dc.contributor.author |
Isaac, Bonnie L. |
en_US |
dc.contributor.author |
Youngstown State University. Dept. of Biology. |
en_US |
dc.date.accessioned |
2011-01-31T14:17:03Z |
|
dc.date.accessioned |
2019-09-08T02:31:17Z |
|
dc.date.available |
2011-01-31T14:17:03Z |
|
dc.date.available |
2019-09-08T02:31:17Z |
|
dc.date.created |
2000 |
en_US |
dc.date.issued |
2000 |
en_US |
dc.identifier |
47014579 |
en_US |
dc.identifier.other |
b18777752 |
en_US |
dc.identifier.uri |
http://jupiter.ysu.edu/record=b1877775 |
en_US |
dc.identifier.uri |
http://hdl.handle.net/1989/6130 |
|
dc.description |
viii, 105 leaves : ill., maps ; 29 cm. |
en_US |
dc.description |
Thesis (M.S.)--Youngstown State University, 2000. |
en_US |
dc.description |
Includes bibliographical references (leaves 50-54). |
en_US |
dc.description.abstract |
Prenanthes crepidinea Michaux is a herbaceous plant that is listed as a species of
special concern in eleven states. Since little is known of the natural history of this
species, a two-part study was conducted.
The first part was a phytogeographical study involving herbarium loans to
determine the current and historic distributions of the species. Ecological data were
gathered from the herbarium specimens. A literature search was done for information
reported about Prenanthes crepidinea to enhance the herbarium study. Micromorphology
of selected structures was investigated using scanning electron microscopy.
The second part of the study involved studying three extant sites in depth. This
involved developing a characteristic habitat description and a natural history for the
species. Soil associations, associated species, and pollinators were studied. Voucher
specimens for all associated species were collected and deposited in the Herbarium of
Youngstown State University (YUO).
This study was conducted in two field seasons, 1998-1999. The sites were chosen
the first year. The sites were visited on a biweekly basis to collect associated species and
track the phenology of Prenanthes crepidinea. The second season was used to ensure
that no associated species were overlooked due to unusual seasonal conditions in the first
season and soil samples were taken. At the end of the second season the associated
species lists and soil types found for the three sites were compared to determine if the
community components were uniform and predictable. |
en_US |
dc.description.statementofresponsibility |
by Bonnie L. Isaac. |
en_US |
dc.language.iso |
en_US |
en_US |
dc.relation.ispartofseries |
Master's Theses no. 0702 |
en_US |
dc.subject.classification |
Master's Theses no. 0702 |
en_US |
dc.subject.lcsh |
Compositae. |
en_US |
dc.title |
A phytogeographical and ecological study of prenanthes crepidinea michaux : (Asteraceae) / |
en_US |
dc.type |
Thesis |
en_US |