Selected tags: trophic

Finding the Ecological Cliff and Staying Away from It: Thresholds for Sustainability

In “The Tipping Point: How Little Things Can Make a Big Difference,” author and journalist, Malcolm Gladwell explains how sociological changes often happen very quickly and unexpectedly.   He describes a tipping point as “the moment of critical mass, the threshold, the boiling point.”

It turns out that many natural ecosystems have tipping points too, called ecological thresholds.  Healthy ocean ecosystems can resist change, exist in alternative states and recover from storms, earthquakes, volcanic eruptions – and even from human activities like pollution and fishing.  Having more than one species that do similar things but in slightly different ways helps ecosystems stay healthy; i.e., makes them resilient.  But when we reduce species so much that they can't play their ecological roles or when we stress the system too much, these ecosystems can reach a tipping point and change rapidly from beautiful, productive systems to damaged systems that are incapable of creating the wonders and benefits they once produced. Read More »

Posted in Uncategorized| Also tagged , , , | Comments closed
  • About this blog

    EDFish is the voice of oceans experts at EDF working around the world to create thriving oceans that provide more fish in the water, more food on the plate and thriving fishing communities.

    Follow us on Twitter

    Join us on Facebook

  • Categories

  • Get blog posts by email

    Subscribe via RSS

  • Comments Policy

    We reserve the right to modify or delete any comments that we deem as inappropriate.