Some problems in the quantitative ecology of bryophytes

Abstract

In seeking to understand the interdependence of variables in an ecosystem, the ecologist usually has no more than a spatial pattern of species from which to start (Scott, 1969a). From this pattern he has to deduce which species and which habitat factors are correlated, which are most important to the ecosystem, and which will best repay experimental investigation. For this initial step bryophyte-dominated communities, unduly neglected, have much to oifer, both for their own intrinsic interest and as model systems for investigation. They are compact enough to show pattern on several different scales within easy compass and they are virtually 2-dimensional. Lacking both widespread root-systems and effective cuticular control of transpiration, and with continual maintenance by unspecialised vegetative reproduction, their response to environmental factors, particularly light and humidity, is direct and immediate. Their diversity of pattern thus closely reflects diversity of the micro-environment. For subsequent experimentation. bryophytes have many advantages; small size. generally low light requirements. easy propagation. and a haploid vegetative phase. © 1971 Taylor & Francis Group, LLC.