Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Sensational bird finding in China

19.12.2011
In June 2011, a team of Chinese and Swedish researchers rediscovered the breeding area for the poorly known Blackthroat Luscinia obscura, in the Qinling mountains, Shaanxi province, north central China.

Seven singing males were observed in Foping and seven more in Changqing National Nature Reserves – which almost equals the total number of individuals observed of this species since its discovery in the late 19th century. Nearly all of the birds were on mountain slopes at 2400–2500 meters above sea level in large, dense expanses of bamboo in open coniferous and mixed coniferous-broadleaved forest.


Adult male Blackthroat Luscinia obscura, Foping National Nature Reserve, Shaanxi, China, June 2011. Photo: © Per Alström

In the late 19th and early 20th centuries, about 10 Blackthroats were collected at two localities in the Gansu and Shaanxi provinces during the breeding season (May–August). Since then, there have been only a handful of mostly unconfirmed records from Sichuan and Yunnan provinces, China, from presumed breeding areas or on migration, including a few individuals found in bird markets [1]. The most recent record is of a bird that was photographed on migration in the campus of the Sichuan University on 2 May 2011 [2]. In addition, one individual has been caught in Thailand in winter.

The Blackthroat resembles a European Robin Erithacus rubecula in size and
general appearance, but with a jet black throat and breast in the male. The female is considered to have a pale brownish throat and breast, although no females definitely attributable to this species have been observed.

The song is distinctive, and consists of rather short, quick, varied strophes that include both whistles and harsh notes. The strophes are delivered at a fairly slow, even pace. Several individuals were sound recorded in 2011, and two of these recordings are now made freely available. This will facilitate future surveys of this enigmatic bird species.

Contacts
Dr Per Alström, Swedish Species Information Centre, Swedish University of Agricultural Sciences, Uppsala, Sweden. Email: per.alstrom@slu.se Tel: +46 70 454 6965.

http://www.slu.se/sv/centrumbildningar-och-projekt/artdatabanken/kontakt1/personal-a-o/per-alstrom/per-alstroms-forskning/

Dr Gang Song, Institute of Zoology, Chinese Academy of Sciences, Beijing, China. Email: songgang@ioz.ac.cn Tel: +86 (0)10 64807188.

Mr Yong-wen Zhang, Changqing National Nature Reserve, Huayang, China. Email: redbirch25@163.com Tel: +86 159 918 365 96.

Link to song of male Blackthroat Luscinia obscura, Foping National Nature Reserve, Shaanxi, China, 8 June 2011. Per Alström:

http://www.slu.se/Global/externwebben/centrumbildningar-projekt/artdatabanken/Dokument/Personal/Per%20Alstr%c3%b6m/Blackthroat%20song%20Foping,%20Shaanxi,%208%20June%202011%20%c2%a9%20Per%20Alstrom.mp3

Link to song of male Blackthroat Luscinia obscura, Changqing National Nature Reserve, Shaanxi, China, 15 June 2011. Per Alström.

http://www.slu.se/Global/externwebben/centrumbildningar-projekt/artdatabanken/Dokument/Personal/Per%20Alstr%c3%b6m/Blackthroat%20song%20Changqing,%20Shaanxi,%2015%20June%202011%20%c2%a9%20Per%20Alstrom.mp3

Mikael Porpst | idw
Further information:
http://www.slu.se

More articles from Life Sciences:

nachricht Could this protein protect people against coronary artery disease?
17.11.2017 | University of North Carolina Health Care

nachricht Microbial resident enables beetles to feed on a leafy diet
17.11.2017 | Max-Planck-Institut für chemische Ökologie

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

Im Focus: Wrinkles give heat a jolt in pillared graphene

Rice University researchers test 3-D carbon nanostructures' thermal transport abilities

Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

NASA detects solar flare pulses at Sun and Earth

17.11.2017 | Physics and Astronomy

NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures

17.11.2017 | Health and Medicine

The importance of biodiversity in forests could increase due to climate change

17.11.2017 | Studies and Analyses

VideoLinks
B2B-VideoLinks
More VideoLinks >>>