Evolution - In Two Places

Message boards : Science (non-SETI) : Evolution - In Two Places
Message board moderation

To post messages, you must log in.

1 · 2 · Next

AuthorMessage
W-K 666 Project Donor
Volunteer tester

Send message
Joined: 18 May 99
Posts: 19012
Credit: 40,757,560
RAC: 67
United Kingdom
Message 1522900 - Posted: 31 May 2014, 3:51:37 UTC

Crickets in two places fall silent to survive

Silent, "flatwing" crickets appeared independently on two islands over 100km apart

The idea that the trait had evolved twice, at almost the same time, seemed far-fetched. "It still seems amazing to me," Dr Bailey told BBC News.

The first clue was an observation that the mutant, silenced wings on the two islands had two different shapes.
ID: 1522900 · Report as offensive
Profile ML1
Volunteer moderator
Volunteer tester

Send message
Joined: 25 Nov 01
Posts: 20140
Credit: 7,508,002
RAC: 20
United Kingdom
Message 1523005 - Posted: 31 May 2014, 14:51:39 UTC - in response to Message 1522967.  

Darwin's Galapagos finches all over again!

And a spectacular example for how surprisingly quickly.

And a clear example of 'convergent' evolution also! That strongly suggests that there are many routes for evolution to home in onto a specific end result.


Thanks for that,

Keep searchin',
Martin
See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)
ID: 1523005 · Report as offensive
Batter Up
Avatar

Send message
Joined: 5 May 99
Posts: 1946
Credit: 24,860,347
RAC: 0
United States
Message 1523770 - Posted: 2 Jun 2014, 18:53:32 UTC

Not so fast. The females have yet to adapt. When all the real males are gone will the females be able to adapt? This is still early as the crickets and flies are not native to Hawaii.

Because they are mute, these "flatwing" male crickets are hidden from the parasitoid flies and escape being eaten by maggots. That triumph comes at a cost, however, since finding a mate is tricky without a voice. The silent types loiter near the few males still singing away, and intercept females for themselves.

ID: 1523770 · Report as offensive
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34744
Credit: 261,360,520
RAC: 489
Australia
Message 1523871 - Posted: 2 Jun 2014, 22:24:00 UTC - in response to Message 1523770.  

Not so fast. The females have yet to adapt. When all the real males are gone will the females be able to adapt? This is still early as the crickets and flies are not native to Hawaii.

Because they are mute, these "flatwing" male crickets are hidden from the parasitoid flies and escape being eaten by maggots. That triumph comes at a cost, however, since finding a mate is tricky without a voice. The silent types loiter near the few males still singing away, and intercept females for themselves.

The females don't make any noise with theirs so they don't get attacked by the fly.

Cheers.
ID: 1523871 · Report as offensive
Batter Up
Avatar

Send message
Joined: 5 May 99
Posts: 1946
Credit: 24,860,347
RAC: 0
United States
Message 1523897 - Posted: 2 Jun 2014, 23:57:27 UTC - in response to Message 1523871.  

The females don't make any noise with theirs so they don't get attacked by the fly.
The females have not adapted to finding silent males though. The silent males cluster around the remaining chirping males most likely still going through the motions of chirping. I see this as a short term evolutionary success that should have failed; it will fail in the long run unless the females adapt to finding silent mates. This wont be easy or quick as there won't be a need until it is too late.
ID: 1523897 · Report as offensive
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34744
Credit: 261,360,520
RAC: 489
Australia
Message 1523901 - Posted: 3 Jun 2014, 0:30:49 UTC

Have you ever thought that it's the females that are bringing along this adaption in the males while still allowing a few chirpers to be born so that they can mate with the silent 1's hanging around those chirpers?

