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:4/6/2017)... Forecasts by Product Type (EAC), ... End-Use (Transportation & Logistics, Government & Public Sector, Utilities ... Generation Facility, Nuclear Power), Industrial, Retail, Business Organisation (BFSI), ... you looking for a definitive report on the $27.9bn ... ...
(Date:4/4/2017)... YORK , April 4, 2017   EyeLock ... today announced that the United States Patent and Trademark ... patent broadly covers the linking of an iris image ... same transaction) and represents the company,s 45 th ... latest patent is very timely given the multi-modal biometric ...
(Date:3/30/2017)... , March 30, 2017 Trends, opportunities ... (physiological and behavioral), by technology (fingerprint, AFIS, iris recognition, ... recognition, and others), by end use industry (government and ... immigration, financial and banking, and others), and by region ... , Asia Pacific , and ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... a United States multicenter, prospective clinical study that demonstrates the accuracy of ... capable of identifying clinically significant acute bacterial and viral respiratory tract infections ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... ... partners with the pharmaceutical and biotechnology industries to improve patient outcomes and quality ... Several trends in analytical testing are being attributed to new regulatory requirements for ...
(Date:10/11/2017)... ... October 11, 2017 , ... At its national board ... Suneel I. Sheikh, the co-founder, CEO and chief research scientist of Minnesota-based Advanced ... for membership in ARCS Alumni Hall of Fame . ASTER Labs is ...
(Date:10/11/2017)... ... ... eye wash is a basic first aid supply for any work environment, but most personal ... rinse first if a dangerous substance enters both eyes? It’s one less decision, and likely ... dual eye piece. , “Whether its dirt and debris, or an acid or alkali, getting ...
Breaking Biology Technology: