HOME >> BIOLOGY >> NEWS
Study of marine snail suggests conservation efforts should consider factors beyond genetic diversity

A study of climate-induced evolutionary change in a California intertidal snail suggests that resource managers shouldnt focus exclusively on genetic diversity when developing conservation plans for protecting endangered or threatened species.

In the study, detailed in the June 1 issue of Science, biologists at the University of California, San Diego and at Louisiana State University measured the genetic diversity of populations of Acanthinucella spirata, a common marine gastropod, from Tomales Bay, 40 miles north of San Francisco, to San Diego. They discovered that the snails genetic diversity, the most commonly used gauge of a populations health, is highest in the Los Angeles area and lowest in the northern part of its range.

Measurements of genetic diversity now greatly influence decisions on where to locate protected reserves, since the most genetically diverse populations are assumed to be better able to withstand environmental changes. But while the snails around Los Angeles and to the south are genetically more diverse than those to the north, the researchers discovered that they are less diverse morphologically. This is due to the presence of a different shell form, or morphology, in some populations in the northern part of the range that is not found in the Los Angeles area or in regions to the south.

Theres a big difference in the morphologyin the shape and size of the shellsbetween the northern and the southern populations, says Kaustuv Roy, an assistant professor of biology at UCSD who conducted the study with Michael E. Hellberg, an assistant professor of biology at LSU, and Deborah P. Balch, a former student at UCSD.

Looking at the coast today, theres a dramatic decline in genetic diversity in this species going from south to north, he adds. But the northern regions have a greater amount of morphological diversity. So, which do you use to make conservation decisionsgenetic diversity or morphological diversity? Heres a ca
'"/>

Contact: Kim McDonald
kimmcdonald@ucsd.edu
858-534-7572
University of California - San Diego
31-May-2001


Page: 1 2 3

Related biology news :

1. Study: Emission of smog ingredients from trees is increasing rapidly
2. Study explores gene transfer to modify underlying course of Alzheimers disease
3. Study reveals why eyes in some paintings seem to follow viewers
4. Study by Israeli scientists provides insight on DNA code
5. Study reveals first genetic step necessary for prostate cancer growth
6. Study of flu patients reveals virus outsmarting key drug
7. Study in Science reveals recreational fishing takes big bite of ocean catch
8. Study suggests cell-cycle triggers might be cancer drug targets
9. Study narrows search for genes placing men at increased risk for prostate cancer
10. Study links high carbohydrate diet to increased breast cancer risk
11. Study explains spatial orientation differences between sexes

Post Your Comments:
(Date:10/30/2014)... therapeutics present unique challenges when it comes to ... harm. New consensus guidelines for toxicity testing that ... characteristics of these novel biopharmaceuticals are presented in ... from Mary Ann Liebert, Inc. publishers . ... Nucleic Acid Therapeutics website until November 30, ...
(Date:10/30/2014)... Oct. 29, 2014  Securus Technologies, a ... technology solutions for public safety, investigation, corrections ... deployed exciting enhancements to its THREADS™ product, ... provide actionable intelligence and focused leads for ... drive technological innovation through identifying and delivering ...
(Date:10/29/2014)... Beaverton, OR) New research presented at the ... in Houston, TX showed for the first time ... in women using a readily available nutritional supplement, ... by Dr. Judith A. Smith, Pharm.D., associate professor ... Sciences at The University of Texas Health Science ...
Breaking Biology News(10 mins):New guidelines for reproductive & developmental toxicity testing of oligonucleotide drugs 2Securus Technologies Adds Advanced Features to Its Industry-Leading Investigative Analytics Product 2HPV infections in women eradicated by AHCC, Japanese mushroom extract 2
(Date:10/30/2014)... , Oct. 30, 2014  Regado Biosciences, Inc. ... will hold a conference call and live audio webcast ... to discuss its third quarter 2014 financial results. ... call by dialing (888) 347-1165 for domestic callers or ... be webcast live under the investor relations section of ...
(Date:10/30/2014)... (Oct. 29, 2014) – The severe flooding that devastated ... been less destructive if the bridges, roads and other ... new study from the University of Colorado Denver. , ... infrastructure," said Jimmy Kim, PhD, associate professor of structural ... Applied Science and lead author the study. "There is ...
(Date:10/27/2014)... October 27, 2014 The new ... Type (High & Medium), Sub-type (Primary & Secondary), ... Infrastructure & Transportation & Power Generation) - Trends ... GIS market with analysis and forecasting of the ... Data Tables with 52 Figures spread through 146 ...
(Date:10/27/2014)... TORONTO , Oct. 27, 2014 ... (OTCQB: GNBT) today announced two presentations demonstrating that ... its novel proprietary cancer immunotherapeutic AE37 vaccine correlated ... patients. The AE37 cancer vaccine is being developed ... ( www.antigenexpress.com ). The presentations are being made ...
Breaking Biology Technology:Regado Biosciences to Provide Third Quarter 2014 Financial Results 2CU Denver study says upgrading infrastructure could reduce flood damage 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 3Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 4Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 2Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 3Generex Announces Presentations Correlating Immunological Response with Reduced Recurrence in Phase II Study of AE37 Breast Cancer Vaccine in Patients at the American College of Surgeons 4
Cached News: