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Population Viability Analysis in endangered species recovery plans: Past use and future improvements

The scope and treatment of threats in endangered species recovery plans

An assessment of monitoring efforts in endangered species recovery plans

The demography of an African elephant (Loxodonta africana) population in Amboseli, Kenya

The Functional Consequences of Biodiversity: Empirical Progress and Theoretical Extensions

Expected minimum population size as a measure of threat

Optimizing habitat protection using demographic models of population viability

Expanding habitat protection is a common tactic for species conservation. When unprotected habitat is privately owned, decisions must be made about which areas to protect by land purchase or conservation easement. To address this problem, we developed an optimization framework for choosing the habitat-protection strategy that minimizes the risk of population extinction subject to an upper bound on funding.

Patchy populations in stochastic environments: Critical number of patches for persistence

We introduce a model for the dynamics of a patchy population in a stochastic environment and derive a criterion for its persistence. This criterion is based on the geometric mean (GM) through time of the spatial‐arithmetic mean of growth rates. For the population to persist, the GM has to be ≥1. The GM increases with the number of patches (because the sampling error is reduced) and decreases with both the variance and the spatial covariance of growth rates.

Designing marine reserve networks: Why small, isolated protected areas are not enough

Economic and ecological concepts for valuing ecosystem services