Using scalar models for precautionary assessments of threatened species.

  title={Using scalar models for precautionary assessments of threatened species.},
  author={Amy E Dunham and H. Resit Akçakaya and Todd S. Bridges},
  journal={Conservation biology : the journal of the Society for Conservation Biology},
  volume={20 5},
Scalar population models, commonly referred to as count-based models, are based on time-series data of population sizes and may be useful for screening-level ecological risk assessments when data for more complex models are not available. Appropriate use of such models for management purposes, however, requires understanding inherent biases that may exist in these models. Through a series of simulations, which compared predictions of risk of decline of scalar and matrix-based models, we… CONTINUE READING
Highly Cited
This paper has 21 citations. REVIEW CITATIONS

From This Paper

Figures, tables, and topics from this paper.

Explore Further: Topics Discussed in This Paper


Publications citing this paper.
Showing 1-9 of 9 extracted citations

Minimum viable population size : A meta-analysis of 30 years of published estimates

Lochran W. Trailla, Corey J. A. Bradshawb, Barry W. Brooka
View 1 Excerpt


Publications referenced by this paper.
Showing 1-10 of 30 references

Estimating risks in declining populations with poor data.

Proceedings of the National Academy of Sciences of the United States of America • 2001
View 5 Excerpts
Highly Influenced

Matrix population models: construction, analysis and interpretation

H. Caswell
Sinauer Associates, Sunderland, Massachusetts. • 2001
View 4 Excerpts
Highly Influenced

Beyond theory to application and evaluation: diffusion approximations for population viability analysis

E. E. Holmes
Ecological Applications 14:1272–1293. • 2004
View 2 Excerpts

Oncorhynchus tshawytscha∗ chinook salmon


The roles of carrying capacity, immigration, and population synchrony on persistence of stream-resident cutthroat trout

R. H. Hilderbrand
Biological Conservation 110:257–266. • 2003

A population viability analysis for the endangered Sonoran pronghorn, Antilocapra americana sonoriensis

D. A. Hosack, P. S. Miller, J. J. Hervert, R. C. Lacy.
Mammalia 66:207–229. • 2002