Navigation Links
UBC study first to show evolution's impact on ecosystems
Date:4/1/2009

Scientists have come to agree that different environments impact the evolution of new species. Now experiments conducted at the University of British Columbia are showing for the first time that the reverse is also true.

Researchers from the UBC Biodiversity Research Centre created mini-ecosystems in large aquatic tanks using different species of three-spine stickleback fish and saw substantial differences in the ecosystems in as little as 11 weeks.

Their findings are published in today's Advanced Online Publication of the journal Nature.

Stickleback fish originated in the ocean but began populating freshwater lakes and streams following the last ice age. Over the past 10,000 years a relatively short time span in evolutionary terms different species with distinct physical traits have emerged in some fresh water lakes.

The UBC study involved new species found in British Columbia lakes that have evolved distinct physical traits: limnetic sticklebacks (smaller open water dwellers with narrow mouths), benthic sticklebacks (larger bottom dwellers with a wide gape) and a generalist species to represent the probable ancestor of the two species.

"Simply by what they eat and how they live, even young species that have 'recently' diversified can have a major impact on their food web," says study lead author Luke Harmon, who conducted the study while a post-doctoral fellow at UBC. He is now an assistant professor at the University of Idaho. "This study adds to a broader body of literature showing that species diversity matters in important ways."

Further analysis showed the tanks with the two newest species had larger molecules of dissolved organic carbon, or bits of decaying plants and animals. This prevented sunlight from penetrating the water and inhibited plant growth.

"Our study shows that through evolution, sticklebacks can engineer the light environment of their own ecosystems," says co-autho
'/>"/>

Contact: Brian Lin
brian.lin@ubc.ca
604-822-2234
University of British Columbia
Source:Eurekalert

Page: 1 2

Related biology news :

1. Study: Health undervalued in reproductive rights debate
2. Health choices predict cancer survival, U-M study finds
3. Taste, odor intervention improves cancer therapy, according to Virginia Tech, Wake Forest study
4. UW-Madison study reveals new options for people with PKU
5. Brain building: Study shows brain growth tied to cell division in mouse embryos
6. Skin cancer study uncovers new tumor suppressor gene
7. Study assesses impact of fish stocking on aquatic insects
8. Study unravels why certain fishes went extinct 65 million years ago
9. CellThera and WPI advance in regeneration study
10. Innerscope Research(R) Uses Same-Day Results From Biometric Study to Identify Key Themes, Styles Behind Effective, Engaging Speaker Presentations
11. Lancet study supports new, highly effective treatment for blood disorder
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/17/2014)... UCLA atmospheric scientists were instrumental in the creation of ... tool to classify the fire threat potential of the ... a spark into an inferno. The index was introduced ... with UCLA and San Diego Gas and Electric. , ... to "extreme" that will be used to help fire ...
(Date:9/17/2014)... doctoral student have designed a device based on a ... and dew., The device could provide water in drought-stricken ... Cheng Luo, professor in the Mechanical & Aerospace Engineering ... College of Engineering department, published "Bioinspired Plate-Based Fog Collectors" ... Society) Applied Materials & Interfaces ...
(Date:9/17/2014)... 2014) A rare genetic disorder known as Jacobsen syndrome ... joint investigation by researchers at San Diego State University ... to suggesting better treatment options for people with Jacobsen ... genetic underpinnings of autism., Jacobsen syndrome affects approximately 1 ... Health. It occurs in a person when there is ...
Breaking Biology News(10 mins):UCLA scientists play key role in developing new Santa Ana Wildfire Threat Index 2Shorebird's beak inspires UT Arlington research on water collection 2A link between Jacobsen syndrome and autism 2
... a skin poxvirus from the immune system may become the ... say medical researchers at the University of Illinois at Urbana-Champaign. ... of Virology, the scientists revealed both the function of the ... to inhibit inflammatory responses. , MC160 is so named because ...
... launched on Tuesday 14 February at the Lions Corneal Donation ... Victorians a year by extending the time between donation and ... facilities, LCDS can now store corneas at human body temperature ... were held at low temperatures and had to be transplanted ...
... make love last, but a team of University of Florida ... flowers go the distance. , A UF environmental horticulturist has ... three or more days through post-harvest techniques so consumers see ... Valentine's Day but throughout the year. , "Our research has ...
Cached Biology News:Protein finding could lead to treatment for inflammatory diseases 2Protein finding could lead to treatment for inflammatory diseases 3Australian first to save sight 2UF researchers develop ways to keep the bloom on the rose 2UF researchers develop ways to keep the bloom on the rose 3
(Date:9/19/2014)... September 18, 2014 Scientists at NYU Langone Medical ... the efficiency of the process for turning adult cells ... compounds, including vitamin C. Using the new technique in ... obtained from adult skin cells by more than 20-fold ... is efficient and reliable, and thus should generally accelerate ...
(Date:9/19/2014)... 2014  An entire month is dedicated to one ... Charcot-Marie-Tooth disease (CMT) – a debilitating neuromuscular disease affecting ... atrophy, weakness, and foot and hand deformities. CMT affects ... CMT is a progressive disease, and over time patients ... devices such as leg braces, wheelchairs and scooters to ...
(Date:9/19/2014)... , Sept. 19, 2014 Pfenex Inc. (NYSE ... development of high-value and difficult to manufacture proteins including ... at the 21 st Annual NewsMakers in the ... . Bertrand Liang , chief executive officer of ... programs and business strategy on Friday, September 26, 2014 ...
(Date:9/19/2014)... (PRWEB) September 19, 2014 Cereal ... food industries will gather October 5–8, 2014, for ... Rhode Island Convention Center in Providence, Rhode Island. ... the work of food scientists, chemists, microbiologists, nutritionists, ... and food production management. To date, 1,000 attendees ...
Breaking Biology Technology:NYU Langone scientists report reliable and highly efficient method for making stem cells 2NYU Langone scientists report reliable and highly efficient method for making stem cells 3September is Charcot-Marie-Tooth (CMT) Awareness Month - Scheduled events, activities and important partnerships announced throughout the month! 2Pfenex to Present at Upcoming Industry Conference on September 26 2Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 2Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 3
... of Chicago's annual forecast for this year, I thought it ... the foreclosures on houses. You would think that by now the ... be more financially secure, but it does not look that way. ... sector is still spotty with stocks like Motorola sliding ...
... note: This is the final installment of a series ... office of Whyte Hirschboeck Dudek . The first ... preventing intellectual property infringement within organizations. The following commentary, ... the ramifications of a recent Supreme Court ruling involving ...
... could lead to a local expansion, Cardinal Health ... and services (PTS) segment, including the Middleton-based Gala Biotech ... in cash. , ,Cardinal Health, a Dublin, Ohio-based provider of ... 2002. The transaction is not expected to immediately impact Gala ...
Cached Biology Technology:Real pulse of the economy? Check real estate foreclosures 2Real pulse of the economy? Check real estate foreclosures 3Real pulse of the economy? Check real estate foreclosures 4Real pulse of the economy? Check real estate foreclosures 5eBay decision changes balance of power in patent disputes 2eBay decision changes balance of power in patent disputes 3eBay decision changes balance of power in patent disputes 4eBay decision changes balance of power in patent disputes 5eBay decision changes balance of power in patent disputes 6Gala Biotech among companies sold for $3.3 billion 2
...
...
...
... are designed to rapidly and reliably ... our patented APA Technology. APAgene provides ... extraordinarily competitive price. All necessary ingredients ... Locator Kit can be used for ...
Biology Products: