Navigation Links
News tips from the May/June issue of Physiological and Biochemical Zoology
Date:5/2/2011

MAY/JUNE PBZ TIPSHEET

  • Giant Hummingbirds: Running a little hot, but not on empty
  • What keeps an asexual fish species from taking over?
  • Small sea birds: Holding heat, rather than cranking up the furnace

For the complete table of contents for the May/June issue, go to journals.uchicago.edu/pbz.


Giant Hummingbirds: Running a little hot, but not on empty

Scientists have long thought that the giant hummingbird (Patagona gigas) was just about as big as a hummingbird could get. They're nearly twice the size of the next largest species, and it was assumed that the energy needed for hovering flight would take the giants close to the upper metabolic limits for an animal that size. Not so, according to a study led by Mara Jos Fernndez of the University of California, Berkeley, and the Pontificia Universidad Catlica de Chile. Fernndez and her colleagues measured the amount of energy burned by giant hummingbirds when hovering and at rest. They also assessed the total amount of energy that the birds use in a day. The research found that giant hummingbirds do use more energy for their body size than smaller hummingbirds do, but they were still well below what is thought to be the upper metabolic limit. The finding suggests that metabolism is not necessarily the constraining factor in the evolution of hummingbird body size.

Mara Jos Fernndez, Robert Dudley, and Francisco Bozinovic, "Comparative Energetics of the Giant Hummingbird (Patagona gigas).


What keeps an asexual fish species from taking over?

When a red-bellied dace and a finescale dace (freshwater fish in the carp and minnow family) mate with each other, they produce a hybrid with a very special ability: it can reproduce asexually. This asexual hybrid should have a tremendous evolutionary advantage over its sexually repr
'/>"/>

