A 120-year record of resilience to environmental change in brachiopods

Cross, Emma L. and Harper, E. M. and Peck, Lloyd S. (2018) A 120-year record of resilience to environmental change in brachiopods. In: 2018 Ocean Sciences Meeting (OSM), Portland, Oregon, United States of America.

Full text not available from this repository.
Official URL: https://agu.confex.com/agu/os18/meetingapp.cgi/Pap...


The inability of organisms to cope in changing environments poses a major threat to their survival. Rising carbon dioxide concentrations, recently exceeding 400 µatm, are rapidly warming and acidifying our oceans. Current understanding of organism responses to this environmental phenomenon are based mainly on relatively short to medium-term laboratory and field experiments, which cannot evaluate the potential for long-term acclimation and adaptation, the processes identified as most important to confer resistance. Here, we present data from a novel approach that assess responses over a centennial timescale showing remarkable resilience to change in a species predicted to be vulnerable. Utilising museum collections allows the assessment of how organisms have coped with past environmental change. It also provides a historical reference for future climate change responses. We evaluated a unique specimen collection of a single species of brachiopod (Calloria inconspicua) collected every decade from 1900 to 2014 from one sampling site. The majority of brachiopod shell characteristics remained unchanged over the past century. One response, however, appears to reinforce their shell by constructing narrower punctae (shell perforations) and laying down more shell. This study indicates one of the most calcium carbonate dependent species globally to be highly resilient to environmental change over the last 120 years and provides a new insight for how similar species might react and possibly adapt to future change.

Item Type: Conference or Workshop Item (Paper)
Additional Information: co-sponsored by the American Geophysical Union (AGU), the Association for the Sciences of Limnology and Oceanography (ASLO), and The Oceanography Society (TOS)
Uncontrolled Keywords: 2018,
Subjects: 04 - Palaeobiology
Divisions: 04 - Palaeobiology
12 - PhD
Journal or Publication Title: Global Change Biology
Depositing User: Sarah Humbert
Date Deposited: 19 Feb 2018 11:31
Last Modified: 09 Jan 2019 13:23
URI: http://eprints.esc.cam.ac.uk/id/eprint/4106

Actions (login required)

View Item View Item

About cookies