IUCN SSC Mid-Atlantic Island Invertebrates Specialist Group

Species

BackScotognapha paivai Blackwall, 1864

Scotognapha paivai Blackwall, 1864

  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Class: Arachnida
  • Order: Araneae
  • Family: Gnaphosidae
LC Least Concern
IUCN Red List Status:

Countries of Occurrence:
Portugal - Madeira

Archipelago(s):
Madeira

Reviewer/s:
Henriques, S. & Russell, N.

Contributor/s:

Facilitators / Compilers/s:


Assessment Rationale:

Scotognapha paivani is endemic to the archipelago of Selvagens, Portugal. This species has a restricted geographic range (the extent of occurrence (EOO) is only 13 km² and the area of occupancy (AOO) is 12 km²). However, it is assessed as Least Concern (LC), since the species range is inside the Selvagens Nature Reserve, which seems to be stable with no signs of loss or known threats. A monitoring of population trends should be conducted to confirm species status.

Geographic Range:

Scotognapha paivani is restricted to Selvagem Grande, Selvagem Pequena and Ilhéu de Fora in the archipelago of Selvagens (Portugal). The extent of occurrence (EOO) is 13 km² and the area of occupancy (AOO) is 12 km².

Regions:
Portugal - Madeira
Extent of Occurrence (EOO):
13 (km2)
Area of Occupancy (AOO):
12 (km2)
Elevation Lower Limit:
0 (m)
Elevation Upper Limit:
160 (m)
Biogeographic Realms:
Palearctic
Presence:
Extant
Origin:
Endemic Madeira
Seasonality:
Resident

Population:

No population size estimates exist, but the population size seems to be stable with no signs of loss or known threats.

 

Habitat and Ecology

The islands and islets of Desertas have a mix of grassland and rocky outcrops within coastal cliffs. The species seems to be relatively common in grassland, it is unknown if it also occurs in other habitats. This species is probably a nocturnal hunter of small arthropods at ground level.

Major Threat(s):

There are no known threats to this species.

Conservation Actions

No specific conservation measures are in place for this species, but the species range is inside the Selvagens Nature Reserve. A monitoring of population trends should be conducted to confirm species status.