A new species of nocturnal gecko from northern Madagascar
2014-11-10
(Press-News.org) Hidden away in the tropical darkness of nocturnal Madagascar, scientists have discovered a new species of gecko which has been described in the open access journal Zoosystematics and Evolution.
A master of disguise, the new species Paroedura hordiesi has camouflage pattern to blend with its natural habitat, while climbing on rocks and the ruins of an old fort, where it was spotted by scientists.
Home of the new gecko, the karstic limestone massifs in the region of northern Madagascar are believed to still harbour further undescribed reptile species, some of which might be microendemic and threatened by substantial habitat destruction.
The new species P. hordiesi is also proposed to be classified as "Critically Endangered" on the IUCN Red List on the basis that it is known from a single location, and there is continuing decline in the extent and quality of its habitat.
The far north of Madagascar comprises a mosaic of heterogeneous landscapes ranging from rainforests on volcanic basement to deciduous dry forests in karstic massifs and littoral habitats on sandy ground. The geological and climatic diversity of this area is reflected by a high species diversity and a high degree of microendemism.
Several taxa including dwarf frogs (Stumpffia), dwarf chameleons (Brookesia), burrowing skinks (Paracontias), leaf-tail geckos (Uroplatus), and the nocturnal geckos of the genus Paroedura have undergone remarkable diversification in northern Madagascar due to the great diversity of habitats, which are separated from each other and thus in part constitute "habitat islands".
"The new Paroedura species from Montagne des Français described in our paper is just one new contribution to the taxonomic inventory of this massif, which is believed to hold yet undiscovered diversity. This discovery also highlights the threats affecting this microendemic species and other biota in the region." explains the lead author of the study Dr. Frank Glaw from the Bavarian State Collection of Zoology (ZSM).
INFORMATION:
Original Source:
Glaw F, Rösler H, Ineich I, Gehring P, Köhler J, Vences M (2014) A new species of nocturnal gecko (Paroedura) from karstic limestone in northern Madagascar. Zoosystematics and Evolution 90(2): 249-259. doi: 10.3897/zse.90.8705
[Attachments] See images for this press release:
ELSE PRESS RELEASES FROM THIS DATE:
2014-11-10
BOSTON - The innate immune system serves as the body's specialized armed forces division, comprised of a host of defense mechanisms used to battle bacterial infections. Among the system's warriors are white blood cells including the specialized macrophages, which maintain constant surveillance for foreign intruders or pathogens, functioning as the body's first line of defense, poised to attack at barrier sites including the skin, lungs and intestines.
Now, a research team led by investigators at Beth Israel Deaconess Medical Center (BIDMC) finds that naturally occurring ...
2014-11-10
Recognizing the emotions other people feel is crucial for establishing proper interpersonal relations. To do so, we look at (amongst other things) facial expressions and body posture. Unfortunately, in some neurological disorders this ability is heavily impaired. This happens, for example, in multiple sclerosis where scientific evidence shows that people affected by the disease often have trouble recognizing expressions that communicate emotions. A new study now demonstrates that the same difficulty may also be encountered with emotions conveyed by posture. In addition, ...
2014-11-10
A newly identified signaling pathway that stimulates glucose uptake in brown fat cells might be useful for treating type 2 diabetes and obesity, according to a study in The Journal of Cell Biology.
When the body encounters cold temperatures, the sympathetic nervous system activates adrenoceptors on the surface of brown fat cells to stimulate glucose uptake from the bloodstream. Brown fat cells then use this glucose as a fuel source to generate body heat. Glucose uptake also can be induced by insulin. However, although insulin-stimulated glucose-uptake is well understood, ...
2014-11-10
THE term 'spirituality' is now widely used to describe the qualities that give people hope, meaning and purpose. In the case of patients, it can aid their recovery. The University of Huddersfield has become a key centre for research into spirituality and how it can be integrated into health care teaching and practice.
Articles, overseas conference presentations and now close links with an NHS trust are among the recent outputs and activities of the University's Spirituality Special Interest Group, based in the School of Human and Heath Sciences. Established for ten ...
2014-11-10
WASHINGTON, Nov. 10, 2014 -- Throughout the history of science, many major discoveries came accidentally. Sometimes they came from recognizing potential in an unexpected product or even a failed recipe's waste. Other times, discovery came out of pure desperation from a seemingly dead-end experiment. This week, Reactions celebrates those happy accidents that ended up changing the world in the first episode of a new sub-series, "Legends of Chemistry." Check out the video here: http://youtu.be/Xowen_a787Y.
Subscribe to the series at Reactions YouTube, and follow us on Twitter ...
2014-11-10
A darting mouse may hold an important clue in the development of Attention Deficit Hyperactivity Disorder (ADHD), autism and bipolar disorder, according to a study by a Vanderbilt University-led research team recently published in the Proceedings of the National Academy of Sciences.
The transgenic mouse, into which was inserted a rare human genetic variation in the dopamine transporter (DAT), could lead to improvements in the diagnosis and treatment of these all-too-common brain disorders, said Randy Blakely, Ph.D., the report's senior author.
The mutation, which has ...
2014-11-10
AUGUSTA, Ga. - A gene known to play a major role in constricting blood vessels also appears to be a major player in the aberrant blood vessel growth that can destroy the vision of premature babies.
Endothelin gene expression is greatly increased in the retinal tissue of a mouse model of retinopathy of prematurity, a condition that significantly affects about 1,500 infants annually, resulting in blindness in about half those babies, according to researchers at the Medical College of Georgia at Georgia Regents University.
The finding points toward a new therapy to help ...
2014-11-10
Ann Arbor, MI, November 10, 2014 -- Public health researchers seeking to determine an individual's risk of developing cardiovascular disease (CVD), coronary heart disease (CHD), or stroke have previously relied on national US data, such as that provided by the National Health and Nutrition Examination Surveys (NHANES). Now, new data compiled and evaluated by researchers at the Centers for Disease Control and Prevention (CDC) provide information at the state level for the first time, paving the way for targeted intervention programs. Their results appear in the American ...
2014-11-10
(Boston)--A new study has found it is possible to distinguish between different hemorrhagic fevers, including Marburg (Ebola cousin) and Lassa before the person becomes symptomatic.
The study, which appears in the journal BMC Genomics will allow for the development of better diagnostics, especially during the early stages of disease, when treatments have a greater chance of being effective.
Hemorrhagic fevers include Lassa, which is endemic in Western Africa and Marburg, which causes sporadic outbreaks in Africa associated with high rates of mortality. The early symptoms ...
2014-11-10
Researchers from North Carolina State University and Hong Kong University of Science and Technology have found that temperature-controlled aggregation in a family of new semi-conducting polymers is the key to creating highly efficient organic solar cells that can be mass produced more cheaply. Their findings also open the door to experimentation with different chemical mixtures that comprise the active layers of the cells.
Polymer solar cells are a delicately controlled mixture of a polymer donor and a fullerene acceptor. The cell is created by adding a solvent to the ...
LAST 30 PRESS RELEASES:
[Press-News.org] A new species of nocturnal gecko from northern Madagascar