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Orientador(es)
Resumo(s)
JUSTIFICATION: Savigniorrhipis topographicus is a single-island endemic money spider species restricted to São Jorge island in Azores, Portugal (Crespo et al. 2013). It is a rare species, with a restricted Extent of Occurrence (EOO) (4-20 km² ) and Area of Occupancy (AOO) (4-20 km²), although it is likely towards the higher end of this estimate. In the past, the species has probably strongly declined due to changes in habitat size, and there is a continuing decline in the EOO, AOO, extent and quality of habitat as well as the number of mature individuals as a result of the invasions of non-native plants and trampling of soil by dairy cows. The species occurs in a single patch of native forest (at Topo Nature Reserve), where it is under severe threat. