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An application of the lottery competition model to a montane rainforest community of two canopy trees, ohia (Metrosideros polymorpha) and koa (Acacia koa) on Mauna Loa, Hawaii

Bulletin of the Ecological Society of America

1992 Annual Meeting of the Ecological Society of America, Honolulu, Hawaii, August 9-13, 1992
By:
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Abstract

This rainforest occurs on Mauna Loa at 1500-2000 m elevation. Earthwatch volunteers, studying the habitat of 8 native forest bird species (3 endangered), identified 2382 living canopy trees, and 99 dead trees, on 68 study plots, 400 m2 each. Ohia made up 88% of the canopy; koa was 12%. The two-species lottery competition model, a stochastic model in which coexistence of species results from variation in recruitment and death rates, predicts a quadratic-beta distribution for the proportion of space occupied by one species. A discrete version was fit to the live tree data and a likelihood ratio test (p=0.02) was used to test if the mean death rates were equal. This test was corroborated by a contingency table analysis (p=0.03) based on dead trees. Parameter estimates from the two analyses were similar.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
An application of the lottery competition model to a montane rainforest community of two canopy trees, ohia (Metrosideros polymorpha) and koa (Acacia koa) on Mauna Loa, Hawaii
Series title:
Bulletin of the Ecological Society of America
Volume
73
Issue:
2 Suppl.
Year Published:
1992
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
202-203 (abstract)
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
202
Last page:
203(abs)
Number of Pages:
-201