Using a technique called DNA barcoding, which involves the identification of species from a short DNA sequence, Weiblen and an international team of researchers studied populations of numerous moth and butterfly species across Papua New Guinea. DNA barcodes showed that migratory patterns and caterpillar diets are very dynamic. In one case, a tiny moth that is distributed from Taiwan to Australia, has recently crossed thousands of miles of Pacific Ocean.
The research, "Population genetics of ecological communities with DNA barcodes: An example from New Guinea Lepidoptera," was published in the Early Online edition of Proceedings of the National Academy of Sciences on March 1.
To view the complete article, visit http://www.pnas.org/content/early/2010/03/01/0913084107.full.pdf+html.
“DNA barcoding was developed for rapid identification but it also provides information about the habits and history of species,” Weiblen says. He says this technique is of particular interest in Papua New Guinea, a country slightly larger in size than California with an insect diversity more than three times that of the United States. “New Guinea is one of those special places on Earth where we know very little about its biodiversity. This rich natural environment is increasingly threatened by economic development, and I’m concerned about how much biodiversity might be lost before we’ve had a chance to understand it. DNA barcoding helps to increase the pace of discovery.”
Weiblen says that DNA barcoding can play an important role in studying the arrival of invasive species, such as the emerald ash borer, a species recently introduced from Asia. “We need to understand the genetic history of invasion in order to combat the pests that threaten trees and crops,” Weiblen says. “DNA barcoding can pinpoint the geographic source of an invading species and measure the distances over which pest species can travel.”
Weiblen is an associate professor of plant biology in the university’s College of Biological Sciences and a curator of plants in the Bell Museum, a unit of the College of Food, Agricultural and Natural Resource Sciences. He has studied plant and insect diversity of Papua New Guinea’s forests for the past 17 years. Weiblen’s colleagues in the DNA barcoding study were researchers from the Smithsonian Institution, the University of Guelph in Ontario, Canada, the University of South Bohemia, Czech Republic, as well as the University of Minnesota.
Jeff Falk | EurekAlert!
Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery
20.01.2017 | GSI Helmholtzzentrum für Schwerionenforschung GmbH
Seeking structure with metagenome sequences
20.01.2017 | DOE/Joint Genome Institute
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
20.01.2017 | Awards Funding
20.01.2017 | Materials Sciences
20.01.2017 | Life Sciences