Testing two measures of shade tolerance in a mesic forest in southeast Texas
| dc.contributor.advisor | Harcombe, Paul A. | en_US |
| dc.creator | Lin, Jie | en_US |
| dc.date.accessioned | 2009-06-04T07:58:36Z | en_US |
| dc.date.available | 2009-06-04T07:58:36Z | en_US |
| dc.date.issued | 1999 | en_US |
| 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. | en_US |
| dc.format.extent | 116 p. | en_US |
| dc.format.mimetype | application/pdf | en_US |
| dc.identifier.callno | THESIS ECOL. 1999 LIN | en_US |
| dc.identifier.citation | Lin, Jie. "Testing two measures of shade tolerance in a mesic forest in southeast Texas." (1999) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/17281">https://hdl.handle.net/1911/17281</a>. | en_US |
| dc.identifier.uri | https://hdl.handle.net/1911/17281 | en_US |
| dc.language.iso | eng | en_US |
| dc.rights | Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder. | en_US |
| dc.subject | Botany | en_US |
| dc.subject | Ecology | en_US |
| dc.title | Testing two measures of shade tolerance in a mesic forest in southeast Texas | en_US |
| dc.type | Thesis | en_US |
| dc.type.material | Text | en_US |
| thesis.degree.department | Ecology and Evolutionary Biology | en_US |
| thesis.degree.discipline | Natural Sciences | en_US |
| thesis.degree.grantor | Rice University | en_US |
| thesis.degree.level | Masters | en_US |
| thesis.degree.name | Master of Arts | en_US |
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