Affiliation:
1. Department of Ecology and Evolutionary Biology, Princeton UniversityPrinceton, NJ 08544, USA
Abstract
Tree species differ from one another in, and display trade-offs among, a wide range of attributes, including canopy and understorey growth and mortality rates, fecundity, height and crown allometry, and crown transmissivity. But how does this variation affect the outcome of interspecific competition and hence community structure? We derive criteria for the outcome of competition among tree species competing for light, given their allometric and life-history parameters. These criteria are defined in terms of a new simple whole life-cycle measure of performance, which provides a simple way to organize and understand the many ways in which species differ. The general case, in which all parameters can differ between species, can produce coexistence, founder control or competitive exclusion: thus, competition for light need not be hierarchical as implied by
R
*
theory. The special case in which species differ only in crown transmissivity produces neutral dynamics. The special case in which species differ in all parameters except crown transmissivity gives hierarchical competition, where the equivalent of
R
*
is
, the height at which trees enter the canopy in an equilibrium monoculture.
Subject
General Agricultural and Biological Sciences,General Environmental Science,General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology,General Medicine
Reference44 articles.
1. Conundrums of competitive ability in plants: what to measure?
2. Adams T. P. 2006 Dynamics of temperate US forests: monocultures and invasion dynamics. Master's thesis University of York UK.
3. Anderson R.M& May R.M Infectious diseases of humans: dynamics and control. 1991 New York NY:Oxford University Press.
4. Advances in spatial, individual‐based modelling of forest dynamics
5. Causes and consequences of resource heterogeneity in forests: interspecific variation in light transmission by canopy trees
Cited by
51 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献