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Eastern Illinois University

1976

Ecology and Evolutionary Biology

Articles 1 - 7 of 7

Full-Text Articles in Life Sciences

The Effect Of Social Rank Of Male Swordtails (Xiphophorus Helleri) On Sexual Behavior, Janet N. Marum Jan 1976

The Effect Of Social Rank Of Male Swordtails (Xiphophorus Helleri) On Sexual Behavior, Janet N. Marum

Masters Theses

The relationship between social rank and sexual behavior of the male swordtail (Xiphophorus helleri) was studied. Initially three tanks were established with three males and two females in each. Social rank, aggressive and sexual levels were recorded by observation of the interactions which occurred in the tanks. A second series of observations were made with the fish regrouped according to their initial rank, that is, dominant males grouped together, middle ranking males together and the lowest ranking males together. Aggressive and sexual levels were the highest for the highest ranking males in all tanks and in both trials, …


Land Snail Diversity At Rocky Branch Nature Preserve, Clark County, Illinois, Daniel J. Mott Jan 1976

Land Snail Diversity At Rocky Branch Nature Preserve, Clark County, Illinois, Daniel J. Mott

Masters Theses

Terrestrial, shell-bearing gastropods were collected at Rocky Branch Nature Preserve, Clark County, Illinois. A total of three hundred nineteen specimens were collected representing five families and fifteen species. Two species of the family Endodontidae, eight species of the family Polygyridae, three species of the family Zonitidae, and one species in each of the families Pupillidae and Succineidae were collected.

In addition, an attempt was made to find the relationship between species diversity and dominant woody vegetation and soil quality. The land at Rocky Branch Nature Preserve ranges from lowland flood plain to high second growth forest. The dominant trees of …


An Ecological Study Of The Algal Potamoplankton Communities Upstream And Downstream From A Sanitary Landfill On Riley Creek, Coles County, Illinois, Larry W. Coutant Jan 1976

An Ecological Study Of The Algal Potamoplankton Communities Upstream And Downstream From A Sanitary Landfill On Riley Creek, Coles County, Illinois, Larry W. Coutant

Masters Theses

No abstract provided.


An Attempt To Find Auditory Communication In The Squirrel Monkey Via Cooperative Conditioning, Michael T. Bardo Jan 1976

An Attempt To Find Auditory Communication In The Squirrel Monkey Via Cooperative Conditioning, Michael T. Bardo

Masters Theses

No abstract provided.


Zooplankton Community Dynamics And Water Quality Of Polecat Creek, Coles County, Illinois, Spring, 1975, Carl Edward Baird Jan 1976

Zooplankton Community Dynamics And Water Quality Of Polecat Creek, Coles County, Illinois, Spring, 1975, Carl Edward Baird

Masters Theses

No abstract provided.


Ecological Comparisons Of Four Plethodontid Salamanders In A Ravine In West Central Indiana, Stephen L. Reinbold Jan 1976

Ecological Comparisons Of Four Plethodontid Salamanders In A Ravine In West Central Indiana, Stephen L. Reinbold

Masters Theses

No abstract provided.


Breeding Birds And Vegetation Of The Central Illinois Floodplain Forest, Daniel Edward Varland Jan 1976

Breeding Birds And Vegetation Of The Central Illinois Floodplain Forest, Daniel Edward Varland

Masters Theses

No abstract provided.