessarily to instantaneously solve the problem of dead zones. This should reduce the extent of dead zones.
Sep
25
asked Would Bubling Oxygen Through “Dead Zones” Like A Fish-Tank Make Much Difference?
Sep
15
comment How Do Acid and Base Loving Plants Get Enough PO4?
Phycology would seem to be an ideal place to study mechanisms of phosphate absorption at varying pH.
Sep
15
revised How Do Acid and Base Loving Plants Get Enough PO4?
added 157 characters in body
Sep
15
asked How Do Acid and Base Loving Plants Get Enough PO4?
Jul
14
asked Can Squirrels Eat Every Mushroom?
May
29
comment Good source that explains the evolution of single-celled organisms “from scratch”
@C.LawrenceWenham Did it fit the bill?
May
29
comment If Evolution Is In Progress, Why Fight Extinction?
I deliberately seek to avoid a specific case, because such a case would constrain the topic to a narrow set of preconditions, which tend to obscure the preconceptions of those engaging in discussion. For example: your answer and comments have shown how it is actually humanism and not evolution that leads us to preserve endangered species. Every point you have made is about how extinction will affect us, not evolutionary progress, which we cannot hope to assist since by interfering with a system we disrupt causality. Please forgive my bluntness.
May
29
comment If Evolution Is In Progress, Why Fight Extinction?
The "fight against global warming" has less chance of succeeding than the "war on drugs." both are fighting economics, which is supposedly the foundation of evolution. I would view an invasive species as "short sighted consumption" at the cost of long term planning, which is why I asked this questions.
May
29
comment If Evolution Is In Progress, Why Fight Extinction?
I agree with your last two paragraphs, but not the first two. Calling genetic drift a "mechanism of evolution" is inaccurate at best since no new genes are produced. If evolutionary history cannot be recovered, as you say, then how have various traits "re-evolved" multiple times throughout history? It is only the "inferior" combinations of those traits that (hopefully) will never re-emerge. This is where I fundamentally disagree with evolution. Each creature is majestic in its complexity and to merely call it a "mistake" and "inferior" needing to go extinct for life to march forward is mad.