Navigation Links
How many species on Earth? 8.7 million
Date:8/23/2011

Eight million, seven hundred thousand species (give or take 1.3 million).

That is a new, estimated total number of species on Earth -- the most precise calculation ever offered -- with 6.5 million species found on land and 2.2 million (about 25 percent of the total) dwelling in the ocean depths.

Announced today by Census of Marine Life scientists, the figure is based on an innovative, validated analytical technique that dramatically narrows the range of previous estimates. Until now, the number of species on Earth was said to fall somewhere between 3 million and 100 million.

Furthermore, the study, published today by PLoS Biology, says a staggering 86% of all species on land and 91% of those in the seas have yet to be discovered, described and catalogued.

Says lead author Camilo Mora of the University of Hawaii and Dalhousie University in Halifax, Canada: "The question of how many species exist has intrigued scientists for centuries and the answer, coupled with research by others into species' distribution and abundance, is particularly important now because a host of human activities and influences are accelerating the rate of extinctions. Many species may vanish before we even know of their existence, of their unique niche and function in ecosystems, and of their potential contribution to improved human well-being."

"This work deduces the most basic number needed to describe our living biosphere," says co-author Boris Worm of Dalhousie University. "If we did not know -- even by an order of magnitude (1 million? 10 million? 100 million?) -- the number of people in a nation, how would we plan for the future?"

"It is the same with biodiversity. Humanity has committed itself to saving species from extinction, but until now we have had little real idea of even how many there are."

Dr. Worm notes that the recently-updated Red List issued by the International Union for the Conservatio
'/>"/>

