Navigation Links
Biodiversity in Ontario's Great Lakes region may be greater than we thought
Date:8/28/2013

This news release is available in French.

Branched Bartonia (Bartonia paniculata), a threatened species, is a spindly annual plant that grows to 40 cm tall and has tiny white flowers. Researchers at Trent University compared genetic data from the two geographically distinct populations of this small wetland plant, and found that the Muskoka, Ontario ones are genetically very different from a core population found in New York State, 600 km away. This discovery suggests that the Branched Bartonia in Ontario is genetically unique, and therefore under a much greater threat which impacts conservation management decisions. The findings suggest that the genetic diversity, and hence biodiversity, in the Great Lakes region of Ontario may be much greater than previously realized. This research was published today in the journal Botany.

Populations of a species are commonly separated by relatively short distances, yet sometimes there is a leap of several hundred kilometres between a species' core set of populations and a subset of populations that are known as disjuncts. In Ontario, Canada, numerous species at risk occur as disjunct populations, most commonly around the Great Lakes region.

"Though many of these populations are considered regionally threatened because they harbour a relatively small number of individuals, they may not be considered globally threatened because individuals in the core set of populations (usually further south) are often abundant," explains Claudia Ciotir, a co-author of the study and researcher in the Department of Environmental and Life Sciences at Trent University in Peterborough, Ontario. "This means that the core populations can downgrade the conservation status of the disjunct populations, but this downgrading assumes that the disjunct and core populations are closely related to one another."

"Our findings provide evidence that the accumulated genetic novelty between disjuncts and their central populations is important and we recommend that genetic novelty should be factored into future conservation policies of Canadian disjunct populations. We show that comparative genetic assessments of disjunct and central populations can provide information that is critical to decisions about conservation management."

This divergent evolutionary history may be relevant to a suite of 62 species of disjunct populations residing along the Great Lakes shores. The study "Evolutionary history and conservation value of disjunct Bartonia paniculata subsp. paniculata (Branched Bartonia) populations in Canada" was published today in the journal Botany. DOI: dx.doi.org/10.1139/cjb-2013-0063


'/>"/>

Contact: Jenny Ryan
jenny.ryan@nrcresearchpress.com
Canadian Science Publishing (NRC Research Press)
Source:Eurekalert

Related biology news :

1. EU-funded study underlines importance of Congo Basin for global climate and biodiversity
2. Top priorities in biodiversity science agreed
3. Palms reveal the significance of climate change for tropical biodiversity
4. The absence of elephants and rhinoceroses reduces biodiversity in tropical forests
5. A network of knowledge on biodiversity and ecosystem services in Europe
6. Managing biodiversity data from local government
7. Loss of biodiversity increasingly threatens human well-being: UBC, University of Michigan research
8. Citizen scientists to document biodiversity with high-resolution imagery during summer solstice
9. A new type of data papers designed to publish online interactive keys identifying biodiversity
10. Building global collaboration for biodiversity intelligence
11. What we know and dont know about Earths missing biodiversity
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/16/2016)... 2016 The global ... reach USD 1.83 billion by 2024, according to ... Technological proliferation and increasing demand in commercial buildings, ... drive the market growth.      (Logo: ... development of advanced multimodal techniques for biometric authentication ...
(Date:6/3/2016)... LONDON , June 3, 2016 /PRNewswire/ ... Transport Management) von Nepal ... ,Angebot und Lieferung hochsicherer geprägter Kennzeichen, einschließlich ... weltweit führend in der Produktion und Implementierung ... an der Ausschreibung im Januar teilgenommen, aber ...
(Date:5/24/2016)... 2016 Ampronix facilitates superior patient care by providing unparalleled technology to leaders ... is the latest premium product recently added to the range of products distributed by ... ... ... LCD Medical Display- Ampronix News ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... CA (PRWEB) , ... June 27, 2016 , ... ... for clinical trials, announced today the Clinical Reach Virtual Patient Encounter CONSULT ... care circle with the physician and clinical trial team. , Using the CONSULT module, ...
(Date:6/24/2016)... discussions on a range of subjects including policies, debt and ... Poloz. Speaking at a lecture to the Canadian ... to the country,s inflation target, which is set by both ... "In certain areas there needs to be ... why not sit down and address strategy together?" ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS LifeSciences, one of ... their brand, UP4™ Probiotics, into Target stores nationwide. The company, which has been ... Target to its list of well-respected retailers. This list includes such fine stores ...
(Date:6/23/2016)... MA (PRWEB) , ... June 23, 2016 , ... ... Peel Plate® YM (Yeast and Mold) microbial test has received AOAC Research Institute ... platform of microbial tests introduced last year,” stated Bob Salter, Vice President of ...
Breaking Biology Technology: