Distortion of the Pyramid of Numbers in a Grassland Insect Community
- 20 May 1960
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 131 (3412), 1531-1532
- https://doi.org/10.1126/science.131.3412.1531
Abstract
An intermediate size class of the insect component of a natural community contained more individuals than did a small size class, altering the expected ecological pyramid of numbers. The anomaly resulted from the presence of an abundant immigrant species, and it is suggested that departures from the normal pyramid might, in general, imply external disturbance.This publication has 1 reference indexed in Scilit: