Theses and Dissertations - UTB/UTPA

Date of Award


Document Type


Degree Name

Master of Science (MS)



First Advisor

Dr. Timothy Brush

Second Advisor

Dr. Robert I. Lonard

Third Advisor

Dr. Robert J. Edwards


I examined demographic parameters at Santa Ana National Wildlife Refuge, 1995–1999 utilizing Monitoring Avian Productivity and Survivorship protocol. The Olive Sparrow was the species most frequently captured. The capture rate of adult and young birds remained fairly steady over the years and no significant linear trends were observed. Productivity was highest in 1997, which influenced the number of adults captured in 1998, and was significantly related to annual rainfall. Mean total capture rates were higher at the Highland station than the Resaca station. Demographic comparisons between mist nets and point counts were variable, suggesting that both sampling techniques have their strengths and weaknesses. Managers at Santa Ana should implement monitoring strategies utilizing MAPS protocol to further investigate primary demographic parameters.


Copyright 2001 Tina Louise Gallegos. All Rights Reserved.

Granting Institution

University of Texas-Pan American