Native and non-native insect herbivores associated with native and non-native European trees

We compiled a list of all native and non-native insect species known to feed on 77 tree species in Europe. For each tree species, a list of insects known to utilize that species as a host was compiled using a variety of sources. The resulting list consists of 7,598 tree species -insect species pairs. Each insect was researched to determine its taxonomic groupings, feeding guild (gall-maker, folivore, reproductive plant feeder, sap-feeder, or phloem/wood-borer), and whether it was native to Europe or non-native., A list of tree species (n = 77) native to Europe was compiled. The list originated from the European Atlas of Forest Tree Species (San-Miguel-Ayanz et al. 2016). For each tree species, a list of insects known to utilize that species as a host was compiled using nine sources: Blackman & Eastop (1994), EPPO (2021), García et al. (2016), Jendek & Poláková (2014), Kunca et al. (2013), Liljeblad (2021), Pickering (2011), Robinson et al. (2010), and Smith & Roy (2008). Each insect species was then researched to determine its higher level taxonomy, feeding guild (gall maker, folivore, reproductive plant feeder, sap feeder, or wood borer), and whether it was native to Europe or non-native based on the Fauna Europea database (De Jong et al. 2014) and the International Non-native Insect Establishment Database (Turner et al. 2021). To account for incomplete data that may be generated by poorly studied trees, the bottom 12% of tree species (n = 9) were removed from the dataset; resource..., , # Native and non-native insect herbivores associated with native and non-native European trees

[https://doi.org/10.5061/dryad.3n5tb2rrx](https://doi.org/10.5061/dryad.3n5tb2rrx)

## Description of the data and file structure

This database consists of a single file, EuropeanHostData.csv which contains a comprehensive listing of all known herbivorous insects paired with each of 77 tree species native to Europe. The identity of each of 7,598 tree-insect pairs was derived from several published sources described below in Methods.

 The database consists of a single file, EuropeanHostData.csv with 12 columns:

* Host tree species
* Tree family
* “Tree type” - Tree clade (angiosperm or conifer)
* “Non-native tree in Europe” - Tree nativeness (native or non-native to Europe)
* Insect species
* Insect native biorealm
* Insect feeding guild (sapfeeder, foliage feeder, or borer)
* Insect order
* Insect family
* Insect nativeness (native or non-native to Europe)
* Insect ho...