Navigation Links
Millipede border control better than ours
Date:12/23/2011

A mysterious line where two millipede species meet has been mapped in northwest Tasmania, Australia. Both species are common in their respective ranges, but the two millipedes cross very little into each other's territory. The 'mixing zone' where they meet is about 230 km long and less than 100 m wide where carefully studied.

The mapping was done over a two-year period by Dr Bob Mesibov, who is a millipede specialist and a research associate at the Queen Victoria Museum and Art Gallery in Launceston, Tasmania. His results have been published in the open access journal ZooKeys.

'I have no idea why the line is so sharp', said Dr Mesibov. 'The boundary runs up and down hills, crosses rivers and different bedrocks and soils, and ignores vegetation type and climate differences. Its position and its sharpness seem to be the result of an unexplained biological arrangement between the two millipede species.'

Biogeographers use the term 'parapatry' for the case where two species ranges meet but do not overlap, or overlap very little. Dr Mesibov said that parapatry has been reported before in other species of millipedes and in other terrestrial invertebrate animals, in Tasmania and elsewhere in the world. However, parapatric boundaries often parallel a geographical feature, such as a ridgeline, or a steep rainfall gradient.

'There does not seem to be an ecological or a geographic explanation for this particular boundary, or for any part of it. It is also longer than any other parapatric boundary I know about. At 230 km, it is 50% longer than the boundary between England and Scotland, and the 'border control' is a lot better than what we humans can do.'

The two millipede species, Tasmaniosoma compitale and <
'/>"/>

Contact: Dr. Bob Mesibov
mesibov@southcom.com.au
Pensoft Publishers
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Genetic study of cave millipedes reveals isolated populations and ancient divergence between species
2. The secret life of millipedes
3. Atlas of European Millipedes published by Pensoft
4. Customs and Border Protection Opens Pedestrian Border Crossing System in El Paso with Support from Unisys
5. Trees on tundras border are growing faster in a hotter climate
6. La Jolla Institute discovers novel mechanism for preventing infection via bodys mucosal borders
7. ESHRE sets standards for cross-border reproductive care
8. Scientists Without Borders awards $10,000 to solvers of maternal health and nutrition challenge
9. Crossing borders in language science: What bilinguals tell us about mind and brain
10. Cross-border conservation vital to protect birds in a climate-change world
11. Porous China-Myanmar border allowing illegal wildlife trade
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Millipede border control better than ours
(Date:9/29/2014)... PULLMAN, Wash. Scientists at Washington State University ... specifically, Granny Smith apples may help prevent ... be the first to assess these compounds in ... in October,s print edition of the journal ... apples are a good source of these nondigestible ...
(Date:9/29/2014)... have found compounds that boost liver detoxification enzymes nearly ... placethe crushed seeds left after oil extraction from an ... compounds in Camelina sativa seed, also known ... phytochemicals that work together synergistically far better than they ... supplement because its bioactive ingredients increase the liver,s ability ...
(Date:9/29/2014)... is often deemed inaccessible or esoteric. Yet in the ... in our daily lives and a decisive role in ... behind the scenes. , UC Santa Barbara,s Paul Atzberger, ... assistant professor of mechanical engineering, often works in areas ... research published in the Proceedings of the National ...
Breaking Biology News(10 mins):An apple a day could keep obesity away 2New way to detox? 'Gold of Pleasure' oilseed boosts liver detoxification enzymes 2At the interface of math and science 2At the interface of math and science 3At the interface of math and science 4
... institutions, led by Stanford University and Brown University, have ... federal funding to learn both how the brain and ... can be done to encourage recovery from injury. ... developing the neurotechnology to ultimately enable an entirely new ...
... find answers about ovarian cancer, researchers now have something to ... been using the chicken as a model to study this ... with flaxseed decreases severity of ovarian cancer and increases survival ... of alpha-linolenic acid, one type of omega-3 fatty acid. Several ...
... normally infect rodents, but they are also infectious for ... symptoms in humans. Most importantly, these viruses have an ... any damage to healthy tissue. Therefore, scientists in the ... German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ) have been ...
Cached Biology News:New Stanford-led program aims to produce insights into brain injury, recovery 2New Stanford-led program aims to produce insights into brain injury, recovery 3Flaxseed-fed chickens shed light on ovarian cancer 2Flaxseed-fed chickens shed light on ovarian cancer 3Viruses against cancer 2Viruses against cancer 3
(Date:9/27/2014)... special section on single-photon detection, generation, and applications ... technologies with applications in areas as diverse as ... by providing more accurate measurement methods and new ... SPIE, the international society for optics and photonics, ... , The section appears in the August issue, ...
(Date:9/27/2014)... Texas at Dallas have created technology that could be ... sources or, more immediately, a smartphone that doesn,t die ... technology, published online in Nature Communications ... to control energy consumption inside transistors, which are at ... from the Erik Jonsson School of Engineering and Computer ...
(Date:9/26/2014)... , Sept. 26, 2014 China Cord Blood Corporation (NYSE: ... leading provider of cord blood collection, laboratory testing, hematopoietic ... the Company will hold its 2014 annual general meeting of shareholders ... Bank of China Tower, 1 Garden Road, Central, Hong ... 11, 2014 (8:00 a.m. U.S. Eastern Time on December 11, 2014). ...
(Date:9/26/2014)... Chester, NJ (PRWEB) September 26, 2014 ... of personal selling optimization technology and services for ... will present on Mobile Day at Digital Pharma ... October 21 at 10:30 a.m. , Steven Robinson, ... Director of Client Solutions, will be presenting “Test ...
Breaking Biology Technology:Single-photon detection, generation, and applications featured in Optical Engineering 2Single-photon detection, generation, and applications featured in Optical Engineering 3New UT Dallas technology may lead to prolonged power in mobile devices 2New UT Dallas technology may lead to prolonged power in mobile devices 3China Cord Blood Corporation to Hold Annual General Meeting in Hong Kong on December 11, 2014 2Pursuit to Present at Digital Pharma East 2
... CHARENTON-LE-PONT, France, January 10 Essilor,of America, Essilor ... in the United States with the acquisition,of Interstate ... independent,laboratories. Interstate,s two laboratories in Mansfield, Ohio and,Indianapolis, ... The,company has full-year sales of US$26 million and ...
... of,Maryland, Baltimore (UMB) BioPark today announced that Gliknik ... in the BioInnovation,Center, located in UMB BioPark,s Building ... for autoimmune diseases,and cancer, the foundation of which ... Professor and Chairman of the Department of,Otorhinolarynogology, University ...
... 9 Burrill Merchant Banking acted as,exclusive financial ... partnering of bilastine with the Menarini Group (Italy). ... bilastine rights in Europe,and other regions to Menarini ... is a new highly selective H1 antihistamine for ...
Cached Biology Technology:University of Maryland, Baltimore BioPark Signs Gliknik Inc. as First Tenant in Its BioInnovation Center in Building Two 2Burrill Merchant Banking Advises Faes Farma on Bilastine Licensing Agreement 2