Navigation Links
How can scientists measure evolutionary responses to climate change?
Date:11/30/2009

As global temperatures continue to rise scientists are presented with the complex challenge of understanding how species respond and adapt. In a paper published in Insect Conservation and Diversity, Dr Francisco Rodriguez-Trelles and Dr Miguel Rodriguez assess this challenge.

Twentieth-Century global warming of approximately 0.6˚C has already affected the Earth's biota and now the major challenge facing ecologists and evolutionary biologists is to predict how biological impacts of climate change will unfold in response to further projected temperature increases of up to 6˚C by 2100.

"This relatively mild level of thermal increase has already caused shifts in species ranges, especially at higher latitudes and towards the poles," said Rodriguez-Trelles. "Understanding biological responses to global climate warming can be dauntingly complex, but primarily it requires careful quantification of the rates of temporal change,"

Assessing the trajectory of biological processes under global warming begins by obtaining accurate estimates of these processes and linking them to historical records. This reveals if changes in species are indeed long term responses, rather than the short term behavioural changes regularly prompted by the succession of the seasons.

However, updating historical records is proving to be far less straightforward than might be supposed. This is because of the complexities of global warming, which concomitantly to the increase in Earth's temperature is causing an expansion of the length of the growing season.

This presents scientists with problems as to the precision with which time reckoning systems track the course of global warming-induced changes to the Earth System, and can lead to seriously distorted results. Long-term studies of phenological trends show that neglecting the increasing lag between seasonal climate and calendar dates can lead to confusing the direct and indirect effects of global warming.

"The evidence of Earth's life responses to global warming is overwhelming. However a widespread approach to quantify biological effects of global warming relies on comparisons Of historical with present records of biological variables," concluded Rodriguez-Trelles. "In this paper we have identified several reasons why this strategy can lead to seriously distorted estimates of biological effects of global warming, as well as ways they could be handled in future studies."


'/>"/>

Contact: Ben Norman
Benorman@wiley.com
44-12-437-70375
Wiley-Blackwell
Source:Eurekalert

Related biology news :

1. Seeing family for the holidays? Scientists discover how the stress might kill you
2. The pill for him: Scientists find a hormonal on-and-off switch for male fertility
3. Caltech scientists find emotion-like behaviors, regulated by dopamine, in fruit flies
4. Scientists watch as peptides control crystal growth with switches, throttles and brakes
5. Reference genome of maize, most important US crop, is published by team co-led by CSHL scientists
6. ORNL, Los Alamos pioneer new approach to assist scientists, farmers
7. Scripps research scientists find new link between insulin and core body temperature
8. Smithsonian scientists find the frog legs trade may facilitate spread of pathogens
9. Scientists unravel evolution of highly toxic box jellyfish
10. Members of Congress, university leaders, scientists launch ScienceWorksForUS
11. Scientists guide immune cells with light and microparticles
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... N.Y. , April 11, 2017 ... fingerprints, but researchers at the New York University ... College of Engineering have found that partial similarities ... security systems used in mobile phones and other ... thought. The vulnerability lies in the ...
(Date:4/5/2017)... YORK , April 5, 2017 Today ... is announcing that the server component of the HYPR ... known for providing the end-to-end security architecture that empowers ... HYPR has already secured over 15 million ... makers including manufacturers of connected home product suites and ...
(Date:3/30/2017)... -- On April 6-7, 2017, Sequencing.com will host the world,s ... at Microsoft,s headquarters in Redmond, Washington ... health and wellness apps that provide a unique, personalized ... is the first hackathon for personal genomics and the ... the genomics, tech and health industries are sending teams ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... , ... October 12, 2017 , ... ... two-dimensional representations of a complex biological network, a depiction of a system of ... mess,” said Dmitry Korkin, PhD, associate professor of computer science at Worcester Polytechnic ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... Lithuania, announced today that they have entered into a multiyear collaboration to identify ... CRISPR researchers with additional tools for gene editing across all applications. , Under ...
(Date:10/12/2017)... ca (PRWEB) , ... October 12, 2017 , ... ... the Surgical Wound Market with the addition of its newest module, US Hemostats ... $1.2B market for thrombin hemostats, absorbable hemostats, fibrin sealants, synthetic sealants and biologic ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... genomics analysis platform specifically designed for life science researchers to analyze and ... researcher Rosalind Franklin, who made a major contribution to the discovery of ...
Breaking Biology Technology: