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:4/5/2017)... KEY FINDINGS The global market ... CAGR of 25.76% during the forecast period of 2017-2025. ... for the growth of the stem cell market. ... MARKET INSIGHTS The global stem cell market is segmented ... The stem cell market of the product is segmented ...
(Date:3/30/2017)... ANGELES , March 30, 2017  On April ... Hack the Genome hackathon at Microsoft,s ... exciting two-day competition will focus on developing health and ... Hack the Genome is the ... been tremendous. The world,s largest companies in the genomics, ...
(Date:3/29/2017)... 29, 2017  higi, the health IT company that ... North America , today announced a Series B ... of EveryMove. The new investment and acquisition accelerates higi,s ... to transform population health activities through the collection and ... higi collects and secures data today on behalf ...
Breaking Biology News(10 mins):
(Date:8/15/2017)... ... 15, 2017 , ... Nanomedical Diagnostics , a cutting-edge ... the launch of the new NHS Agile biosensor chip . The new ... a wide range of molecules, including small and large molecules, peptides, proteins, and ...
(Date:8/15/2017)... ... August 15, 2017 , ... The Conference Forum ... Immuno-Oncology 360° (IO360°) programming through a series of upcoming panels and events. The partnership ... 2018, at The Roosevelt Hotel in New York City. , “With our experience in ...
(Date:8/14/2017)... ... August 14, 2017 , ... Opal ... using USB or PCI Express, announced the release of SYZYGY™, a new open ... satisfy the need for a compact, low cost, low pin-count, high-performance connectivity solution ...
(Date:8/11/2017)... ... August 11, 2017 , ... Algenist continues to disrupt the ... collagen like never before. , Collagen is the key structural element skin needs ... Liquid Collagen™, which include: , First to market with ...
Breaking Biology Technology: