Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Scientists Shine Light on World’s Least-Studied Bat

30.10.2013
The Mortlock Islands flying fox, a large, breadfruit-eating bat native to a few remote and tiny Pacific islands, has long been regarded as one of the world’s least studied bats.

For more than 140 years nearly all that scientists knew about this animal was derived from one lonely specimen preserved in a jar of alcohol in the Natural History Museum, London.


Flying Fox

Today, in a paper in the open access journal ZooKeys, a team of bat biologists led by Don Buden of the College of Micronesia published a wealth of new information on this “forgotten” species, including the first detailed observations of wild populations.

And it is none too soon, says paper co-author Kristofer Helgen of the Smithsonian’s National Museum of Natural History, as the low-lying atolls this bat calls home are likely to be increasingly affected by rising ocean waters brought on by climate change.

“Very little is known about many of the mammals that live on remote Pacific islands, including this beautiful flying fox,” Helgen said. “This study gives us our first close look at a remarkable bat.”

The lone London specimen was collected in 1870 from the Mortlock Islands, a series of atolls that are part of the Federated States of Micronesia in the west-central Pacific Ocean. British biologist Oldfield Thomas used this specimen to name the species Pteropus phaeocephalus in 1882. But during a recent study of the bat, Buden discovered that a German naturalist voyaging on a Russian expedition had observed and named the animal some 50 years earlier.

“We found a report written by F.H. Kittlitz in 1836 describing his expedition to the Pacific Islands in the late 1820s. In that report he describes the flying-foxes of the Mortlocks and names them Pteropus pelagicus,” Buden said. “This means the species was named long before Thomas’s description in 1882.”

According to internationally established rules for naming animals, the earliest available scientific name of a species must be officially adopted. In the ZooKeys paper the scientists comply with this rule by renaming the Mortlock Islands flying fox Pteropus pelagicus. Not only does Kittlitz correctly deserve credit for the discovery of the species 50 years earlier than previously thought, but he can now also be credited for its “new” original name.

During their research—which involved careful study of the skulls and skins of related flying fox species in 8 different museums on 3 different continents—the researchers straightened out a second point of confusion in the scientific literature regarding these animals. They demonstrated that flying foxes from the nearby islands of Chuuk Lagoon, long regarded as the separate species Pteropus insularis, are best regarded as a subspecies of Pteropus pelagicus. This finding shows that the Mortlock flying fox has a wider geographic distribution than previously realized.

New fieldwork on the Mortlock Islands revealed more than name changes. The article describes the first study of the behavior, diet and conservation status of this flying fox, finding that the Mortlock Islands support a small population of 900 to 1,200 bats scattered across a land surface of only 4.6 square miles. Legal rules have brought better protection to the species, which was once heavily hunted and exported for food.

But the future of the species remains uncertain, Helgen points out. In their study of Mortlock Islands geography, the researchers learned none of the islands are more than a few meters high. Rising sea levels, generated by climate change, pose a serious threat to the flying foxes’ habitat and its food resources through flooding, erosion and contamination of freshwater supplies.

“When we think of climate change having an impact on a mammal species, what comes to mind most immediately is an Arctic animal like the polar bear, which depends on sea ice to survive,” Helgen said. “But this flying fox may be the best example of a mammal species likely to be negatively impacted by warming global climates. Here is a tropical mammal that has survived and evolved for hundreds of millennia on little atolls near the equator. How much longer will it survive as sea levels continue to rise?”

Kelly Carnes | EurekAlert!
Further information:
http://www.si.edu

More articles from Life Sciences:

nachricht Repairing damaged hearts with self-healing heart cells
22.08.2017 | National University Health System

nachricht Biochemical 'fingerprints' reveal diabetes progression
22.08.2017 | Umea University

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

Cholesterol-lowering drugs may fight infectious disease

22.08.2017 | Health and Medicine

Meter-sized single-crystal graphene growth becomes possible

22.08.2017 | Materials Sciences

Repairing damaged hearts with self-healing heart cells

22.08.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>