We examined the relationship between pitcher characteristics and prey capture in three populations of the carnivorous plant <em>Sarracenia alata</em> Wood. The pitcher characteristics measured were nectar, coloration, and three indices of size. The indices of size (height, funnel diameter, and hood area) were highly correlated in all three populations. Pitcher size and mass of prey captured per day differed significantly among populations. Pitcher size was significantly positively related to total mass of prey capture per day, explaining 37-76% of the variation depending on the population. In one of the populations, nectar was also significantly related to prey capture per day. Further research is needed to determine whether the direct relationship between pitcher size and prey capture is due simply to a larger capture area in larger plants, a larger surface area of attractants such as nectar in larger plants, or both.
| Identifer | oai:union.ndltd.org:TCU/oai:etd.tcu.edu:etd-05032006-082018 |
| Date | 03 May 2006 |
| Creators | Green, Michelle Lynn |
| Contributors | John D Horner |
| Publisher | Texas Christian University |
| Source Sets | Texas Christian University |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf, application/msword |
| Source | http://etd.tcu.edu/etdfiles/available/etd-05032006-082018/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to TCU or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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