Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Complete ‘family tree’ of all British birds gives clues about which species might be endangered next

11.06.2008
A new complete evolutionary ‘family tree’ showing how all British bird species are related to each other may provide clues about which ones are at risk of population decline, according to new research published today (11 June) in Proceedings of the Royal Society B: Biological Sciences.

Comparing the new family tree with existing lists of endangered bird species, author Dr Gavin Thomas from the NERC Centre for Population Biology at Imperial College London found that British birds currently suffering population decline were clustered close together on the same branches of the family tree.

Because of this the family tree, or ‘phylogeny’, could be used to predict which species are at risk of decline in the future. Bird species which are not experiencing decline at the moment, but which sit close to species that are declining on the family tree, may be at risk next. This is because closely related species on the family tree share physical traits. Some of these traits such as low reproductive rates or specific habitat requirements may render them less able to cope with climate change or depletion of their habitat and make them exceptionally vulnerable to decline.

Declining population numbers is one of the main criteria used by scientists to assess which species are of high conservation concern. Another important way of measuring conservation concerns is assessing whether the geographical area inhabited by a species is decreasing – a condition known as ‘range contraction’. This study showed no link between closeness on the family tree and incidence of range contraction, so scientists will need to use additional information to create a full picture of which birds have conservation needs in the UK.

Dr Thomas explains, however, that the family tree could be used to provide vital clues to which species need to be protected from population decline:

“This study threw up some interesting results,” he said. “Numbers of the common blackbird are currently not perceived as threatened at all, however it has several close relatives, including the song thrush, that are experiencing severe levels of population decline. This could mean that populations of blackbirds in the UK are at risk of declining in the future.”

Dr Thomas suggests that the family tree can be an early warning for conservationists, because if species close to those on the phylogeny that are already endangered share traits with the endangered species, they too may be at risk of decline in the future.

Dr Thomas concludes: “Pulling together the family tree was an important task as we now have a clearer insight than ever before into the evolutionary relationships of birds in Britain. The data clearly shows a link between closely related birds and chances of population decline which could be useful for conservationists, although they will always need to take other factors, such as range contraction, into account.”

The family tree, or ‘phylogeny’, covers over 93% of British birds. Examples of birds which may be at risk of population decline in the future, based on their close relationship to other endangered birds include:

•The greenfinch – not currently endangered but closely related to the linnet and bullfinch which are currently experiencing severe levels of decline

•The ptarmigan – not currently endangered but closely related to the black grouse and grey partridge which are currently experiencing severe levels of decline

The research was funded by the Natural Environment Research Council.

Danielle Reeves | alfa
Further information:
http://www.nerc.ac.uk

More articles from Ecology, The Environment and Conservation:

nachricht Scientists produce a new roadmap for guiding development & conservation in the Amazon
09.12.2016 | Wildlife Conservation Society

nachricht Successful calculation of human and natural influence on cloud formation
04.11.2016 | Goethe-Universität Frankfurt am Main

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

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

Im Focus: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>