Navigation Links
Role reversal as humans suck life out of leeches
Date:9/5/2007

Global warming may be to blame for the gradual extinction of cold-loving species, and the European land leech in particular, according to Ulrich Kutschera and colleagues from the University of Kassel in Germany and the Karl-Franzens-University of Graz in Austria. Their findings show that human-induced temperature increases over a 40-year period in the Graz region of Austria may have led to the near extinction of the local land leech Xerobdella lecomtei. The study (1) will be published in the December issue of Springers journal Naturwissenschaften.

Back in 1868 a new leech was discovered in Austria, in the moist soil of a mountain far away from any freshwater pond or stream. This unusual annelid was the European land leech X. lecomtei. Between 2001 and 2005, Kutschera and team were only able to find one living juvenile Xerobdella individual in the birch forests around Graz in Austria, suggesting that this leech had become virtually extinct.

Kutscheras team studied the single leech and described in detail both its morphology and feeding behavior, as there had previously only been one published report on the biology of Xerobdella. Once the leech died, the researchers extracted mitochondrial DNA to sequence it. Their analysis showed that X. lecomtei is not a member of the tropical land leeches (family Haemadipsidae), as previously thought, but may be a relative of the amphibious-terrestrial Haemopidae/Hirudinidae, which prefer cooler climates.

The researchers also looked at data documenting the human-induced climate change in Austria over the last four decades, which showed that between 1961 and 2004, the average summer temperatures in the area rose by over 3 OC. The observed decline in the local leech population around Graz mirrors this temperature rise. This increase in air temperature led to a drastic reduction in the moisture content of the soil where the land leech X. lecomtei lives. In the authors opinion, this recent hum
'/>"/>

Contact: Joan Robinson
joan.robinson@springer.com
49-622-148-78130
Springer
Source:Eurekalert

Page: 1 2

Related biology news :

1. Reversal of role for a viral protein associated with the development of lymphoma
2. Infused spleen cells found not to impact islet recovery and reversal of type 1 diabetes in mice
3. Chromosomal abnormalities in sperm higher after vasectomy reversal
4. Yale researchers identify molecule for detecting parasitic infection in humans
5. Friendly bacteria in humans may protect against HIV
6. The lopsided brain: Attention bias is shared by humans and birds
7. Oldest cranial, dental and postcranial fossils of early modern European humans confirmed
8. Retrovirus struck ancestors of chimpanzees and gorillas millions of years ago, but did not affect ancestral humans
9. UI researcher studies deafness in fruit flies, humans
10. Chickadees can help humans get their bearings
11. Study shows humans have ability to track odors, much like bloodhounds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/10/2014)... RALEIGH, N.C. , Dec. 9, 2014  Valencell, ... announced it is seeing a staggering demand from its ... demand, the Company revealed, is not solely coming from ... industries as well. "A wearable is only ... a result, accuracy is the ultimate driver in long-term ...
(Date:12/10/2014)... CIE San Diego has launched an innovative ... tissue that enhances care coordination among social service and ... information; earned a second $1 million grant from the ... aging in community and; will be recognized as a ... 4-6p. CIE San Diego today announced ...
(Date:12/10/2014)... , December 9, 2014 ... ITN,s BCARD Platform   ... enterprise meeting scheduling solutions for business-to-business (B2B) events, ... world leader in mobile near-field communication (NFC), Bluetooth ...      (Logo: http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow ...
Breaking Biology News(10 mins):Wearable Technology Products Demand Highly Accurate Biometric Technology 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 4Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3
... coin or a watch can be dangerous for people ... is allergic to the metal. "This raises the question ... Professor Dr. Markus Rettenmayr of the Friedrich Schiller University ... for cardiovascular implants in minimal invasive surgery. Once implanted, ...
... CHICAGO Solving crucial environmental issues such as ... interests, uncertainty and risk, and this is best ... Arizona State University Barrett Honors College ... which scientists, stakeholders and policy makers can communicate ...
... a range of climate change mitigation scenarios are discussed, ... of sulfate particles into the atmosphere to reflect sunlight ... a severe threat if not maintained indefinitely and supported ... The new study, published today, 18 February, in IOP ...
Cached Biology News:Metal in the heart is non-hazardous to health 2Environmental issues examined through cohesive efforts 2Researchers warn against abrupt stop to geoengineering method 2
(Date:12/24/2014)... Dec. 24, 2014   BioLife Solutions , Inc. ... and marketer of proprietary clinical grade hypothermic storage ... precision thermal shipping products for cells and tissues  ... hold its 2015 Annual Meeting of Stockholders on May ... expected date for the Annual Meeting represents a change ...
(Date:12/24/2014)... MD (PRWEB) December 23, 2014 ... into law H.R. 83, the Omnibus and Continuing ... first time, made hydrocephalus a condition eligible to ... Programs (CDMRP) administered by the Department of Defense ... with its allies on Capitol Hill, is celebrating ...
(Date:12/24/2014)... December 23, 2014 Pipette.com announces their ... Twitter followers can submit their #HolidayInTheLab pictures for a ... lab mates. , For those struggling to think of ... Pipette.com Holiday in the Lab Contest provides the ideal ... followers to send pictures of their chemistree, holiday ...
(Date:12/24/2014)... SARASOTA, Fla. , Dec. 23, 2014  Rock ... today that it has filed a Clinical Trial Application ... Medicines Healthcare products Regulatory Agency (MHRA) seeking regulatory approval ... its lead molecule, Anatabine Citrate. Contingent on ... to conduct a Phase I trial to assess the ...
Breaking Biology Technology:BioLife Solutions Sets Date for Annual Meeting of Stockholders 2Rare Brain Condition Now Eligible for Department of Defense Research Dollars 2Major Pipette Distributor Pipette.com Announces their Holiday in the Lab Contest 2Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 2Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 3
... , , ... , , , Duplications and ... different methods are used for detecting such rearrangements,most based on either ... accurate, but very labour intensive and expensive,while quantitative PCR methods are ...
... , ... , , , Slab ... the separated bands,of an unknown sample to a known,standard (size ... estimated. The Agilent,2100 bioanalyzer is an instrument,which utilizes LabChip,technology to ...
... , , ... , , , , Gene expression ... for analyzing cellular behavior in a micro,scale and is used in ... of RNA from specific cell,populations out of their surrounding tissue environment. ...
Cached Biology Technology:Rapid detection of genomic,duplications and deletions using,the Agilent 2100 bioanalyzer 2Rapid detection of genomic,duplications and deletions using,the Agilent 2100 bioanalyzer 3Rapid detection of genomic,duplications and deletions using,the Agilent 2100 bioanalyzer 4Rapid detection of genomic,duplications and deletions using,the Agilent 2100 bioanalyzer 5High resolution DNA analysis with the,DNA 500 and DNA 1000 LabChip kits 2High resolution DNA analysis with the,DNA 500 and DNA 1000 LabChip kits 3High resolution DNA analysis with the,DNA 500 and DNA 1000 LabChip kits 4High resolution DNA analysis with the,DNA 500 and DNA 1000 LabChip kits 5Quality assurance of RNA derived from,laser microdissected tissue samples,obtained by the PALM MicroBeam System,using the RNA 6000 Pico LabChip kit. 2Quality assurance of RNA derived from,laser microdissected tissue samples,obtained by the PALM MicroBeam System,using the RNA 6000 Pico LabChip kit. 3Quality assurance of RNA derived from,laser microdissected tissue samples,obtained by the PALM MicroBeam System,using the RNA 6000 Pico LabChip kit. 4Quality assurance of RNA derived from,laser microdissected tissue samples,obtained by the PALM MicroBeam System,using the RNA 6000 Pico LabChip kit. 5Quality assurance of RNA derived from,laser microdissected tissue samples,obtained by the PALM MicroBeam System,using the RNA 6000 Pico LabChip kit. 6Quality assurance of RNA derived from,laser microdissected tissue samples,obtained by the PALM MicroBeam System,using the RNA 6000 Pico LabChip kit. 7Quality assurance of RNA derived from,laser microdissected tissue samples,obtained by the PALM MicroBeam System,using the RNA 6000 Pico LabChip kit. 8
... Polymerase is ideal for high-fidelity amplification ... such as cloning and mutagenesis. ... proprietary enzyme preparation containing recombinant DNA ... (3'Cut Site5' exonuclease) activity. Platinum ...
... PLAU N-term Antibody This antibody is generated ... synthetic peptide selected within aa 50~150 of ... in PBS with 0.09% (W/V) sodium azide. ... G column and eluted out with both ...
...
Human interferon-beta (IFN-beta). Recognizes amino acids 30-47 of IFN-beta. No cross-reactivity with Human IFN-alpha or IFN-gamma....
Biology Products: