Morton Arboretum : Search Objects :

Presentation of $8,000 check to The Morton Arboretum from Chevron Corporation (3.4063)

Date: April 1992
Type: Photographic image
Description:Presentation of $8,000 check to The Morton Arboretum from Chevron Corporation, for subsidizing a paper on restoration of ecosystems for Cambridge University Press by Arboretum researchers, Christopher Whelan and Marlin Bowles
(L to R): Dr. Gerry Donnelly, Patrick Y. O'Brien (Coordinator for Chevron, Ecological Services and Conservation Health Environment and Loss Prevention)
Extent: 1 photograph

Research staff group shot in Research Building - (Seated L to R): Bill Hess, Marlin Bowles (Standing L to R): Fay Wheatman, Chris Whelan, Gary Watson, Kim Allen (3.4498)

Type: Photographic image
Description:Research staff group shot in Research Building - (Seated L to R): Bill Hess, Marlin Bowles (Standing L to R): Fay Wheatman, Chris Whelan, Gary Watson, Kim Allen
Extent: 1 photograph

George Ware receiving Chevron Co. check for $8,000 supporting paper by Chris Whelan and Marlin Bowles (3.5216)

Type: Photographic image
Description:George Ware receiving Chevron Co. check for $8,000 supporting paper by Chris Whelan and Marlin Bowles
Extent: 1 photograph

A Grading Plan for the Cactus Pit [including proposed location of plant habitats] (3.6099)

Date: 1989
Creator: Tyznik, Anthony
Type: Map
Description:This plan modified somewhat during final grading for the Endangered Species Habitat located to the east of Meadow Lake.
Colored shading on this copy indicates proposed locations of plant habitats/communities as determined by Marlin Bowles.
Extent: 1 sheet

Endangered Species Habitat (3.6177)

Date: March 26 1992
Creator: Tyznik, Anthony
Type: Map
Description:Layout of habitat with elevations
Extent: 1 sheet

American Hazelnut: An Overlooked Native Shrub in Northeastern Illinois (3.11074)

Date: September 21 – December 20 1994
Creator: Bowles, Marlin L.
Type: Article

Landscape pattern and structure of oak savanna, woodland, and barrens in Northeastern Illinois at the time of European settlement (3.31525)

Date: October 15 – 16 1994
Creator: Bowles, Marlin L.
Type: Article

Clonal Population Structure of the Federal Threatened Mead's Milkweed, as Determined by RAPD Analysis, and its Conservation Implications (3.31532)

Date: 2002
Creator: Bowles, Marlin L.
Type: Article

Undated: Jeff Mengler to George Ware et al. (3.37832)

Creator: Mengler, Jeff
Type: Document
Description:Arboretum memo from Jeff Mengler to George Ware, Marlin Bowles, Kris Bachtell, Joe Larkin, Marion Hall, and Floyd Swink about the delivery of a report concerning findings from a seed bank study that was part of the Des Plaines River Wetland Demonstration project.
Extent: 1 sheet

Research Department Computer Software and Hardware Sharing Requirements (3.39927)

Date: October 10 1990
Type: Document
Description:A series of 12 documents outlining existing computer equipment and an explanation of information needs, desired software, hardware, and applications within the Arboretum's Research Department for Marlin Bowles, Webb Crowley, Tom Green, Richard Hootman, Patrick Kelsey, Elizabeth Shimp, Mike Spravka, Gary Watson, Fay Wheatman, Chris Whelan, Gerould Wilhelm, and Linda Wetstein.
Extent: 12 sheets

Flatwoods Tree Cores (3.44161)

Date: 1997 – 1998
Creator: Bowles, Marlin L.
Type: Dataset
Description:The dataset includes tree ring measurements from approximately 256 trees in the Chicago region.

Chronological Change in Old-Growth Forests of the Chicago Region (3.44163)

Date: 1997 – 1998
Creator: Bowles, Marlin L.
Type: Dataset
Description:Approximately 600 tree cores were collected from 24 forest stands and 4 savanna stands in the area around Chicago, Ill. Tree rings were measured using a stereo microscope on a VELMEX unislide stage, ACU-RITE linear encoder and Quick-check digital readout before being digitally processed using MeasureJ2X software. Protocols can be found in Bowles and Jones, 2008 (see below).

Grassland-forest transition in the Prairie Peninsula region of northwest Indiana as recorded by the US Public Land Survey (1829-1835) (3.54103)

Date: 2015
Creator: Bowles, Marlin L.
Type: Article

Long-term changes in Chicago region prairie vegetation in relation to fire management (3.55248)

Date: 2004
Creator: Bowles, Marlin L., Jones, Mike
Type: Article

Protocorm mycobionts of the federally threatened eastern prairie fringed orchid, Platanthera leucophaea (Nutt.) Lindley, and a technique to prompt leaf elongation in seedlings (3.55251)

Date: 2005
Creator: Bowles, Marlin L., Bell, Timothy J.
Type: Article

Relationships among environmental factors, vegetation zones, and species richness in a North American Calcareous prairie fen (3.55252)

Date: 2005
Creator: Bowles, Marlin L., McBride, Jenny
Type: Article

Relationships between soil characteristics, distribution and restoration potential of the federal threatened eastern prairie fringed orchid, Platanthera leucophaea (Nutt.) Lindl. (3.55253)

Date: 2005
Creator: Bowles, Marlin L., Bell, Timothy J.
Type: Article

Temporal instability in Chicago's upland old growth forests (3.55254)

Date: 2005
Creator: Bowles, Marlin L., Jones, Mike, McBride, Jenny, Bell, Timothy J., Dunn, Christopher P., Burke, Christopher B.
Type: Article

Testing the efficacy of species richness and floristic quality assessment of quality, temporal change, and fire effects in tallgrass prairie natural areas (3.55261)

Date: 2006
Creator: Bowles, Marlin L., Jones, Mike
Type: Article

Gradient analysis of an eastern sand savanna's woody vegetation, and its long-term responses to restored fire processes (3.55278)

Date: 2008
Creator: Bowles, Marlin L., Apfelbaum, Stephen I.
Type: Article

Canopy cover and groundlayer vegetation dynamics in a fire managed eastern sand savanna (3.55300)

Date: 2011
Creator: Bowles, Marlin L., Apfelbaum, Stephen I.
Type: Article

Effects of soil disturbance on success of a rare savanna forb, Liatris scariosa var. nieuwlandii in habitats dominated by early and late successional grass (3.55309)

Date: 2012
Creator: Bell, Timothy J., Bowles, Marlin L.
Type: Article

Matrix population models from 20 studies of perennial plant populations (3.55312)

Date: 2012
Creator: Bell, Timothy J., Bowles, Marlin L.
Type: Article

Next 36

Filter by

has image

object type

century

decade

year

person

language

collection

Subject/Keyword

Objects (128 results)