You are here

Keyword: population viability analysis

Hierarchical multi-population viability analysis

Publications Posted on: December 07, 2018
Population viability analysis (PVA) uses concepts from theoretical ecology to provide a powerful tool for quantitative estimates of population dynamics and extinction risks. However, conventional statistical PVA requires long-term data from every population of interest, whereas many species of concern exist in multiple isolated populations that are only monitored occasionally.

A stochastic population model for Lepidium papilliferum (Brassicaceae), a rare desert ephemeral with a persistent seed bank

Publications Posted on: October 03, 2011
Population viability analysis (PVA) is a valuable tool for rare plant conservation, but PVA for plants with persistent seed banks is difficult without reliable information on seed bank processes. We modeled the population dynamics of the Snake River Plains ephemeral Lepidium papilliferum using data from an 11-yr artificial seed bank experiment to estimate age-specific vital rates for viability loss and germination.

Conservation and management issues and applications in population viability analysis [Exercise 15]

Publications Posted on: March 25, 2008
The western prairie fringed orchid is dependent on wetland habitat (U.S. Fish and Wildlife Service 1996). Prairie wetlands in which the orchid has historically thrived are usually ephemeral, filling with water in wet years and drying up during droughts. Wetland abundance and persistence is a function not only of variations in annual precipitation, but also of changes in groundwater levels beneath the prairie surface. The U.S.