Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

York U researchers use innovative bird ‘backpacks’ to put wood thrush migration on the map

24.07.2014

Migratory songbirds are disappearing, and though conservationists are examining several possible reasons such as climate change, loss of habitat, acid rain and light pollution, a key piece of the puzzle has remained missing: where do these birds go once they leave their breeding sites, and what threats may they be encountering along the way?

To answer this question, a team of researchers out of York University have created the first ever migratory connectivity map produced for a songbird, using tracking from both breeding and winter sites. They were able to trace the 4,000km route taken by wood thrushes from North America down to Central and South America using bird “backpacks”, tiny geolocators made up of a battery, clock, light sensor, and chip to record data.


Breeding-wintering connections for wood thrushes. Each star is a site where geolocators were deployed on wood thrushes, and the round circles are the birds’ sites in the opposite season. Each deployment location is colour coded. Inset photo shows a wood thrush with a geolocator.

“The most challenging thing about these tiny geolocators is that they do not transmit data,” says York U researcher Emily McKinnon. “This means that we put the backpack on the bird, it migrates thousands of kilometres south for the winter, migrates back in spring, and then we have to catch it again to get the data. The culmination of years of this type of tracking, and hours and hours of effort by graduate students, field techs, volunteers, collaborators, and of course our project leader, Dr. Bridget Stutchbury, is detailed migration data from more than 100 wood thrushes tracked from 7 breeding sites and 4 winter sites.”

The team discovered that wood thrushes from Canada don’t migrate to the same areas as their neighbours in Kentucky, Virginia, and the Carolinas, and in fact, have a longer migratory route than their southern counterparts.

“Overall we call this pattern ‘leap-frog’ because the birds breeding the farthest north actually migrate the farthest south, ‘leap-frogging’ over the southern breeding populations,” says McKinnon. “The connections also tended to be predicted by longitude, so that birds breeding further east (and north) spent the winter further east (and south). So if you are Canadian visiting the Mexican Maya Riviera on vacation and you see a few wood thrushes – odds are they are not ‘Canadian’ wood thrushes, but probably birds from the southern US.”

McKinnon says the map shows where each bird goes, and what route it takes to get there, revealing patterns of behavior that will help researchers pinpoint important areas for specific breeding populations. It also reveals that in spring almost 75 per cent of all wood thrushes cross the Gulf of Mexico from the tip of the Yucatan peninsula to land in a small area of Louisiana on the northern gulf coast. That means almost the entire global population of the bird uses that one small area of land near New Orleans every spring.

McKinnon says the map will be helpful to researchers because they will be able to identify and target specific areas for habitat protection. For example, knowing that Canadian wood thrushes overwinter in Nicaragua means that efforts can be made to promote focused conservation in this region, including shade coffee grown under a forest canopy.

“The truth is, they aren’t really Canadian wood thrushes after all,” says McKinnon. “They have dual citizenship!”

York University is helping to shape the global thinkers and thinking that will define tomorrow. York’s unwavering commitment to excellence reflects a rich diversity of perspectives and a strong sense of social responsibility that sets us apart. A York U degree empowers graduates to thrive in the world and achieve their life goals through a rigorous academic foundation balanced by real-world experiential education. As a globally recognized research centre, York is fully engaged in the critical discussions that lead to innovative solutions to the most pressing local and global social challenges. York’s 11 faculties and 28 research centres are thinking bigger, broader and more globally, partnering with 288 leading universities worldwide. York's community is strong − 55,000 students, 7,000 faculty and staff, and more than 250,000 alumni.

-30-

Media Contact: Robin Heron, Media Relations, York University, 416 736 2100 x22097/ rheron@yorku.ca

Robin Heron | Eurek Alert!
Further information:
http://news.yorku.ca/2014/07/23/york-u-researchers-use-innovative-bird-backpacks-to-put-wood-thrushes-migration-on-the-map/

Further reports about: backpacks breeding populations sense spring wood thrushes

More articles from Ecology, The Environment and Conservation:

nachricht Worldwide Success of Tyrolean Wastewater Treatment Technology
27.05.2016 | Universität Innsbruck

nachricht How nanoparticles flow through the environment
12.05.2016 | Schweizerischer Nationalfonds SNF

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: Worldwide Success of Tyrolean Wastewater Treatment Technology

A biological and energy-efficient process, developed and patented by the University of Innsbruck, converts nitrogen compounds in wastewater treatment facilities into harmless atmospheric nitrogen gas. This innovative technology is now being refined and marketed jointly with the United States’ DC Water and Sewer Authority (DC Water). The largest DEMON®-system in a wastewater treatment plant is currently being built in Washington, DC.

The DEMON®-system was developed and patented by the University of Innsbruck 11 years ago. Today this successful technology has been implemented in about 70...

Im Focus: Computational high-throughput screening finds hard magnets containing less rare earth elements

Permanent magnets are very important for technologies of the future like electromobility and renewable energy, and rare earth elements (REE) are necessary for their manufacture. The Fraunhofer Institute for Mechanics of Materials IWM in Freiburg, Germany, has now succeeded in identifying promising approaches and materials for new permanent magnets through use of an in-house simulation process based on high-throughput screening (HTS). The team was able to improve magnetic properties this way and at the same time replaced REE with elements that are less expensive and readily available. The results were published in the online technical journal “Scientific Reports”.

The starting point for IWM researchers Wolfgang Körner, Georg Krugel, and Christian Elsässer was a neodymium-iron-nitrogen compound based on a type of...

Im Focus: Atomic precision: technologies for the next-but-one generation of microchips

In the Beyond EUV project, the Fraunhofer Institutes for Laser Technology ILT in Aachen and for Applied Optics and Precision Engineering IOF in Jena are developing key technologies for the manufacture of a new generation of microchips using EUV radiation at a wavelength of 6.7 nm. The resulting structures are barely thicker than single atoms, and they make it possible to produce extremely integrated circuits for such items as wearables or mind-controlled prosthetic limbs.

In 1965 Gordon Moore formulated the law that came to be named after him, which states that the complexity of integrated circuits doubles every one to two...

Im Focus: Researchers demonstrate size quantization of Dirac fermions in graphene

Characterization of high-quality material reveals important details relevant to next generation nanoelectronic devices

Quantum mechanics is the field of physics governing the behavior of things on atomic scales, where things work very differently from our everyday world.

Im Focus: Graphene: A quantum of current

When current comes in discrete packages: Viennese scientists unravel the quantum properties of the carbon material graphene

In 2010 the Nobel Prize in physics was awarded for the discovery of the exceptional material graphene, which consists of a single layer of carbon atoms...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Networking 4.0: International Laser Technology Congress AKL’16 Shows New Ways of Cooperations

24.05.2016 | Event News

Challenges of rural labor markets

20.05.2016 | Event News

International expert meeting “Health Business Connect” in France

19.05.2016 | Event News

 
Latest News

11 million Euros for research into magnetic field sensors for medical diagnostics

27.05.2016 | Awards Funding

Fungi – a promising source of chemical diversity

27.05.2016 | Life Sciences

New Model of T Cell Activation

27.05.2016 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>