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Macrobenthic Communities In The Northern Gulf Of Mexico Hypoxic Zone: Testing The Pearson-Rosenberg Model, Shivakumar Shivarudrappa Dec 2015

Macrobenthic Communities In The Northern Gulf Of Mexico Hypoxic Zone: Testing The Pearson-Rosenberg Model, Shivakumar Shivarudrappa

Dissertations

The Pearson and Rosenberg (P-R) conceptual model of macrobenthic succession was used to assess the impact of hypoxia (dissolved oxygen [DO] ≤ 2 mg/L) on the macrobenthic community on the continental shelf of northern Gulf of Mexico for the first time. The model uses a stress-response relationship between environmental parameters and the macrobenthic community to determine the ecological condition of the benthic habitat. The ecological significance of dissolved oxygen in a benthic habitat is well understood. In addition, the annual recurrence of bottom-water hypoxia on the Louisiana/Texas shelf during summer months is well documented.

The P-R model illustrates the decreasing …


Innovative Governance And Natural Resource Management In Kenya: Procedural And Substantive Outcomes Of Civil Society Participation, Jane Omudho Okwako May 2015

Innovative Governance And Natural Resource Management In Kenya: Procedural And Substantive Outcomes Of Civil Society Participation, Jane Omudho Okwako

Dissertations

Kenya’s environmental sector is embracing co-management to address major threats to wildlife. In the past two decades, the Municipal-Community-Private Sector Partnership (MCPP) model evolved to address the threats. This dissertation seeks to explain variations in partnership outcomes. It evaluates whether the model as introduced empowers communities to be conservation stewards.

This study hypothesized the impact of five variables. These are decentralization of power, elite support, capacity of community organizations, partnership formalization, and resources expended. The findings confirm that three variables are indispensable and two minimally influence empowerment. More decentralized management structures are enabling and supportive of empowerment. However, empowerment is …