Navigation Links
Small, smaller, smallest -- The plight of the vaquita

Research published in the academic journal Mammal Review has uncovered the missing link in the depleting population of the vaquita. With a body less than 1.5 m long, the vaquita is the smallest living cetacean (the order Cetacea consists of whales, dolphins and porpoises). It also has one of the smallest ranges (c. 2235 km2) and one of the smallest populations (< 600 individuals based on a 1997 survey). This little porpoise is one of the two most critically endangered small cetaceans in the world, suggesting that its chances of survival are small, just like its population size and area of distribution. So, what actions have been and are being taken to prevent the vaquita’s extinction and promote its recovery" In a recent paper published in Mammal Review, the authors from Mexico and Canada reviewed the scientific issues, described previous and ongoing conservation efforts, and identified remaining obstacles, established priorities, and provided recommendations.

The vaquita is endemic to the north-western corner of the Gulf of California (north of 30º45'N and mainly west of 114º20'W), an area rich and diverse in marine mammals. It is somewhat surprising that the porpoises are limited to such a small area when there are no obvious physical barriers to prevent them from moving into the rest of the Gulf. However, there is no evidence that the vaquita’s overall range has changed in historic times. Acoustic surveys suggest that vaquitas are not only limited to the north-western Gulf all the year-round, but also that their current distribution is more restricted than previously thought ?confined to a small area off the eastern coast of the Baja California Peninsula.

What is driving the vaquita towards extinction" It is not, as is so often the case, degradation of its habitat. A risk factor analysis discounted pollution or the drastic reduction of freshwater flow from the Colorado River as primary culprits. It is also not a genetic problem. Genetic analyses
'"/>

Source:Blackwell Publishing Ltd.


Page: 1 2 3 4

Related biology news :

1. New study of the worlds smallest elephant
2. Worlds smallest cancer detection device
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Small smaller smallest The plight the vaquita

(Date:10/1/2014)... to take a healthy salad up a level by ... cancer in leafy greens. , "In the long run, ... eating the salad or making a pill from the ... engineering at Case Western Reserve School of Medicine and ... breast cancer organization is funding the research with a ...
(Date:9/30/2014)... each year, but its deep-blue waters host the ... alien species, including fish, crustaceans, and algae are ... In the open-access journal Frontiers in Marine ... data from a new information system developed by ... of alien species has changed the native biodiversity ...
(Date:9/30/2014)... Ocean Health Index rates the Earth,s oceans at ... addition, for the first time, the report assessed ... national jurisdiction (high-seas areas) all critical regions ... providing sustainable food sources. , In the third ... by scientists from UC Santa Barbara,s National Center ...
Breaking Biology News(10 mins):Scientists wield plant viruses against deadly human disease 2Scientists wield plant viruses against deadly human disease 3Biodiversity in the Mediterranean is threatened by alien species 2Rating the planet's oceans 2Rating the planet's oceans 3
... new map of the potato genome that may lead ... help feed the world,s hungry. By sequencing and ... consortium has, for the first time, tied specific potato ... and development of potatoes may enable scientists and breeders ...
... Institute, one of the National Institutes of Health, has ... of Medicine each approximately $2.3 million a year for ... Glycosciences. Gerald Hart, Ph.D., director of biological chemistry and ... will lead these independent efforts to better understand the ...
... TORONTO, Ont., July 12, 2001--Eating nuts every day could ... according to new research from St. Michael,s Hospital and ... online by the journal Diabetes Care , a ... of Toronto Department of Nutritional Sciences; St. Michael,s Hospital ...
Cached Biology News:Johns Hopkins researchers awarded $32 million 2A 'nutty' solution to type 2 diabetes management 2
(Date:9/30/2014)... AMHERST, Mass. Using a bio-mimicking analog of ... of grass, an international research team led by ... has taken a major step in developing long-sought ... to electricity for use in electronic devices. ... UMass Amherst and others at Stanford University and ...
(Date:9/30/2014)... NEW YORK , Sept. 30, 2014 /PRNewswire/ ... used to kill nematodes. Nematodes are microscopic parasitic ... soil, water, and inside other plants and animals. ... high volatility or other properties promoting migration through ... contain more than 1,000 plant-parasitic nematodes. With more ...
(Date:9/30/2014)... , Sept. 30, 2014  RegeneRx Biopharmaceuticals, Inc. ... that it has received a Canadian Patent for ... Peptides.  This patent includes claims using thymosin beta ... actin-sequestering peptides for these purposes.  The patent will ... Biopharmaceuticals, Inc. ( www.regenerx.com ) ...
(Date:9/30/2014)... September 30, 2014 OriginOil Inc. (OTC/QB: ... chemical-free process to clean up large quantities of water, ... Riggs Eckelberry reported on the launch of the company's ... site provided by partner STW Resources . , ... barrels per day (bpd) and achieved a 99.8% reduction ...
Breaking Biology Technology:Blades of grass inspire advance in organic solar cells 2Blades of grass inspire advance in organic solar cells 3Nematicides Market by Types (Fumigants, Organophosphates, Carbamate and Bio-Nematicides), Applications (Agrochemicals, Industrial, and Others), and Geography (North America, Europe, Asia-Pacific & ROW) - Global Trends & Forecasts to 2019 2RegeneRx Receives Canadian Patent for Inhibition or Reversal of Skin Aging 2OriginOil, Inc. Report to Shareholders: Blue Gold in West Texas 2
... second can make the difference between life and death, ... sensors" that allow for faster response times from military ... NC State that will help ensure those sensors will ... Afghanistan or elsewhere. "We,ve taken a sensor material ...
... ... of 2007 and to enhance patient safety with complete part traceability, can now use ... coding, scan and software tracking of each part and batch, including all leak test, ... ...
... the pleasantness of novel odors, just like a human ... notion that smell is completely personal and culture-specific. The ... Wolfson Medical Center, argue that the perception of an ... and it is only within specific contexts that personal ...
Cached Biology Technology:InterTech Development Company UDI System Announced 2Odor pleasantness shown to be partly hard-wired 2Odor pleasantness shown to be partly hard-wired 3
Human Carnosine Dipeptidase 1 Affinity Purified PAb...
Rabbit polyclonal to Syntrophin alpha 1 ( Abpromise for all tested applications). entrezGeneID: 6640 SwissProtID: Q13424...
Mouse monoclonal [Flt-1/EWC] to VEGF Receptor 1 ( Abpromise for all tested applications). entrezGeneID: 2321 SwissProtID: P17948...
Mouse monoclonal [4i97] to HLA Class 1 A25 ( Abpromise for all tested applications). Antigen: Full length protein (Human): HLA Class 1 Antigen-A25. Swiss Protein ID: P18462...
Biology Products: