Life Sciences Commons^™

Repopulation Of Fishes In Riley Creek, Coles County, Illinois Following Nitrogen Fertilizer Pollution, Kim James Carney

Masters Theses

The repopulation of stream fishes was studied from 17 May 1979 to 25 October 1979 following a major kill (100% mortality) caused by nitrogen fertilizer pollution in Riley Creek, Coles County, Illinois. The extent of recovery was determined by comparing post-kill collections with pre-kill survey data that was collected on 25 October 1978.

Repopulation began six days after the abatement of the pollution source. It is suggested that the initial source of repopulation was from the nearest undamaged tributary. The first three reinhabitants in order of appearence were: stonerollers (Campostoma anomalum); creek chubs (Semotilus atromaculatus); and …

Dirofilaria Immitis In The Wild Canids Of Illinois, Thomas J. Kick

Masters Theses

The heartworm, Dirofilaria immitis, is widespread in dogs in North America and has been reported in wild canids in many states. This is a report of this parasite in hearts removed from coyote, red fox and gray fox carcasses collected in Illinois. A total of 415 coyotes had a significantly higher infection rate (23.6%) than 225 red foxes (3.6%) and 99 gray foxes (3.0%). Infection rates in red foxes and coyotes were significantly higher in or near the Wabash Border Natural Division along the eastern side of the state, suggesting a relationship between infection rates and this region. The …

A Study Of The Free-Floating Phytoplankton Of The Embarras River And Polecat Creek, Coles County, Il, Richard Gary Fried

Masters Theses

An investigation of 2 sites on the Embarras River and 1 site on Polecat Creek was undertaken for a one-year period. Special emphasis was given to phytoplankton species and to their seasonal variations. Approximately 170 species from 8 divisions of algae were encountered during the one-year period.

Temperature was found to have no direct correlation with algal periodicity.

Palmer's organic pollution genus index was applied to determine the approximate levels of organic pollution at all three sampling sites. Only one time during the year (10/1/79), did all three sites suggest high organic pollution.

Transeau's 6 ecological groups were used to …

Analyses Of Illinois Wild Turkey Habitat And April Foods, Kim D. Price

Masters Theses

A vegetative analysis of turkey habitat was conducted in Alexander, Jackson, Union, and Calhoun Counties, Illinois. From these studies it was determined that turkeys inhabit relatively open stands of timber with agricultural fields and forest clearings in close proximity. Species of Quercus comprise approximately 40% or more of the tree species sampled, with Q. alba, Q. rubra, and Q. velutina being the most dominant. Found growing in association with Quercus are species of Carya, Cornus florida, Acer saccharum, Sassafras albidum, Fraxinus americana, and Ulmus rubra, in varying concentrations. The examination of food …