DOI: 10.5061/dryad.wstqjq30m
title: Data from: Can a mate-finding Allee effect be elicited to help eradicate invasive mammals?

description: The Allee effect is an important ecological process that has implications
 for extinction of endangered species and for assisting the management of
 invasive species. Few instances of Allee effects have been quantified in
 nature due to the adaptive resilience of species and the difficulty in
 empirically linking ecological mechanisms to population change. We
 developed an individual-based simulation model to mechanistically explore
 whether a management intervention could elicit a mate-finding Allee effect
 to assist the eradication of an invasive mammal. This repository holds the
 data and Python computer code to run the model. There are also two movies
 illustrating the individual-based model with and without an elicited Allee
 effect.
description: # Data from: Can a mate-finding Allee effect be elicited to help eradicate
 invasive mammals? Dataset DOI:
 [10.5061/dryad.wstqjq30m](https://doi.org/10.5061/dryad.wstqjq30m) ##
 Description of the data and file structure ``` We developed an
 individual-based simulation model to mechanistically explore whether a
 management intervention could elicit a mate-finding Allee effect to assist
 the eradication of an invasive mammal. We used stoats (Mustela erminea) as
 a test species and generalised the results by examining the sensitivity of
 Allee effects to a range of biological attributes and management
 scenarios. ``` ### Files and variables #### File: Metadata.pdf
 **Description:** File describing contents of this repository #### File:
 postSimulation.py **Description:** Script to initiate the processing of
 results from simulation. #### File: ressy.img **Description:** Erdas
 Imagine raster file of Resolution Island at 10-metre resolution projected
 in epsg:27200. #### File: ressyalldatatraploc5.csv
 **Description:** Eastings and northing of traps used in study. #####
 Variables * sid: Trap id number * lat: Latitude * long: Longitude *
 easting: Eastings in epsg:27200 * northing: Northings #### File:
 startSimulation.py **Description:** Script to set data and results
 directories, number of iteration, and intiate the simulation. #### File:
 movie.wmv **Description:** Video file that demonstrates movement,
 survival, trapping, reproduction and decoy deployment. The following
 symbols are used in the video: 1. Green squares are traps 2. Small blue
 immobile squares that fade with time are the pheromone decoys 3. Small
 black filled circles are males exhibiting home range movement 4. Large
 black filled circles are males exhibiting mate-searching movement 5. Small
 blue filled circles are non-pregnant females exhibiting home range
 movement 6. Large blue filled circles are non-pregnant females exhibiting
 mate-searching movement 7. Small red filled circles are pregnant females
 exhibiting home range movement 8. Large stationary black or blue filled
 circles are nests with non-fertilised female kits 9. Stationary red
 squares are nests with non-fertilised female kit #### File:
 movieNoDecoy.wmv **Description:** Video files as above, but without
 deployment of pheromone decoys. #### File: calcresults.py
 **Description:** Script with functions to process results (to be placed in
 a 'pheromone' subdirectory). #### File: calculation.py
 **Description:** Script that runs the simulation and writes results to
 directory (to be placed in a 'pheromone' subdirectory). ####
 File: params.py **Description:** Script to set parameters for simulation
 (to be placed in a 'pheromone' subdirectory). ## Code/software
 Python 3.7.3 was used on linux with the following packages: Numpy 1.16.2
 Scipy 1.2.1 Numba 0.43.1 RIOS 1.4.8 gdal 2.4.0 matplotlib 3.0.3
 prettytable 0.7