Chapter 1 - Núria BONADA

Chapter 3
For the rest of med-regions number of taxa and % of non-insect taxa is similar between
permanent and temporary sites, but there are differences in the EPT/OCH ratio and the
number of dipterans. MedBasin has a significantly higher EPT/OCH in permanent sites than
temporary, whereas in California, even though this ratio is also higher in permanent localities,
it is not significant. Number of dipterans is significantly lower in permanent sites from
California, but similar to temporary in the rest of sampling areas.
MedBasin
California
SWA SAfrica
Figure 7. Bray-Curtis cluster with common matrix and permanent and temporary reference sites.
When the analysis are performed comparing all regions separately in permanent and
temporary sites (Table 6), only number of taxa and EPT/OCH ratio in permanent sites are
significantly different between med-regions. For both metrics, California has higher values in
permanent sites compared with the rest of med-regions. No differences exist between regions
for all metrics in temporary sites, although box-plot graphs indicate lower higher number of
taxa and dipterans in California but a low % of non-insect taxa respect the other regions.
108