Navigation Links
Thailand: Astonishing 10 new species of semi-aquatic freshwater earthworms revealed
Date:2/6/2013

The semi-aquatic earthworms in the genus Glyphidrilus are somewhat unfamiliar species that live between the terrestrial and freshwater ecosystems of rivers, streams, canals, ponds, swamps and paddy systems. Remarkably, each species is endemic to a single water basin, carrying its own signature of evolution from their common origin. A study describing ten newly discovered species of the genus has been published in the open access journal ZooKeys.

In Thailand, the species demonstrate astonishing biodiversity due to the monsoon climate contributing to drastic river system changes and a large variety of microhabitats. While general interconnections among these allow for gene flow, their great diversity leads to independent evolution and specialization in isolation.

The animals orient themselves vertically, with their bodies in the wet soil along the banks and tails placed on the soil surface. Among the interesting characteristics of these worms is a rounded body tip, while the end is square shaped. When twisted, the posterior end, which is normally above the soil surface, forms U-shaped channels. These are used to allow water circulation down the burrow. This is probably an evolutionary adjustments that ensures oxygen transport to the deeper surface of the worms, while their bodies remain in the burrows.

Another peculiar feature are the so-called "wings", or the expanded part of epidermis near the body tip. The function of the wings is still unknown to scientists, but it has been suggested that they evolved to assist breathing in such aquatic habitats. Because the wings will be located deep in the burrow at a low oxygen supply and are absent in sexually immature juveniles, a more conventional explanation might be that they are used to aid copulation rather than respiration.

