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Filtering by: Alternative title ssim 4-H 3221 Committee Member Hibbs, David

Linkages among land use, riparian zones, and uptake and transformation of nitrate in stream ecosystems

Creator:

Sobota, Daniel J.

Abstract:

Land use alters the physical and biological structure of stream ecosystems and potentially alters their capacity to process nitrogen (N), an essential nutrient that has nearly doubled in abundance on the biosphere during the past century from human activities. In this dissertation, I quantified uptake and transformation of nitrate (NO₃⁻)...

Resource Type:

Dissertation

Full Text:

became evident after cellulose and lignin components of woody tissues began to decompose (> 4
Distribution and Ecological roles of arthropods in dead woody materials of ponderosa pine forests, northern California

Creator:

Lemieux, Jeffrey P.

Abstract:

This dissertation describes arthropod responses to and effects on decay processes in ponderosa pine, a dominant forest canopy tree in northern California. We used both descriptive and experimental field techniques to establish how arthropod assemblages depend on and are important to the disintegration of woody structures in forests of this...

Resource Type:

Dissertation

Full Text:

.................................................................................................................... 88 TABLE OF CONTENTS (CONTINUED) Chapter 4. Canopy Removal and Low-intensity Fire Effects on