min.trap {AICcmodavg} | R Documentation |

##
Anuran Larvae Counts in Minnow Traps Across Pond Type

### Description

This data set consists of counts of anuran larvae as a function of pond
type, pond perimeter, and presence of water scorpions (*Ranatra* sp.).

### Usage

data(min.trap)

### Format

A data frame with 24 observations on the following 6 variables.

`Type`

pond type, denotes the location of ponds in
either bog or upland environment

`Num_anura`

number of anuran larvae in minnow traps

`Effort`

number of trap nights (i.e., number of traps x
days of trapping) in each pond

`Perimeter`

pond perimeter in meters

`Num_ranatra`

number of water scorpions trapped in
minnow traps

`log.Perimeter`

natural log of perimeter

### Details

Mazerolle (2006) uses this data set to illustrate model selection for
Poisson regression with low overdispersion.

### Source

Mazerolle, M. J. (2006) Improving data analysis in herpetology: using
Akaike's Information Criterion (AIC) to assess the strength of
biological hypotheses. *Amphibia-Reptilia* **27**, 169–180.

### Examples

data(min.trap)
## maybe str(min.trap) ; plot(min.trap) ...

[Package

*AICcmodavg* version 2.3-1

Index]