Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Three new species of lemurs in Madagascar

08.03.2006


An international team, composed of Malagasy and European researchers, has just discovered three new species of lemurs, small primates endemic to Madagascar.


Lepilemur randrianasoli. Photo by: Nicole Andriaholinirina



The work carried out by this international team has enabled the identification of three new species of lemur based on the characteristics of their mitochondrial DNA : Lepilemur randrianasoli, L. aeeclis and L. sahamalazensis. They were discovered in the West and North West of Madagascar, bringing the number of species of lemur up to 11. This number probably underestimates the diversity of the Lepilemur genus, with other species no doubt waiting to be discovered in other parts of the island.

Lemurs are small, nocturnal, primates native to Madagascar, weighing around 800g. They belong to an endemic genus subject to great pressure by Man either by hunting or by deforestation, where the systematic is still much debated. Primates are divided into two suborders : Prosimians (Lemuroidea) and Simians, the latter comprising both monkeys and humans. Lemurs are classed as Prosimians.


Jointly supported by the University Louis Pasteur (ULP) and by the European Association for the Study and Conservation of Lemurs (A.E.E.C.L.), four Malagasy researchers from the University of Antananarivo have been working in collaboration with several European groups and with two laboratories in particular: the ULP research unit EA3428 "Espèce humaine et primates : variabilité et évolution" (Director Bertrand Ludes) and the "Deutsches Primatenzentrum" in Göttingen. By performing chromosomal and molecular biological studies, these researchers have determined the complete DNA sequence of a mitochondrial protein (cytochrome b), from 68 specimens from 21 different geographical locations. These results were compared to the preliminary chromosomal studies conducted on 99 known specimens. This helped establish a phylogenetic comparison between the species analysed in the current tests and those performed previously, enabling the researchers to define the classification of these lemurs.

The results obtained in this exemplary cooperation are of great importance to the understanding of the diversity and evolution of the Lepilemur genus in Madagascar, and form a solid base for future research programmes concerning the Malagasy fauna and its conservation.

Maria Isabel Pellon Zarragoitia | alfa
Further information:
http://www-ulp.u-strasbg.fr/

More articles from Ecology, The Environment and Conservation:

nachricht Dune ecosystem modelling
26.06.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau

nachricht Understanding animal social networks can aid wildlife conservation
23.06.2017 | Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB)

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Study shines light on brain cells that coordinate movement

26.06.2017 | Life Sciences

Smooth propagation of spin waves using gold

26.06.2017 | Physics and Astronomy

Switchable DNA mini-machines store information

26.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>