Navigation Links
After a 49-million-year hiatus, a cockroach reappears in North America
Date:1/5/2014

The cockroach in the genus Ectobius is a major textbook example of an invasive organism, and it is the most common cockroach inhabiting a large region from northernmost Europe to southernmost Africa.

Ectobius has a long fossil history in Europe, occurring in Baltic amber that is about 44 million years old, and its lineage was believed to have been exclusively from the Old World. However, a shocking new discovery has uprooted that view. In fact, it now appears that Ectobius may have originated in the New World.

Four ancient Ectobius species were recently discovered in the 49-million-year-old Green River Formation near Rifle, Colorado in deposits that are about five million years older than the Baltic amber. However, these cockroaches soon became extinct in North America. The cause for the extinction of Ectobius in North America in the dim past is unknown, but it evidently survived in the Old World, and western Europe in particular.

"About 65 years ago, several entomologists in the northeastern United States noted that four species of Ectobius were present in North America," said corresponding author Dr. Conrad Labandeira. "It was always assumed that these four newcomers were the first Ectobius species to have ever lived in North America. But the discovery in Colorado proves that their relatives were here nearly 50 million years ago."

In many ways the history of Ectobius mirrors that of the biogeographic history of the horse. Horses occurred in the New World and became extinct during the late Pleistocene ecological crisis. Horses, attached to human habitation, were subsequently introduced to North America by early Spanish explorers about 11,000 years after their demise.

The newly discovered species of Ectobius, specifically Ectobius kohlsi, are described in the January 2014 issue of Annals of the Entomological Society of America (DOI: '/>"/>

Contact: Dr. Conrad Labandeira
LABANDEC@si.edu
703-231-2756
Entomological Society of America
Source:Eurekalert  

Page: 1 2

Related biology news :

1. 1 year after Fukushima
2. AGU: Venice hasnt stopped sinking after all
3. Black flies may have a purpose after all
4. Estrogen hormone reveals protective ability after traumatic brain injury
5. Obstructive sleep apneas damage evident after 1 month
6. Scientists read the ash from the Icelandic volcano 2 years after its eruption
7. Microbial communities shifted dramatically after Deepwater Horizon spill
8. Regenerated cells may restore vision after corneal dysfunction
9. Cinega de Santa Clara unchanged after pilot run of Yuma Desalting Plant
10. Promiscuous squid fatigued after mating
11. Ethylene of no effect - why peppers do not mature after picking
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
After a 49-million-year hiatus, a cockroach reappears in North America
(Date:7/23/2014)... Tracking of blue whales by satellite over a 15-year ... whales consistently return to feed in specific locations each ... in the open-access journal PLOS ONE by ... data may be used to mitigate human threats to ... has been slow to recover since the establishment of ...
(Date:7/23/2014)... cystic fibrosis patients, scientists at the UNC School of ... that a new CF drug counteracts the intended beneficial ... published today in the journal Science Translational Medicine ... and loses its ability to function properly when in ... several insights into how novel CF pharmacotherapies could be ...
(Date:7/23/2014)... , , , , , ... , , , , ... diseases and extend healthy lifespan. The idea, they argue, would be to target the... , , ... , , , , , ... , , , , , , , Medicine ...
Breaking Biology News(10 mins):Blue whales' dangerous feeding grounds 2UNC researchers find unsuspected characteristics of new CF drugs, offering potential paths to more effective therapies 2UNC researchers find unsuspected characteristics of new CF drugs, offering potential paths to more effective therapies 3UNC researchers find unsuspected characteristics of new CF drugs, offering potential paths to more effective therapies 4Strategy proposed for preventing diseases of aging 2Strategy proposed for preventing diseases of aging 3Strategy proposed for preventing diseases of aging 4Strategy proposed for preventing diseases of aging 5
... several proteins in mice that might act as biomarkers ... step to finding a more reliable way to detect ... teenagers use illegally to boost muscle and reduce fat. ... San Francisco today, scientists John Kopchick and Juan Ding ...
... the White House must be enhanced so that the ... nationfrom energy and the environment, to national security, and ... collaborate internationally. The report,s primary recommendations are that: ... respected leader to be Assistant for Science and Technology ...
... 2008 Mary Tyler Moore, the Juvenile Diabetes Research ... M.D., presented the sixth annual "Excellence in Clinical Research ... annual conference today in Washington, DC. The recipients ... director of the JDRF Gene Therapy Center for Diabetes ...
Cached Biology News:Scientists find potential protein biomarkers for growth hormone 2White House science office needs upgrade 2White House science office needs upgrade 3Florida researchers receive JDRF 'Excellence in Clinical Research Award' 2
(Date:7/23/2014)... July 23, 2014 DuPont Pioneer announced ... as vice president of Agricultural Biotechnology (ABT), effective July ... he served most recently as president, chief executive officer ... business leadership in the seed and crop protection industry ... Paul E. Schickler , president of DuPont Pioneer. “I ...
(Date:7/23/2014)... , July 23, 2014  Sofinnova Ventures, a ... announced the closing of Sofinnova Venture Partners IX, L.P. ... excess of the initial fund target of $425 million. ... successful biotechnology companies. Consistent with recent funds, SVP IX ... stage clinical programs, along with select investments in earlier ...
(Date:7/23/2014)... Adult stem cells that are required ... not magical. However, many current regenerative medicine ... if they were magical. , Many current clinical ... “stem cell tourism,” are evaluating heterologous tissue stem ... regenerative medicine therapies. In reality, these are not ...
(Date:7/22/2014)... of Standards and Technology (NIST) and California Institute ... for an atomic clock that is based on ... The microcomb clock, featured on the cover of ... Optica ,* is the first demonstration of all-optical ... of optical frequencies to lower microwave frequencies. (Optical ...
Breaking Biology Technology:DuPont Pioneer Names Neal Gutterson to Lead Agricultural Biotechnology 2DuPont Pioneer Names Neal Gutterson to Lead Agricultural Biotechnology 3Sofinnova Raises $500 Million Biotech Venture Fund 2The Adult Stem Cell Technology Center, LLC Continues to Develop Technologies for Homologous Adult Stem Cell Therapies and Drug Development 2The Adult Stem Cell Technology Center, LLC Continues to Develop Technologies for Homologous Adult Stem Cell Therapies and Drug Development 3The Adult Stem Cell Technology Center, LLC Continues to Develop Technologies for Homologous Adult Stem Cell Therapies and Drug Development 4The Adult Stem Cell Technology Center, LLC Continues to Develop Technologies for Homologous Adult Stem Cell Therapies and Drug Development 5'Comb on a chip' powers new NIST/Caltech atomic clock design 2
... work showing how nanowires carved in impurity-laden diamond ... developed a scalable manufacturing process to craft arrays ... photon control. The development supports efforts to ... stage for diamond-based microchips. Additionally, the technology ...
... 2011 Applied Precision is proud to announce ... super-resolution microscopy system at McGill University in Montreal, ... is a super-resolution microscope utilizing proven three-dimensional structured ... in volume resolution and outstanding widefield imaging capabilities. ...
... Ohio, Oct. 18, 2011 Minimally Invasive Devices, Inc ... new product, FloShield PLUS , utilizing the novel Flo-X ... of the end of the laparoscope without removal from the ... MID,s FloShield laparoscopic visualization system. In the first 19 FloShield ...
Cached Biology Technology:Diamonds, silver and the quest for single photons 2Diamonds, silver and the quest for single photons 3Applied Precision Announces the 25th Installation of Its DeltaVision OMX Super-Resolution Microscope at McGill University 2