Announcement
Collapse
Natural Science 301 Guidelines
This is an open forum area for all members for discussions on all issues of science and origins. This area will and does get volatile at times, but we ask that it be kept to a dull roar, and moderators will intervene to keep the peace if necessary. This means obvious trolling and flaming that becomes a problem will be dealt with, and you might find yourself in the doghouse.
As usual, Tweb rules apply. If you haven't read them now would be a good time.
Forum Rules: Here
As usual, Tweb rules apply. If you haven't read them now would be a good time.
Forum Rules: Here
See more
See less
Baffling genetic barrier in some closely related species prevents interbreding
Collapse
X
-
Baffling genetic barrier in some closely related species prevents interbreding
Glendower: I can call spirits from the vasty deep.
Hotspur: Why, so can I, or so can any man;
But will they come when you do call for them? Shakespeare’s Henry IV, Part 1, Act III:
go with the flow the river knows . . .
Frank
I do not know, therefore everything is in pencil.Tags: None
-
I've heard of these before. IIRC they do interbreed, but the crossbreeds are weaker than either true breed. Thus there's selection pressure against interbreeding. What you've quoted suggests that being heterozygous for that DNA segment is bad news. Though if there's so little difference between the birds, I can't see how there can be much that would provide any breeding preference, so maybe there isn't any substantial barrier yet, it's just that the downside of doing so keeps the populations pure.
RoyJorge: Functional Complex Information is INFORMATION that is complex and functional.
MM: First of all, the Bible is a fixed document.
MM on covid-19: We're talking about an illness with a better than 99.9% rate of survival.
MM on climate change: Looking at the historical temperature data in my region over the past ten years shows that temperatures have been stable ...
mikewhitney: What if the speed of light changed when light is passing through water? ... I have 3 semesters of college Physics.
Comment
-
The differences in colouration might play a part. Or maybe they don't like each others songs.1Cor 15:34 Come to your senses as you ought and stop sinning; for I say to your shame, there are some who know not God.
.⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛
Scripture before Tradition:
but that won't prevent others from
taking it upon themselves to deprive you
of the right to call yourself Christian.
⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛⊛
Comment
-
Subscribing so I can reread this later. I don't get it yet."He is no fool who gives what he cannot keep to gain that which he cannot lose." - Jim Elliot
"Forgiveness is the way of love." Gary Chapman
My Personal Blog
My Novella blog (Current Novella Begins on 7/25/14)
Quill Sword
Comment
-
Not totally new. I read something like this before concerning tropical birds, and the relationship between varieties, subspecies and closely related species, but was only observations in the wild and certain closely related groups did not appear to interbred.Last edited by shunyadragon; 08-25-2014, 07:07 PM.Glendower: I can call spirits from the vasty deep.
Hotspur: Why, so can I, or so can any man;
But will they come when you do call for them? Shakespeare’s Henry IV, Part 1, Act III:
go with the flow the river knows . . .
Frank
I do not know, therefore everything is in pencil.
Comment
-
Found one of the references, but the text or published paper:
2012 J. Dylan Maddox, “Inbreeding avoidance, genetic neighborhoods, and gene flow in a tropical bird with limited dispersal" Florida Museum of Natural History.
Still looking . . .Glendower: I can call spirits from the vasty deep.
Hotspur: Why, so can I, or so can any man;
But will they come when you do call for them? Shakespeare’s Henry IV, Part 1, Act III:
go with the flow the river knows . . .
Frank
I do not know, therefore everything is in pencil.
Comment
-
Originally posted by klaus54 View PostSo, Jorge was right all along.
Capital "E" Evolution is pure evil metaphysics.
I shouda listened to him,
K54"When the Western world accepted Christianity, Caesar conquered; and the received text of Western theology was edited by his lawyers…. The brief Galilean vision of humility flickered throughout the ages, uncertainly…. But the deeper idolatry, of the fashioning of God in the image of the Egyptian, Persian, and Roman imperial rulers, was retained. The Church gave unto God the attributes which belonged exclusively to Caesar."
— Alfred North Whitehead
Comment
-
-
Dur!
"He is no fool who gives what he cannot keep to gain that which he cannot lose." - Jim Elliot
"Forgiveness is the way of love." Gary Chapman
My Personal Blog
My Novella blog (Current Novella Begins on 7/25/14)
Quill Sword
Comment
-
Originally posted by Jorge View PostYayyyyyyy !!!!!!! He's back !!!!!!!!!! Mr "S" himself !!!!!!!!! He was missed!
Jorge"When the Western world accepted Christianity, Caesar conquered; and the received text of Western theology was edited by his lawyers…. The brief Galilean vision of humility flickered throughout the ages, uncertainly…. But the deeper idolatry, of the fashioning of God in the image of the Egyptian, Persian, and Roman imperial rulers, was retained. The Church gave unto God the attributes which belonged exclusively to Caesar."
— Alfred North Whitehead
Comment
-
Originally posted by phank View PostOne implication of this is, it could require amazingly small changes to trigger a speciation branching event. Something that causes slightly different coloration, pheromones, mating displays, etc.To say that crony capitalism is not true/free market capitalism, is like saying a grand slam is not true baseball, or like saying scoring a touchdown is not true American football ...Stefan Mykhaylo D
Comment
Related Threads
Collapse
Topics | Statistics | Last Post | ||
---|---|---|---|---|
Started by rogue06, 11-28-2023, 06:19 PM
|
1 response
15 views
1 like
|
Last Post
by rogue06
11-28-2023, 06:23 PM
|
||
Started by shunyadragon, 11-28-2023, 03:28 PM
|
4 responses
25 views
0 likes
|
Last Post
by shunyadragon
11-29-2023, 11:52 AM
|
||
Started by Catholicity, 11-28-2023, 12:14 PM
|
26 responses
157 views
1 like
|
Last Post
by rogue06
Yesterday, 09:57 AM
|
||
Started by shunyadragon, 11-28-2023, 09:01 AM
|
15 responses
82 views
0 likes
|
Last Post
by Sparko
12-01-2023, 10:36 AM
|
||
Started by shunyadragon, 11-17-2023, 11:35 PM
|
20 responses
126 views
0 likes
|
Last Post
by Diogenes
12-02-2023, 02:32 PM
|
Comment