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1975

Zoology

Masters Theses

Articles 1 - 4 of 4

Full-Text Articles in Life Sciences

Territory And Mating System In The Bobolink, Dolichonyx Oryzivorus, Arlo J. Raim Apr 1975

Territory And Mating System In The Bobolink, Dolichonyx Oryzivorus, Arlo J. Raim

Masters Theses

No abstract provided.


The Growth Of The Red-Ear Turtle Pseudemys Scripta Elegans In A Thermal Lake In Southwestern Illinois, Diana Avalos Jan 1975

The Growth Of The Red-Ear Turtle Pseudemys Scripta Elegans In A Thermal Lake In Southwestern Illinois, Diana Avalos

Masters Theses

No abstract provided.


The Histology Of The Pineal Gland In Odocoileus Virginianus, Terry Michael De Villiers Jan 1975

The Histology Of The Pineal Gland In Odocoileus Virginianus, Terry Michael De Villiers

Masters Theses

A total of 26 pineal glands from the white-tailed deer were histologically examined. Five different stains were utilized to determine various cell types present in pineal tissue. Connective tissue septa divide the pineal gland into incompletely separated lobules which are supplied by a very extensive vascular system. The pinealocyte is the most numerous cell in the gland and is most easily recognized by a prominent nucleus approximately 6-8 microns in diameter. The pinealocyte cytoplasm contains many minute granules. A distinct difference was noted in the histology of the oldest age deer pineal (age 7 years) when globular granules were observed …


The Status Of Beaver In East Central Illinois, Kenneth Edward Snearley Jan 1975

The Status Of Beaver In East Central Illinois, Kenneth Edward Snearley

Masters Theses

Parts of three major streams in east central Illinois: the Embarrass, the Kaskaskia and Okaw Rivers were cruised during the fall of 1973 and the summer and fall of 1974. Beaver (Castor canadensis) sign were located and recorded. A qualitative analysis of the woody vegetation on the Kaskaskia and Okaw Rivers was undertaken.

Two activity sites were located on the Embarrass. Three fresh and three old cutting sites were located on the Kaskaskia in 1973; in 1974, five fresh sites were found. The Okaw had six fresh and six old cutting sites in 1973, but in 1974, only …