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Experimental taxonomy, 1930-1950 : the impact of cytology, ecology, and genetics on ideas of biological classification

Creator:

Hagen, Joel Bartholemew

Abstract:

During the years between 1930 and 1950 a number of attempts were made to introduce techniques and ideas from cytology, ecology, and genetics into the field of taxonomy. Advocates of this "experimental taxonomy" believed that cytological, ecological, and genetic techniques would provide a rigorous, objective methodology to replace the traditional...

Resource Type:

Dissertation
A hierarchical stream habitat classification system: development and demonstration

Creator:

Frissell, Christopher A.

Abstract:

Classification of Streams and stream habitats is useful for research involving establishment of monitoring stations, determining local impacts of land use practices, generalization from site-specific data, and assessment of basin-wide, cumulative impacts of human activities on streams and their biota. This thesis presents a framework for a hierarchical classification system,...

Resource Type:

Masters Thesis