Navigation Links
More bang for bugs
Date:12/13/2012

A new study from the rainforests of Panama provides an unprecedented level of detail regarding the diversity and distribution of arthropod species from the soil to the forest canopy. Yves Basset, scientific coordinator of the CTFS Arthropod Initiative at the Smithsonian Tropical Research Institute, led an international team on Project IBISCA-Panama to sample, sort, catalogue, and finally estimate that a 6,000 hectare forest hosts a total of around 25,000 arthropod species a figure vastly outnumbering that of better-studied organisms. The study will be published online on Dec. 13 in the journal Science.

Most multicellular species on Earth are arthropods living in tropical forests. Yet, given the difficulties involved in merely tallying them, we know very little about their exact numbers even at the scale of a single forest. A massive collaborative effort involving 102 researchers from 21 countries was necessary to collect and identify arthropods from all parts of the rainforest. During 2003-2004, the field team spent an effort of nearly 70 person- or trap-years in sampling the rainforest canopy from a construction crane, inflatable platforms, balloons, climbing ropes through forest layers, as well as crawling along the forest floor to sift soil, and trap and bait arthropods. During the ensuing eight years, the team sorted and identified 130,000 arthropods, to a total of more than 6,000 species.

By scaling up the diversity values obtained from twelve intensively-sampled sites, the team was able to calculate that the rainforest reserve harbors in excess of 25,000 arthropod species. "This is a high number as it implies that for every species of vascular plant, bird or mammal in this forest, you will find 20, 83 and 312 species of arthropods, respectively," explains Basset. "If we are interested in conserving the diversity of life on Earth, we should start thinking about how best to conserve arthropods," adds Tomas Roslin from the University of Helsinki, one of 35 co-authors.

"What surprised us the most was that more than half of all species could be found in a single hectare of the forest", said Basset. "This is good news, as it means that to determine the species diversity of a tropical rainforest, we need not sample gigantic areas: a total of one hectare may suffice to get an idea of regional arthropod richness provided that this total includes widely spaced plots representative of variation within the forest," said Roslin.

"Another exciting finding was that the diversity of both herbivorous and non-herbivorous arthropods could be accurately predicted from the diversity of plants", says Basset. "By focusing conservation efforts on floristically diverse sites, we may save a large fraction of arthropods under the same umbrella. Further, this strengthens past ideas that we should really be basing estimates of global species richness on the number of plant species," stresses Roslin.

"While we have assigned immense resources to mapping our genes, resolving sub-atomic structures and searching for extra-terrestrial life, we have invested much less in exploring with whom we share the Earth. Why such research should be run on a shoe string budget just escapes me," reflects Basset.


'/>"/>

Contact: Beth King
kingb@si.edu
202-633-4700 x2821
Smithsonian Tropical Research Institute
Source:Eurekalert

Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/14/2016)... SANTA CLARA, Calif. , Nov. 14, ... of the biometric identification market, Frost & ... Global Frost & Sullivan Award for Visionary ... leading player in the biometric identification market ... a multi-modal verification solution for instant, seamless, ...
(Date:6/22/2016)... 2016  The American College of Medical Genetics and Genomics ... as one of the fastest-growing trade shows during the ... Bellagio in Las Vegas . ... growth in each of the following categories: net square feet ... of attendees. The 2015 ACMG Annual Meeting was ranked 23 ...
(Date:6/22/2016)... On Monday, the Department of Homeland Security ... solutions for the Biometric Exit Program. The Request for ... (CBP), explains that CBP intends to add biometrics to ... United States , in order to deter visa ... Logo - http://photos.prnewswire.com/prnh/20160622/382209LOGO ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... , December 2, 2016 The immunohistochemistry ... growing at a CAGR of 7.3% during the forecast period of ... and diagnostic laboratories segment accounted for the largest share of immunohistochemistry ... ... on global immunohistochemistry (IHC) market spread across 225 pages, profiling 10 ...
(Date:11/30/2016)... ... November 30, 2016 , ... ... magnet Voice Coil Actuator with a flexure design that ensures high alignment accuracy ... cost-effective pricing and is ideally suited where extreme precision is required, such as ...
(Date:11/30/2016)... November 30, 2016 The global ... players hold a dominant share in the overall market. ... International, Inc., and Merck KGaA, held a lion,s share ... Market Research observes that these companies are expected to ... products that are do not require rabbit pyrogen testing ...
(Date:11/30/2016)... Biotest Pharmaceuticals Corporation (BPC), a leading manufacturer ... addition of its newest plasma collection center located at ... The 15,200 square foot state-of-the-art facility officially opened its ... the total number of BPC,s plasma collection centers to ... Chief Executive Officer said "We are pleased to become ...
Breaking Biology Technology: