Identifying drivers of pumpkinseed invasiveness using population models

Identifying drivers of pumpkinseed invasiveness using population models

Pumpkinseed (Lepomis gibbosus) is listed among the most invasive fish species and has been demonstrated to have adverse impact on native species when present in high numbers. However, not all introductions result in high density populations. There are several possible underlying mechanisms behind this variation in population density (e.g. water quality, availability of nesting substratum and bi...

A New Approach to Identifying the Drivers of Regulation Compliance Using Multivariate Behavioural Models

Non-compliance with fishing regulations can undermine management effectiveness. Previous bivariate approaches were unable to untangle the complex mix of factors that may influence fishers' compliance decisions, including enforcement, moral norms, perceived legitimacy of regulations and the behaviour of others. We compared seven multivariate behavioural models of fisher compliance decisions usin...

Identifying High-Risk Commercial Truck Drivers Using a Naturalistic Approach

Identifying Productivity Drivers by Modeling Work Units Using Partial Data

We describe a new algorithm for estimating a model for an independent variable which is not directly observed, but which represents one set of marginal totals of a positive sparse two-way table whose other margin and zero pattern are known. The application which inspired the development of this algorithm arises in software engineering. It is desired to know what factors aaect the eeort required...

Identifying recombination hotspots using population genetic data

Motivation: Recombination rates vary considerably at the fine scale within mammalian genomes, with the majority of recombination occurring within hotspots of ~2 kb in width. We present a method for inferring the location of recombination hotspots from patterns of linkage disequilibrium within samples of population genetic data. Results: Using simulations, we show that our method has hotspot det...