Navigation Links
As climate warms, bark beetles march on high-elevation forests
Date:12/31/2012

MADISON Trees and the insects that eat them wage constant war. Insects burrow and munch; trees deploy lethal and disruptive defenses in the form of chemicals.

But in a warming world, where temperatures and seasonal change are in flux, the tide of battle may be shifting in some insects' favor, according to a new study.

In a report published today (Dec. 31, 2012) in the Proceedings of the National Academy of Sciences, a team of scientists from the University of Wisconsin-Madison reports a rising threat to the whitebark pine forests of the northern Rocky Mountains as native mountain pine beetles climb ever higher, attacking trees that have not evolved strong defenses to stop them.

The whitebark pine forests of the western United States and Canada are the forest ecosystems that occur at the highest elevation that sustains trees. It is critical habitat for iconic species such as the grizzly bear and plays an important role in governing the hydrology of the mountain west by shading snow and regulating the flow of meltwater.

"Warming temperatures have allowed tree-killing beetles to thrive in areas that were historically too cold for them most years," explains Ken Raffa, a UW-Madison professor of entomology and a senior author of the new report. "The tree species at these high elevations never evolved strong defenses."

A warming world has not only made it easier for the mountain pine beetle to invade new and defenseless ecosystems, but also to better withstand winter weather that is milder and erupt in large outbreaks capable of killing entire stands of trees, no matter their composition.

"A subject of much concern in the scientific community is the potential for cascading effects of whitebark pine loss on mountain ecosystems," says Phil Townsend, a UW-Madison professor of forest ecology and also a senior author of the study.

