IUCN SSC Mid-Atlantic Island Invertebrates Specialist Group

Species

Back • Dysdera vandeli Denis, 1962

Dysdera vandeli Denis, 1962

Aranha-tenaz-de-Vandel

  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Class: Arachnida
  • Order: Araneae
  • Family: Dysderidae
DD Data Deficient
IUCN Red List Status:
  • EX
  • EW
  • CR
  • EN
  • VU
  • NT
  • LC
  • DD
  • NE

Countries of Occurrence:
Portugal - Madeira

Archipelago(s):
Madeira

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Assessor/s:
Luis Crespo
Mario Boieiro
Paulo A.V. Borges
Pedro Cardoso
Cardoso, P., Crespo, L.C., Silva, I., Borges, P. & Boieiro, M.

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

Contributor/s:

Facilitators / Compilers/s:

Assessment Rationale:

Dysdera vandeli is only known from its type locality in Caldeirão do Inferno on Madeira Island (Portugal). This species is assessed as Data Deficient (DD) in view of the lack of data on its taxonomy, distribution, population trend and the threats to its population. Further research is needed in order to assess its extinction risk.

Geographic Range:

The distribution of Dysdera vandeli is unknown as there is only a single record from Caldeirão do Inferno on Madeira Island (Portugal) in 1962 (Denis 1962). It has not been found since this, despite recent survey efforts.

Regions:
Portugal - Madeira
Extent of Occurrence (EOO):
Unknown (km2)
Area of Occupancy (AOO):
Unknown (km2)
Elevation Lower Limit:
1500 (m)
Elevation Upper Limit:
1500 (m)
Biogeographic Realms:
Palearctic
Presence:
Extant
Origin:
Endemic Madeira
Seasonality:
Resident

Population:

There is no information on the population size or trend of this species.

Habitat and Ecology

This species probably inhabits the laurisilva forest on the northern slopes of Madeira Island. The diet of D. vandeli is unknown, although most congeners are specialized hunters feeding on woodlice.

Major Threat(s):

The threats to this species are unknown.

Conservation Actions

There are no conservation actions in place for this species, but the known species range is inside the Madeira Natural Park. This species has not been found since the original description (Denis 1962) and it needs, first of all, taxonomic clarification. If valid, basic information would be needed on its distribution, ecology and possible threats.