Navigation Links
New research constructs ant family tree
Date:4/21/2013

Anyone who has spent time in the tropics knows that the diversity of species found there is astounding and the abundance and diversity of ants, in particular, is unparalleled. Scientists have grappled for centuries to understand why the tropics are home to more species of all kinds than the cooler temperate latitudes on both sides of the equator. Several hypotheses have been proposed to explain the higher species numbers in the tropics, but these hypotheses have never been tested for the ants, which are one of the most ecologically and numerically dominant groups of animals on the planet.

New research by evolutionary biologists Dr. Corrie Moreau of Chicago's Field Museum and Dr. Charles Bell of the University of New Orleans is helping answer these questions. Their findings are presented this week in the journal Evolution.

The scientists used DNA sequence data to build the largest ant tree-of-life to date. This tree-of-life, or family tree of ants, not only allowed them to better understand which ant species are related, but also made it possible to infer the age for modern ants because information from the fossil record in the form of geologic time was included in the research.

This ant tree-of-life confirmed an earlier surprising finding that two groups of pale, eyeless, subterranean ants, which are unlike most typical ants, are the earliest living ancestors of the modern ants. The time calibrated ant tree-of-life showed that the ants found on the planet today can trace their evolutionary origins back to between 139 and158 million years ago during the time the dinosaurs walked the Earth (a finding in line with previous studies).

But why are there more species of ants in the tropics? To explain this pattern of higher species diversity for many tropical organisms, biologists have used the analogies of the tropics acting as a "museum" or "cradle" for speciation. In the case of the museum analogy, the tropical clim
'/>"/>

Contact: Nancy O'Shea
media@fieldmuseum.org
312-665-7100
Field Museum
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. Research reveals first evidence of hunting by prehistoric Ohioans
3. Diabetes Research Institute develops oxygen-generating biomaterial
4. APS issues new policy requiring identification of sex or gender in reporting scientific research
5. UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
6. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
7. U of Alberta researcher steps closer to understand autoimmune diseases
8. Research on flavanols and procyanidins provides new insights into how these phytonutrients may positively impact human health
9. A project to research biological and chemical aspects of microalgae to fuel approach
10. Scripps Research discoveries lead to newly approved drug for infant respiratory distress syndrome
11. Researchers attempt to solve problems of antibiotic resistance and bee deaths in one
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/1/2014)... 1, 2014, 10:20 AM EDT) It may be ... foods over unhealthy higher-calorie foods, according to new research ... Research Center on Aging (USDA HNRCA) at Tufts University ... the journal Nutrition & Diabetes , a brain ... it is possible to reverse the addictive power of ...
(Date:9/1/2014)... WASHINGTON About 50 years ago, electron microscopy revealed ... cells, move around and disappear. But scientists still don,t ... cloud-like collections of proteins are believed to be crucial ... offer a new approach to disease treatment., In the ... issuing a call to investigators from various backgrounds, from ...
(Date:9/1/2014)... week-long discussions and decisions of the Nomenclature Section of ... Australia in July 2011. This meeting is held every ... experts on the rules for naming algae, fungi and ... book for naming the organisms they study. This is ... of Nomenclature for algae, fungi, and plants, which was ...
Breaking Biology News(10 mins):Training your brain to prefer healthy foods 2Scientists call for investigation of mysterious cloud-like collections in cells 2Week-long meeting on naming algae, fungi, and plants recorded for posterity 2
... the Johns Hopkins School of Medicine and their colleagues have ... addition to their own can acquire new color vision, a ... new sensory information than anticipated. , This work, appearing ... ancestral primate inherited a new type of photoreceptor more than ...
... aren't as busy as, well, a bee. It all ... that a key to the insects' success in adapting to ... temperatures when flying to flowers. Whether and how they ... from the University of Washington and the University of Puget ...
... Schulich School of Medicine & Dentistry at The University ... Edinburgh, have discovered a way to kill the cystic ... of Dr. Miguel Valvano, Department of Microbiology and Immunology, ... of the Journal of Bacteriology, and highlighted in Nature ...
Cached Biology News:Making mice with enhanced color vision 2Making mice with enhanced color vision 3Bumblebee house warming -- it takes a village 2Bumblebee house warming -- it takes a village 3Key found to kill cystic fibrosis superbug 2
(Date:8/29/2014)... Pittcon is pleased to announce that ... Matsuda, Horiba Scientific, have organized a session on nanotechnology ... JASIS , Asia’s largest analytical and scientific instruments show, ... Japan. , The four speakers in this U.S. ... Molecules to Single Cells” will present their use of ...
(Date:8/29/2014)... Livermore, California (PRWEB) August 29, 2014 ... Department of Energy's 2014 Hydrogen Production R&D ... photoelectrochemically -- by splitting water using sunlight. , ... Laboratory (NREL) and the University of Nevada, Las ... its work developing models of photoelectrochemical solar-hydrogen production ...
(Date:8/29/2014)... MA, San Antonio, TX (PRWEB) August 29, 2014 ... ISO 9001:2008 and ISO 13485:2003 certified, GAMP® 5 ... has been awarded an international Phase II clinical ... with non-Hodgkin’s lymphoma. , Throughout this trial, Intrinsic ... including, but not limited to, protocol and charter ...
(Date:8/28/2014)... Best Sanitizers, Inc., the first company to ... asks food processors and food handling professionals to prepare ... currently using to Best Sanitizers’ Alpet® E3 Plus ... fighting cross-contamination and the spread of pathogens in the ... key criteria that make a hand sanitizer most effective, ...
Breaking Biology Technology:Fifth Annual U.S. Symposium at JASIS Organized by Pittcon’s Program Chairman Hub MacDonald 2Livermore Team Awarded for Hydrogen Production Research 2Intrinsic Imaging Awarded Phase II Clinical Trial to Assess New Treatment for Non-Hodgkin’s Lymphoma 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 3
... Databases ... Receptors and Proteases, PARIS, August 18 Aureus ... life sciences discovery,announced today the release of three new ... for the important,drug targets Nuclear Receptor and Protease, as ...
... Aug. 18 LifeVantage Corporation,(OTC Bulletin Board: LFVN), the ... the progressive rate of aging, today announced,that the company,s ... interview on WallSt.net,s 3-Minute Press Show., The interview ... of the company,s latest press release., ...
... Inc. (OTC Bulletin Board: YGYB) ("Yongye" or the "Company"),a ... and,animals in the People,s Republic of China, today announced ... Second Quarter 2008 Highlights -- Revenue ... second quarter of 2007, and ...
Cached Biology Technology:Aureus Pharma Releases New Unified Knowledge Database 2[video] David Brown, President and CEO of LifeVantage Corporation, Discusses Record Page Views on WallSt.net's 3-Minute Press Show 2Yongye Biotechnology International Announces Second Quarter Results 2Yongye Biotechnology International Announces Second Quarter Results 3Yongye Biotechnology International Announces Second Quarter Results 4Yongye Biotechnology International Announces Second Quarter Results 5Yongye Biotechnology International Announces Second Quarter Results 6Yongye Biotechnology International Announces Second Quarter Results 7Yongye Biotechnology International Announces Second Quarter Results 8Yongye Biotechnology International Announces Second Quarter Results 9Yongye Biotechnology International Announces Second Quarter Results 10Yongye Biotechnology International Announces Second Quarter Results 11
Form: Ready to use Applications: ELISA...
EnzChek Ultra Xylanase Assay Kit *500 assays*...
Goat polyclonal to p27 KIP 1 ( Abpromise for all tested applications). Antigen: Synthetic peptide: C-KRPATDDS STQNK, corresponding to Internal sequence amino acids 153-165 of Human p27 KIP 1 ...
Defender against cell death 1...
Biology Products: