Behavior OnLine Forums  
The gathering place for Mental Health and
Applied Behavior Science Professionals.
 
Become a charter member of Behavior OnLine.

Go Back   Behavior OnLine Forums > >

Notices

Reply
 
Thread Tools Display Modes
  #1  
Old May 12th, 2008, 10:26 AM
James Brody James Brody is offline
Forum Leader
 
Join Date: Jun 2004
Location: Philadelphia area
Posts: 1,143
Arrow Burgess Shale/Emergent Nets

The emergent networks folks can sit in a dry lab with cold coffee and hot computers. The synchrony found in that GxE product tells us about organizations in cells, crickets, neurons, cardiac pacemakers, and power grids. It also tells us that what we see today in our simulations and in our neighbors also existed in the communities of 500 million years ago, found by Wolcott in the Burgess Shale.

The effect is like traveling 100 light years and being met by your twin!

JimB

Ancient Ecosystems Organized Much Like Our Own

ScienceDaily (May 1, 2008) — Similarities between half-billion-year-old and recent food webs point to deep principles underpinning the structure of ecological relationships, as shown by researchers from the Santa Fe Institute, Microsoft Research Cambridge and elsewhere. Analyses of Chengjiang and Burgess Shale food-web data suggest that most, but not all, aspects of the trophic structure of modern ecosystems were in place over a half-billion years ago. It was an Anomalocaris-eat-trilobite world, filled with species like nothing on today's Earth. But the ecology of Cambrian communities was remarkably modern, say researchers behind the first study to reconstruct detailed food webs for ancient ecosystems. Their paper suggests that networks of feeding relationships among marine species that lived hundreds of millions of years ago are remarkably similar to those of today."

Journal reference: Dunne JA, Williams RJ, Martinez ND, Wood RA, Erwin DH (2008) Compilation and network analyses of Cambrian food webs. PLoS Biol 6(4): e102. doi:10.1371/journal.pbio.0060102

More at: http://www.sciencedaily.com/releases...0428200309.htm


References

Barabási, A-L (2002) Linked: The New Science of Networks. NY: Perseus.
Barabási, A-L (2005) Taming complexity. Nature Physics. 1: 68-70.
Brody J (2008) Rebellion: Physics to Personal Will. Lincoln, NE: iUniverse. http://www.rebellionphysicstopersonalwill.blogspot.com/
Gould, S. (1989) Wonderful Life: The Burgess Shale and the Nature of History. NY: Norton.
Strogatz, S. (2003) Sync: The Emerging Science of Spontaneous Order. NY: Hyperion.
Reply With Quote
  #2  
Old May 19th, 2008, 02:24 PM
TomJrzk TomJrzk is offline
Member
 
Join Date: Aug 2004
Location: Dallas
Posts: 257
Default Re: Burgess Shale/Emergent Nets

Quote:
Originally Posted by James Brody
The emergent networks folks can sit in a dry lab with cold coffee and hot computers. The synchrony found in that GxE product tells us about organizations in cells, crickets, neurons, cardiac pacemakers, and power grids. It also tells us that what we see today in our simulations and in our neighbors also existed in the communities of 500 million years ago, found by Wolcott in the Burgess Shale.

The effect is like traveling 100 light years and being met by your twin!

JimB

Ancient Ecosystems Organized Much Like Our Own

ScienceDaily (May 1, 2008) — Similarities between half-billion-year-old and recent food webs point to deep principles underpinning the structure of ecological relationships, as shown by researchers from the Santa Fe Institute, Microsoft Research Cambridge and elsewhere. Analyses of Chengjiang and Burgess Shale food-web data suggest that most, but not all, aspects of the trophic structure of modern ecosystems were in place over a half-billion years ago. It was an Anomalocaris-eat-trilobite world, filled with species like nothing on today's Earth. But the ecology of Cambrian communities was remarkably modern, say researchers behind the first study to reconstruct detailed food webs for ancient ecosystems. Their paper suggests that networks of feeding relationships among marine species that lived hundreds of millions of years ago are remarkably similar to those of today."

Journal reference: Dunne JA, Williams RJ, Martinez ND, Wood RA, Erwin DH (2008) Compilation and network analyses of Cambrian food webs. PLoS Biol 6(4): e102. doi:10.1371/journal.pbio.0060102

More at: http://www.sciencedaily.com/releases...0428200309.htm


References

Barabási, A-L (2002) Linked: The New Science of Networks. NY: Perseus.
Barabási, A-L (2005) Taming complexity. Nature Physics. 1: 68-70.
Brody J (2008) Rebellion: Physics to Personal Will. Lincoln, NE: iUniverse. http://www.rebellionphysicstopersonalwill.blogspot.com/
Gould, S. (1989) Wonderful Life: The Burgess Shale and the Nature of History. NY: Norton.
Strogatz, S. (2003) Sync: The Emerging Science of Spontaneous Order. NY: Hyperion.
Of course, any 'species-that-lives-long-enough-to-leave-identifiable-fossils' will almost certainly have to be a part of a food chain. Any time a species greatly outcompetes its environment, it reproduces until it overwhelms its food supply. Us included?

We may never find the fossil blip some species probably produced just before they went extinct.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:59 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 1995-2023 Liviant Internet LLC. All rights reserved.