Navigation Links
Arctic soil study turns up surprising results
Date:9/23/2010

Across the globe, the diversity of plant and animal species generally increases from the North and South Poles towards the Equator but surprisingly that rule isn't true for soil bacteria, according to a new study by Queen's University biology professor Paul Grogan.

"It appears that the rules determining the patterns for plant and animal diversity are different than the rules for bacteria," says Professor Grogan.

The finding is important because one of the goals in ecology is to explain patterns in the distribution of species and understand the biological and environmental factors that determine why species occur where they do.

Researchers examined the composition and genetic difference of soil bacterial communities from 29 remote arctic locations scattered across Canada, Alaska, Iceland, Greenland and Sweden.

The report also had a second surprising finding. The researchers expected that soil samples taken 20 metres apart would be more similar in terms of bacterial diversity than soil samples taken 5,500 kilometres apart because, in theory, plant or animal communities from nearby locations are likely to be more genetically similar than those from distant locations.

Generally, they found that each soil sample contained thousands of bacterial types, about 50 per cent of which were unique to each sample.

"It turns out that there is no similarity pattern in relation to distance at all, even in comparing side-by-side samples with samples taken from either side of a continent this really amazed me," says Professor Grogan.


'/>"/>

Contact: Michael Onesi
Michael.Onesi@queensu.ca
61-533-600-077-513
Queen's University
Source:Eurekalert

Page: 1

Related biology news :

1. FDA Clears Medivances Arctic Sun 5000 for Fastest, Easiest Therapeutic Temperature Management
2. Marine animals suggest evidence for a trans-Antarctic seaway
3. Why fish dont freeze in the Arctic Ocean
4. New study shows how giant tortoises, alligators thrived in High Arctic 50 million years ago
5. First nearshore survey of Antarctic krill reveals high density, stable population in shallow waters
6. Signs of reversal of Arctic cooling in some areas
7. Best hope for saving Arctic sea ice is cutting soot emissions, says Stanford researcher
8. Arctic climate may be more sensitive to warming than thought, says new study
9. Oceanographers call for more ocean observing in Antarctica
10. Pollution dispersion research aids understanding of 2002 break-up of Antarctic ozone hole
11. Warmer summers could create challenges for nesting Arctic seabirds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/17/2016)... , Nov. 17, 2016 Global Market Watch: ... Biobanks (Disease-Based Banks, Population-Based Banks and Academics) market is to ... for Private Biobanks shows the highest Compounded Annual Growth Rate ... region during the analysis period 2014-2020. North ... of 9.95% followed by Europe at ...
(Date:11/15/2016)...  Synthetic Biologics, Inc. (NYSE MKT: SYN), a ... gut microbiome, today announced the pricing of an ... common stock and warrants to purchase 50,000,000 shares ... the public of $1.00 per share and accompanying ... offering, excluding the proceeds, if any from the ...
(Date:11/14/2016)... SANTA CLARA, Calif. , Nov. 14, ... of the biometric identification market, Frost & ... Global Frost & Sullivan Award for Visionary ... leading player in the biometric identification market ... a multi-modal verification solution for instant, seamless, ...
Breaking Biology News(10 mins):
(Date:12/8/2016)... BELLINGHAM, Washington, USA, and CARDIFF, UK (PRWEB) , ... ... ... neural circuits with very high precision light to control cells — optogenetics — ... brain. In the current state of the art, spatially patterned light projected via ...
(Date:12/8/2016)... Oxford Gene Technology ... Palette an anpassbaren SureSeq™ NGS-Panels mit dem Start ... ein schnelles und kostengünstiges Studium der Varianten bei ... Erkennung von Einzel-Nukleotid-Variationen (Single Nucleotide Variation, SNV) und ... Panel und ermöglicht eine individuelle Anpassung durch die ...
(Date:12/8/2016)... , Dec. 8, 2016  Anaconda BioMed S.L., a ... of the next generation neuro-thrombectomy system for the treatment ... Tudor G. Jovin, MD to join its Scientific Advisory ... a strategic network of scientific and clinical experts to ... of the ANCD BRAIN ® to its clinical ...
(Date:12/8/2016)... ... December 08, 2016 , ... ... exceptionally efficient human mesenchymal stem/stromal cell (hMSC) expansion medium. This single ... engineered to radically streamline culture processes, minimize processing time, significantly decrease production ...
Breaking Biology Technology: