Navigation Links
Inconspicuous leaf beetles reveal environment's role in formation of new species
Date:10/30/2009

Unnoticed by the nearby residents of St. Johnsbury, Vermont, tiny leaf beetles that flit among the maple and willow trees in the area have just provided some of the clearest evidence yet that environmental factors play a major role in the formation of new species.

At Vanderbilt University, graduate student Scott Egan and his adviser Daniel Funk, associate professor of biological sciences, obtained this new evidence from an experimental study published online this week in the early edition of the Proceedings of the National Academy of Sciences.

Funk has investigated this odd group of leaf beetles (which resemble unappetizing caterpillar pellets) for 15 years. In recent years he and Egan have used Vermont populations that associate with red maples and Bebbs willows to investigate how divergent ecological habits promote speciation. Their past observations have suggested that such "maple leaf beetles" and "willow leaf beetles" may be in the process of dividing into two new species: Each prefers to feed and lay eggs on their own "host plant," where they grow and survive best. Although there is some intermixing, the beetles show a decided preference for mates from the same host. While maple and willow beetles are visually indistinguishable, the current degree of their divergence is highlighted by the willow beetles' willingness to starve to death rather than feed on the maple leaves readily consumed by their maple beetle cousins.

This research has established these inconspicuous beetles as an important example of how ecological factors contribute to evolutionary divergence and the origin of Earth's millions of species. "Without this process, life would not have the incredible number and variety of species that we take for granted," says Funk.

Although such ideas were raised just after Darwin wrote his famous book, On the Origin of Species, most 20th century research focused on the role of genetic factors and geog
'/>"/>

Contact: David F. Salisbury
david.salisbury@vanderbilt.edu
615-343-6803
Vanderbilt University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Sex is thirst-quenching for female beetles
2. Armed beetles find a mate, whatever their size
3. Entomologists play matchmakers for cerambycid beetles
4. Novel fungus helps beetles to digest hard wood
5. Beetles get by with a little help from their friends
6. Controlling cucumber beetles organically
7. Childhood obesity indicates greater risk of school absenteeism, Penn study reveals
8. Study begins to reveal clues to the cause and progression of sepsis
9. Comet probes reveal evidence of origin of life, scientists claim
10. Structure of 450 million year old protein reveals evolutions steps
11. UF scientists reveal how dietary restriction cleans cells
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Inconspicuous leaf beetles reveal environment's role in formation of new species
(Date:3/31/2015)... , March 31, 2015   Guidepoint , a ... of the Post-Surgical Pain Management TRACKER, part of the ... usage trends in the medical device and therapeutics markets. ... data including treatment volumes, market share, and adoption rates ... associated with joint surgery. The Post-Surgical Pain ...
(Date:3/24/2015)... March 24, 2015   NexID Biometrics LLC, ... security-authentication needs, today announced the beginning of shipments of ... The company, based in Potsdam, ... three-day Connect:ID Expo, which began here today at the ... version 2.0 of its SDK boosts the accuracy rate ...
(Date:3/23/2015)... Mar. 23, 2015 NXT-ID, Inc. (NASDAQ: NXTD ) ... the growing mobile commerce market, announces its biometric payment technology, ... on CNBC television starting March 30 th . ... in New York markets. ... are excited about our new ad campaign following the recent ...
Breaking Biology News(10 mins):Guidepoint Launches Post-Surgical Pain Management TRACKER 2Guidepoint Launches Post-Surgical Pain Management TRACKER 3NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 2NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 2NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 3
... is enabling researchers to study the effectiveness of drugs ... the University of Leeds,s Faculty of Biological Sciences will ... mutation linked to schizophrenia and autism and seeing how ... fully understand how the drugs used to treat schizophrenia ...
... Toxin Does Not Affect MRSA-Induced Pneumonia ... the Center for Molecular and Translational Human Infectious Diseases ... Texas has demonstrated that the cytotoxin Paton-Valentine leukocidin (PVL) ... pneumonia. Their report can be found ...
... WASHINGTON The Proceedings of the National Academy of ... papers to receive the 2009 Cozzarelli Prize, an award ... the National Academy of Sciences. Papers selected for the ... published by PNAS in 2009 and represent the ...
Cached Biology News:Research builds on genetic link to autism and schizophrenia 2Tips from the American Journal of Pathology 2Tips from the American Journal of Pathology 3Tips from the American Journal of Pathology 4Tips from the American Journal of Pathology 5PNAS announces six 2009 Cozzarelli Prize recipients 2
(Date:3/30/2015)... NC (PRWEB) March 30, 2015 ... are pleased to announce the formation of VaxCorps, ... research centers specializing in the conduct of vaccine ... VaxCorps clinical sites have successfully conducted over ... experience in seasonal and pandemic influenza as well ...
(Date:3/30/2015)... US-Australian drug discovery company, Novogen Ltd, (ASX:NRT; NASDAQ: ... University, on March 27 released pre-clinical data on experimental ... oral presentation by Professor Gil Mor MD ... Annual Scientific Meeting of the Society of Reproductive ... In both in vitro and in animal ...
(Date:3/30/2015)... BELLINGHAM, Washington, USA (PRWEB) March 29, 2015 ... Europe and the United States and plenary talks by ... for SPIE Optics + Optoelectronics next month ... 700 technical presentations in 17 conferences alongside a two-day ... optics and photonics , the event will run 13-16 ...
(Date:3/29/2015)... 29, 2015  Caris Life Sciences® today announced ... Molecular Intelligence®, the company,s panomic, comprehensive tumor profiling ... several rare and difficult to treat gynecological cancers ... potential to improve patient outcomes. These studies were ... Society of Gynecologic Oncology (SGO) 2015 Annual Meeting ...
Breaking Biology Technology:PMG Research announces formation of VaxCorps with two industry-leading vaccine site networks 2Yale University and Novogen Release Data on Cantrixil Mode of Action 2Yale University and Novogen Release Data on Cantrixil Mode of Action 3Yale University and Novogen Release Data on Cantrixil Mode of Action 4Laser Energy Advances Among Reports Set for SPIE Optics + Optoelectronics 2Laser Energy Advances Among Reports Set for SPIE Optics + Optoelectronics 3Caris Molecular Intelligence Facilitates Comparison of Biomarker Profiles to Inform Targeted Treatment Strategies in Distinct Gynecological Cancers 2Caris Molecular Intelligence Facilitates Comparison of Biomarker Profiles to Inform Targeted Treatment Strategies in Distinct Gynecological Cancers 3Caris Molecular Intelligence Facilitates Comparison of Biomarker Profiles to Inform Targeted Treatment Strategies in Distinct Gynecological Cancers 4
... ... Surgeons directory service and website at www.TrustedLASIKSurgeons.com to provide a ... qualified LASIK surgeon who can help improve their chances of attaining 20-20 ... screening process ensuring that only those who are among the best in ...
... SAN FRANCISCO, Sept. 22 OrbusNeich today announced that the ... that the company,s Genous Bio-engineered R stent is safe and effective ... diabetes mellitus. , , The study evaluated 4,987 ... (TVF) rate of 8.1 percent at 12 months with a follow-up ...
... ... the state,s economy were confirmed by two recent economic reports issued by the Hawaii ... Leroy Laney. , ... Honolulu, HI (Vocus) Sept. 22, 2009 -- The seed industry,s significant contributions to the ...
Cached Biology Technology:LASIK Surgery Specialist G. Brock Magruder, Jr., M.D. of LaserVue Lasik Center of Orlando Joins the Trusted LASIK Surgeons Directory 2LASIK Surgery Specialist G. Brock Magruder, Jr., M.D. of LaserVue Lasik Center of Orlando Joins the Trusted LASIK Surgeons Directory 3LASIK Surgery Specialist G. Brock Magruder, Jr., M.D. of LaserVue Lasik Center of Orlando Joins the Trusted LASIK Surgeons Directory 4LASIK Surgery Specialist G. Brock Magruder, Jr., M.D. of LaserVue Lasik Center of Orlando Joins the Trusted LASIK Surgeons Directory 5LASIK Surgery Specialist G. Brock Magruder, Jr., M.D. of LaserVue Lasik Center of Orlando Joins the Trusted LASIK Surgeons Directory 6LASIK Surgery Specialist G. Brock Magruder, Jr., M.D. of LaserVue Lasik Center of Orlando Joins the Trusted LASIK Surgeons Directory 7Final 12 Month Clinical Data from 5,000 Patients in Worldwide e-HEALING Clinical Study Show Good Safety and Efficacy with Real World Use of OrbusNeich's Genous(TM) Bio-engineered R stent(TM) 2Final 12 Month Clinical Data from 5,000 Patients in Worldwide e-HEALING Clinical Study Show Good Safety and Efficacy with Real World Use of OrbusNeich's Genous(TM) Bio-engineered R stent(TM) 3Final 12 Month Clinical Data from 5,000 Patients in Worldwide e-HEALING Clinical Study Show Good Safety and Efficacy with Real World Use of OrbusNeich's Genous(TM) Bio-engineered R stent(TM) 4Economic Strength of Hawaii Seed Crop Industry Confirmed by Recent Reports 2Economic Strength of Hawaii Seed Crop Industry Confirmed by Recent Reports 3
... Continuing a tradition of progressive centrifuge ... CL3 series. The Centra-CL3 and Centra-CL3R (refrigerated) ... todays laboratory., Quality Control Over Sample ... and lock up to 99 protocols and ...
p230 trans Golgi Purified Anti-Human clone 15, Isotype Mouse IgG 1 , 50 µg Consult technical datasheet for details....
... I Large (Klenow) Fragment, Exonuclease Minus, is ... the 5´→3´ and the 3´→5´ exonuclease activities ... I (1,2). It is used for random ... amplification (5). Klenow Fragment, Exonuclease Minus, will ...
... PGE2 is one of several isoprostanes produced from ... potent renal vasoconstrictor in the rat. 8-iso PGE2 ... values of 0.5 and 5 µM, respectively. When ... at a concentration of 4 mg/kg/min, 8-iso PGE2 ...
Biology Products: