Monday, October 04, 2010

Species Diversity and Distribution Patterns of the Ants of Amazonian Ecuador

So, if you've ever wondered what it is I have been doing for the past 10 years, a big chunk of it was just published in PLoS ONE.  You can read the whole article here.

Species Diversity and Distribution Patterns of the Ants of Amazonian Ecuador
Kari T. Ryder Wilkie, Amy L. Mertl, James F. A. Traniello
Department of Biology, Boston University, Boston, Massachusetts, United States of America


Abstract
Ants are among the most diverse, abundant and ecologically significant organisms on earth. Although their species richness appears to be greatest in the New World tropics, global patterns of ant diversity and distribution are not well understood. We comprehensively surveyed ant diversity in a lowland primary rainforest in Western Amazonia, Ecuador using canopy fogging, pitfall traps, baits, hand collecting, mini-Winkler devices and subterranean probes to sample ants. A total of 489 ant species comprising 64 genera in nine subfamilies were identified from samples collected in only 0.16 square kilometers. The most species-rich genera were Camponotus,Pheidole, Pseudomyrmex, Pachycondyla, Brachymyrmex, and Crematogaster. Camponotus andPseudomyrmex were most diverse in the canopy, while Pheidole was most diverse on the ground. The three most abundant ground-dwelling ant genera were Pheidole, Solenopsis and Pyramica.Crematogaster carinata was the most abundant ant species in the canopy; Wasmannia auropunctata was most abundant on the ground, and the army ant Labidus coecus was the most abundant subterranean species. Ant species composition among strata was significantly different: 80% of species were found in only one stratum, 17% in two strata, and 3% in all three strata. Elevation and the number of logs and twigs available as nest sites were significant predictors of ground-dwelling ant species richness. Canopy species richness was not correlated with any ecological variable measured. Subterranean species richness was negatively correlated with depth in the soil. When ant species were categorized using a functional group matrix based on diet, nest-site preference and foraging ecology, the greatest diversity was found in Omnivorous Canopy Nesters. Our study indicates ant species richness is exceptionally high at Tiputini. We project 647–736 ant species in this global hotspot of biodiversity. Considering the relatively small area surveyed, this region of western Amazonia appears to support the most diverse ant fauna yet recorded.

Citation: Ryder Wilkie KT, Mertl AL, Traniello JFA (2010) Species Diversity and Distribution Patterns of the Ants of Amazonian Ecuador. PLoS ONE 5(10): e13146. doi:10.1371/journal.pone.0013146

8 comments:

  1. Im investigating how such a change is made in their lives of insects as a result of global warming.

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  2. Biodiversity is the cornerstone of the balance of life. Respect for life in general is on the decline and appreciation for life, in its many forms, is a worthwhile lesson to teach. Thanks for your post.

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  3. Congratulations on your publication in PLoS ONE. A decade of research - extensive and highly informative.

    The world of ants and how they can teach us things, what we can learn from them, and more, is fascinating. Thank you for your studies, as we all will greatly benefit from it.

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  4. Great work thanx for information admin.

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  5. Congrats! It looks like you've moved on to new and bigger things, but just in case, Wanted to invite you to participate in the bug blogger census!

    http://membracid.wordpress.com/bug-blogger-survey/

    ReplyDelete
  6. Hi Kari,
    I'm eradicating Wasmannia in Australia and have sent an email to the two addresses shown in the contacts . Is this the best way to speak to you? I'm looking at your underrground probe.

    ReplyDelete