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    The lesser hairy-footed dunnart (<i>Sminthopsis youngsoni, Dasyuridae</i>) is a generalist marsupial insectivore in arid Australia, but consumes wolf spiders (<i>Lycosa spp., Lycosidae</i>) disproportionately often relative to their availability. This project tested the hypothesis that this disproportionate predation is a product of frequent encounter rates between the interactants due to high overlap in their diets and use of space and time. This data set focuses on the dietary aspect. Specifically, invertebrate pitfall trapping was employed to quantify food availability and selectivity for both wolf spiders and <i>S.youngsoni</i>. Pitfall traps were deployed along trails left by tracked individuals, as well as control trails, of both species groups in the north-western Simpson Desert, Queensland. In total, invertebrate pitfall traps were deployed along 11 <i>S.youngsoni</i> and 8 <i>lycosa</i> trails in October 2016. Invertebrates were identified to the level of "Order", except for spiders (Order: Arachnida) and bees, wasps and ants (Order: Hymenoptera) which were identified to the "Family" level using identification keys and were also counted and grouped into seven size classes. This data was used for the following analyses: [1] a two-way analysis of variance (ANOVA) to test whether total numbers of arthropods differed between trail type and species, [2] non-metric multidimensional scaling (NMDS) and [3] permutational analysis of variance (PERMANOVA) to test whether assemblages of arthropod prey and prey sizes differed between the two trail types for each species and between each species.

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    This data contains ant abundance and incidence collected in the core 1 ha plot within the Calperum Malee site.

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    This data contains ant abundance and incidence collected in the core 1 ha plot within the Warra Tall Eucalypt site.

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    This data contains ant abundance and incidence collected in the core 1 ha plot within the Alice Mulga site.

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    This data contains ant abundance and incidence collected in the core 1 ha plot within the Cumberland Plain site.

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    This data contains ant abundance and incidence collected in the core 1 ha plot within the Samford Peri-Urban site.

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    This data contains ant abundance and incidence collected in the core 1 ha plot within the Karawatha Peri-Urban site.

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    This data contains ant abundance and incidence collected in the core 1 ha plot within the Robson Creek Rainforest site.

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    This data contains ant abundance and incidence collected in the core 1 ha plot within the Great Western Woodlands site.

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    This data contains ant abundance and incidence collected within the Department of Agriculture & Fisheries Wambiana Grazing Trial site.