Incorporating Allee effects into the potential biological removal level

Natural Resource Modeling
By: , and 

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Abstract

Potential biological removal (PBR) is an approach used to calculate sustainable harvest and “take” limits for populations. PBR was originally derived assuming logistic growth while ignoring the effects of small population size (i.e., an Allee effect). We derived a version of PBR that includes an Allee effect (i.e., small population size or densities limiting population growth rates). We found that PBR becomes less conservative when it fails to consider an Allee effect. Specifically, sustainable harvest and take levels based upon PBR with an Allee effect were between approximately 51% and 66% of levels based upon PBR without an Allee effect. Managers and biologists using PBR may need to consider the limitations if an Allee effect may be present in the species being modeled.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Incorporating Allee effects into the potential biological removal level
Series title Natural Resource Modeling
DOI 10.1111/nrm.12133
Volume 30
Issue 3
Year Published 2017
Language English
Publisher Wiley
Contributing office(s) Upper Midwest Environmental Sciences Center
Description e12133; 16 p.
First page 1
Last page 16