Category Archives: population modeling

Should we account for imperfect detection when evaluating patterns in fish abundance?

Our recent paper sheds light on the issue of imperfect detection when evaluating patterns in fish abundance. We synthesize the information from numerous studies to develop a realistic expectation of when and how the detection probability should vary when sampling fish. Our … Continue reading

Posted in Ecological statistics, Ecology, Experimental design, fisheries management, population modeling, recreational fisheries, Uncategorized | Leave a comment

Virtual ecologist module #2: occupancy model design trade-offs

The Virtual Ecologist method is a form of stochastic simulation where the process of collecting, analyzing, and interpreting data are simulated. This post is the second module of the Virtual Ecologist blog series. The first module was an introduction to using … Continue reading

Posted in Ecological statistics, Ecology, Experimental design, population modeling | Tagged , , , , , , , | 1 Comment

Using movement information to approximate population closure for mark-recapture sampling designs:

Abundance of animals in an area (i.e. density) is one of the most basic population parameters desired in applied ecology. Many methods have been developed to estimate abundance within an area such as mark-recapture; however, it is often unclear the … Continue reading

Posted in fisheries management, population modeling, Uncategorized | Tagged , , , , , , , , , , | 3 Comments

Approximating 80% statistical power with management triggers

Recently I have been involved with the evaluation of two monitoring program designs where the objective of the program is to detect when a metric has crossed a specific threshold that is used to trigger management.  For these programs the … Continue reading

Posted in population modeling, Uncategorized | Tagged , , , , | Leave a comment