The third unit is a zone containing a relictual
Finally, these results support the concept that the relictual
cottonwoods at BP are ecologically resilient to some degree and also suggest that further increases in their productivity are possible through the use of environmental flows.
However, if herbivores act as dispersal vectors for ancient woodland species, keeping areas of established coppice and newly restored secondary woodlands open to deer might provide connectivity, import new species, allow access to sources of propagules and help restore mobility to relictual
(1975) suggested that the populations in Illinois may be relictual
and that the species might be becoming extinct in the western portion of its range.
It strongly suggests that this region of the Drakensberg has been subject to historical environmental conditions that have resulted in the long-term isolation and independent evolution of a distinctive and perhaps now relictual
fauna of narrow-range endemics.
There are numerous Gondwanan relictual
species in the south-west corner of the south-west, demonstrating the region's role in harbouring organisms having an ancient genetic lineage.
A new Species of Atractus (Serpentes: Dipsadinae) from a relictual
forest in northeastern Brazil.
The same situation can be seen in section, from full quartz- to pure lechatelierite- inclusions (intermediate stages show lechatelierite embedding some relictual