For corals (see Table S3), we identified
habitat specialists as species occurring exclusively in few habitats, as well as those with narrow depth ranges.
Not exact matches
Sites where the atlas shows a baseline clear - sky brightness equivalent to twilight or a half - illuminated moon are probably excluded
as habitats for
specialist species that need the true cover of darkness to survive and thrive.»
Like other
habitat specialists, Sungazers appear to be restricted to this area not only because of physical barriers such
as large rivers and mountains, but also because of the unique climactic niche in this region.
In the end, despite the adaptable features they inherited, the Neanderthals ended up
as more
habitat specialists than we did.
The researchers identified several criteria for choosing umbrella species — such
as big carnivores, most long - lived,
habitat specialists, and ones on the verge of extinction — and analyzed how many imperiled species might be saved by protecting the
habitat of that type of umbrella species, compared to species saved by randomly picking a set of species to serve
as the umbrella.
Studies like this one could enable us to predict which species will be most vulnerable to population declines due to
habitat changes,
as the inflexible
specialist species are more likely to suffer when they can't find enough of their preferred food.
The group is represented by possible
habitat generalists (such
as the large Enteroctopus dofleini which ranges from the intertidal to depths in excess of 450 m) and
specialists (such
as Vulcanoctopus hydrothermalis which is found only in hydrothermal vents).
The eastern Barents Sea (located in Russian territory),
as defined by the Polar Bear
Specialist Group (see map below), provides ample
habitat for polar bears to thrive despite extended fluctuations in seasonal sea ice cover in the western portion.