The University of Southampton
University of Southampton Institutional Repository

Five critical questions of scale for the coastal zone

Swaney, D.P., Humborg, C., Emeis, K., Kannen, A., Silvert, W., Tett, P., Pastres, R., Solidoro, C., Yamamuro, M., Hénocque, Y. and Nicholls, R.J. (2012) Five critical questions of scale for the coastal zone Estuarine, Coastal and Shelf Science, 96, pp. 9-21. (doi:10.1016/j.ecss.2011.04.010).

Record type: Article


Social and ecological systems around the world are becoming increasingly globalized. From the standpoint of understanding coastal ecosystem behavior, system boundaries are not sufficient to define causes of change. A flutter in the stock market in Tokyo or Hong Kong can affect salmon producers in Norway or farmers in Togo. The globalization of opportunistic species and the disempowerment of people trying to manage their own affairs on a local scale seem to coincide with the globalization of trade. Human-accelerated environmental change, including climate change, can exacerbate this sense of disenfranchisement. The structure and functioning of coastal ecosystems have been developed over thousands of years subject to environmental forces and constraints imposed mainly on local scales. However, phenomena that transcend these conventional scales have emerged with the explosion of human population, and especially with the rise of modern global culture. Here, we examine five broad questions of scale in the coastal zone:

(1) How big are coastal ecosystems and why should we care?

(2) Temporal scales of change in coastal waters and watersheds: can we detect shifting baselines due to economic development and other drivers?

(3) Are footprints more important than boundaries?

(4) What makes a decision big? The tyranny of small decisions in coastal regions.

(5) Scales of complexity in coastal waters: the simple, the complicated or the complex?

These questions do not have straightforward answers. There is no single “scale” for coastal ecosystems; their multiscale nature complicates our understanding and management of them. Coastal ecosystems depend on their watersheds as well as spatially-diffuse “footprints” associated with modern trade and material flows. Change occurs both rapidly and slowly on human time scales, and observing and responding to changes in coastal environments is a fundamental challenge. Apparently small human decisions collectively have potentially enormous consequences for coastal environmental quality, and our success in managing the effects of these decisions will determine the quality of life in the coastal zone in the 21st century and beyond. Vigilant monitoring, creative synthesis of information, and continued research will be necessary to properly understand and govern our coastal environments into the future.

Full text not available from this repository.

More information

Published date: 1 January 2012
Keywords: scale, coastal management, governance, fishery management, regime shift, biogeochemistry
Organisations: Energy & Climate Change Group


Local EPrints ID: 337092
ISSN: 0272-7714
PURE UUID: 8ca9a338-d287-46f3-84c5-bcce1d9bd356

Catalogue record

Date deposited: 18 Apr 2012 09:07
Last modified: 18 Jul 2017 06:04

Export record



Author: D.P. Swaney
Author: C. Humborg
Author: K. Emeis
Author: A. Kannen
Author: W. Silvert
Author: P. Tett
Author: R. Pastres
Author: C. Solidoro
Author: M. Yamamuro
Author: Y. Hénocque
Author: R.J. Nicholls

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.