Cheers.
ID: 1523901 · Report as offensive
Batter Up
Avatar

Send message
Joined: 5 May 99
Posts: 1946
Credit: 24,860,347
RAC: 0
United States
Message 1523939 - Posted: 3 Jun 2014, 3:58:23 UTC - in response to Message 1523901.  
Last modified: 3 Jun 2014, 3:59:29 UTC

Have you ever thought that it's the females that are bringing along this adaption in the males while still allowing a few chirpers to be born so that they can mate with the silent 1's hanging around those chirpers?

No crickets don't think or decide which genes to give the offspring. The chirping males carry the chirping genes; and their number will decreases faster as there will be fewer for the flies to feed on. Females or non chirping males will have to evolve a new way to find each other. As of now they are surviving on a disappearing trait. This does show evolution can happen quickly but it may be a dead end.
ID: 1523939 · Report as offensive
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34744
Credit: 261,360,520
RAC: 489
Australia
Message 1523982 - Posted: 3 Jun 2014, 8:23:31 UTC

So I suppose that you reckon that bees and ants don't either?

Maybe you should just stay away from science subjects as it seems that you have a lot of trouble understanding them. ;-)

Cheers.
ID: 1523982 · Report as offensive
Batter Up
Avatar

Send message
Joined: 5 May 99
Posts: 1946
Credit: 24,860,347
RAC: 0
United States
Message 1524003 - Posted: 3 Jun 2014, 10:04:37 UTC - in response to Message 1523982.  

So I suppose that you reckon that bees and ants don't either?

Maybe you should just stay away from science subjects as it seems that you have a lot of trouble understanding them. ;-)

There is no "science" on this supposed forum. The scientist are too busy doing science to post.

There is a lack of understanding but it is not on my part ;-)
ID: 1524003 · Report as offensive
Sirius B Project Donor
Volunteer tester
Avatar

Send message
Joined: 26 Dec 00
Posts: 24875
Credit: 3,081,182
RAC: 7
Ireland
Message 1524006 - Posted: 3 Jun 2014, 10:11:08 UTC - in response to Message 1524003.  

There is no "science" on this supposed forum. The scientist are too busy doing science to post.

Well you can always depart for better shores...

Real Science discussions
ID: 1524006 · Report as offensive
W-K 666 Project Donor
Volunteer tester

Send message
Joined: 18 May 99
Posts: 19012
Credit: 40,757,560
RAC: 67
United Kingdom
Message 1524071 - Posted: 3 Jun 2014, 14:01:05 UTC - in response to Message 1524003.  

So I suppose that you reckon that bees and ants don't either?

Maybe you should just stay away from science subjects as it seems that you have a lot of trouble understanding them. ;-)

There is no "science" on this supposed forum. The scientist are too busy doing science to post.

There is a lack of understanding but it is not on my part ;-)

Of course the lack of understanding is on your part. Evolution never has said that all mutations are going to succeed. In fact it recognises that the chances of a mutation being successful is very small.
ID: 1524071 · Report as offensive
Profile Julie
Volunteer moderator
Volunteer tester
Avatar

Send message
Joined: 28 Oct 09
Posts: 34041
Credit: 18,883,157
RAC: 18
Belgium
Message 1524214 - Posted: 4 Jun 2014, 0:05:55 UTC - in response to Message 1523901.  

Have you ever thought that it's the females that are bringing along this adaption in the males while still allowing a few chirpers to be born so that they can mate with the silent 1's hanging around those chirpers?

Cheers.



Those are kinda harsh words Wiggo, cheers
rOZZ
Music
Pictures
ID: 1524214 · Report as offensive
Profile Wiggo
Avatar

Send message
Joined: 24 Jan 00
Posts: 34744
Credit: 261,360,520
RAC: 489
Australia
Message 1524228 - Posted: 4 Jun 2014, 0:32:42 UTC - in response to Message 1524214.  

Have you ever thought that it's the females that are bringing along this adaption in the males while still allowing a few chirpers to be born so that they can mate with the silent 1's hanging around those chirpers?

Cheers.



Those are kinda harsh words Wiggo, cheers

Sorry Julie, but it does seem to be what the those female crickets are doing to continue the species. ;-)

Cheers.
ID: 1524228 · Report as offensive
Batter Up
Avatar

Send message
Joined: 5 May 99
Posts: 1946
Credit: 24,860,347
RAC: 0
United States
Message 1524510 - Posted: 4 Jun 2014, 19:05:49 UTC - in response to Message 1524071.  

Of course the lack of understanding is on your part. Evolution never has said that all mutations are going to succeed. In fact it recognises that the chances of a mutation being successful is very small.

You agree with Batter Up yet he lacks understanding? Lets move along as there is a lack of understanding and nothing to see here.
ID: 1524510 · Report as offensive
Profile Julie
Volunteer moderator
Volunteer tester
Avatar

Send message
Joined: 28 Oct 09
Posts: 34041
Credit: 18,883,157
RAC: 18
Belgium
Message 1524513 - Posted: 4 Jun 2014, 19:11:09 UTC - in response to Message 1524228.  

Have you ever thought that it's the females that are bringing along this adaption in the males while still allowing a few chirpers to be born so that they can mate with the silent 1's hanging around those chirpers?

Cheers.



Those are kinda harsh words Wiggo, cheers

Sorry Julie, but it does seem to be what the those female crickets are doing to continue the species. ;-)

Cheers.



Ok Wiggo, think I might have misread them:) Cheers!
rOZZ
Music
Pictures
ID: 1524513 · Report as offensive
anniet
Volunteer tester
Avatar

Send message
Joined: 2 Feb 14
Posts: 7105
Credit: 1,577,368
RAC: 75
Zambia
Message 1547096 - Posted: 25 Jul 2014, 1:37:55 UTC

Sort of kind of think this might fit in here...?

Fluffy dinosaurs :)
ID: 1547096 · Report as offensive
Profile betreger Project Donor
Avatar

Send message
Joined: 29 Jun 99
Posts: 11358
Credit: 29,581,041
RAC: 66
United States
Message 1547106 - Posted: 25 Jul 2014, 2:24:15 UTC - in response to Message 1547096.  

Sort of kind of think this might fit in here...?

Fluffy dinosaurs :)

Nice link
ID: 1547106 · Report as offensive
Profile Julie
Volunteer moderator
Volunteer tester
Avatar

Send message
Joined: 28 Oct 09
Posts: 34041
Credit: 18,883,157
RAC: 18
Belgium
Message 1547288 - Posted: 25 Jul 2014, 8:00:20 UTC - in response to Message 1547106.  

Sort of kind of think this might fit in here...?

Fluffy dinosaurs :)

Nice link


+1:)
rOZZ
Music
Pictures
ID: 1547288 · Report as offensive
anniet
Volunteer tester
Avatar

Send message
Joined: 2 Feb 14
Posts: 7105
Credit: 1,577,368
RAC: 75
Zambia
Message 1548273 - Posted: 27 Jul 2014, 4:15:38 UTC
Last modified: 27 Jul 2014, 4:16:08 UTC

Okay - this is REALLY stretching this topic a bit :) - apologies everyone... ahem... how should I put this...?

Russia loses contact with satellite full of geckos

and how I reached that link... :)

Will an evolved race of super-geckos emerge from the solar system in future?
ID: 1548273 · Report as offensive
Profile betreger Project Donor
Avatar

Send message
Joined: 29 Jun 99
Posts: 11358
Credit: 29,581,041
RAC: 66
United States
Message 1548274 - Posted: 27 Jul 2014, 4:18:14 UTC - in response to Message 1548273.  

Will an evolved race of super-geckos emerge from the solar system in future?

Probaly not this time.
ID: 1548274 · Report as offensive
1 · 2 · Next

Message boards : Science (non-SETI) : Evolution - In Two Places


 
©2024 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.