• Home
  • About Alex Wild
  • Articles
  • Galleries
  • Myrmecology News

Myrmecos Blog

the little things matter

Feeds:
Posts
Comments
« Friday Beetle Blogging: Pill Beetle
Army Ants of the North »

How ants acheive “balance”?

December 13, 2008 by myrmecos

From an interview with E. O. Wilson:

[Q:]Are ants better at anything than humans?

[Wilson:] Human beings have not yet made an accommodation with the rest of life—whereas ants, whose history dates back more than 100 million years, have achieved that balance, mostly by specializing among the 14,000 known species in terms of where they live, what they eat, and how they relate to other species. Each, for the most part, has acquired a balance with prey, food, and space, halting population growth before it crashes. Ants have reached some degree of sustainability, while humans have not. We’re not going to last 100 years if we don’t start settling down.

Really?

I think the available evidence suggests the opposite.  Ants achieved their current dominance not through finding some magical ecological balance but by driving their competition to extinction.

Consider the ground beetles.  They are an older group of insects, occupying a similar soil/ground predatory role to many ant species.  But this ancient group of beetles is globally most abundant now only around the periphery of the ants, filling in the cracks that are too cold, too dark, too extreme for the Formicidae.  Ground beetles abound in boreal forests, along ice fields, in alpine meadows above the tree line.  What’s more, those that persist in the ant-rich tropics have a more potent defensive chemistry, as if those species that didn’t retreat in the face of the ant radiation stocked up on guns and ammunition.   We don’t know for certain, but the bits of evidence taken together it’s likely that the rise of the ants had a pretty significant effect on the ground beetles.  This nature is more Red in Tooth and Claw than singing Kumbaya in global harmony.

I understand Wilson’s angle-  that humans are destroying the ecological systems that sustain us- but surely that same point can be made without resting it on feel-good pablum without any empirical grounding.

Share this:

  • Twitter
  • Facebook

Like this:

Like Loading...

Related

Posted in Ants, beetles, Science | Tagged E. O. Wilson, ecology, Evolution | 9 Comments

9 Responses

  1. on December 13, 2008 at 11:47 am EDenemark

    Cool post, nice to see people not taking the words of famous scientists as ‘law’.

    I think your treatment of the Carabidae is a bit unfair though. The TOL page you linked us to claims 30,000 species with a fair diversity of lifestyles (some of which destroy entire ant colonies). Many more are probably waiting to be described.

    While I agree that ants aren’t the angels of conservation Wilson describes them as, and I’m sure they have taken their evolutionary toll on competitors, I really don’t think Carabidae have been shunned to areas where Formicidae simply can’t survive. These two families are almost always found in the same habitats. Cicindela larvae overlap with ants on a daily basis. I just can’t think of majority of habitats that are too extreme for ants…but not for Carabids.


  2. on December 13, 2008 at 3:51 pm jochenB

    Ground beetles have definitely lost the “battle” in tropical forest: Few species in very low numbers. But try to find a square meter of tropical forest without ants.


  3. on December 13, 2008 at 6:33 pm EDenemark

    Definitely a different story in African Savanna though, where many species of Carabidae overlap in habitat with an equal diversity of ants. Can we safely conclude the ants are the cause of Carabid absence in the tropical forest in light of their coexistence elsewhere?


  4. on December 14, 2008 at 1:56 pm Aydin

    I think Wilson’s point is that unlike humans ants are not driving their prey or competitors into extinction. They may have pushed the ground beetles away, but there is still a balance between them & the beetles.


  5. on December 15, 2008 at 9:39 am Emily

    I think what’s more is that, while comforting, those feel-good conceptualizations of nature as a nurturing entity can actually be detrimental. When the objective of a conservation (or what have you) group is to change governmental policies or convince decision-makers to act based on facts, it can be harder to make truthful arguments if the minds in front of you have been prepared to receive what you’re saying via emotional sugar-coating. In worst-case scenarios, people may mistrust what conservationists say because it isn’t aligned with long-held beliefs. Real environmental stewardship is tricky, not least because the pressure to make concessions to human needs/wants means you gots to prioritize. Which means choosing which battles to sacrifice.

    Especially in urban settings, I think the tendency toward (young, well-intentioned) people is to fall into the trap of buying the Nature-as-nurturer world views. They seem to focus their resources on the minimally useful things they can do to help, instead of looking for the bigger picture.

    It’s a valid point that some high-visibility nature advocates promulgate ideas that are difficult to overcome, should they get in the way of making good stuff happen. Though I do get where Wilson is coming from.


  6. on December 18, 2008 at 1:22 pm James C. Trager

    Down with pablum! But, I have to deal regularly in my “day job” with how to get the public, even those genuinely interested in them, to grasp the size and complexity of these issues.

    Regarding the ants & ground beetles question, it seems to me the two groups came early to exploit rather different parts of the prey base and have not been much in competition. The question might be whether their different ecological-evolutionary courses ultimately result from some sort of competition along the way or simply from distinct and stochastically not-very-interacting histories?

    The two groups do prey on one another, but, in the big picture hardly seem to be significant selective forces on each other. Are the mostly non-overlapping size ranges of carabid and ant predators in the Holarctic the result of competition over the course of evolution of the two groups, or are they the result of something else? Are relatively large-bodied predator ants abundant in the Neotropics because carabids are uncommon, or the other way around, or neither? Etc…..


  7. on December 19, 2008 at 10:41 pm barry goldman

    what does the amber record suggest? does it go back to when carabids where abundant and ants not yet on the scene?


