![\"Science](\"https:\/\/scitechdaily.com\/images\/Tree-of-Life-Golden-Fractal.jpg?ezimgfmt=ng%3Awebp%2Fngcb2%2Frs%3Adevice%2Frscb2-1\" "\\"Science")
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Rutgers researchers have found that life on Earth predominantly comes in the largest and smallest sizes, with the planet\u2019s biomass concentrated in organisms at either end of the size spectrum. The surprising discovery was made after a five-year study analyzing data on the size and biomass of every type of living organism. The pattern favoring large and small organisms held across all species types and was more pronounced in land-based organisms than in marine environments. The study highlights the importance of microbes and trees as the \u201csilent partners\u201d that recycle nutrients and replenish the air on Earth.<\/p>\n<\/div>\n
Rutgers researchers conduct survey on the body sizes of Earth\u2019s organisms.<\/strong><\/p>\n Life may come in all shapes and sizes, but in nature, the most extreme size ranges predominate, according to Rutgers researchers.<\/p>\n A survey of body sizes of Earth organisms, published Wednesday, March 29, in the science journal PLoS ONE,<\/em> shows that the planet\u2019s biomass \u2013 the material that makes up all living organisms \u2013 is concentrated in organisms at either end of the size spectrum.<\/p>\n \u201cThis conclusion \u2013 that life on earth comes packaged predominantly in the largest and smallest sizes \u2013 was a discovery that surprised us,\u201d said Malin Pinsky, an associate professor in the Department of Ecology, Evolution and Natural Resources in the Rutgers School of Environmental and Biological Sciences (SEBS) and an author of the study. \u201cSometimes it seems like mosquitoes or flies or ants must run the world, and yet, when we did the numbers, we found that our world is dominated by the microbes and the trees. These are the silent partners that recycle the nutrients and replenish the air all around us.\u201d<\/p>\n To obtain the results, researchers spent five years compiling and analyzing data about the size and biomass of every type of living organism on the planet \u2013 from tiny one-celled organisms such as soil archaea and bacteria to large organisms such as blue whales and sequoia trees. They found that the pattern favoring large and small organisms held across all types of species<\/div>\n ” data-gt-translate-attributes=”[{“attribute”:”data-cmtooltip”, “format”:”html”}]”>species<\/span> and was more pronounced in land-based organisms than in marine environments.<\/p>\n \u201cThe largest body sizes appear across multiple species groups, and their maximum body sizes are all within a relatively narrow range,\u201d said Eden Tekwa, lead author of the study who conducted the research first as a postdoctoral fellow at Rutgers, then at the University of British Columbia.<\/p>\n \u201cTrees, grasses, underground fungi, mangroves, corals, fish, and marine mammals all have similar maximum body sizes,\u201d added Tekwa, now a research associate with McGill University\u2019s Department of Biology. \u201cThis might suggest that there is a universal upper size limit due to ecological, evolutionary, or biophysical limitations.\u201d<\/p>\n Katrina Catalano, another author of the study, conducted research as a doctoral student in the Department of Ecology, Evolution and Natural Resources at Rutgers.<\/p>\n The researchers said humans belong to the size range that comprises the highest biomass, which is a relatively large body size. The work opens the door to a better understanding of elemental life processes.<\/p>\n \u201cBody size is a fundamental feature of life, governing everything from metabolic rates to birth rates and generation times,\u201d Pinsky said. \u201cCataloging which body sizes are most common is a key step towards understanding the world around us.\u201d<\/p>\n Reference: \u201cThe sizes of life\u201d 29 March 2023, PLOS ONE<\/em>.
DOI: 10.1371\/journal.pone.0283020<\/a><\/p>\n<\/div>\n