PWRC - Underwood - BiologicalPopulations
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Estimation of Density and Abundance of Biological Populations on National Parks and Wildlife Refuges Through Distance Sampling
The Challenge: Assessing the status and trends of populations of biological organisms is an important management goal and a recurrent theme in USGS research. Often, the most basic question of “how many are there?” remains elusive, thus making management decisions more difficult. This study continues a long-term commitment of technical support for the use of distance sampling for wildlife...
Related Content
Estimation of Density and Abundance of Biological Populations on National Parks and Wildlife Refuges Through Distance Sampling
The Challenge: Assessing the status and trends of populations of biological organisms is an important management goal and a recurrent theme in USGS research. Often, the most basic question of “how many are there?” remains elusive, thus making management decisions more difficult. This study continues a long-term commitment of technical support for the use of distance sampling for wildlife...