  8. on December 22, 2008 at 10:05 am Eric R. Eaton

    I’m left wondering (just a little) why Alex has such a beef with Dr. Wilson. This is not the first post taking a jab at Wilson, so while Alex makes an excellent point, I’m also sensing some underlying issues here….One thing no one is pointing out is that we humans are also animals, just like ants, and we behave in the same way as any other animal: we seek to eliminate mortality factors and competition, and increase our own population. The problem is, we can actually do it to a degree that ultimately backfires by undercutting the support structures of natural ecosystems. We need to acknowledge our “animalness” if we are to confront environmental issues. Aside, I also find it interesting that in urban society, largely a vacuum of nature, while we don’t have other species acting as our predators, parasites, and competition, we have murderers, con artists, and lots of competition….from our own species. I don’t think this is a coincidence.


  9. on January 3, 2009 at 12:20 pm Why does Myrmecos Blog have it out for E. O. Wilson? « Myrmecos Blog

    […] 3, 2009 by myrmecos In the comments, Eric Eaton makes an observation: I’m left wondering (just a little) why Alex has such a beef with Dr. Wilson. This is not the […]



Comments are closed.


  • This blog is an archive; the Myrmecos blog has moved.

    Please update your bookmarks!
  • Alex’s Galleries

    alexanderwild.com

  • Recent Photos

    DarkQue bonito trabajo el de la Luna...iluminar vidas cuando andan a oscuras.Elephant HeadEastern Coyote, Southern OntarioWindowsジュエリーアイス
    More Photos
  • Biology Links

    • Tree of Life
    • Understanding Evolution
  • Blogroll

    • Ainsley Vs Livejournal
    • Ammonite
    • Anna’s Bee World
    • Archetype
    • Arthropoda blog
    • Backyard Arthropod Project
    • Beetles in the Bush
    • biodiversity in focus
    • Bug Dreams
    • Bug Eric
    • Bug Girl’s Blog
    • Burrard-Lucas Photoblog
    • Catalogue of Organisms
    • Creature Cast
    • Dan Heller
    • Debbie's Insect Blog
    • Dechronization
    • Drawing the MotMot
    • Entomoblog
    • Evolving Thoughts
    • Fall to Climb
    • Generant
    • Historias de Hormigas
    • Life on Six Legs
    • Macromite
    • microecos
    • mirmekolozi
    • myrmecoid
    • Myrmician
    • Natural Imagery
    • Nature in the Ozarks
    • NCSU Insect Blog
    • No Cropping Zone
    • omit needless words
    • Photo Synthesis
    • Princess Peppercloud
    • Science Blogs
    • Snail’s Tales
    • Stu Jenks
    • The Ant Hunter
    • The Ant Room
    • The Bug Whisperer
    • The Loom
    • This Week in Evolution
    • What's Bugging You?
    • Wild about Ants
    • Xenogere
  • Insect Links

    • Ant Farm Forum
    • Ant Insights
    • Antweb
    • Bug Squad
    • bugguide.net
    • Xerces Society
  • Photography Links

    • Canon Photography Forums
    • Digital Photography Review
    • DIY Photography
    • Igor Siwanowicz
    • Mark Plonsky
    • photo.net
    • Piotr Naskrecki
    • The Strobist
  • Popular Posts

    • How to Identify Queen Ants
    • Must we call them meat ants?
    • What does it mean to be an eyeless ant?
    • Ant Metamorphosis
    • Ants as seed dispersers - part 2
    • Mystery Myrmecophile
    • The Odorous House Ant, Tapinoma sessile
    • Specimen Request: Army/leafcutter/bullet ant queens for morphometrics
    • Friday Beetle Blogging: Dendroides Larva
    • How to Identify the Argentine Ant, Linepithema humile
  • Recent Posts

    • This blog has moved.
    • Friday Beetle Blogging: The Hollyhock Weevil
    • The Friday Beetle will be late…
    • Bed bugs reach an all-time high
    • Answer to the Monday Night Mystery
  • Recent Comments

    • Donald Byron Johnson on Reader question: who discovered the sex of ant workers?
    • Anonymous on Update on the Rogue Taxonomist
    • Ant on Arizona Daily Star covers “Planet of the Ants”
    • Ga. Girl on Beware the Cow-Killer
    • Anonymous on Beware the Cow-Killer
  • Categories

  • Archives

  • animation Ants aphids arachnids Argentina arizona army ants art Bees beetles behavior biodiversity biology Biology Links bugs Canon carabidae coleoptera copyright Darwin desert diptera E. O. Wilson ecology entomology Evolution fail fire ants Flies formicidae genetics google haiku Harpegnathos imaging Insect Links Insects invasive species lighting Linepithema macro macrophotography macro photography Martialis media miniscule muppets music myrmecology mystery natural history Nature new species odontomachus Parasites Paratrechina pests pheidole Photography Photography business photoshop phylogenetics phylogeny Pogonomyrmex politics predation Scarabaeidae Science SEM social insects spiders Taxonomy termites travel wasps
  • Nature Blog Network
    Add to Technorati Favorites

    Follow this blog

Blog at WordPress.com.

WPThemes.


  • Follow Following
    • Myrmecos Blog
    • Join 91 other followers
    • Already have a WordPress.com account? Log in now.
    • Myrmecos Blog
    • Customize
    • Follow Following
    • Sign up
    • Log in
    • Copy shortlink
    • Report this content
    • View post in Reader
    • Manage subscriptions
    • Collapse this bar
%d bloggers like this: