Although this bat is similar to the species Hipposideros armiger, differences in acoustics, size, and DNA between these bats led to the identification of the new species. This new member of the bat community, which has been found in two locations in Vietnam, has been given the scientific name Hipposideros griffini.
The current article of the Journal of Mammalogy reports on findings from a survey of bats in Vietnam over a span of three years. Eleven of 308 bats of the Hipposideros genus that were captured and handled for study displayed differing characteristics from all known taxa of Hipposideros and represent a new species.
Captured bats were measured for features such as forearm length, ear height, nose-leaf width, tooth row length, and body mass. Tissue samples were taken for genetic analysis. Recordings were made inside a flight tent, in front of caves, and under forest canopies, identifying calls of bats when they left their roosts and when they were foraging. Researchers used software for bat call analysis that can display color sonograms and measure frequencies.
The H. griffini bat has a smaller overall body size than its close cousin, H. armiger, and variations in the skull and teeth. Differences also appeared in the mitochondrial DNA collected from these bats. The echolocation frequencies of the new species range from 76.6 to 79.2 kHz, which is higher than frequencies of several H. armiger subspecies, which range from 64.7 to 71.4 kHz. Additional evidence shows that these two species are occupying the same geographical region yet have retained their separate identities.
H. griffini is named after the late Professor Donald Redfield Griffin of Rockefeller University in New York. Griffin was a leader in and essential contributor to bat echolocation research, which was key to identifying H. griffini as a new species. The proposed common name for this bat is “Griffin’s leaf-nosed bat.”
The new species was found at Cat Ba Island in Ha Long Bay in northern Vietnam and in Chu Mom Ray National Park, situated on the mainland more than 600 miles (1,000 km) to the south. H. griffini joins about 70 other species within the genus Hipposideros.
Full text of “A new species of Hipposideros (Chiroptera: Hipposideridae) from Vietnam,” Journal of Mammalogy, Vol. 93, No. 1, February 2012, is available at: http://www.asmjournals.org/
Taylor Fulton | Newswise Science News
Copper hydroxide nanoparticles provide protection against toxic oxygen radicals in cigarette smoke
29.05.2017 | Johannes Gutenberg-Universität Mainz
Water forms 'spine of hydration' around DNA, group finds
26.05.2017 | Cornell University
The world's highest gain high power laser amplifier - by many orders of magnitude - has been developed in research led at the University of Strathclyde.
The researchers demonstrated the feasibility of using plasma to amplify short laser pulses of picojoule-level energy up to 100 millijoules, which is a 'gain'...
Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....
Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....
An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
24.05.2017 | Event News
23.05.2017 | Event News
22.05.2017 | Event News
29.05.2017 | Physics and Astronomy
29.05.2017 | Physics and Astronomy
29.05.2017 | Earth Sciences