Register | Sign In


Understanding through Discussion


EvC Forum active members: 65 (9162 total)
3 online now:
Newest Member: popoi
Post Volume: Total: 915,819 Year: 3,076/9,624 Month: 921/1,588 Week: 104/223 Day: 2/13 Hour: 1/0


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Peppered Moths and Natural Selection
PaulK
Member
Posts: 17822
Joined: 01-10-2003
Member Rating: 2.2


Message 123 of 350 (346940)
09-06-2006 9:15 AM
Reply to: Message 122 by Quetzal
09-06-2006 8:53 AM


Re: MartinV asserts fraud - but does he have integrity?
And to add to the difficulty:
Peppered moths are hard to find
For illustrative purposes it was desirable to find both morphs sitting next to each other on the same surface. In an accessible place. With good lighting.
Staging seems the only practical method of producing what was wanted.

This message is a reply to:
 Message 122 by Quetzal, posted 09-06-2006 8:53 AM Quetzal has replied

Replies to this message:
 Message 124 by Quetzal, posted 09-06-2006 11:11 AM PaulK has not replied
 Message 126 by MartinV, posted 09-07-2006 3:53 PM PaulK has replied

  
PaulK
Member
Posts: 17822
Joined: 01-10-2003
Member Rating: 2.2


Message 127 of 350 (347318)
09-07-2006 4:29 PM
Reply to: Message 126 by MartinV
09-07-2006 3:53 PM


Re: MartinV asserts fraud - but does he have integrity?
They usually rest high up in trees, where it is very hard to see them from the ground. So yes, where they rest is very accessible to birds but not to us. And, of course, the "wrong" colour moths for the area would usually be rare, so finding one of each kind side-by-side would be really difficult even now.

This message is a reply to:
 Message 126 by MartinV, posted 09-07-2006 3:53 PM MartinV has not replied

  
PaulK
Member
Posts: 17822
Joined: 01-10-2003
Member Rating: 2.2


Message 144 of 350 (347558)
09-08-2006 1:32 PM
Reply to: Message 142 by MartinV
09-08-2006 12:48 PM


Re: Another antidarwinistic hypothesis for industrial melanism
I beleive that Kettlewell's experiments established that birds will eat peppered moths given the opportunity. And wherever peppered moths prefer to rest during the day it is unlikely to be inaccessible to small birds.
Can you suggest how your explanation is supposed to actually work ? And how it explains the results of Kettlewell's experiments ?

This message is a reply to:
 Message 142 by MartinV, posted 09-08-2006 12:48 PM MartinV has replied

Replies to this message:
 Message 145 by MartinV, posted 09-08-2006 1:40 PM PaulK has replied

  
PaulK
Member
Posts: 17822
Joined: 01-10-2003
Member Rating: 2.2


Message 149 of 350 (347579)
09-08-2006 2:52 PM
Reply to: Message 145 by MartinV
09-08-2006 1:40 PM


Re: Another antidarwinistic hypothesis for industrial melanism
I'm sure that everyone can observe that birds can get into many places that would not be easily accessible to humans

This message is a reply to:
 Message 145 by MartinV, posted 09-08-2006 1:40 PM MartinV has not replied

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024