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dc.contributor.advisor Harcombe, Paul A.
dc.creatorLin, Jie
dc.date.accessioned 2009-06-04T07:58:36Z
dc.date.available 2009-06-04T07:58:36Z
dc.date.issued 1999
dc.identifier.citation Lin, Jie. "Testing two measures of shade tolerance in a mesic forest in southeast Texas." (1999) Master’s Thesis, Rice University. http://hdl.handle.net/1911/17281.
dc.identifier.urihttp://hdl.handle.net/1911/17281
dc.description.abstract I used sapling demographic data to investigate the relationship between shade tolerance and parameter estimates of a mortality-growth model and a height-diameter model. The study site is at Wier Woods, a mesic forest in southeast Texas. The results show that species order for probability of mortality at zero growth corresponds closely to the standard shade tolerance classification: the probability of mortality at zero growth decreases as shade tolerance rank increases. Also, the probability of mortality decreases rapidly as growth increases for shade-intolerant species, while showing little variation for shade-tolerant species. Therefore, this study provides strong support for the assertion that the mortality-growth relationship is a key life-history characteristic that determines shade tolerance. The results of a linear regression of height against DBH show that shade-intolerant species have steeper slopes than shade-tolerant species. This implies that a trade-off of photosynthate allocation between height growth and diameter growth may be an additional mechanism that influences shade tolerance.
dc.format.extent 116 p.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectBotany
Ecology
dc.title Testing two measures of shade tolerance in a mesic forest in southeast Texas
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Ecology and Evolutionary Biology
thesis.degree.discipline Natural Sciences
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Arts


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