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 Rainbow colors reveal cell history: Uncovering β-cell heterogeneity
22.09.2017 | DFG-Forschungszentrum für Regenerative Therapien TU Dresden

nachricht The pyrenoid is a carbon-fixing liquid droplet
22.09.2017 | Max-Planck-Institut für Biochemie

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: The pyrenoid is a carbon-fixing liquid droplet

Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.

A warming planet

Im Focus: Highly precise wiring in the Cerebral Cortex

Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.

The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

Im Focus: Quantum Sensors Decipher Magnetic Ordering in a New Semiconducting Material

For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.

Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Rainbow colors reveal cell history: Uncovering β-cell heterogeneity

22.09.2017 | Life Sciences

Penn first in world to treat patient with new radiation technology

22.09.2017 | Medical Engineering

Calculating quietness

22.09.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>