Biology

How Goosegrass Conquered a Brand New Volcanic Island

How the science connects

Seed dispersalGenetic analysisIsland biogeography

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Researchers from the University of Tsukuba used genetic analysis to trace the origins of Eleusine indica (goosegrass) found on Nishinoshima, a recently formed volcanic island in the northwestern Pacific Ocean south of Japan. The study investigated how this grass species colonized the newly emerged island, providing insights into the initial stages of biological colonization on virgin land. This research takes advantage of the rare opportunity to observe ecosystem development from its very beginning on newly formed terrain.


Understanding how species colonize new land helps scientists predict and model ecosystem development in disturbed or newly formed environments. This knowledge has applications for ecological restoration efforts and predicting how life might establish itself in areas affected by natural disasters or environmental change.


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Seed dispersal Concept coming soon Genetic analysis Concept coming soon Island biogeography Concept coming soon

Opportunities to directly observe how life colonizes newly formed land and how ecosystems subsequently develop are exceedingly rare. In a study published in the Journal of Plant Research, researchers at University of Tsukuba used genetic analyses to investigate the origin of Eleusine indica, a grass species found on Nishinoshima, an active volcanic island in the northwestern Pacific south of mainland Japan. Having newly emerged, the island offers a unique natural laboratory for understanding the earliest stages of biological colonization and ecosystem development.

Source: Genetic evidence reveals how goosegrass colonized a newly formed volcanic island