Contact: Terry Collins
tc@tca.tc
416-538-8712
Census of Marine Life
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. A new dinosaur species, Pachyrhinosaur lakustai, unveiled from Pipestone Creek, Alberta, Canada
2. Tropical rainforest and mountain species may be threatened by global warming
3. Brown scientist finds coastal dead zones may benefit some species
4. Ecologists say metabolism accounts for why natural selection favors only some species
5. Marine invasive species advance 50km per decade, World Conference on Marine Biodiversity told
6. Marine invasive species advance 50 km per decade, World Conference on Marine Biodiversity told
7. 11,000 alien species invade Europe
8. Snowy owl -- a marine species?
9. Dwarf crocodiles split into three species
10. Researchers create new class of fluorescent dyes to detect reactive oxygen species in vivo
11. Over 1,000 species discovered in the Greater Mekong in past decade
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
How many species on Earth? 8.7 million
(Date:8/20/2014)... Feng has built upon a National Science Foundation (NSF) ... program, and synergistically complemented it with subsequent collaborative grants, ... on "big computing" for mini-drones and a $1 million ... on "big data" for the life sciences. , As ... grant, he was able to tell a much larger, ...
(Date:8/20/2014)... When a colony of honeybees grows to about 4,000 ... reproductive cycle: the building of a special type of ... team of experts from the Department of Neurobiology and ... what starts the reproductive cycle of honeybee colonies. The ... The Science of Nature . , Reproduction isn,t ...
(Date:8/20/2014)...  The second annual Biometrics UnPlugged Executive Summit, ... Florida on September 15, 2014, will ... and Strategy at Samsung, and Philippe de Raet, Vice ... this year,s event is Mobility at the Crossroads ... UnPlugged: Mobility at the Crossroads of Commerce & ...
Breaking Biology News(10 mins):The internet was delivered to the masses; parallel computing is not far behind 2The internet was delivered to the masses; parallel computing is not far behind 3The internet was delivered to the masses; parallel computing is not far behind 4Worker bees 'know' when to invest in their reproductive future 2Biometrics UnPlugged: Mobility at the Crossroads of Commerce & Privacy to Feature Interactive Sessions with Samsung and Experian 2
... EAST LANSING, Mich. Nitrous oxide, a potent greenhouse gas, ... century, and nitrogen in waterways is fueling part of that ... on this new study, the role of rivers and streams ... appears to be twice as high as estimated by the ...
... Christmas, BYU nutritionists are squeezing all the healthy compounds out ... their age-old health benefits. , The popular stocking stuffer is ... wanted to learn why a whole orange is better for ... of the research could be a super-supplement that captures the ...
... Fast-moving objects create blurry images in photography, and the ... tissues constantly in motion, such as the breathing lung. ... developed a method to stabilize living lung tissue for ... The method allowed the team to observe, for the ...
Cached Biology News:Waterways contribute to growth of potent greenhouse gas 2The orange in your stocking: researchers squeezing out maximum health benefits 2New imaging advance illuminates immune response in breathing lung 2New imaging advance illuminates immune response in breathing lung 3
(Date:8/20/2014)... -- Decision Resources Group finds that the vascular access device market in ... India and China (BRIC) ... the size of the United States market ... faster growth as a result of strong economic expansion, improving access ... from Decision Resources Group,s coverage of the BRIC vascular access device ...
(Date:8/20/2014)... , Aug. 20, 2014 /PRNewswire-iReach/ -- A case ... collaboration between the school,s bioengineering department and the ... the Intel® Software Academic Program, UCSD,s research focuses ... the human body.  Photo - ... exhibits the work of Dr. Todd P. ...
(Date:8/19/2014)... (PRWEB) August 20, 2014 One ... regenerative medicine is an inadequate vascular supply. Nutrient ... and decellularized tissues is critical for successful regeneration ... attempted to mitigate deficiencies in vascularization and promote ... scaffold bioactivity, optimizing scaffold design and architecture, and ...
(Date:8/19/2014)... Cellgen Diagnostics today launched ... a corporate lab for its genetic-based medical testing ... a critical component in the move from today’s ... of personalized medicine – a more predictive, preventive, ... contributions will support Cellgen’s intent to develop the ...
Breaking Biology Technology:BRIC Vascular Access Device Market Valued at $1.6 Billion in 2013, Similar to the U.S. Market 2BRIC Vascular Access Device Market Valued at $1.6 Billion in 2013, Similar to the U.S. Market 3Intel and University of San Diego Bioengineering Department Release Case Study on Health Sciences Research 2Vascularization in Tissue Engineering Highlighted at 12th New Jersey Symposium on Biomaterials Science 2Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 2Cellgen Diagnostics Launches Indiegogo Crowdfunding Campaign for DNA Medical Testing Device 3
... YORK, Dec. 10, 2010 Pfizer Inc. (NYSE: ... of patient safety, it is voluntarily withdrawing Thelin® (sitaxentan) ... regions where it is approved (the European Union, Canada ... of Thelin worldwide. (Logo: http://photos.prnewswire.com/prnh/20100416/PFIZERLOGO) ...
... University researchers have moved a step closer to ... and hold other advantages over conventional lithium-ion batteries. ... display screens, smart cards, flexible electronics and biomedical ... nickel-tin nanowires perfectly encased in PMMA, a widely ...
... the world,s smallest battery its anode a single ... has been created by a team led by Sandia ... the anode,s characteristics, the tiny rechargeable, lithium-based battery was ... Center for Integrated Nanotechnologies (CINT), a Department of Energy ...
Cached Biology Technology:Pfizer Stops Clinical Trials of Thelin® and Initiates Voluntary Product Withdrawal in the Interest of Patient Safety 2Pfizer Stops Clinical Trials of Thelin® and Initiates Voluntary Product Withdrawal in the Interest of Patient Safety 3Better batteries from the bottom up 2World's smallest battery created at CINT nanotechnology center 2World's smallest battery created at CINT nanotechnology center 3
... F2α isopropyl ester (15(R)-17-phenyl trinor PGF2α ... containing both a double bond at ... group at C-15. Similar to 15(S)-latanoprost, ... a potential impurity in most commercial ...
ACS Reagent Grade C 19 H 14 O 5 S Formula Weight: 354.38 PRODUCT SPECIFICATIONS Form: Rust/red crystalline powder Clarity of Solution: Passes test Visual Transition Interval: pH 6.8 - Yellow pH 8.2...
... Nop1p/Fibrillarin (monoclonal) Nop1p/Fibrillarin was ... of bakers yeast, Saccharomyces cerevisiae (accession ... for yeast viability and is localized ... of Nop1p is fibrillarin (accession P22087) ...
... bind specifically to Fc regions of many ... conjugates are commonly used as affinity adsorbents ... from serum, hybridoma ascites fluids, tissue culture ... are also commonly used to capture immune ...
Biology Products: