A neighborhood model of annual-plant interference.
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A neighborhood model of annual-plant interference. / Weiner, J.
I: Ecology, Bind 63, Nr. 5, 01.01.1982, s. 1237-1241.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - A neighborhood model of annual-plant interference.
AU - Weiner, J.
PY - 1982/1/1
Y1 - 1982/1/1
N2 - A model is constructed in which seed production by individual annual plants within a population is a function of the number and species of individuals within each of several concentric neighborhoods. The effect of increasing competition is to reduce seed production in a hyperbolic fashion, and the contribution of each individual to this effect is in inverse proportion to the square of its distance from the test individual. A simple monospecific version of this model was tested on populations of 2 annual knotweeds. A least-squares fit accounted for >80% of variation in seed production. This model provides an alternative to density in describing plant populations. A monospecific aggregated version can be seen as an extension of the inverse-yield law.-from Author
AB - A model is constructed in which seed production by individual annual plants within a population is a function of the number and species of individuals within each of several concentric neighborhoods. The effect of increasing competition is to reduce seed production in a hyperbolic fashion, and the contribution of each individual to this effect is in inverse proportion to the square of its distance from the test individual. A simple monospecific version of this model was tested on populations of 2 annual knotweeds. A least-squares fit accounted for >80% of variation in seed production. This model provides an alternative to density in describing plant populations. A monospecific aggregated version can be seen as an extension of the inverse-yield law.-from Author
UR - http://www.scopus.com/inward/record.url?scp=0020459107&partnerID=8YFLogxK
U2 - 10.2307/1938849
DO - 10.2307/1938849
M3 - Journal article
AN - SCOPUS:0020459107
VL - 63
SP - 1237
EP - 1241
JO - Ecology
JF - Ecology
SN - 0012-9658
IS - 5
ER -
ID: 224654228