Broad Temporal Scales

Succession. Shifts in salinity in systems over longer time-scales may in part be driven by succession and also play a part in succession. For example, in disturbed or newly created salt marshes, the first colonizers, consisting only of salt-tolerant species, may shade (e.g., annual succulents)

or rework (e.g., rove beetles, burrowing crabs) the substrate surface, reducing evaporation and moderating salinity. Subsequent species may need to be less salt tolerant. As cover of the substrate increases, salinity is further reduced and buffered from dramatic fluctuations.

Decadal and longer. Longer-term fluctuations in the environment and climate may lead to alteration of salinity patterns. For example, the El NiƱo/Southern Oscillation (ENSO) events can alter patterns of precipitation and current flow, with cascading effects on salinity patterns worldwide. Over geologic timescales, alterations in aquatic salinity patterns have been profound, coupled with changes in oceanic circulation, glaciation and deglaciation, etc., with all of the potential ecological consequences of altered salinity on a global scale.

Was this article helpful?

0 0
Project Earth Conservation

Project Earth Conservation

Get All The Support And Guidance You Need To Be A Success At Helping Save The Earth. This Book Is One Of The Most Valuable Resources In The World When It Comes To How To Recycle to Create a Better Future for Our Children.

Get My Free Ebook

Post a comment