Navigation Links
Scientists from Mainz and Antananarivo describe Lavasoa Dwarf Lemur as new primate species
Date:7/29/2013

The island of Madagascar harbors a unique biodiversity that evolved due to its long-lasting isolation from other land masses. Numerous plant and animal species are found solely on Madagascar. Lemurs, a subgroup of primates, are among the most prominent representatives of the island's unique fauna. They are found almost exclusively on Madagascar. The only exceptions are two species of the genus Eulemur that also live on the Comoros Islands, where they probably have been introduced by humans. Thanks to extensive field research over the past decades, numerous previously unknown lemur species have been discovered. Dwarf lemurs in turn received relatively little attention to date and the diversity within this genus is still not well known. Researchers of the universities of Mainz and Antananarivo have investigated lemur populations in southern Madagascar. Based on fieldwork and laboratory analyses, they now identified a previously unknown species of dwarf lemur. The findings of the research project have recently been published in the journal Molecular Phylogenetics and Evolution.

"Together with Malagasy scientists, we have been studying the diversity of lemurs for several years now," said Dr. Andreas Hapke of the Institute of Anthropology at Johannes Gutenberg University Mainz (JGU). "It is only now that we were able to determine that some of the animals examined represent a previously unknown species." The newly described Lavasoa Dwarf Lemur (Cheirogaleus lavasoensis) inhabits three isolated forest fragments in the extreme south of Madagascar. According to current knowledge, it does not occur outside this area. The exact population size is unknown. Preliminary estimates indicate that there are less than 50 individuals remaining. The Lavasoa Dwarf Lemur is thus rare and extremely endangered.

The lifestyle of dwarf lemurs makes them extremely difficult to study as these nocturnal forest dwellers often remain in the upper parts of the forest canopy. Moreover, they hibernate for several months during the austral winter. Their main period of activity is the rainy season, when many of the forests they inhabit are virtually inaccessible to scientists. Nevertheless, the researchers were able to carefully capture a total of 51 dwarf lemurs in live traps at nine locations for this study and to take minute tissue samples before releasing the animals back into their natural habitat.

The tissue samples were subjected to molecular-genetic analyses at the Institute of Anthropology at Mainz University. The data generated through the process were then compared with data already published by other research groups. "The new data from southern Madagascar enabled us to significantly enlarge existing datasets," explained Dana Thiele of the JGU Institute of Anthropology. "We then used extensive data analyses to examine the genetic diversity in two closely related lemur genera, the mouse lemurs (Microcebus) and the dwarf lemurs (Cheirogaleus). The comparison showed that the species diversity of dwarf lemurs is greater than previously thought."

Andreas Hapke and Refaly Ernest, working as a local field assistant for the project, had discovered the first individuals of the Lavasoa Dwarf Lemur during a field study in Madagascar in 2001. Few genetic data from other parts of the island were available for comparison at that time. The animals were thus initially assigned to an already known species, Cheirogaleus crossleyi. Only now it was possible to ascertain that the Lavasoa Dwarf Lemur is a distinct species.


'/>"/>
Contact: Dr. Andreas Hapke
ahapke@uni-mainz.de
49-613-139-22723
Johannes Gutenberg Universitaet Mainz
Source:Eurekalert

Related biology news :

1. Neuroscience symposium bringing top scientists to Louisville, Aug. 1-2
2. University of Alberta scientists get dirty at the Robson Glacier
3. Gallo Center scientists identify key brain circuits that control compulsive drinking in rats
4. Scientists Develop New Way to Measure Cumulative Effect of Head Hits in Football
5. Scientists develop new way to measure cumulative effect of head hits in football
6. Scientists construct visual of intracellular zip code signaling linked to learning, memory
7. Scientists solve a 14,000-year-old ocean mystery
8. Scientists decipher cellular roadmap of disease-related proteins
9. Scientists discover ethnic differences in immune response to TB bacterium
10. Scientists identify promising antiviral compounds
11. Harvard and USC scientists show how DHA resolves inflammation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/13/2017)... , April 13, 2017 UBM,s Advanced Design ... will feature emerging and evolving technology through its ... Summits will run alongside the expo portion of the ... panels and demonstrations focused on trending topics within 3D ... design and manufacturing event will take place June 13-15, 2017 ...
(Date:4/11/2017)... , Apr. 11, 2017 Research and Markets ... 2017-2021" report to their offering. ... The global eye tracking market to grow at a CAGR ... Global Eye Tracking Market 2017-2021, has been prepared based on an ... the market landscape and its growth prospects over the coming years. ...
(Date:4/6/2017)... -- Forecasts by Product Type (EAC), Biometrics, ... (Transportation & Logistics, Government & Public Sector, Utilities / ... Facility, Nuclear Power), Industrial, Retail, Business Organisation (BFSI), Hospitality ... looking for a definitive report on the $27.9bn Access ... ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... (PRWEB) , ... October 11, 2017 , ... ... any gene in its endogenous context, enabling overexpression experiments and avoiding the use ... with small RNA guides is transformative for performing systematic gain-of-function studies. , ...
(Date:10/11/2017)... and LAGUNA HILLS, Calif. , Oct. ... Cancer Research, London (ICR) and University ... SKY92, SkylineDx,s prognostic tool to risk-stratify patients with multiple myeloma ... MUK nine . The University of Leeds ... partly funded by Myeloma UK, and ICR will perform the ...
(Date:10/10/2017)... Los Angeles, CA (PRWEB) , ... ... ... Pharmaceuticals, Inc., a development-stage cancer-focused pharmaceutical company advancing targeted antibody-drug conjugate (ADC) ... all uses of targeted HPLN (Hybrid Polymerized Liposomal Nanoparticle), a technology developed ...
(Date:10/10/2017)... (PRWEB) , ... October 10, 2017 , ... ... innovation and business process optimization firm for the life sciences and healthcare industries, ... conference in San Francisco. , The presentation, “Automating GxP Validation for Agile ...
Breaking Biology Technology: