Navigation Links
Mercyhurst University study probes impact of climate change on ectotherms
Date:12/12/2012

A new study by biologists at Mercyhurst University focuses on the influence of climate change, particularly warmer winters, on the survival and potential fecundity of cold-blooded animals.

Cold blooded animals, or ectotherms, do not have an internal mechanism for regulating body temperature. Instead, they rely on solar energy captured by the environment.

The purpose of the Mercyhurst study, a collaboration of Michael Elnitsky, Ph.D., assistant professor of biology; and students Drew Spacht and Seth Pezar, is to assess the current and future impacts of climate change on the overwintering energetics and microenvironmental conditions of the goldenrod gall fly (Eurosta solidaginis). Larvae of the goldenrod gall fly have long served as model organisms for studying the strategies used by freeze-tolerant animals for winter survival.

"We used historical temperature data to estimate the overwintering (November through March) energy use of larval gall flies," Elnitsky said. "Based upon the relationship between metabolic rate and temperature, the estimated energy utilization during winter has increased by more than 30 percent over the last 50 years."

Further, with continued climate change, each additional 1 degree C rise in temperature during winter is projected to increase energy use by 12 percent. The consequence of this is that the amount of energy remaining at winter's end directly determines how many offspring the goldenrod gall fly can produce.

"Unlike some other insects that are benefitting from a changing climate, goldenrod gall fly populations would be predicted to decline," Elnitsky said.

The research team has begun similar assessments of the impacts of a changing winter climate for other arthropods, such as deer ticks (Ixodes scapularis) that transmit Lyme disease bacteria and the hemlock woolly adelgid (Adelges tsugae), an invasive insect destroying hemlock forests throughout the eastern U.S.

The Mercyhurst group presented their research at the annual meeting of the Entomological Society of America (ESA) in Knoxville, Tenn., last month. Spacht of Erie and Pezar of Madison, Ohio, were awarded the President's Prize in the Physiology, Biochemistry and Toxicology section for their poster presentation. The President's Prize is the award given to the top undergraduate presentation in each section at the conference, which was attended by more than 4,000 scholars.


'/>"/>

Contact: Debbie Morton
dmorton@mercyhurst.edu
814-824-2552
Mercyhurst College
Source:Eurekalert

Related biology news :

1. Grant furthers Mercyhurst research for human pathogens in Great Lakes
2. University of Houston study shows BP oil spill hurt marshes, but recovery possible
3. University of Alberta led research may have discovered how memories are encoded in our brains
4. BGI, University of Helsinki and Wuhan University sign a MOU concerning cooperation on genomics
5. Marshall University study may lead to new treatments for prostate cancer
6. University leads £6 million EU project to tackle obesity
7. A University of Tennessee professors hypothesis may be game changer for evolutionary theory
8. Life expectancy may affect when you get married, divorced, have kids: Queens University study
9. University of Toronto biologists predict extinction for organisms with poor quality genes
10. University of Minnesota invention helps advance reliability of alternative energy
11. Israel names Tel Aviv Universitys Renewable Energy Center a Center of Research Excellence
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/28/2017)... , March 28, 2017 The ... Hardware (Camera, Monitors, Servers, Storage Devices), Software (Video Analytics, ... Region - Global Forecast to 2022", published by MarketsandMarkets, ... 2016 and is projected to reach USD 75.64 Billion ... and 2022. The base year considered for the study ...
(Date:3/24/2017)... 24, 2017 The Controller General of Immigration from ... Abdulla Algeen have received the prestigious international IAIR Award for the ... Continue Reading ... ... Controller Abdulla Algeen (small picture on the right) have received the IAIR ...
(Date:3/23/2017)... The report "Gesture Recognition and Touchless Sensing Market by Technology (Touch-based ... to 2022", published by MarketsandMarkets, the market is expected to be worth USD ... 2022. Continue Reading ... ... ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... and LAGUNA HILLS, Calif. , Oct. ... Cancer Research, London (ICR) and University ... SKY92, SkylineDx,s prognostic tool to risk-stratify patients with multiple myeloma ... MUK nine . The University of Leeds ... partly funded by Myeloma UK, and ICR will perform the ...
(Date:10/10/2017)... ... 2017 , ... San Diego-based team building and cooking events company, Lajollacooks4u, has ... The bold new look is part of a transformation to increase awareness, appeal to ... period. , It will also expand its service offering from its signature gourmet cooking ...
(Date:10/10/2017)... 10, 2017 International research firm Parks Associates announced ... at the TMA 2017 Annual Meeting , October 11 in ... residential home security market and how smart safety and security products impact ... Parks Associates: Smart Home ... "The residential security market has ...
(Date:10/9/2017)... DIEGO , Oct. 9, 2017  BioTech ... biological mechanism by which its ProCell stem cell ... critical limb ischemia.  The Company, demonstrated that treatment ... amount of limbs saved as compared to standard ... the molecule HGF resulted in reduction of therapeutic ...
Breaking Biology Technology: