Special section: Invasive species

the New Zealand government decide that the risks of importing the channel catfish for aquaculture were too great. This work is by Colin Townsend of the University of Otago in New Zealand.

  • Invasions often owe their success to fundamental biological differences between introduced populations and the original populations in their native range. A prime example is Argentine ants, which are now found on six continents. In their native range Argentine ant colonies attack outsiders, which are distinguished via chemical cues based on genetic differences. But the introduced colonies generally don't attack each other because they can't distinguish each other -- they are quite similar genetically because they descended from a small number of introduced ants. The result is that the introduced colonies cooperate with each other, forming "supercolonies" that outnumber and wipe out native ants. "A single supercolony occupies virtually all [of the Argentine ant's] California range," say Neil Tsutsui of the University of California at Davis and Andrew Suarez of the University of California at Berkeley.

  • While only a small percentage of introduced species actually become invasive, it's hard to predict which ones will. One of the reasons is that some species rapidly adjust to or evolve in new environments. "With the introduction of non-native species, evolution is our largest source of uncertainty and therefore our largest source of anxiety," say Ingrid Parker, Joseph Rodriguez and Michael Loik of the University of California at Santa Cruz. "We lose the ability to predict where an introduced species will end up and what sort of impact it will have."

  • Biocontrol should be a last resort because it can do more harm than good. The problem is that the natural enemies introduced to control invasive non-native species can also harm native species. And more often than not, biocontrol doesn't even work. One reason is that the tests to predict the effectiveness an

  • Contact: Fred Allendorf
    Society for Conservation Biology

    Page: 1 2 3

    Related biology news :

    1. Special training may help people with autism recognize faces
    2. Specialized brain helped ancient reptiles fly and hunt
    3. Special report: Personal genomics
    4. Special section: Habitat fragmentation can amplify
    5. Specialty license plate to fund whale research
    6. Special session planned at society of toxicology meeting ont he role of the environment in Parkinsons disease
    7. Special four-day symposium on MTBE and drinking water
    8. LSU Ag Center Brucellosis Specialist May Help Stem Bison Controversy
    9. The Evolution Of Beauty, Part Of A Special Section On The Evolution Of Sex In The 25 September 1998 Science
    10. Scientists Show How Defects Can Improve Technology In Science Magazines Special Issue On Materials Science
    11. Successful Specialist Care For Cystic Fibrosis Patients From Childhood To Adulthood

    Post Your Comments:

    (Date:5/6/2020)... HANOVER, Md. and LEXINGTON, Mass. (PRWEB) , ... May 06, 2020 ... ... Hemanext Inc. , a privately held medical technology company dedicated to improving the ... to announce a new partnership that will help SCDAA deliver on its mission and ...
    (Date:5/1/2020)... (PRWEB) , ... April 30, 2020 , ... ... emerging infectious diseases, announced today that it had been awarded a contract from ... the Assistant Secretary for Preparedness and Response at the U.S. Department of Health ...
    (Date:4/30/2020)... ... 2020 , ... At the start of 2020 ILC ... a wide range of industries including pharmaceutical and biopharmaceutical manufacturing, healthcare, food and ... decade, it was clear to company leadership that they would have to adapt ...
    Breaking Biology News(10 mins):
    (Date:5/15/2020)... ... ... Sentien Biotechnologies, Inc., a clinical-stage biotechnology company developing novel approaches to cell ... will continue to lead Sentien’s Board of Directors, a role he has filled for ... Sentien’s management team. , Mr. Ganz has more than 30 years of ...
    (Date:5/9/2020)... (PRWEB) , ... May 08, 2020 , ... Worldwide ... of their successful business program on Sunday, May 10, 2020 and Wednesday, May 13, ... coast! This episode’s exclusive interviews will spotlight key executives from Techolution and ...
    (Date:4/26/2020)... ... April 23, 2020 , ... ... today, an online store providing applications and services for use on Microsoft Azure. ... business needs to sign up online for a built-for-purpose customer engagement capability to ...
    (Date:4/18/2020)... ... April 17, 2020 , ... ... (NSF) Small Business Innovation Research (SBIR) program to support the expansion of its ... from the NSF, which conducts a rigorous merit-based review process, adds to ...
    Breaking Biology Technology:
    Cached News: