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oai:www.ideals.illinois.edu:2142/46885 2023-07-11 col_2142_14737 col_2142_5131 col_2142_27685 col_2142_97958 com_2142_690 com_2142_397 com_2142_5130 com_2142_10683 com_2142_8803

2013-12 2014-01-16T18:25:13Z Molano-Flores, Brenda Pearion, Michelle 2014-01-16T18:25:13Z 2014-01-16T18:25:13Z 2016-01-16T11:01:25Z 2013-12 Minuartia patula, slender sandwort (Caryophyllaceae), is a winter annual found in barrens, glades, rocky outcrops, and dolomite prairies of the eastern and central United States. This species is rare in Illinois, Indiana and Ohio; and vulnerable in Kentucky, Missouri, and Virginia. Though research on environmental pollution, seed germination, and allelopathic effects have been conducted for this species, little is known about its reprodcutive biology. For many rare plants a thorough understanding of their reproductive ecology is essential for the development of effective conservation strategies. In a two year study, I researched several aspects the reproductive ecology of Minuartia patula at five populations in northeastern Illinois. In particular, I asked three questions: 1) Can variation in population size of Minuartia patula be related to reproductive output or local weather patterns? 2) What can data regarding the reproductive ecology, including the breeding system, phenology, and pollinators tell us about M. patula? 3) Are there differences in fruit set, seed set and germination rates among populations of Minuartia patula? Based on caging studies, flower phenology and pollen to ovule ratio, M. patula can be considered a facultative autogamous species. Also, significant differences were found among populations of M. patula for fruit set, seed set, and seed germination. No correlation was found between population size and reproductive output or local weather data. Based on the findings of this study, habitat management recommedations have been made to increase reproductive success of Minuartia patula and the continuation of long-term population surveys was also recommended. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2013-12-13T14:01:58Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Pearion_Michelle.pdf: 2828045 bytes, checksum: 49286904cd2d0a81e5e4badec54321a1 (MD5) Pearion_Michelle.pdf: 2828141 bytes, checksum: 1f42e1715ce512fd78619d3a164cf728 (MD5) Made available in DSpace on 2014-01-16T18:25:13Z (GMT). No. of bitstreams: 2 Michelle_Pearion.pdf: 2182083 bytes, checksum: e101f2908057e51f3831857b426a07b8 (MD5) license.txt: 4066 bytes, checksum: 3c968080c75d1f37d7c22a6178519ae0 (MD5) Restriction data tranferred 2014-07-01T11:36:42-05:00 Original Data Group with Access Administrator Release Date: 2016-01-16 12:27:27 UTC Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Item marked as restricted to the 'Administrator' Group (id=1) by Seth Robbins (robbins.sd@gmail.com) on 2014-01-16T18:27:30Z Item is restricted until 2016-01-16T18:27:27Z Limited Restriction Lifted for Item 46904 on 2016-01-16T11:01:25Z. http://hdl.handle.net/2142/46885 en Copyright 2013 Michelle Pearion breeding system germination Minuartia phenology reproductive ecology The reproductive ecology of Minuartia patula Michx. Mattf. (Caryophyllaceae) text Natural Res & Env Sci 1875 Natural Res & Env Sciences 0190 University of Illinois at Urbana-Champaign Thesis M.S. MS:Nat Res Env Sci -UIUC 10KS0190MSU