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Full-Text Articles in Life Sciences
The Seasonal Dietary Variation Of The Brook Stickleback (Eucalia Inconsians) In A Southeastern Wisconsin Stream, Roger Hlavek
The Seasonal Dietary Variation Of The Brook Stickleback (Eucalia Inconsians) In A Southeastern Wisconsin Stream, Roger Hlavek
Field Station Bulletins
The inter-relationship between predator and prey is often influenced by the season of the year. This concept has been noted by Hynes (1950) in two species of sticklebacks in England, Gasterosteus aculeatus, and Pygosteus pungitius, while Winn (1960) has reviewed the overall biology of the brook stickleback in Michigan streams. The present study has been undertaken to investigate the seasonal variations in diet exhibited by the brook stickleback.
Some Observations On Corticolous Cryptogams, William J. Woelkerling
Some Observations On Corticolous Cryptogams, William J. Woelkerling
Field Station Bulletins
The reliability of direction finding, as stated in the old adage-"moss grows best on the north sides of trees"-is subject to various interpretations. A personal evaluation of the reliability of this adage was attempted in a study of the corticolous cryptogams (non-seed plants which grow on the bark of trees) at The University of Wisconsin-Milwaukee Cedar-Sauk Field Station and adjacent Cedarburg Bog. In this study the trees were inspected not only for the presence of the true mosses but also for algae, fungi, lichens and liverworts. The results summarized in this report are based on observations of over 2000 separate …
Distribution Of Ferns In The Maple-Beech Forest At The Cedar-Sauk Field Station, Theodore E. Carlsen
Distribution Of Ferns In The Maple-Beech Forest At The Cedar-Sauk Field Station, Theodore E. Carlsen
Field Station Bulletins
This report is another in a series of plant studies under investigation at the UWM Cedar-Sauk Field Station. Most of the previous studies were concerned with seed plants and only limited attention was given to the fern flora. In this study, carried out chiefly in the summer of 1970, the fern species were evaluated to determine their importance, distribution and ecological relationships in the maple-beech forest.
Productivity Of An Urban Park, Mary Herte, Nic Kobriger, Forest Stearns
Productivity Of An Urban Park, Mary Herte, Nic Kobriger, Forest Stearns
Field Station Bulletins
We have moderately good knowledge of the yields of crops and of commercial forest land. In contrast, little is known of the productivity of urban park areas. Parks are neither grassland nor forest-in structure they most closely resemble savanna, i.e., grassland spotted with trees bearing large crowns. How much energy is trapped by these communities? How much oxygen is liberated? What are the water requirements and recharge potentials of such areas? How can vegetation be best managed to promote the aesthetic and recreational needs of the urban citizen-and at the same time maintain its vital function as a living filter? …
Change In The Urban-Rural Ecotone, Paul E. Matthiae
Change In The Urban-Rural Ecotone, Paul E. Matthiae
Field Station Bulletins
Conversion of the rural Wisconsin landscape from farms to housing poses serious wildlife management and utilization problems. The problems are aggravated by the unregulated and unplanned nature of the land use changes. Purchase of farms for future development often results in removal of the entire farm from crop production. Occasionally the choicest tillable acres are rented or leased to a neighboring farmer, but even so, the remaining land is allowed to lie fallow and undergo old field succession. In a few cases pine plantations or wildlife food patches may be established or a pond constructed.
Dogwoods In Wisconsin, Peter J. Salamun
Dogwoods In Wisconsin, Peter J. Salamun
Field Station Bulletins
Many persons who have taken early spring trips to the southern and southeastern sections of our country frequently remark about the attractiveness of the Flowering Dogwood (Cornus florida L.) which they observed in the woodlands of this area. They also ask why this small tree does not grow in Wisconsin. According to the publication, "Growing the Flowering Dogwood" (USDA, 1970), this plant cannot be successfully grown where the winter temperatures go below -15°F; therefore, it is not considered hardy in our climate. We can take some solace, however, because there are a number of attractive native dogwoods which bloom in …
Mycological Research At The Field Station, John Baxter
Mycological Research At The Field Station, John Baxter
Field Station Bulletins
During the past three years, several mycological research projects have been conducted partially at the Field Station or have used research material obtained at the Station. These include a study of cellulose-digesting fungi from soils of the area (Gatford, 1969), an investigation of lignin digestion by wood-rotting fungi collected at the Station (Flashinski, 1970), and life cycle studies of certain rust fungi of southeastern Wisconsin (Baxter, 1971). At the present time two new mycological research projects are being planned.
Population Dynamics Of The Black-Capped Chickadee, Charles M. Weise
Population Dynamics Of The Black-Capped Chickadee, Charles M. Weise
Field Station Bulletins
The Black-capped Chickadee is an abundant, familiar bird in Wisconsin, known to almost everyone. In summer it is widespread in nearly all kinds of woods, although it is more numerous in younger second-growth forests, swamp forests or along forest-edges than in mature climax types. In winter, it becomes more restricted to dense thickets, bogs or swamps, especially where conifers like cedars or hemlocks occur; however, it also congregates in large numbers in towns or suburban areas wherever it can find artificially provided food at bird-feeding table. ecology. Since 1968 we have been concentrating our efforts more and more on a …
Urban Botany - An Essay On Survival, Forest Stearns
Urban Botany - An Essay On Survival, Forest Stearns
Field Station Bulletins
Botany is today's most needed urban science. It deals with life and with objects which man can understand, for which he reaches and with which he feels comfortable. The technological and economic problems of the city are horrendous—transportation, waste disposal, air pollution, and housing to name a few.