# Posts

## What's the best way to implement the logistic model in R?

I’m teaching my population dynamics class using R for the first time. I want the students to use a simple logistic population model to make predictions about how population size will respond to different management actions. So, I need to figure out the best way to implement a discrete time, logistic growth model in R.

## Accounting for exposure days

Every year I suggest a student use Terry Shaffer’s log exposure models for nest survival (Shaffer 2004). And every year I spend hours trying to figure out why the code in the help section of ?family doesn’t work. So this year I’m writing it down.

## Statistics training

This tweet sparked a host of comments about the need for R prep courses, as well as some great gifs! This is my R prep course, with a few other computational skills thrown in for good measure.

## What about that 1970's ice age?

A good friend posted this link to FB. I read the post, did some background reading, and debated whether to write this post or not. I’ve been writing it in my head anyway, so time to get it out!

## Slow Science

I’ve heard a number of calls for faculty to slow down, think, and write. This is the latest, by Allison Adams from Emory University. I’m trying, but it’s hard.

## Diversity matters. Everywhere.

Yesterday a colleague posted a link to an article in The Federalist calling out liberals for not listening. I think the author has a point.

At a reader’s request I’m attempting to add disqus comments to my blog posts. Ignore this post!

## Statistical training in ecology

This article made the rounds of twitter recently. I agree. There is a mismatch between statistical practice and training. Almost the first thing I did was flip to the appended data and see how they categorized UNL. I was relieved to see that we have a course beyond linear models; mine!

## Should I use sum-to-zero contrasts?

Should ecologists use sum-to-zero contrasts?

TL;DR No.