| Publication Type: | Journal Article |
| Year of Publication: | 1993 |
| Authors: | S. M. Percival |
| Journal: | The Journal of Applied Ecology |
| Volume: | 30 |
| Pagination: | 437 |
| ISSN: | 00218901 |
| URL: | http://www.jstor.org/discover/10.2307/2404184?uid=3737592&uid=2134&uid=10740112&uid=44441&uid=2&uid=70&uid=3&uid=4876208&uid=76&uid=4881544&uid=60&sid=21102493427657 http://www.jstor.org/stable/2404184?origin=crossref |
| DOI: | 10.2307/2404184 |