Among the natural habitats of these worms are the rice fields in Thaila
'/>"/>

Contact: Somsak Panha
Somsak.Pan@chula.ac.th
66-819-967-910
Pensoft Publishers
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Biocontrol research on Brazilian peppertree in Florida discovers new cryptic species
2. Polar bear researchers urge governments to act now and save the species
3. 24 new species of flower fly have been found in Central and Southern America
4. Previous unknown fox species found
5. Novel approach to track migration of arctic-breeding avian species
6. Invading species can extinguish native plants despite recent reports
7. Low extinction rates made California a refuge for diverse plant species
8. A new fish species from Lake Victoria named in honor of the author of Darwins Dreampond
9. News for conservationists: Scientists challenge ideas about natural habitats and species diversity
10. 2 new species of orchid found in Cuba
11. Discovery of Africa moth species important for agriculture, controlling invasive plants
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Thailand: Astonishing 10 new species of semi-aquatic freshwater earthworms revealed
(Date:9/18/2014)... that when people are too stressed they are often ... Brain Mind Institute (BMI) at EPFL have just highlighted ... chronic stress and the loss of social skills and ... a synaptic regulatory molecule in the brain. This was ... . , Carmen Sandi,s team went to look ...
(Date:9/18/2014)... probably the ultimate form of camouflage: you don,t just ... strategy is not as uncommon as you might think. ... USA, explains that the larval life stages of many ... of the anatomy that most creatures cannot make transparent. ... to shield each individual eye unit with an opaque ...
(Date:9/18/2014)... their entire lives nestling in the protective tentacles of ... they sometimes travel hundreds of kilometres across the open ... fish has been predicted, this is the first time ... populations has been observed. , Dr Steve Simpson, Senior ... University of Exeter, and colleagues from the Australian Research ...
Breaking Biology News(10 mins):How stress tears us apart 2Transparent larvae hide opaque eyes behind reflections 2Expedition finds Nemo can travel great distances to connect populations 2Expedition finds Nemo can travel great distances to connect populations 3
... century, state-of-the-art anti-aging technologies may extend human lifespans at ... social and economic challenges, says biologist Shripad Tuljapurkar of ... advances would have major implications for the global community ... Morrison Professor of Population Studies, will give a talk ...
... Cell reports the discovery of a gene that drives ... potential new target for countermeasures against the lethal toxin, ... the potential to protect against anthrax during the late ... therapeutic value, they added. , The team found that ...
... biologist Ernst Mayr's theory of genetic revolution , introduced ... has many detractors. , Mayr believed that genes interacted ... turn led to an interaction of natural selection with ... of evolutionary change. , Detractors of the theory object ...
Cached Biology News:World faces challenge as life expectancies lengthen, scientist says 2World faces challenge as life expectancies lengthen, scientist says 3World faces challenge as life expectancies lengthen, scientist says 4Driver of anthrax toxicity could lead to late-stage therapy 2Ernst Mayr's theory illustrated in genetic epidemiology studies 2Ernst Mayr's theory illustrated in genetic epidemiology studies 3Ernst Mayr's theory illustrated in genetic epidemiology studies 4
(Date:9/20/2014)... HealthTronics, Inc. , a leading ... and services, has signed a distribution agreement through ... for its high precision laser technology. ... mobile, surgical technology—offering more choices for healthcare providers ... will make available Clinicon’s FDA-cleared SureLase™ CO2 Laser ...
(Date:9/19/2014)... 19, 2014  InterMune, Inc. (Nasdaq: ITMN ... of Understanding to settle the litigation in the Delaware ... of Merger dated as of August 22, 2014, among ... As one term of the Memorandum of Understanding, the ... in the attached exhibit reflecting the amendment to the ...
(Date:9/19/2014)... at NYU Langone Medical Center have found a way ... for turning adult cells into so-called pluripotent stem cells ... the new technique in mice, the researchers increased the ... by more than 20-fold compared with the standard method. ... thus should generally accelerate research aimed at using stem ...
(Date:9/19/2014)... 19, 2014 Follow us ... to revolutionize the world has attracted diverse players ... small start-ups. The early years of nanotechnology development ... due to the high risks involved, which deterred ... for this evolving technology have been growing over ...
Breaking Biology Technology:HealthTronics Announces Distribution Agreement with Clinicon-Laser Surgical Device Expands Minimally Invasive, Mobile Technology Portfolio 2HealthTronics Announces Distribution Agreement with Clinicon-Laser Surgical Device Expands Minimally Invasive, Mobile Technology Portfolio 3InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 2InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 3InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 4InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 5InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 6InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 7InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 8InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 9InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 10InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 11InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 12InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 13InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 14InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 15InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 16InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 17InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 18InterMune Reports Memorandum of Understanding in Connection with Consolidated Delaware Action 19NYU Langone scientists report reliable and highly efficient method for making stem cells 2NYU Langone scientists report reliable and highly efficient method for making stem cells 3Growing R&D Investments & Developments in Nanomaterials to Drive the Global Nanotechnology Market, According to New Report by Global Industry Analysts, Inc. 2Growing R&D Investments & Developments in Nanomaterials to Drive the Global Nanotechnology Market, According to New Report by Global Industry Analysts, Inc. 3Growing R&D Investments & Developments in Nanomaterials to Drive the Global Nanotechnology Market, According to New Report by Global Industry Analysts, Inc. 4
... Ferring Pharmaceuticals Inc.,has announced that its hyaluronic ... the title sponsor of the EUFLEXXA National,Senior Games ... Year,Award., "This is such a tremendous opportunity ... Alex Drigan, Product Manager, EUFLEXXA(TM). "We,support all that ...
... MOUNTAIN VIEW, Calif., Jan. 28 Clontech Laboratories,Inc., ... announced the,imminent (February 20, 2008) release of its ... issue of Clontechniques, the company,s quarterly,newsletter. Based on ... Stanford, the ProteoTuner systems use a unique technology ...
... for Continued Development of CNDO103 as ... ... today,announced the publication of data demonstrating that the Bcl-2 inhibitor,Apogossypol, effectively ... than Gossypol in vivo in mice., Published online in Blood ...
Cached Biology Technology:Ferring Pharmaceuticals Announces EUFLEXXA(TM) as Title Sponsor of the National Senior Games Hockey Championships and the GeezerJock of the Year Award 2Ferring Pharmaceuticals Announces EUFLEXXA(TM) as Title Sponsor of the National Senior Games Hockey Championships and the GeezerJock of the Year Award 3Ferring Pharmaceuticals Announces EUFLEXXA(TM) as Title Sponsor of the National Senior Games Hockey Championships and the GeezerJock of the Year Award 4Clontech Laboratories, Inc. Releases the ProteoTuner(TM) Systems 2Study Shows Coronado Biosciences' Bcl-2 Inhibitor, Apogossypol, is More Efficacious, Less Toxic than Gossypol in Animal Models 2Study Shows Coronado Biosciences' Bcl-2 Inhibitor, Apogossypol, is More Efficacious, Less Toxic than Gossypol in Animal Models 3
in vitro Translation, Accessory Products...
... RNA Quantitation Kit is one of ... the quantitation of RNA in solution. ... more sensitive than absorbance measurements. As ... detected with fluorescence microplate readers and ...
Donor Horse Serum US Origin...
... added in Dec 2005 , Quantitative ... Detection from as little as 25 pg ... available for hundreds of mammalian miRNAs , ... , Ideal for validating expression profiling ...
Biology Products: