Now showing items 21-30 of 283
Field study of freshwater clams Pyganodon grandis, Lampsilis siliquoidea and Ligumia nasuta: habitat preference based on food abundance.
(2000)
The adaptationist paradigm leads us to believe that organisms have evolved adaptations to allow them to live in the environments in which they live. In this project, we ask whether or not organisms live in those environments ...
The effects of prey disturbance on the susceptibility of Zebra Mussels (Dreissena polymorpha) to predation.
(2005)
Dreissena polymorpha is an invasive mollusk in the freshwaters of eastern North America. Because of its abundance and its increased natural vulnerability to predation, Dreissena can be an important food source for predators. ...
The influence of calcium on the phenotypic plasticity of Campeloma decisum.
(2005)
Changes in an organisms development or morphology due to external biological and physical cues may be described as phenotypic plasticity. We hypothesized that snails, Campeloma decisum, would exhibit phenotypic plasticity ...
Genetic variation in the phenolic concentration and inducibility in explanding leaves of Populus tremuloides.
(2002)
The co-existence of plants and herbivores has resulted in various chemical and mechanical adaptations in plants. Phenolics form one of the largest groups of defensive chemical compunds and are ubiquitous among all plants. ...
The effect of water retention structures on the distribution and diversity of freshwater benthic macroinvertebrates in three northern Michigan streams.
(2004)
Disturbances, physical and biological, have been known to impact communities by killing or displacing organisms and/or changing their environment. The intermediate disturbance hypothesis proposes the idea that an intermediate ...
Effects of zebra mussel invasion on primary production and unionid mussel survival in Douglas Lake, Michigan.
(2006)
Douglas Lake, a northern Michigan kettle lake, was invaded by zebra mussels (Dreissena polymorpha) in 2001. We studied the effects of this invasion on primary production and native mussels (Unionidae). We analyzed the ...
Comparison of the planktonic diatom community and net diatom community of Neureclipsis crepuscularis.
(2003)
The caddisfly Neureclipsis crepuscularis (Polycentropodidae) filters the water column downstream of lake effluents. Although they are predaceous, algal communities commonly thrive on their nets. I analyzed the diatom ...
Opponent assessment during male-male competition in Calopteryx maculata.
(2004)
We examined the asymmetry in forewings and hindwings, the abdomen length, and the mass of male dark-winged damselflies (C. maculata) observed in competitive interactions. Results showed that the mass ratio of confrontational ...
Lancaster Lake Survey, Cheboygan County, Michigan.
(2002)
The survey of Lancaster Lake concluded that it is between a mesotrophic and eutrophic lake. By using the chemical and biotic data collected on July 6, 2002, the lake's watershed characteristics and tophic status were determined.
Birth of a species level key to filamentous algae blooming in later summer in the Maple River.
(2001)
My project for the last few weeks of the summer session of UMBS has been the development of a species level key to filamentous algae, specifically species blooming in the west branch of the Maple River, in order to increase ...