Contact: Kevin Stacey
kstacey@press.uchicago.edu
773-834-0386
University of Chicago Press Journals
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. The Hastings Center Report table of contents for May/June 2010
2. Tissue spacers reduce risk of rectal injury for prostate cancer patients
3. Rice wins $1.2 million for heart-valve tissue research
4. Researchers inject nanofiber spheres carrying cells into wounds to grow tissue
5. Study shows how discrimination hurts: lack of fair treatment leads to obesity issues
6. Brachytherapy, the official journal of ABS, expands to 6 issues in 2011
7. Sleep issues contribute to cognitive problems in childhood cancer survivors
8. Insights gained from growing cold-causing virus on sinus tissue
9. Experts issue recommendations for evaluating and treating pituitary incidentalomas
10. Quality health care delivery key election issue, says CMAJ
11. Newsbriefs from the April issue of the journal Chest
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2015)... ... ... ZH Healthcare announces a new cloud based service delivering Health IT as ... Service (HITaaS) is a Healthcare dedicated cloud based service that sits over infrastructure as ... all aspects of infrastructure, security, runtime, middleware, OS, virtualization, Servers, storage, contracts, and ...
(Date:7/31/2015)... ... 31, 2015 , ... New Energy Works Timberframers invites the public to join ... 15th, 2015 from 9am – 12pm. Timber frame raisings are special, celebrating ... community as the culmination of months of effort, planning, fundraising, and dreaming takes shape. ...
(Date:7/31/2015)... ... , ... “ Crack’em ” was featured on NewsWatch as part of its ... Amanda Forstrom, a technology expert and special reporter for NewsWatch, conducted the review and ... Cooking can be a very messy experience, especially when cracking eggs. Cracking an egg ...
(Date:7/31/2015)... ... ... Seals Southern Georgia’s Heels & Wheels Duathlon & Triathlon will be held Saturday, August 22nd ... duathlon is a 2 mile run, 13 mile bike ride, and a 3 mile run. ... and a 3 mile run. Heels & Wheels is sponsored by Mayo Clinic System ...
(Date:7/31/2015)... ... July 31, 2015 , ... David Gilpin, ... website to inform potential Nashville area sinus sufferers about the benefits ... to determine if someone is a good candidate for Balloon Sinuplasty. The questionnaire ...
Breaking Medicine News(10 mins):Health News:ZH Healthcare Unveils Health IT as a Service (HITaaS) at OSEHRA 2015 2Health News:ZH Healthcare Unveils Health IT as a Service (HITaaS) at OSEHRA 2015 3Health News:ZH Healthcare Unveils Health IT as a Service (HITaaS) at OSEHRA 2015 4Health News:Timber Frame Raising: Granary District Stage Amphitheater Timber Frame Hand-Raising by New Energy Works Timberframers 2Health News:Timber Frame Raising: Granary District Stage Amphitheater Timber Frame Hand-Raising by New Energy Works Timberframers 3Health News:Make Less Mess while Cooking with Crack’em 2Health News:Heels & Wheels for Megan's House Set for Saturday August 22, 2015 in Waycross, Georgia 2Health News:Nashville Otolaryngologist Dr. David Gilpin Launches Balloon Sinuplasty Website 2Health News:Nashville Otolaryngologist Dr. David Gilpin Launches Balloon Sinuplasty Website 3
... of Pennsylvania School of Medicine and other study sites ... non-invasive technique that excites neurons in the brain via ... safe and effective, non-drug treatment with minimal side effects ... treatment options without benefit. , This study ...
... generates green pods while a variant of that gene ... helped Gregor Mendel, the 19th century Austrian priest and ... are focused on the strange ability of some genes ... ways. , In order to better understand this phenomenon ...
... researchers have identified structural damage to the lungs caused ... the study, conducted by researchers at the University of ... Hospital of Philadelphia in Pennsylvania, were presented today at ... America (RSNA). , Its long been hypothesized that prolonged ...
... of Australias leading medical,research institutes, unveiled a powerful ... cutting edge in medical technology and microscopy, the ... scientists at the Centenary Institute,unprecedented access to the ... and molecular,level., The Centenary Institute is equally excited ...
... CARLSBAD, Calif., Nov. 26 Visage Imaging, a,wholly ... MRCY ),announced an agreement with Siemens Medical ... solutions to hospitals and imaging,centers worldwide., Siemens ... into its SIENET Magic product line. This unique ...
... Ohio, Nov. 26 Understand how improving ... That,s the message behind,the new book "REM ... by Timothy J. Walter, M.D., a sleep ... (Lotus Magnus, August,2007, ISBN-13: 978-1604022377, $19.95) integrates ...
Cached Medicine News:Health News:Penn research shows transcranial magnetic stimulation effective in treating major depression 2Health News:Flip-flopping gene expression can be advantageous 2Health News:Novel MRI technique shows secondhand smoke damages lungs 2Health News:World class technology and talent battle cancer at the Centenary Institute 2Health News:Visage Imaging Expands Availability of Its Advanced Visualization Offering 2Health News:Visage Imaging Expands Availability of Its Advanced Visualization Offering 3Health News:Understand How Sleep Impacts Learning and Memory 2
(Date:7/31/2015)... , July 31, 2015 Egalet ... integrated specialty pharmaceutical company focused on developing, manufacturing ... closing of its previously announced underwritten public offering ... a public offering price of $11.25 per share. ... included 1,000,000 shares issued upon the exercise in ...
(Date:7/31/2015)... 31, 2015 According to a ... Product (Bioimpedance Analyzers (BIA), Dual-Energy X-ray Absorptiometry (DEXA), Skinfold ... Global Analysis & Forecast to 2019", published by MarketsandMarkets, ... $911.1 Million 2014 and is estimated to grow to ... 9.4% from 2014 to 2019. Browse ...
(Date:7/30/2015)... DIEGO , July 30, 2015 /PRNewswire/ ... it has signed a definitive agreement to ... of non-invasive ventilation and sleep-disordered breathing medical ... clinical, innovation and market reputation in China, combined with ResMed,s global leadership in ... people in China ...
Breaking Medicine Technology:Egalet Announces Closing of Public Offering of Common Stock and Exercise in Full of Underwriters' Option to Purchase Additional Shares 2Egalet Announces Closing of Public Offering of Common Stock and Exercise in Full of Underwriters' Option to Purchase Additional Shares 3Egalet Announces Closing of Public Offering of Common Stock and Exercise in Full of Underwriters' Option to Purchase Additional Shares 4Body Composition Analyzers Market Worth $1,425.7 Million by 2019 2Body Composition Analyzers Market Worth $1,425.7 Million by 2019 3Body Composition Analyzers Market Worth $1,425.7 Million by 2019 4ResMed Invests in High-Growth Chinese Sleep and Respiratory Care Market with Curative Medical 2ResMed Invests in High-Growth Chinese Sleep and Respiratory Care Market with Curative Medical 3
... 2011 Reportlinker.com announces that a ... in its catalogue: ... Market 2011-2021 - what are the ... http://www.reportlinker.com/p0578544/Lyophilisation-for-Pharmaceuticals-Technology-and-Services-Market-2011-2021---what-are-the-revenue-prospects.html#utm_source=prnewswire&utm_medium=pr&utm_campaign=In_Vitro_Diagnostic What are ...
... Inc. (NASDAQ: CALP ) today reported its financial ... quarter revenue increased to $38.3 million, or 32%, from $29.1 ... excludes the effects of acquisitions, divestitures and currency changes, grew ... a year-to-date basis).  Caliper reported a second quarter net loss ...
Cached Medicine Technology:Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 2Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 3Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 4Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 5Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 6Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 7Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 8Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 9Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 10Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 11Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 12Lyophilisation for Pharmaceuticals: Technology and Services Market 2011-2021 - What are the Revenue Prospects? 13Caliper Life Sciences Reports Second Quarter 2011 Results 2Caliper Life Sciences Reports Second Quarter 2011 Results 3Caliper Life Sciences Reports Second Quarter 2011 Results 4Caliper Life Sciences Reports Second Quarter 2011 Results 5Caliper Life Sciences Reports Second Quarter 2011 Results 6Caliper Life Sciences Reports Second Quarter 2011 Results 7Caliper Life Sciences Reports Second Quarter 2011 Results 8Caliper Life Sciences Reports Second Quarter 2011 Results 9Caliper Life Sciences Reports Second Quarter 2011 Results 10
The Vivid e delivers everything you need in a compact echo system, like complete cardiovascular functionality, a comprehensive cardiac measurement and analysis package, and full shared service capabi...
BonePlast is a fast resorbing, osteoconductive bone void filler. By delivering a high dose of calcium to the operative site, BonePlast helps build new bone during the healing process. Packaged in a c...
... The patented telescoping plate ... an anterior plate and vertebral ... design eliminates the need for ... generous amount of bone graft ...
"Small" redefined for Holter recorders!...
Medicine Products: