Navigation Links
An early spring drives butterfly population declines
Date:3/15/2012

Stanford Univ (USA), March 15, 2012 Early snow melt in the Colorado Rocky Mountains initiates two chains of events resulting in population decline in the mormon fritillary butterfly, Speyeria mormonia. One effect of snow melt date was readily detectable, but the second, cryptic effect required an understanding of the butterfly's biology. "This suggests that predicting effects of climate change on organisms' population sizes will be difficult in some cases due to lack of knowledge of the species' biology," noted Dr. Carol Boggs, professor in the department of biology at Stanford University and lead author on the study.

The study results are published early online in the journal Ecology Letters.

An initial understanding of the butterfly's life cycle and the factors determining egg production aided the research. Butterflies lay eggs (and then die) in the first summer; the caterpillars over-winter without eating and develop into adults in the second summer. In the laboratory, the amount of nectar a female ate determined the number of eggs she laid. This suggested that flower availability might be important to changes in population size.

Using long-term data on date of snow melt, butterfly population sizes, and flower numbers at the Rocky Mountain Biological Laboratory (RMBL) - located at 9,500 feet in the Colorado Rocky Mountains - researchers uncovered multiple effects of a single weather event, the date of snow melt, on change in population size of Speyeria mormonia butterflies. Early snow melt in the first year leads to lower availability of the butterfly's preferred flower species, due to exposure of newly developing plants to early-season frosts that kill flower buds. The researchers showed that reduced flower (nectar) availability per butterfly adversely affected butterfly population growth rate. Early snow melt in the second year of the butterfly life cycle worsened this impact, probably through direct
'/>"/>

Contact: Justin Jackson
jjackson@burnsmc.com
212-213-0006
Burns McClellan
Source:Eurekalert

Page: 1 2

Related biology news :

1. Mid-Atlantic suburbs can expect an early spring thanks to the heat of the big city
2. Artificial womb unlocks secrets of early embryo development
3. Scripps Florida team awarded nearly $1.5 million to develop potent new HIV inhibitors
4. Promising early results with therapeutic cancer vaccines
5. Metabolic breathalyzer reveals early signs of disease
6. Same genes linked to early- and late-onset Alzheimers
7. EMBL Monterotondo researcher wins award for early career scientists
8. New test spots early signs of inherited metabolic disorders
9. Early land plants: Early adopters!
10. A new way of approaching the early detection of Alzheimers disease
11. CSF test can pick up Alzheimers early
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/11/2014)... , Dec. 10, 2014  That blood pressure plays ... a while. Hypertension – the medical term for high blood ... early 1800s, and the inflatable cuff that,s used in measuring ... however, mean there,s nothing new about hypertension, its triggers and ... beliefs about the condition and the best ways to treat ...
(Date:12/10/2014)... 2014 CIE San Diego has launched an ... connective tissue that enhances care coordination among social service ... client-level information; earned a second $1 million grant from ... seniors aging in community and; will be recognized as ... th 4-6p. CIE San Diego today ...
(Date:12/4/2014)... BEACH GARDENS, Fla. , Dec. 3, 2014 ... management solutions, today announced that its DigitalPersona ® ... 4500 fingerprint readers have been deployed throughout First ... , South Carolina ... headquartered in Southern Pines, North Carolina ...
Breaking Biology News(10 mins):Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 2Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 3Community Information Exchange San Diego Launches Pilot, Secures $1 Million Expansion Grant, and Becomes a "Live Well San Diego" Partner 4First Bank Partners with Crossmatch to Increase Log In Security 2First Bank Partners with Crossmatch to Increase Log In Security 3
... been shed on proteorhodopsin, the light-sensitive protein found in ... of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and ... when the ability to respire oxygen is impaired, bacterium ... carry out vital life processes. , ...
... an increased risk of fetal heart problems when mothers ... an abstract presented by Yale School of Medicine researchers ... in San Francisco. , Congenital heart block (CHB) ... heart's electrical signaling from the upper to the lower ...
... system to produce antibodies that act against some essential ... can act against sperm, eggs or reproductive hormones, which ... ova. , Proponents of the technique, which ... as more humane than the conventional methods of controlling ...
Cached Biology News:Shedding new light on proteorhodopsin 2Shedding new light on proteorhodopsin 3Manipulating nature: Scientists query wildlife birth-control method 2
(Date:12/19/2014)... CITY, Calif. , Dec. 19, 2014 Bina ... , USA) announced today that they have been acquired ... 1,2 is a privately held company that provides ... of next generation sequencing (NGS) data for the academic ... the Roche Sequencing Unit, and will continue to focus ...
(Date:12/19/2014)... 2014 Today, TiFiber, Inc. ... production facility and future company headquarters in Fort ... new materials that safely and effectively control dangerous ... of its historic, strong support for manufacturing, but ... leading edge, technology-based companies such as TiFiber. ...
(Date:12/19/2014)... Boston, MA (PRWEB) December 18, 2014 ... software, announced the appointment of Siri Bryant as the ... the new Director of Core Implementations. These two new ... provide outstanding customer service by ensuring that iLab continues ... , “In the last four years, iLab has been ...
(Date:12/19/2014)... 18, 2014  Decision Resources Group finds that the ... will grow moderately through 2023 as the aging population, ... of dental biomaterials all spur procedure volumes. Growth will ... China and India ... within reach for a larger proportion of the population. ...
Breaking Biology Technology:Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 2Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 4iLab Solutions Announces Two New Leadership Positions to Meet the Needs of Its Growing Customer Base 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 3
... Herremans Joins SPO Medical to Endorse New... -- NEW YORK, October 5, 2010 ... ... --> ... s = ,; var first_result; // Results are keyed by longUrl, so we need to grab the ...
... Ore. Nanotechnology is about to emerge in the world ... approaches are needed to understand the implications for public health, ... and prevent possible risks, researchers say in a new report. ... Journal of Occupational and Environmental Health , scientists from Oregon ...
... Reportlinker.com announces that a new market research report ... Global Soft Tissue Allografts Industry ... the worldwide markets for Soft Tissue Allografts in ... Meniscus Allografts, and Tendon Allografts. The report provides ...
Cached Biology Technology:Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 2Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 3Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 4Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 5Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 6Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 7Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 8Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 9Philadelphia Eagles' Offensive Lineman Todd Herremans Joins SPO Medical to Endorse New SPO Wellness(TM) Product Line 10New approaches needed to gauge safety of nanotech-based pesticides 2New approaches needed to gauge safety of nanotech-based pesticides 3Reportlinker Adds Global Soft Tissue Allografts Industry 2Reportlinker Adds Global Soft Tissue Allografts Industry 3Reportlinker Adds Global Soft Tissue Allografts Industry 4Reportlinker Adds Global Soft Tissue Allografts Industry 5Reportlinker Adds Global Soft Tissue Allografts Industry 6Reportlinker Adds Global Soft Tissue Allografts Industry 7Reportlinker Adds Global Soft Tissue Allografts Industry 8Reportlinker Adds Global Soft Tissue Allografts Industry 9Reportlinker Adds Global Soft Tissue Allografts Industry 10Reportlinker Adds Global Soft Tissue Allografts Industry 11
Request Info...
MAb to Mouse MHC Class I H-2Kd...
Rabbit polyclonal antibody to Neuromedin U Receptor 1 (GPR66)...
... demand is causing shortages in your laboratory ... can cause unwanted distractions, problems and delays. ... for your hard work and endeavour! Bring ... it up,and market it internationally. We work ...
Biology Products: