[NHCOLL-L:1891] Apologies for cross-posting on TAXACOM! DETAILS OF THE COLLECTION. University of Iowa Herbarium (IA): Endangered. Museum of Natural History: Threatened.
Diana Horton
diana-horton at uiowa.edu
Tue Apr 15 15:15:00 EDT 2003
THE COLLECTION
The University of Iowa Herbarium is larger than 92% of nearly 600 herbaria
in the United States (data from P. Holmgren, New York Botanical
Garden). It houses some 250,000 specimens of vascular plants, bryophytes
and plant fossils from all over the world, including the only major
collections of bryophytes and fossils in Iowa. With over 80,000 specimens
of mosses and hepatics, this bryophyte collection is nationally
significant. However, the heart of the collection is the nearly 75,000
Iowa specimens of vascular plants and bryophytes that establish it as a
regionally significant resource.
RESEARCH
- Publications/reports/creative works and theses
Approximately 100 publications/reports/creative works and 30 theses have
been based on IA specimens in the last 10 years.
- New site records
Since 1990, IA has documented at least 10 native vascular plant species
previously unrecorded from Iowa. Species believed extirpated have been
rediscovered and new localities for nationally threatened species have
been discovered. New county records are commonplace. Amazingly,
considering the agricultural devastation of this state, the remnant natural
habitats in eastern Iowa the hotspot of Iowa -- offer exciting
opportunities for additional discoveries.
DATABASE
Our current project is the Iowa Fragile Flora Inventory, a distributional
database for all Iowa plant species (ca. 2,000) that will be used to
generate county distribution maps on the web site. In fall 2002, four
undergraduates each volunteered an average of 4-6 hours/week extracting
collections data for that project. About 1/3 of the IA collections data
have been compiled in hard copy ready to be entered in the computer.
INSTRUCTION
- Undergraduate Instruction
The Herbarium is widely utilized for undergraduate instruction, with
anywhere from 250 to 400 students per year in 10 to 15 courses learning
about collections.
- Visits from local colleges
Classes from eastern Iowa colleges visit the Herbarium to learn about
collections and how they are utilized.
- Web site
The Herbarium web site serves as both an educational and outreach tool that
has averaged 4,000 Successful Requests for Pages and over 900 Distinct
Hosts Served per month since its inception in April 2002.
OUTREACH
- Mailing List
In 1998, the Iowa Native Plants Mailing (e-mail) List was established to
provide a forum for those interested in environmental and conservation
issues related to Iowa's natural vegetation and habitats, and there are
over 250 current subscribers.
- Web Site and Endangered Species
The web site serves as a vehicle to emphasize the vital role of collections
in developing endangered species lists, and provides extensive information
on Iowas endangered species legislation (see Iowas Fragile Flora). The
web site includes the Fragile Flora Database with all state listings of
rare plants since 1977.
- Book Based on IAs Collections
A recently published book, An Illustrated Guide to Iowa Prairie Plants by
Paul Christiansen and Mark Müller (1999, University of Iowa Press) is
comprised of illustrations and county dot maps based on University of Iowa
Herbarium specimens.
- Resource for Local botanists
Local botanists not affiliated with the university utilize the Herbarium
extensively as a resource for identifying collections made in connection
with inventories of state preserves for the Iowa State Preserves Advisory
Board, and as a repository for voucher specimens.
- Presentations about the Herbarium and Collections
Two presentations, Herbarium Specimens: A Vital Link to the Natural World,
and Iowas Fragile Flora, are utilized (Cedar Rapids Audubon Society, 2003;
Community College Biology Teachers annual meeting, 2002; Iowa Association
of Naturalists annual meeting; 2001; and Sierra Club Iowa Chapter, Central
Group meeting, 2001) to get the word out that collections in general and
those in this Herbarium in particular are a vital resource.
Diana Horton
Director and Curator, University of Iowa Herbarium
Associate Professor, Biological Sciences
312 CB
University of Iowa
Iowa City, IA 52242-1297
Ph.: 319-335-1320
E-mail: diana-horton at uiowa.edu
Herbarium web site: http://atmos.cgrer.uiowa.edu/herbarium
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