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Animal Sciences

University of Wisconsin Milwaukee

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Assessing The Trophic Positions Of Lake Michigan Fishes Using Stable Carbon And Nitrogen Isotopes, Benjamin Alan Turschak Aug 2021

Assessing The Trophic Positions Of Lake Michigan Fishes Using Stable Carbon And Nitrogen Isotopes, Benjamin Alan Turschak

Theses and Dissertations

Lake Michigan is the second largest Laurentian Great Lake and is characterized by broad spatiotemporal variation in ecosystem processes such as nutrient cycling and energy flow. Variation in ecosystem processes—such as those induced by invasive dreissenid mussels—and subsequent changes in the spatiotemporal distribution of resources (i.e. prey or habitat) has resulted in major changes in Lake Michigan’s fish community. The ability of fish species to cope with spatiotemporal resource dynamics is at least partially dependent on their ability to shift apparent trophic position along various resource gradients. The objectives of this research were to quantify trophic positions of Lake Michigan …

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The Centipede Lithobius Celer (Chilopoda: Lithobiidae) In Wisconsin, Dreux J. Watermolen Oct 1996

The Centipede Lithobius Celer (Chilopoda: Lithobiidae) In Wisconsin, Dreux J. Watermolen

Field Station Bulletins

The centipede Lithobius celer Bollman 1888 has been reported from Wisconsin only one time. Chamberlin (1911) provisionally referred specimens collected from unspecified Wisconsin and Michigan localities to this species, with considerable doubt since neither was a ''fully-grown male/' Subsequent investigators (e.g., Matthews 1935, Crabill 1958) did not report L. celer from the state. While examining specimens collected as part of an on-going prairie ecology study, I discovered a L. celer specimen from southern Wisconsin. The specimen was collected in a pitfall trap at Hawkhill Prairie, Dane County (T9N, R8E, Sec. 5) on 21 August 1986 by A. Lisken.

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Seasonal Changes And Overwintering Of Endoparasites In The Bat (Myotis Lucifugus) In A Southeastern Wisconsin Hibernaculum, James R. Coggins Oct 1984

Seasonal Changes And Overwintering Of Endoparasites In The Bat (Myotis Lucifugus) In A Southeastern Wisconsin Hibernaculum, James R. Coggins

Field Station Bulletins

Eight digenetic trematode species (Phylum Platyhelminthes, Subclass Digena), one cestode species (Phylum Platyhelminthes, Class Cestoidea) and three nematode species (Phylum Nematoda) were recovered from the little brown bat, Myotis lucifugus, at the Neda Mine hibernaculum in southeastern Wisconsin. Bats displayed a rich and diverse helminth fauna throughout the year. Statistically significant seasonal variation was observed for two digenetic trematodes. Mean intensities and prevalence of parasites were highest in autumn and spring and lowest in summer. Highest species diversity occurred in autumn. Greater intensity and prevalence in autumn and spring were correlated with bat swarming and emergence patterns, behavioral phenomena which …

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Research In Plant Ecology At Uwm - 1965 To 1984, Forest Stearns Oct 1984

Research In Plant Ecology At Uwm - 1965 To 1984, Forest Stearns

Field Station Bulletins

Ecological research on plants and plant communities has been an active program at UWM, Involving several faculty, many undergraduate and graduate students and the UWM Field Station. Aquatic and urban environments, forests and wetlands have received most attention although prairie and landscape ecology and endangered species have not been neglected. Descriptive, theoretical and applied studies are Included spanning the spectrum from the autecology of a single species to examination of entire landscapes. Over the period of 20 years, 54 M.S. theses, nine Ph.D. dissertations and numerous published papers and reports have resulted. University-sponsored research serves several purposes: discovery of new …

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Ecological Studies Of The Surface Microlayer Of Small Ponds At The Uwm Field Station, Charles C. Remsen, James S. Maki, Savas C. Danos, Kenneth E. Estep Oct 1983

Ecological Studies Of The Surface Microlayer Of Small Ponds At The Uwm Field Station, Charles C. Remsen, James S. Maki, Savas C. Danos, Kenneth E. Estep

Field Station Bulletins

The seasonal variation and enrichment of nutrients, pigments, bacteria, fungi and algae in the surface microlayer and subsurface waters were investigated in three ponds at the University of Wisconsin-Milwaukee Field Station, Saukville, Ozaukee County, Wisconsin. Samples were collected intermittently from June, 1978 through October, 1981. Microlayer samples were collected using a glass plate and a screen sampler. All ponds showed dramatic seasonal variations in nutrients, microorganisms and algae in both surface and subsurface waters. The data indicate that physical factors such as adsubble processes, antirain and atmospheric deposition, along with biological factors such as heterotrophic mineralization and autotrophic uptake, play …

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The Ecology Of A Moth Associated With The Northern Pitcher Plant (Sarracenia Purpurea), Glenn R. Guntenspergen, Charles R. Rupprecht Apr 1983

The Ecology Of A Moth Associated With The Northern Pitcher Plant (Sarracenia Purpurea), Glenn R. Guntenspergen, Charles R. Rupprecht

Field Station Bulletins

Endothenia daeckeana Krft. is an obligate associate of S. purpurea L. in Wisconsin. This paper presents a preliminary analysis of the ecological relationship between this moth and its host plant.

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A Study Of A Population Of The Slender Glass Lizard In Waushara Co., Wisconsin, Thomas A. Pleyte Oct 1976

A Study Of A Population Of The Slender Glass Lizard In Waushara Co., Wisconsin, Thomas A. Pleyte

Field Station Bulletins

The slender glass lizard (Ophisaurus attenuatus), a limbless member of the family Anguinidae, is one of the few lizards found in the state of Wisconsin. Records indicate that it is found locally in several sandy areas in the southern half of the state but little was known about its abundance in any of these areas before the present study was conducted in 1973 and 1974.

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A Study Of Aquatic Hyphomycetes Of Southeastern Wisconsin, John W. Baxter, Juanita Bronaugh Apr 1974

A Study Of Aquatic Hyphomycetes Of Southeastern Wisconsin, John W. Baxter, Juanita Bronaugh

Field Station Bulletins

This paper presents a portion of the results of a distributional and ecological study of aquatic Hyphomycetes in seven counties of southeastern Wisconsin. Results of the water chemistry studies and laboratory studies on the physiology of these fungi will be published separately in Mycopathologia et Mycologia Applicata. Part of this research was supported by a grant from the Graduate Faculty Research Committee. In the present investigation 28 species, representing 21 genera, were found growing on submerged decaying leaves in streams, lakes and bogs. Three previously undescribed species were found as loose spores in foam samples from Cedar Creek and Sauk …

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Small Mammals At The Field Station, Donald Morzenti Apr 1969

Small Mammals At The Field Station, Donald Morzenti

Field Station Bulletins

Ecological studies of small mammals are undertaken for a variety of reasons. Some investigations are conducted to determine their economic relationship to man, since small mammals directly affect his welfare through transmission of diseases and parasites and through destruction of crops, orchards, and forest seedlings. Much research, however, is basic in nature. The primary objectives of such research are to aid in man's quest for knowledge concerning the distributional and population aspects of small mammals. During the summer of 1968, an intensive live-trapping program was begun to determine the status of small mammals, primarily mice and shrews, among the various …

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