The Morton Arboretum Quarterly V. 02 No. 02 (3.34509)
Date: June 21 – September 20 1966Type: Serial
Description:
- Flowering Crabapples You Should Know (17-22)
- Tyrannopolis vs. A Place to Live: The First Oikos Conference (23-25)
- As Nature Shows Them (26-27)
- Pagoda Dogwood, Alternate-leaved Dogwood. Cornus alternifolia: Dogwood Family (Cornaceae) (28-29)
- Arboretum News and Notes/ Climatological Summary (30-32)
Extent: 16 pages
The Morton Arboretum Quarterly V. 06 No. 04 (3.34573)
Date: December 21 1970 – March 20 1971Type: Serial
Description:
- Mathematics, Ecology & A Piece Of Land: The Illusion Of Predictability (49-54)
- The Smoggy Crystal Ball (55-59)
- Chinese Chestnut, Castanea mollissima: Beech Family (Fagaceae) (60-61)
- Climatological Summary (62)
- Three-Year Index: 1968-1970, Volumes 4-6 (62-64)
Extent: 16 pages
The Morton Arboretum Quarterly V. 07 No. 04 (3.34576)
Date: December 21 1971 – March 20 1972Type: Serial
Description:
- Hemlock—Graceful Conifer (37-41)
- The Secret World of May Watts (42-44)
- Man and Nature (45-52)
- Climatological Summary (52)
Extent: 16 pages
Education charts: Washington, D.C. (3.34223)
Type: Photographic image
Description:An educational chart created by May T. Watts for The Morton Arboretum, depicting a Washington, D.C. association. A detailed illustration of a single tree leaf is positioned at the center of the chart, surrounded by four vingnettes showing additional flora and fauna found within the ecological community.
Header: WASHINGTON D.C.
Labels from top to bottom, left to right:
- moutain laurel
- purple mountain
- holly
- flying squirrel
- flowering dogwood / red-bud
Extent: 1 slide
Education charts: Canyon (3.34224)
Type: Photographic image
Description:An educational chart created by May T. Watts for The Morton Arboretum, depicting a rock canyon association. A detailed illustration of a single tree leaf is positioned at the center of the chart, surrounded by four vingnettes showing additional flora and fauna found within the ecological community.
Header: CANYON
Labels from top to bottom, left to right:
- mud-dauber wasp
- phoe[be]
- arbor- / vitae
- columbine
- garter snak[e]
Extent: 1 slide
Education charts: Flood Plain (3.34227)
Type: Photographic image
Description:An educational chart created by May T. Watts for The Morton Arboretum, depicting a flood plain association. A detailed illustration of a single tree leaf is positioned at the center of the chart, surrounded by four vingnettes showing additional flora and fauna found within the ecological community.
Header: FLOOD PLAIN
Labels from top to bottom, left to right:
- mourining cloak butt[erfly]
- great blue heron
- Ameri- / can / elm
- wild ginger
- raccoon
Extent: 1 slide
Education charts: Florida (3.34230)
Type: Photographic image
Description:An educational chart created by May T. Watts for The Morton Arboretum, depicting a Florida association. A detailed illustration of a single tree leaf is positioned at the center of the chart, surrounded by four vingnettes showing additional flora and fauna found within the ecological community.
Header: FLORIDA
Labels and image from top to bottom, left to right:
- water hyacinth
- American egret
- bald cypress
- alligator
- cabage palm / red maple
Extent: 1 slide
Education charts: Pacific Northwest (3.34231)
Type: Photographic image
Description:An educational chart created by May T. Watts for The Morton Arboretum, depicting a Pacific Northwest association. A detailed illustration of a single tree leaf is positioned at the center of the chart, surrounded by four vingnettes showing additional flora and fauna found within the ecological community.
Header: PACIFIC NORTHWEST
Labels and image from top to bottom, left to right:
- salal
- Canadian Jay
- Douglas Fir
- black-tailed deer
- redwood / western red cedar
Extent: 1 slide
Education charts: The Deep South (3.34232)
Type: Photographic image
Description:An educational chart created by May T. Watts for The Morton Arboretum, depicting a deep South association. A detailed illustration of a single tree leaf is positioned at the center of the chart, surrounded by four vingnettes showing additional flora and fauna found within the ecological community.
Header: THE DEEP SOUTH
Labels and image from top to bottom, left to right:
- azalea
- mocking bird
- sweet / gum
- opossum
- magnolia / live oak
Extent: 1 slide
Tree Growth Data (3.67114)
Date: 2019Type: Dataset
Description:Tropical rainforests provide a multitude of ecosystem services and hold a large role in the global carbon cycle, but they are currently under threat by deforestation and anthropogenic influences. Understanding factors that increase tree growth can help protect and conserve tropical ecosystems. The Earth Forest Fertilization Experiment (EFFEX) is a nitrogen (N) and phosphorus (P) nutrient addition experiment that has been conducted at EARTH University located in Guacimo, Limon, Costa Rica. It is a full factorial block setup with 24 plots that have been fertilized twice per year since 2007 and where a variety of biological parameters have been measured, including diameter at breast height (dbh) of all trees larger than 10cm dbh. Our study explores how the effects of chronic fertilization affect tree growth over a decade. We hypothesized that P treatment would result in increased mean growth rates because P is thought to be a limiting nutrient in lowland tropical rainforests. However, we found that there is not a significant effect of additional nutrient application and tree growth at the community level. This may be attributed to Liegis law of the minimum due to another limiting resource that is preventing an increase in biomass and primary productivity. At the species level, there was not a significant effect of additional nutrient application and tree growth for Pentaclethra macroloba. There was a significant effect of additional nutrient application of N and P separately for Socratea exorrhiza. Our results can be used to better understand resource limitation in tropical rainforests and competition between neighboring trees.