It welcomes manuscripts that develop new conceptual syntheses, especially those combining verbal or mathematical theory with new empirical information of general significance.
All articles appear with dates of submission and final acceptance.
Manuscripts that do not conform to the instructions given below may be returned to the authors for correction before consideration. Computer generated manuscripts must be of letter quality. No bound or double-sided manuscripts will be accepted. Authors should avoid jargon and excessive abbreviation. Material should conform to the Council of Biology Editors Style Manual, third edition.