Tag Archives: detectability

Interpreting non-detection when observations are imperfect

Posted on March 14, 2012 by

How long should you search before deciding that your target is absent? This is a problem that is fundamental to any ecological study that aims to determine the absence of a species. It will be important in studies of extinction, … Continue reading →

Posted in CEED, Detectability, Ecological models, NERP, New research, Probability and Bayesian analysis | Tagged , , , , , , , | 2 Comments

Coextinction and recognition for unloved threatened species

Posted on March 9, 2012 by

I love this quote from Bob May (1986) – “to a good approximation, all species are insects”. Mark Burgman and David Lindenmayer’s (1998) book communicates that point beautifully, with an illustration by Kate Thompson in which the size of the … Continue reading →

Posted in CEED, Detectability, Probability and Bayesian analysis | Tagged , , , , , , | 5 Comments

Detectability of frogs

Posted on February 10, 2012 by

Stefano Canessa, a new PhD student with QAEG, has just published a paper on factors that drive the detectability of three species of frogs during surveys that he wrote with Geoff Heard, Kirsten Parris and me. He has written about … Continue reading →

Posted in CEED, Detectability, Ecological models, NERP, New research, Probability and Bayesian analysis | Tagged , , , ,

Looking for a needle in a haystack – searching for hawkweeds

Posted on January 10, 2012 by

I’m in Falls Creek at the moment, with about 15 people from QAEG and other parts of Melbourne Uni. Cindy Hauser is running an experiment to detect hawkweeds, a major threat to the biodiversity in the Victorian Alps. How would … Continue reading →

Posted in Detectability, Ecological models, New research, Probability and Bayesian analysis | Tagged , , | 1 Comment