Navigation Links
High-speed video and artificial flowers shed light on mysteries of hummingbird-pollinated flowers
Date:11/20/2012

re intriguing, says Dr Sapir: "Because flowers need pollinators to reproduce, flowers have evolved to attract pollinators. Almost all hummingbird-pollinated flowers hang down vertically, so our hypothesis was that they evolved this way because hummingbirds would have to use less energy to feed from them. We found the opposite that it's more costly in energy terms for hummingbirds to feed from these flowers."

In evolutionary terms, this means other factors must be at play. "Our findings suggest other factors may be dictating flower orientation. Flowers may need to exclude less efficient pollinators, such as insects, and so flowers that hang down vertically may be selected during evolution to increase pollination efficiency. And horizontal flowers are more exposed to rain, which can dilute the amount of nectar in a flower, and we know that hummingbirds can tell how sweet nectar is, so they may select downward-facing flowers because their nectar is less diluted by rain and thus contains the most sugar."


'/>"/>

Contact: Becky Allen
beckyallen@ntlworld.com
44-012-235-70016
Wiley
Source:Eurekalert

Page: 1 2

Related biology news :

1. BGI and Aspera collaborate on high-speed data exchange to advance genome research
2. Video-article shows how to purify magnetic bacteria
3. Can videogaming benefit young people with autism spectrum disorder?
4. Video-gaming fish play out the advantages of groups
5. Chemistry on Mars video with Curiosity Rover from the American Chemical Society
6. New video series highlights the people who fuel Americas innovation pipeline
7. First ever videos of snow leopard mother and cubs in dens recorded in Mongolia
8. Pre-surgical steps for eye surgery are standardized through JoVEs video publication
9. Camera trap video offers rare glimpse of worlds rarest gorilla
10. Spanish researcher releases a video showing a beetle from the inside
11. Nature: Video reveals wave character of particles
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... in German . ... they also provide us with a continuous stream of information ... or sit still in a car the world glides ... retinas. Seemingly without effort, our brain calculates self-motion from this ... and a steady gaze during our own movements. Together with ...
(Date:4/17/2014)... in bone marrow need to produce hydrogen sulfide in ... to a new study from the Center for Craniofacial ... of USC. , Professor Songtao Shi, principal investigator on ... by the cells governs the flow of calcium ions. ... that results in osteogenesis, or the creation of new ...
(Date:4/17/2014)... Rajendra Singh Thursday as a "Champion of Change" ... deployment in the residential, commercial and industrial sectors. ... Electrical and Computer Engineering and director of Clemson,s ... hero leading the charge across the country to ... and driving policy changes at the local level ...
Breaking Biology News(10 mins):How vision makes sure that little fish do not get carried away 2How vision makes sure that little fish do not get carried away 3How vision makes sure that little fish do not get carried away 4White House honors Clemson professor as 'Champion of Change' for solar deployment 2
... Oak Ridge National Laboratory have received seven R&D 100 Awards ... to as the "Academy Awards of Science," honor the 100 ... chosen by an expert panel of independent judges and the ... year,s R&D 100 award winners," Energy Secretary Steven Chu said. ...
... to increased awareness generated by the expanding local ... throughout the United States. The fresh market strawberry ... Floridastates with ideal weather conditions and long growing ... production operations succeed in other areas of the ...
... (CHICAGO) A neurological scientist at Rush University Medical ... of Health (NIH) to evaluate whether cinnamon, a common ... process of multiple sclerosis (MS). The two-year, $750,000 ... effects of cinnamon on the disease process in mice. ...
Cached Biology News:ORNL researchers win 7 R&D 100 awards 2ORNL researchers win 7 R&D 100 awards 3ORNL researchers win 7 R&D 100 awards 4ORNL researchers win 7 R&D 100 awards 5Early-season strawberry tested in high elevation conditions 2Potential impact of cinnamon on multiple sclerosis studied 2Potential impact of cinnamon on multiple sclerosis studied 3
(Date:1/15/2014)... TaiGen Biotechnology Company, Limited ("TaiGen") today announced that they ... Russian pharmaceutical company, to develop and commercialize nemonoxacin (Taigexyn ... , Turkey and other members ... antibiotic for the treatment of bacterial infections including those ...
(Date:1/14/2014)... As pet owners drew up their lists of New Year,s resolutions ... care of my furry companion." Nowadays there are pet salons, dog ... to take the little canine or feline darlings along wherever mommy ... some pricey toys at the pet store. But anyone who has ...
(Date:1/14/2014)... In recent years, growing suspicion about the pharmaceutical ... and promotion has led to unprecedented levels of public ... about the insidious impact of commercialization of research, has ... the world’s biggest pharmas for illegal marketing activities, allegations ...
(Date:1/14/2014)... 2014 Kerr Corporation, a leading manufacturer of ... how-to information about dual arch impressions on its dental blog. ... Impressions,” the blog entry serves up a list of tips ... step-by-step demonstration by Dr. David Little as he crafts a ...
Breaking Biology Technology:TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3
... ... recent debate among weed scientists about how -- or even whether -- invasive saltcedar should ... answer critical questions about our natural ecosystems and carefully weigh the impact of our decisions. ... Lawrence, KS (PRWEB) August ...
... HANOVER, NH Despite their popularity in the science fiction ... the mysterious regions in space once thought to be absent ... issue of Physical Review Letters , the flagship journal ... way of creating a reproduction black hole in the laboratory ...
... , NANJING, China, Aug. 21 ... ("Simcere" or the "Company"), a leading manufacturer and supplier,of ... forty-two of its generic drugs have been included in ... Ministry of Health ("MOH") on,August 18, 2009. , ...
Cached Biology Technology:Invasive Saltcedar Triggers Lively Debate among Weed Scientists and Land Managers 2Invasive Saltcedar Triggers Lively Debate among Weed Scientists and Land Managers 3Dartmouth researchers propose new way to reproduce a black hole 2Forty-two of Simcere's Generic Drugs Enter China's Essential Drug List 2
... is Tecans fully automated solution for ... fast automation for cell-line maintenance, expansion, ... modular system built upon standard, industry ... liquid handling configuration capable of both ...
High-throughput DNA preparation and end sequencing of BAC libraries. 3730xl DNA sequencers. LIMS tracking utilizing Geospiza's Finch system. Full-length BAC sequencing also available. Our expertise h...
... ) The antibody is preadsorbed to remove any ... buffered aqueous glycerol solution A solution ... 2+ and Ca 2+ ), pH 7.3 ... (IgG, protease free) and 0.05% sodium azide A ...
High-throughput DNA sequencing of any library. Just give us your transformation mixture, and we'll do the rest. ABI 3730xl's yield the longest read lengths available. LIMS tracking utilizing Geospiza...
Biology Products: