Navigation Links
Shootingstars provide clues to likely response of plants to global warming
Date:4/11/2011

Many scientists are concerned that plant and animal species may face extinction due to global warming, but biologists at Washington University in St. Louis are trying to predict exactly what will happen to them. Which species will migrate? Which evolve? Which change their behavior? Which become extinct?

Rather than peer into the future, they are looking backward, exploring how species alive today survived global warming at the end of the Pleistocene and asking whether their responses provide any guidance for us today.

For his dissertation Brad Oberle, a doctoral candidate in biology in Arts & Sciences at Washington University in St. Louis, delved into the post-Pleistocene history of three species of shootingstars (Dodecatheon).

Dodecatheon is a genus of flowering plant in the Primrose family, the petals of whose nodding flowers flex upward, giving the flowers the appearance of a star falling to earth, trailing flames behind it.

Two of the species, the jeweled shootingstar (D. amethystinum), and French's shootingstar (D. frenchii), are rare and grow only in cliff habitats.

Are the rare species glacial relicts, species adapted to the cool wet conditions during the Pleistocene that gradually retreated to smaller and smaller refuges as the climate warmed? Or were they ecotypes, local variants of a widespread species, Mead's shootingstar (D. meadia), that had adapted to cliff microclimates but were genetically similar to Mead's shootingstar.

"As is typical of science," says Barbara A. Schaal, PhD, the Mary-Dell Chilton Distinguished Professor of biology in Arts & Sciences, Oberle's dissertation advisor, and his co-author, "the result was mixed. One species is probably a relict species, and the other is probably an ecotype. Some species responded to warming by migrating but other populations apparently adapted in place."

The article was published in the April 5th issue of the Proce
'/>"/>

Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2 3 4 5 6

Related biology news :

1. New information provides sustainable options for greenhouse operations
2. New studies provide beneficial insights expanding the pool of liver grafts and transplants
3. Interventional radiologists provide hope in delaying growth, spread of breast cancer
4. SDSCs CIPRES Gateway provides window to the past -- and fast
5. New book on animal behavior provides integrated view
6. New imaging technique provides rapid, high-definition chemistry
7. Study provides new tool to monitor coral reef vital signs
8. Zoo researchers provide African sanctuaries road map
9. New high-resolution carbon mapping techniques provide more accurate results
10. Study provides explanation for connection between low birth weight and obesity later in life
11. University of Missouri researcher study provides insight into how corn makes hormones
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Shootingstars provide clues to likely response of plants to global warming 
(Date:7/24/2014)... sticky research out of York University shows a surprisingly ... toxic grass fungus: moose saliva (yes moose saliva). ... "Ungulate saliva inhibits a grassendophyte mutualism" shows that moose ... (which hosts a fungus called epichlo festucae that produces ... less toxicity. , "Plants have evolved defense mechanisms to ...
(Date:7/24/2014)... researchers has developed a new nanoscale agent for imaging ... assessing the function and properties of the GI tract ... treatment of gut diseases. , Illnesses such ... inflammatory bowel disease all occur in the intestine and ... diseases such as diabetes and Parkinson,s. , Until ...
(Date:7/24/2014)... at The University of Texas Health Science Center at ... to help Harris County residents whose vision problems cannot ... with corrective lenses, many people with low vision can ... of low vision devices, such as telescopes, magnifiers and ... Iyer is using the three-year, $164,645 SightFirst grant from ...
Breaking Biology News(10 mins):Moose drool inhibits growth of toxic fungus: York U research 2New imaging agent provides better picture of the gut 2UTHealth Dr. Bhavani Iyer awarded low vision grant 2
... who are exposed to manganese from welding fumes, risk developing ... exposure has ceased. This is the finding of a study ... It is estimated that 35,000 people in Sweden work ... one of several workplace activities. Previous research has shown that ...
... new strategies are needed to find and treat individuals ... disease. The prevalence of asymptomatic or minimally symptomatic malaria ... with malaria and these asymptomatic individuals can serve as ... disease transmission has declined. In a new ...
... The National Foundation for Cancer Research announced today that ... awarded the 7th annual Szent-Gyrgyi Prize for Progress in ... the successful development of a new therapeutic approach to ... traditional Chinese medicine with Western medicine, Drs. Wang and ...
Cached Biology News:Increased clumsiness in former welders 2'Test and Treat' model offers new strategy for eliminating malaria 2Chinese scientists Zhen-Yi Wang and Zhu Chen awarded 7th annual Szent-Gyorgyi Prize 2
(Date:7/25/2014)...  Galmed Pharmaceuticals Ltd. (Nasdaq: GLMD ) ... and commercialization of a once-daily, oral therapy for the ... financial results for the period ended June 30, 2014. ... Reported cash and cash equivalents totaling $37.4 million on ... 2013.  , Reported a net loss of $3.9 ...
(Date:7/24/2014)... 24, 2014 -- Keryx Biopharmaceuticals, Inc. (Nasdaq:KERX) (the "Company") ... active control Phase 3 study of Zerenex (ferric citrate), ... the treatment of hyperphosphatemia in patients with end-stage renal ... and iRon delivery with FErric CiTrate in EsrD) was ... American Society of Nephrology ( JASN ). ...
(Date:7/24/2014)... Calif. , July 24, 2014  Asterias ... in the emerging field of regenerative medicine, announced ... of a presentation to investors on Tuesday, July ... PDT.  The presentation will include an overview of ... access the webcast, visit http://www.ustream.tv/channel/asterias-biotherapeutics at ...
(Date:7/24/2014)... Yet, scientists are making progress in devising suitable ... approach relies on quantum dotsa kind of artificial ... A new study demonstrates that changing the coupling ... electrical impulses can help better control them. This ... as quantum information units, which would produce faster ...
Breaking Biology Technology:Galmed Pharmaceuticals Reports First Half 2014 Financial Results 2Galmed Pharmaceuticals Reports First Half 2014 Financial Results 3Galmed Pharmaceuticals Reports First Half 2014 Financial Results 4Galmed Pharmaceuticals Reports First Half 2014 Financial Results 5Galmed Pharmaceuticals Reports First Half 2014 Financial Results 6Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 2Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 3Zerenex (ferric citrate) long-term Phase 3 study results published in JASN 4Asterias Biotherapeutics Announces Live Investor Webcast 2Asterias Biotherapeutics Announces Live Investor Webcast 3Asterias Biotherapeutics Announces Live Investor Webcast 4
... Cycle built a significant presence in the bicycle industry ... on the market. But the Madison, Wis.-based company has ... of radio frequency identification (RFID) technology into its systems. ... Schwinn, Murray and Roadmaster along with newer names such ...
... women entrepreneurs? , ,The market is good for their ... and the revenue from them has increased faster than the ... less likely to fail, too, experts say. , ,Finding money ... , ,The problem is not limited to Wisconsin, but is ...
... Neurognostics, Inc ., a Wisconsin company specializing ... announced today that the Food and Drug Administration (FDA) ... its trademarked MindState fDAD. MindState fDAD had previously ... acquisition device. The Special 510(k) allows Neurognostics to enhance ...
Cached Biology Technology:Pacific Cycle rides full speed into RFID 2Pacific Cycle rides full speed into RFID 3Women and Capital: Two words that dont always marry 2Women and Capital: Two words that dont always marry 3Women and Capital: Two words that dont always marry 4
This is a PYREX replacement Allihn condenser with a 34/45 inner joint on the bottom for the No. CLS3840-S 125mL extractor system. The tubulation O.D. on the condenser is 10mm....
... unique human proteins on a 1x3 ... a cross section of all cellular ... high-quality results. Additional control proteins and ... validity and reproducibility., ,UNIchip protein microarrays ...
... unique human proteins on a 1x3 ... all intracellular proteins (IP) according to ... quadruplicate for high-quality results. Additional control ... guarantee high validity and reproducibility., UNIchip ...
...
Biology Products: