A new study undertaken by researchers at UCLA, Uppsala University and National Museum of Natural History, Smithsonian Institution and published in the journal Molecular Ecology, suggests that plans to reintroduce American gray wolves to the Western US will not restore the population to the near same extent of genetic diversity it originally boasted.
As a result of the most extensive and systematic predator elimination program ever practiced by a government, the gray wolf was eradicated from the Western US and Mexico by the mid-20th century. However, this extinction, and the damage done to natural ecosystems, could conceivably be reversed through natural migration and reintroduction from surviving wolf populations in Canada.
Unfortunately, the new research indicates that the genetic diversity of historic US wolves was much greater than that of contemporaneous Canadian wolves because historic US wolves lived in an Ice Age, rich in genetic diversity. Approximately 400,000 wolves existed historically in the western coterminous US, suggesting that past ecosystems were dominated by gray wolves and were profoundly altered by their absence.
Dr Jennifer Leonard | alfa
Waste in the water – New purification techniques for healthier aquatic ecosystems
24.07.2018 | Eberhard Karls Universität Tübingen
Plenty of habitat for bears in Europe
24.07.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
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