Talk:Evolutionary pressure

Wiki Education Foundation-supported course assignment

edit

  This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Student editor(s): Jtmitchell2. Peer reviewers: Relavoie.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 21:00, 16 January 2022 (UTC)Reply

References and size

edit

Why is this vital article unsourced? JFW | T@lk 16:13, 25 August 2006 (UTC)Reply

Why is this vital article so small? -- Tuvok^Talk|Desk|Contribs  17:20, 9 December 2006 (UTC)Reply

Why does this vital article have no stub sign?

Why, then, doesn't someone do something about this vital article?

Original research?

edit

"Evolutionary pressure" makes it sound like evolutionary change results from other than random, blind processes. It implies there is a directing force, which is contrary to the theory of evolution. See Introduction to evolution and History of evolution. Regards, —mattisse (Talk) 20:07, 19 September 2009 (UTC)Reply

Evolutionary pressure relates to why a species evolves, usually on a small scale. Random changes may happen in a population, but unless it has and advantage of some sort it will just be a random change that has no impact on the overall population. For example, if Roundup is not sprayed on plants in large amounts, the population does not evolve to become resistant to it. This article describes why the overall population evolves when faced by new obstacles.Lifelonglego (talk) 16:18, 31 October 2009 (UTC)Reply

Evolutionary is not an actual force, but a concept describing the process by which an organism evolves.Lifelonglego (talk) 16:20, 31 October 2009 (UTC)Reply

Antibiotic Resistance Section Improvements

edit

1. This section provides a very generalized overview of how natural selection has led to bacteria that are antibiotic resistant. A more detailed explanation of how the bacteria become resistant over multiple generations would add a greater understanding to the evolutionary process and why this pressure exists.

2. There are not any specific examples of antibiotic resistant bacteria or names of antibiotics that are commonly used to treat illnesses. The addition of specific examples, such as the bacteria C. difficle would enhance the content of the section.

3. In order to demonstrate why evolutionary pressures for antibiotic resistance are significant, it would be beneficial to add more information about the consequences of antibiotic resistance. A suggested area of interest could be how nosocomial infections have developed as a result of antibiotic resistance.

Psellas.1 (talk) 03:46, 2 October 2014 (UTC)Reply

Selection pressure for beneficial traits

edit

This article seems to imply that selection pressure is a negative phenomenon—sickle cell in exchange for limited malaria resistence. But selection pressure conserved lactase persistence because it improved maternal health and reproductive success, while providing benefits to the society at large. There's no negative in this process. Please clarify the definition and provide appropriate examples.

In fact, the article would benefit from a wider range of examples throughout. I am not qualified to provide them or to expand on the general definition, so I would ask the author and/or other science experts to do so.

Also, the argument here would be clearer if the author was more careful about the use of "it." In a few cases, I found it difficult to discern what "it" refered to, even with multiple rereadings. KC 05:00, 9 October 2015 (UTC) — Preceding unsigned comment added by Boydstra (talkcontribs)

Propose article deletion/redirect/disambiguation page

edit

I don't see the value in this article. In quantitative terms, we have the article selection coefficient. It would be good have a quantitative article on selection intensity too: right now the material can be found at Heritability#Response_to_selection as the "Selection Differential". In qualitative terms, we have natural selection. I do not see what niche this article fills, and right now it is not of high quality. Perhaps the best thing to do is to replace it by a redirect to the three options above.

It would be useful to have an article on selective constraint, eg the natural selection page talks about sequences being "conserved over time due to selective pressure against deleterious variants" but this article does not go in that direction, and a wikilink from selection pressure in that usage to here would be inappropriate. Perhaps the Ka/Ks ratio page would be a good place to start on building material on selective constraint. In any case, this is an example of how the redirect from selection pressure to here is problematic.Joannamasel (talk) 19:24, 2 October 2016 (UTC)Reply

There is also Natural Selection#Directionality of selection, Disruptive Selection, Stabilizing Selection and Directional Selection, which deal with the type of concepts I would have expected to find on this page. Ethan Bass (talk) 20:21, 20 October 2020 (UTC)Reply

edit

Hello fellow Wikipedians,

I have just modified 2 external links on Evolutionary pressure. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 00:17, 26 September 2017 (UTC)Reply

Added section

edit

Added a section on humans exerting evolutionary pressure, along with three sub categories about specific instances of this. Jtmitchell2 (talk) 02:49, 1 December 2017 (UTC)Reply

Selection is not a "force" but rather a "process"

edit

In his book Natural selection in the wild, Endler exposes explicitly the fact that selection is not a force and that there is no such thing as "pressure" exerted on a trait. See his second chapter titled "Philosophical Comments" on page 27 to read the argument.

"Endler, J. A. 1986. Natural selection in the wild. Princeton University Press, Princeton, New Jersey." — Preceding unsigned comment added by Beausoleilmo (talkcontribs) 00:10, 30 October 2019 (UTC)Reply