Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Full-annual-cycle models track migratory bird populations throughout the year

05.03.2015

Ignoring the wintering ranges of migratory birds when studying their populations is like doing a puzzle with half of the pieces missing. In a new Review published this week in The Auk: Ornithological Advances, Jeffrey Hostetler and his colleagues show how statistical analysis can fill in those missing pieces.

Many birds spend only a few months of the year in their breeding range before leaving to spend the winter in another region or even on another continent, and models that only make use of data from one season may not paint a complete picture; climate change, in particular, is likely to affect breeding, migratory, and winter ranges in different ways.

For this reason, Jeffrey Hostetler, T. Scott Sillett, and Peter P. Marra of the Smithsonian Migratory Bird Center have written the first comprehensive review of the different types of full-annual-cycle modeling approaches available to ecologists, including suggestions for potential improvements and the best model types for different situations.

This Review highlights the importance of incorporating data from all parts of migratory birds' annual movements when developing demographic models to study changes in their populations.

"In discussions over the past several years, biologists repeatedly have expressed the need for full-annual-cycle models that would enable decisions about how best to target strategic conservation action," explains Hostetler.

"Writing this paper provided an opportunity for me to explore both models that I was very familiar with and those that I was less familiar with, as well as share my own thoughts on what full-annual-cycle modeling techniques are most useful for conservation and ecological research." He adds that much of the work in this area so far has been theoretical due to the lack of real-world data tracking bird populations as they move between different parts of their range.

"As scientists' ability to track migratory animals throughout the year continues to improve, we expect that these models will increasingly be applied."

"As our knowledge of interactions between different components of avian annual cycles rapidly grows, it is critical that we integrate this knowledge into how we model population dynamics," according to Ohio State University professor Chris Tonra, an expert on migratory birds' seasonal interactions who was not involved with the paper. "This Review marks a giant step forward applying the basic science of full annual cycle studies to understanding the nature of population limitation and regulation necessary for managing and conserving migratory birds."

"Full-annual-cycle population models for migratory birds" is an open-access article available at

http://www.aoucospubs.org/doi/full/10.1642/AUK-14-211.1.

About the journal:

The Auk: Ornithological Advances is a peer-reviewed, international journal of ornithology. The journal has been the official publication of the American Ornithologists' Union since 1884. In 2009, The Auk was honored as one of the 100 most influential journals of biology and medicine over the past 100 years, and currently holds the top impact factor among ornithological journals.

Media Contact

Jeffrey Hostetler
hostetlerj@si.edu

http://www.aoucospubs.org 

Jeffrey Hostetler | EurekAlert!

More articles from Life Sciences:

nachricht The birth of a new protein
20.10.2017 | University of Arizona

nachricht Building New Moss Factories
20.10.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Terahertz spectroscopy goes nano

20.10.2017 | Information Technology

Strange but true: Turning a material upside down can sometimes make it softer

20.10.2017 | Materials Sciences

NRL clarifies valley polarization for electronic and optoelectronic technologies

20.10.2017 | Interdisciplinary Research

VideoLinks
B2B-VideoLinks
More VideoLinks >>>