IslandPriority

Prioritising the world's islands for the eradication of invasive vertebrates to safeguard globally threatened vertebrates

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R code to accompany paper by Nick Holmes et al.

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database compiled by Islands Conservation (Nick Holmes)

prioritisation code written by Steffen Oppel on 23 December 2014 (steffen.oppel@rspb.org.uk)

adapted from Dawson, J., Oppel, S., Cuthbert, R.J., Holmes, N., Bird, J.P., Butchart, S.H.M., Spatz, D.R., Tershy, B., 2015.

Prioritizing islands for the eradication of invasive vertebrates in the United Kingdom overseas territories. Conservation Biology 29, 143-153.

DATA CONTAIN THE FOLLOWING ITEMS:

aliens - data.frame listing all invasive mammal species for each island

EF - data.frame listing the eradication feasibility threshold values (area, human pop size) for each invasive mammal species/group

interactions - data.frame that lists the impact of each invasive mammal on each native species on every island

island_codes - vector of all island codes (a numeric version of individual island names)

islands - data.frame of all islands including location, name, area, and human population size

islpops - data.frame that converts human population size ranges into a single numeric value for calculation

natives - data.frame listing all globally threatened native vertebrate species for each island