Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Researchers Show Animals Can Adapt to Increasingly Frequent Cold Snaps

13.04.2015

As fall and spring temperatures rise, animals will increasingly have to deal with rapid "snap freezes."

As worldwide temperatures rise and the earth sees extreme weather conditions in both summer and winter, a team of researchers with the University of Florida and Kansas State University have found that that there is potential for insects - and possibly other animals - to acclimate and rapidly evolve in the face of this current climate change.


UF/IFAS Tyler Jones

As fall and spring temperatures rise, animals will increasingly have to deal with rapid changes from warm conditions to dangerous cold snaps.

“Organisms can deal with these stressful transitions from warm to cold by either acclimating - think about dogs putting on their winter coats - or by populations genetically evolving to deal with new stresses, a phenomenon known as rapid climate adaptation,” said Alison Gerken, a post-doctoral associate with UF’s Department of Molecular Genetics and Microbiology and the lead author of a new study, published this month in the journal Proceedings of the National Academy of Sciences.

While much of the emphasis regarding climate change is on overall warming, increased frequency of extreme weather events is also a critical concern. As fall and spring temperatures rise, animals will increasingly have to deal with rapid changes from warm conditions to dangerously cold temperatures as weather fronts sweep through. These “snap freeze” events threaten a variety of plants from agricultural crops to landscaping that are damaged and animals like insects, frogs, and even sea turtles that can suffer from cold.

Using fruit flies, Gerken and her team have described the genetic architecture for both long-term acclimation, as would be needed to prepare for the transition from summer to winter, and short-term acclimation, which could occur over a single day with a snap freeze. They have shown that there is substantial genetic variation in nature for both long-term seasonal acclimation and short-term acclimation associated with rapid extreme weather events.

“The ability to respond to longer-term seasonal changes does not impede the ability to respond to rapid changes associated with short-term extreme cold events,” said Daniel Hahn, associate professor of insect physiology with UF’s Institute of Food and Agricultural Sciences’ Department of Entomology and Nematology. “We have identified a series of about 100 candidate genes that could explain the ability of animals to rapidly respond to fluctuating temperatures.”

“Identifying which of these candidate genes actually causes variation in responses to cold snaps will give us the potential to understand whether evolution to climate change can occur in both wild and domesticated animals, allowing us to better predict which species or breeds will be “winners” and “losers” and to better mitigate the effects of anthropogenic climate change on a wide range of organisms from beneficial pollinators to invasive pests,” said Theodore Morgan an associate professor of evolutionary genetics in the Division of Biology at Kansas State University and senior author of the study.

Gerken, Hahn, and Morgan say identifying the genes involved in acclimation to temperature and the genetic relationship between long-term and short-term acclimation provides us with new tools to predict the impacts of an increased frequency of extreme events as a by-product of anthropogenic climate change on animal and plant populations.

Other researchers include Olivia Eller of Kansas State University.

Their research can be found online at http://www.pnas.org/content/early/2015/03/23/1503456112.full.pdf

Source: Alison R. Gerken, 352-273-7494, agerken@ufl.edu
Daniel Hahn, 352-273-3968, dahahn@ufl.edu

 www.ufl.edu

Kim Moore Wilmoth | newswise

More articles from Agricultural and Forestry Science:

nachricht Plasma-zapping process could yield trans fat-free soybean oil product
02.12.2016 | Purdue University

nachricht New findings about the deformed wing virus, a major factor in honey bee colony mortality
11.11.2016 | Veterinärmedizinische Universität Wien

All articles from Agricultural and Forestry Science >>>

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 >>>