Jonathan Payne, Stanford University, The sixth mass extinction in the oceans: a deep-time perspective

Friday, November 3, 2017

12:00 pm

Hopkins Marine Station, Boat Works Lecture Hall

Sponsored by:
Hopkins Marine Station

Has the sixth mass extinction event in Earth’s history already begun? If so, what lessons does the fossil record offer for how ecosystems will respond to massive loss of biodiversity? In this talk, I will compare the intensity and ecological selectivity of past mass extinction events to the current biodiversity crisis using a new database of animal sizes and ecological traits spanning both fossil and living species. Both on land and in the ocean, the strongly selective removal of large-bodied animals across many taxonomic groups is unique to the current diversity crisis and appears to be a unique signature of human influence on the biosphere. The geological record provides many past examples of climate warming, ocean acidification, and sea level change that can help to inform projections of future environmental conditions. However, it does not contain a biodiversity crisis with a similar pattern of extinction, adding to the challenge of forecasting future ecosystem function.

When:
Friday, November 3, 2017
12:00 pm – 1:00 pm
Where:
Hopkins Marine Station, Boat Works Lecture Hall
Admission:

open to public

Tags:

Lecture / Reading Science 

Audience:
General Public, Faculty/Staff, Students, Alumni/Friends
Contact:
831-655-6200
More info:
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