Navigation Links
Oh mother, where art thou?
Date:3/14/2013

, first, we would expect to find that the individuals in a stranding event are, in fact, all related to each other. Second, we would expect that close relatives, especially mothers and calves, would be found in close proximity to each other when they end up on the beach during a stranding event," explained Marc Oremus of the University of Auckland and first author of the study.

Researchers analyzed both mitochondrial DNA, which is inherited exclusively from the mother, and microsatellite genotypes, which are inherited from both parents, from 490 whales involved in 12 stranding events. Contrary to the hypothesis that stranding groups consist of whales descended from a single ancestral mother (the "extended matriline" hypothesis), multiple matrilines were found in the groups stranded together.

In some strandings, the researchers assessed the spatial relationships of individual whales on the beach. The position of each stranded whale was mapped to determine if individuals found near each other were related. No correlation was found between location and kinship, even when considering only the location of nursing calves and their mothers, who were often widely separated when the group drove itself onto the shore.

Most surprising was the evidence of "missing mothers" that is, many of the stranded calves and juveniles had no identifiable mother among the other beached whales.

"Several scenarios could account for the lack of spatial cohesion, including the disruption of social bonds among kin before the actual strandings," commented Oremus. "In fact, the separation of related whales might actually be a contributing causal factor in the strandings, rather than simply a consequence."

The results of this study have important implications for rescue efforts aimed at "refloating" stranded whales. "Often, stranded calves are refloated with the nearest mature females, under the assumption that this is the mother," explained Sco
'/>"/>

Contact: Nancy Steinberg
nsteinberg@charter.net
541-961-3459
American Genetic Association
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Where the wild things go… when theres nowhere else
2. Satellite visualization tool for high-res observation accessible from anywhere with internet access
3. International study: Where theres smoke or smog, theres climate change
4. MBL scientists find bipolar marine bacteria, refuting everything is everywhere idea
5. Bumblebees do best where there is less pavement and more floral diversity
6. Bioengineered marine algae expands environments where biofuels can be produced
7. Water resources management and policy in a changing world: Where do we go from here?
8. Le Rouge et le Noir: Where the black dahlia gets its color
9. Risk of cardiac arrest depends on where you live
10. Coral scientists use new model to find where corals are most likely to survive climate change
11. Success of engineered tissue depends on where its grown
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Oh mother, where art thou?
(Date:7/21/2014)... by neurobiologist Luke Remage-Healey at the University of ... the brains of young birds enhance their ability ... development. This period has a parallel to universal ... separate study, the UMass Amherst neuroscientist and colleagues ... the brain,s auditory cortex enhances the representation of ...
(Date:7/21/2014)... runoff is causing problems for the world,s water ... Agency found stormwater runoff to be one of ... rivers, streams, lakes, ponds, reservoirs, bays, and estuaries. ... fish and wildlife populations, foul drinking water, and ... Carolina State University are looking to rain gardens ...
(Date:7/21/2014)... Cystoid macular edema (CME) is a common complication ... in which patients typically lose night and side vision ... also decrease central vision. Current treatments for CME in ... adverse results. , Researchers from the Massachusetts Eye and ... Medicine tested whether the extent of retinal swelling due ...
Breaking Biology News(10 mins):Studying estrogens made by the brain may offer new insights in learning and memory 2Studying estrogens made by the brain may offer new insights in learning and memory 3Filter bed substrates, plant types recommended for rain gardens 2Iodine may alleviate swelling in retinitis pigmentosa patients' retinas 2
... have much in common with a Rottweiler, you might be ... a cave in the Altai Mountains of Siberia for 33,000 ... domestication and, together with equally ancient dog remains from a ... occurred repeatedly in different geographic locations rather than with a ...
... is available in German . Mate ... animal species. During mating season male testosterone levels rise, ... features. Male bonobos, however, invest much more into friendly ... collide with this increased tendency towards forming pair-relationships. ...
... 26 million Americans with diabetes, drawing blood is the ... invasive and at least minimally painful. Researchers at Brown ... check blood sugar levels by measuring glucose concentrations in ... convergence of nanotechnology and surface plasmonics, which explores the ...
Cached Biology News:Dog skull dates back 33,000 years 2Dog skull dates back 33,000 years 3Bonobos' unusual success story 2Biochip measures glucose in saliva, not blood 2Biochip measures glucose in saliva, not blood 3
(Date:7/18/2014)... 18, 2014  On July 18, 2014, ... Shire,s complementary fit and the benefits of ... of the infographic materials will be available ... In accordance with Rule 30.4 ... this announcement will be available on AbbVie,s ...
(Date:7/18/2014)... , July 18, 2014 ... in Animal Research for the third consecutive year. The ... University, will attend a 1-week course at Zürich University ... the 3Rs (Replace, Reduce, Refine). As head of the ... has been given the task of adapting experimental animal ...
(Date:7/17/2014)... Pharmaceuticals Inc. (Vanda) (NASDAQ: VNDA ), a ... products for the treatment of central nervous system disorders, ... quarter of 2014 on Thursday, August 7, 2014, before ... host a conference call at 10:00 AM ET on ... discuss the second quarter 2014 financial results and other ...
(Date:7/17/2014)... MELBOURNE, Australia , July 17, 2014  Prana ... today provided an update on its clinical development program ... , the Florey Institute of Neuroscience and Mental Health, ... Prana,s Phase 2 IMAGINE and EURO trials in his ... Copenhagen, Denmark . The presentation ...
Breaking Biology Technology:NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 2NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 3NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 4NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 5NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 6NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 7Young Moscovite Researcher Receives this Year's "Basel Declaration Award for Education in Animal Research" 2Vanda Pharmaceuticals to Announce Second Quarter 2014 Financial Results on August 7, 2014 2Prana Alzheimer's disease Development Program update 2Prana Alzheimer's disease Development Program update 3Prana Alzheimer's disease Development Program update 4Prana Alzheimer's disease Development Program update 5
... www.mchange.org Milwaukee As the highway reconstruction ... leveled at the amount of money, $685,000, spent on a ... , ,The Web site for the Marquette Interchange Project ... a joint venture between the consultants working on the interchange, ...
... sell advertising to competitors of Geico Corp. who use ... court in Virginia has ruled. Advertising based on Web ... Googles business. In the third quarter, about half of ... also called sponsored links. , ,This case involved ...
... companies out there will give you a logo at no cost, ... free Web site. I guess the nextbig thing will be that ... and how are they doing this? , ,The Internet has removed ... issues in real time without the fancy decorum and the big-time ...
Cached Biology Technology:$685,000 too much for construction Web site, critics say 2$685,000 too much for construction Web site, critics say 3Google wins first battle in trademark war 2Free branding? Why not? 2Free branding? Why not? 3
GOAT ANTI FRK...
... Spots and complementary RNA Spikes for the ... for glass array printing and for protocol ... cDNA labeling, hybridization stringency and background. Normalize ... Spots and Oligo Spots, and complementary RNA ...
MOUSE ANTI S. MUTANS PEPTIDOGLYCAN...
For the quantitative determination of canine Interleukin 10,(IL-10) concentrations in cell culture supernates, canine serum,and plasma....
Biology Products: