Life Sciences Commons^™

Vascular Plants Near The Margins Of Their Range In Cedarburg Bog. Part 1. Gymnosperms And Monocots, James A. Reinartz, Gay E. Reinartz

Field Station Bulletins

Marginal populations are those located at the extreme or periphery of a species' range. In the context of this paper, marginal populations refer to a geographical periphery rather than to possible ecological margins. A wide ranging species may be composed of several different varieties or ecotypes. Marginal populations of plants are of special interest to plant taxonomists, ecologists, ecological geneticists and biogeographers because they may exhibit different characteristics than more centrally located populations. This is likely because plants at the boundaries of their species' range may experience extreme ecological conditions beyond which they cannot survive.

Aquatic Oligochaeta Of Mud Lake, And Its Inlet And Outlet Stream, Michael E. Smith, Jerry L. Kaster

Field Station Bulletins

Aquatic invertebrates of Wisconsin have been studied extensively, but until recently, little work has been done with aquatic oligochaetes (segmented worms). Much of the previous work was primarily concerned with the tubificid fauna of the Great Lakes (Hiltunen 1961; Howmiller 1972; Howmiller and Beeton 1910; Spencer 1980). Also, Howmiller (1914) described the aquatic Oligochaeta found in the inland waters of Wisconsin, and Howmiller and Loden (1916) provided additional information which contains the most current list of species found in Wisconsin. A study was carried out during May and June 1980 at the University of Wisconsin - Milwaukee Field Station to …

Patterns Of Seedling Establishment In An Old Field, Patrick O'Donnell, Forest Stearns

Field Station Bulletins

Within 100 years after settlement began (ca. 1830), most forest land in the Milwaukee area had been influenced by agriculture. When the land was cleared for cultivation, trees were occasionally left along property boundaries, on steep slopes or in depressions. These trees served to shade the farmer and his livestock and break the wind. Beginning in the 1930's, urbanization and other changes in land use have resulted in abandonment of cultivated fields and pastures and their regrowth to forest or conversion to other uses. The isolated trees provided a continuing source of tree seed. The presence of an isolated tree …

Decay Rates And Nutrient Dynamics In Confines And Nonconfined Leaf Litter In The Great Dismal Swamp, R. Frederick K. Yates

Biological Sciences Theses & Dissertations

This study was designed to quantitatively compare decay rates and nutrient dynamics by the confined and unconfined litter techniques in a seasonally flooded swamp. In this study both methods indicated the same order of decay rates among sites (cedar>maple-gum>cypress> mixed hardwood), but the unconfined method showed faster decay rates at all sites. As in two years of previous data collection, the stands exhibiting some seasonal flooding showed greater decay rates than the mixed hardwood stand which was not inundated. Nutrient dynamics were not different between litter bag and leaf pack methods.

This study included a preliminary investigation of …

Preliminary Critical Area Survey Of The Appalachian Trail In Maine, Critical Areas Program (Maine)

Maine Collection

Preliminary Critical Area Survey of the Appalachian Trail in Maine.
Critical Areas Program - Natural Resource Planning Division - Maine State Planning Office (June 1981).

Rare Vascular Plants Of Maine : A Critical Areas Program Report, Susan C. Gawler, L. M. Eastman

Maine Collection

Rare Vascular Plants of Maine : A Critical Areas Program Report

Based on Rare Vascular Maine Plants (1978) with Additional Herbarium Data and Rare Plants Information by L.M. Eastman.

Introduction, Criteria, Annotated Rare Plant List, Species Accounts, Additional Herbarium Data, County & Town Index Editing by Susan C. Gawler.

Executive Department, State Planning Office, 189 State Street, Augusta, Maine, 04333 (June 1981).

Contents: Acknowledgements / List of Tables / List of Figures / Part One: Introduction / Part Two: List of the Rare Vascular Plants of Maine / Part Three: Species Accounts / Part Four: Subspecific Taxa / Appendices / …

Vegetation Responses To Prescribed Burning In A Mixed-Conifer Woodland, Cuyamaca Rancho State Park, California, Bradford D. Martin

Loma Linda University Electronic Theses, Dissertations & Projects

This study reports the results of light intensity prescribed burning on the vegetation of 3 jeffrey pine-black oak woodland sites in Cuyamaca Rancho State Park, California. The 1.2 ha, 85 ha, and 6 ha burn plots were measured for tree and shrub density and basal area 6 months, 1% years, and 2 years following burning for the 3 sites respectively. Each burn site measured was compared against equivalent unburned control plots to help assess the effects of the burning. Density of saplings, seedlings, and herbaceous vegetation was also determined for the woodland understories. Dominance and relative dominance of herbaceous ground …

Microorganisms In Milwaukee Rivers, Joseph Gergerich, Forest Stearns

Field Station Bulletins

Fecal coliform bacteria have long been used as indicators of water pollution (Standard Methods, 1976). However, factors that influence the coliform population in natural water bodies may alter the relationships between the coliform bacteria and fecal pollution and hence the usefulness of the organisims as indicators. This study examined the volunteer, non-native vegetation of urban Racine. Various sites were examined, some stable, others subject to continuous disturbance; plant communities were characterized and compared.

Microclimate Weather Data For 1978 And 1979 At The University Of Wisconsin-Milwaukee Field Station, Larry Smith, Steven Kroeger, Jim Reinartz

Field Station Bulletins

The UWM Field Station has measured precipitation, temperature, relative humidity, wind direction and speed, and barometric pressure continuously since December 29, 1969. These data were recorded at three weather stations each located within a different vegetation type all within 0.8 km of each other. The main station is located near the Field Station laboratory building in an open field. This station measures all of the above parameters. The two satellite stations, one in a beech-maple forest and the other in a tamarack-white cedar bog, measure precipitation, temperature, and relative humidity only. This paper summarizes and compares the data collected at …

Volunteer Urban Vegetation Of Racine, Wisconsin, Cecile Boehmer, Forest Stearns

Field Station Bulletins

We have only meagre knowledge of the composition and the functions performed by vegetation in Wisconsin cities. The records of the U.S. Government Land Survey conducted in the 1830s provide information on the presettlement vegetation. Likewise, the notes and letters of settlers and early residents speak of the plants they found here, or brought with them. We know less about the vegetation now growing in our cities.

Field Maps 1981, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files

Historical field map scans (1981) for the permanent 100m x 105m research plot in Hueston Woods State Nature Preserve.

Maps were digitized in 2022.