Native trees have more insects.

The above table compiled by the Offwell Woodland and Wildlife Trust shows clearly that native trees in park bring with them a higher level of biodiversity in comparsion to introduced species. I have been going on and on recently about the joys of the anthropocene. Here is a reminder of the downsides of the great species bonanza. Found via Monbiots Return of the Native.
 

Invasive species in NL

When rereading an old post on 'novel ecosystems' I wondered in what way statistics could illustrate the point of rapidly changing environments. The above graph shows the number of invasive vertebra, molluscs and lobsters. That the trend is toward acceleration is impossible to miss. I am looking for similar data on plants. There are an approximate 27.000 animal species in NL (2010 Data, graph on the right). The use of this is limited as presence of a specie and the frequency of a specie are two entirely different things.

   
The rising presence of invasive species happens against a decline in biodiversity: 

The 2005 'Audit of non-native species in England' has the following table on introduction dates for invasive species. It does not seem to show the same pattern from the Dutch data.