One of the invasive mosquitoes, the Asian tiger mosquito (Aedes albopictus), can carry dengue fever, a viral disease that sickens 50 to 100 million people a year in the tropics, so this seemingly inconsequential struggle has implications for human health.
"Size is having a major effect in terms of how the prey are getting consumed," said Barry Alto, a medical entomologist with the State Natural History Survey at the University of Illinois and principal investigator on the study.
"This is another mechanism that allows the native mosquito to hang on and co-exist with the invasive mosquitoes in certain areas where predators are present," Alto said.
The Asian tiger mosquito was first detected in the U.S. in 1985 in a shipment of used tires to a Texas port. Like the native mosquito, it lays its eggs in watery containers, including tires. Even if the water evaporates, a splash of rain and a supply of nutrients such as the microbes that feed on dead leaves are all that the larvae need to hatch and grow.Once found only in tropical and subtropical regions of Southeast Asia, the Asian tiger mosquito has now spread to Africa, the Americas, Australia, the Caribbean, Europe and the Middle East. Like the yellow fever mosquito (Aedes aegypti), another invasive mosquito that is now well established in the Americas, the Asian tiger mosquito can carry several viral diseases that afflict humans.
"We want to know: Where do the invasive and the native species co-exist? Where does one or the other go extinct? And what happens in the areas where there's no predator?" he said. The insights that come from such studies may also apply to other native and invasive species, he said.
The research team included Banugopan Kesavaraju, formerly of Illinois State University and now at Rutgers University; Steven Juliano, of Illinois State University; and L. Philip Lounibos, of the University of Florida. Kesavaraju is an expert in the behavior of A. albopictus and A. triseriatus. Juliano has expertise in predation and competitive interactions among container mosquitoes and developed a mathematical model for the study. Lounibos is an expert on the invasion biology of A. albopictus.
The National Institute of Allergy and Infectious Disease at the National Institutes of Health, and the National Science Foundation provided funding for this study.
Diana Yates | EurekAlert!
Unique genome architectures after fertilisation in single-cell embryos
30.03.2017 | IMBA - Institut für Molekulare Biotechnologie der Österreichischen Akademie der Wissenschaften GmbH
Transport of molecular motors into cilia
28.03.2017 | Aarhus University
The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
30.03.2017 | Health and Medicine
30.03.2017 | Health and Medicine
30.03.2017 | Medical Engineering