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dc.contributor.authorPizza, Riley
dc.descriptionv, 40 p.en_US
dc.description.abstractCirsium pitcheri (Torr. Ex Eaton), or Pitcher's thistle, has been identified as a federally threatened species since 1998. While several projects have successfully reintroduced greenhouse-grown plants, less research has focused on reintroduction of this species through seed. In this study, I attempt reintroduction from seed, and provide evidence showing how these efforts may be optimized to promote seedling germination and survival. Pitcher's thistle seeds were planted in the West Beach of the Indiana Dunes National Lakeshore, Indiana. Seedling emergence and size were studied for fourteen weeks, along with soil moisture, soil temperature, slope, sand burial, and elevation. Seeds germinated throughout the Spring in all subplots, confirming successful planting methods. Seeds in south-facing subplots germinated at higher rates at the start of the study, but also had the lowest survival rates. North-facing subplots had higher germination rates later in the study and a higher survival rate, with both being attributed to cooler sand temperatures and higher soil moisture. Seedling survival was also significantly higher in subplots furthest from the lake. These data suggest that seeds should be planted on north-facing slopes and far from the lakeshore to have the best microclimate to favor seedling germination and survival.en_US
dc.publisherKalamazoo Collegeen_US
dc.relation.ispartofKalamazoo College Biology Senior Individualized Projects Collection
dc.rightsU.S. copyright laws protect this material. Commercial use or distribution of this material is not permitted without prior written permission of the copyright holder.
dc.titleMicroclimate Effects on the Germination of Pitcher's thistle (Cirsium pilcheri)en_US
KCollege.Access.ContactIf you are not a current Kalamazoo College student, faculty, or staff member, email to request access to this thesis.

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  • Biology Senior Individualized Projects [1520]
    This collection includes Senior Individualized Projects (SIP's) completed in the Biology Department. Abstracts are generally available to the public, but PDF files are available only to current Kalamazoo College students, faculty, and staff.

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