The informative power of species surrogacy with respect to ecological processes and anthropogenic influences has been rarely studied. Thus, five datasets on carabid beetles collected using pitfall traps were analysed in order to study the impact of changing the taxonomic resolution from species to genus level on their indicatory information: a dataset of eight study sites in differently managed habitats sampled in 2013, a dataset tracing successional changes from 2004 to 2013 in a naturally regenerated pine forest, a dataset of three sites on a heap of power plant ashes and a dataset of four sites on a colliery spoil heap, both sampled from 2004 to 2011, and a dataset of six sites along the roadside of a highway being renovated in 2009, sampled in 2008 and from 2010 to 2012. The datasets were analysed by studying correlations of species numbers with genus numbers and species based Shannon diversity with genus based Shannon diversity, testing compliance between species based and genera based similarity matrices, and comparing the information provided by ordination diagrams based on species information or genus information respectively. The results indicate that at least in our study a substantial amount of information provided by species data is still contained in the genus data, but information about fine graded differences between study sites gets lost. We conclude that, even if carabid genus information might be useful in some cases (e.g. preliminary biodiversity assessment), the limitation to higher taxonomic levels like the genus level has to be done with caution.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 64 • No. 2