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Data for: Successful management of invasive rats across a fragmented landscape

Citation

Rankin, Erin et al. (2021), Data for: Successful management of invasive rats across a fragmented landscape, Dryad, Dataset, https://doi.org/10.6086/D1PD72

Abstract

This dataset is from the manuscript "Successful management of invasive rats across a fragmented landscape" and provides the details on snap trap and tracking card data in a broadscale rat removal effort 2011-2015 in the Upper Waiakea Forest Reserve on the Island of Hawai‘i. It describes the successful trapping efforts as well as long term tracking data, which allow us to describe patterns of habitat use of non-native vertebrate species in these naturally fragmented forests in Hawaii.

Methods

All methodological details are provided in the paper. In short, we monitored 34 forest fragments (kipuka) on the windward NE slope of Mauna Loa Volcano within the Upper Waiakea Forest Reserve on the Island of Hawai‘i. We selected 16 of these kipuka for rat removal using snap traps distributed within the kipuka as well as along the fragment edges. We also used ink tracking cards to monitor activity.

Usage Notes

rat.removal.data.forDRYAD.xlsx provides the snap trap data. Rats worksheet provides data as to the number and species of rats collected in snap traps by kipuka (including all kipuka details such as size) and date. Rat.size worksheet provides detailed data as to the body size details for collected rats in snap.traps, including species, sex, and weight, as well as details as to the bait type used in the snap trap and date collected. Bycatch worksheet provides details as to the number of bycatch collected in snaptraps by date and kipuka.

tracking.data.forDRYAD.xlsx provides the tunnel data. Tunnels.all worksheet provides the data for the four years of quarterly tracking tunnel monitoring with details of what species left the tracks kipuka, treatment (control or rat removal), tunnel height and height of tunnel. Grids.2012 worksheet provides the same details summarized for the ground level extensive trapping in 2012. Location indicates whether the tunnels were in the kipuka: 0 is perimeter and 1 is grid. Non.rat.tunnels worksheet combines these datasets (summarized by kipuka, tunnel height, and dataset (grid.only vs regular quarterly monitoring), and looks at the proportion of hits by non-target species, bait, and kipuka (including all kipuka details).