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Trentepohliales are a group of both free‐living and lichenized algae, with most diversity occurring in tropical regions. Recent studies showed that the abundance of lichens with a trentepohlioid photobiont has been increasing in temperate habitats, probably because of global warming, which makes them an interesting study case. A detailed molecular...
Cryptothecia aleurodes was considered to be a widespread, rare tropical lichen having white ascigerous areas and a crustose whitish-grey thallus containing norstictic acid. A revision of its type specimen from Guadeloupe and the study of recent specimens from Martinique proved that the species has been misunderstood. In this paper, Cryptothecia ale...
Astrochapsa martinicensis is described as new to science. It is characterized by a whitish-farinose thallus, 6–8-spored asci, (4–)5–7(–9)-septate ascospores of (12.5–)14–24(–29) × (4.5–)5–6.5(–7) µm and a chemistry with one terpenoid and traces of UV+ substances. The new species was discovered among lichen specimens collected in 2013 on the island...
Asilidae were collected during 3 consecutive years in 4 restored heathland patches west of Bruges. In total 9 species were collected. The surprisingly rich Asilidae fauna found in these rather young heathlands in the northwest of Belgium is discussed and compared with other Asilidae communities elsewhere in Flanders. Comments are given on the diffe...
Since 2014, several entomofauna groups are monitored in a large number of heathland patches near Bruges. Most of these patches are dominated by Calluna vulgaris and Erica cinerea. The sampled sites differ in history, age of the heathland, management, surface, surrounding vegetation and isolation. Spiders and insects are sampled mainly by pitfall traps, which are placed at the sites for at least 12 months. Until now more than 40 different insect and other invertebrate groups were sorted out and identified. For some groups many rare species were discovered and seem to have vital populations in these patches. Some species are even very rare and threatened in Flanders and for these species the heathlands near Bruges are very important in their survival.