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Habitat Evaluation Procedures at Ray Roberts Lake: an Analysis of the Relationship with Ecological Indicators and a Study of Observer and Temporal Variability

Habitat Evaluation Procedure data gathered at Ray Roberts Lake in 1989 and 1990 were analysed for temporal variability, observer variability and relationships between Habitat Units (HUs) and species density/diversity. observer variability within a group was analysed by cluster analysis and bootstrapping. Five out of 36 sites showed significant differences in Habitat Suitability Index (HSI) values within the group. A nonparametric Mann-Whitney test was used to analyze temporal variability. One of 6 sites showed a significant difference in HSI values between years. Using Spearman's Rank Correlation Coefficient, a correlation was found between indicator species density and HUs. No significant correlation was indicated between species diversity and HUs.

Identiferoai:union.ndltd.org:unt.edu/info:ark/67531/metadc501233
Date12 1900
CreatorsWattrus, Jane M. (Jane Marie)
ContributorsAtkinson, Samuel F., Dickson, Kenneth L., Kennedy, James H.
PublisherUniversity of North Texas
Source SetsUniversity of North Texas
LanguageEnglish
Detected LanguageEnglish
TypeThesis or Dissertation
Formatviii, 98 leaves: ill., maps, Text
CoverageUnited States - Texas - Cooke County, United States - Texas - Grayson County, United States - Texas - Denton County, 1989-1990
RightsPublic, Wattrus, Jane M. (Jane Marie), Copyright, Copyright is held by the author, unless otherwise noted. All rights reserved.

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