The mountain pine beetle's historic host is the lodgepole pine, a tree
'/>"/>

Contact: Phil Townsend
ptownsend@wisc.edu
608-262-1669
University of Wisconsin-Madison
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Pics, shoots and leaves: Ecologists turn digital cameras into climate change tools
2. Geo-engineering against climate change
3. University of Tennessee study predicts extreme climate in Eastern US
4. Boreal bird species of conservation concern affected by climate change
5. Missing polar weather systems could impact climate predictions
6. Climate warming unlikely to cause near-term extinction of Amazon trees, but threats remain
7. Warming climate unlikely to cause extinction of ancient Amazon trees, study finds
8. Mercyhurst University study probes impact of climate change on ectotherms
9. Climate - the hot topic in Doha
10. Researchers investigate impacts of climate change on rare tropical plants
11. Site-specific, long-term research expanding understanding of climate change
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... from Washington, Oregon, northern California, and Alaska totaled 515 ... of 2014, an increase of more than 10 percent ... Forest Service,s Pacific Northwest Research Station reported today. During ... 4 percent to 247 million board feet. , The ... than 5 percent to $390 million in the same ...
(Date:8/28/2014)... at Ludwig-Maximilians-Universitaet (LMU) in Munich have assigned a ... of predatory arthropods. These animals lived in shallow ... related forms found in Jurassic strata. , ... shallow marine habitat and were fossilized some 435 ... denizens of the Silurian seas although they ...
(Date:8/27/2014)... MADISON, Wis. The mechanical force that a single fungal ... seem vanishingly small, but it plays a heavy role in ... biology. In fact, it may not be too much of ... onto land without the ability to respond to the touch ... Jean-Michel An, a professor of agronomy at the University of ...
Breaking Biology News(10 mins):West coast log exports up, lumber exports down in second quarter of 2014 2Paleontology: Oldest representative of a weird arthropod group 2A touching story: The ancient conversation between plants, fungi and bacteria 2A touching story: The ancient conversation between plants, fungi and bacteria 3
... asked to help find out how a dog,s lifestyle affects ... its kind, aims to assess how factors such as diet ... illness. The initiative, led by the Royal (Dick) School ... of Edinburgh, aims to recruit thousands of Labrador Retriever puppies ...
... extinction of woolly mammoths and other large mammals more than ... to the same type of "trophic cascade" of ecosystem disruption ... decline of predators such as wolves, cougars, and sharks. ... by human disruption of ecosystems, a new study concludes, but ...
... up with right number of cells in all the right ... insight into how this process is co-ordinated in plants. An ... University in the USA, have linked the process of cell ... A protein called Short-root, already known to play a part ...
Cached Biology News:Pups sign up for bid to boost pet health 2'Trophic cascades' of disruption may include loss of woolly mammoth, saber-toothed cat 2'Trophic cascades' of disruption may include loss of woolly mammoth, saber-toothed cat 3'Trophic cascades' of disruption may include loss of woolly mammoth, saber-toothed cat 4Breakthrough in understanding cell development 2
(Date:8/29/2014)... August 29, 2014 The global ... billion in 2019. It is expected to grow ... 2019, and was valued at $1.8 billion in ... Transparency Market Research. , For more information regarding ... . , The research report, titled “Companion Diagnostics ...
(Date:8/29/2014)... 2014 /PRNewswire/ - iCo Therapeutics ("iCo" or "the ... results for the six months ended June 30, ... Canadian dollars and presented under International Financial Reporting ... , Announced top-line results related to ... for subjects enrolled in the Phase 2 iDEAL ...
(Date:8/29/2014)... Due to a misstatement posted by the Family Resource ... Center, LLC ( ASCTC ) was reported as an entity ... benefit ALS patients. Because of ASCTC's exclusive focus on ... therapeutic applications, FRC listed ASCTC as one of several alternatives ... not to support research that requires the death of human ...
(Date:8/28/2014)... August 28, 2014 SPIE Fellow Glenn ... and Optical Science and Director of the Center for ... Carolina at Charlotte, and co-founder and Chairman of the ... as the 2015 Vice President of SPIE, the international ... Philip Stahl announced recent election results at the Annual ...
Breaking Biology Technology:Companion Diagnostics Market to Hit $5.6 Billion in 2019: Transparency Market Research 2Companion Diagnostics Market to Hit $5.6 Billion in 2019: Transparency Market Research 3iCo Therapeutics Announces Second Quarter 2014 Financial Results 2iCo Therapeutics Announces Second Quarter 2014 Financial Results 3iCo Therapeutics Announces Second Quarter 2014 Financial Results 4The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 2The Adult Stem Cell Technology Center, LLC Declines ALS Ice Bucket Challenge Donors Wishing to Support Ethical Research for New Stem Cell Therapies 3Glenn Boreman, UNC Professor and Plasmonics Co-Founder, Elected to SPIE Presidential Chain 2
Whitewater, Wis . - Sharon Ethanol , a subsidiary of <a...
... the online social media era, there are many companies trying ... ranged from total site revamps to well thought-out, limited-term campaigns ... interesting to review some recent examples demonstrating these concepts and ... , ,With Michael Dell back at the helm, Dell ...
... note: John Wade, VP/CIO, Saint Luke's Health System of Kansas City, ... Conference May 9 and 10 in Madison. He recently spoke ... assessment of the state of health information technology. , , ... of electronic health records? , , John Wade ...
Cached Biology Technology:On the case: Web lessons for connecting with customers 2On the case: Web lessons for connecting with customers 3On the case: Web lessons for connecting with customers 4On the case: Web lessons for connecting with customers 5Visions: Wade offers straight talk on e-medical records 2Visions: Wade offers straight talk on e-medical records 3Visions: Wade offers straight talk on e-medical records 4Visions: Wade offers straight talk on e-medical records 5
... using a protein engineering approach that introduced amino ... wild-type DNase I. These changes markedly increase the ... is a versatile enzyme that has a 6-fold ... maintain at least 50% of peak activity in ...
Request Info...
Request Info...
... Ligase catalyzes the formation of a phosphodiester ... in nicked duplex DNA molecules or between ... complementary strand at 45 - 65?. Tfi ... much higher temperatures than conventional DNA ligases, ...
Biology Products: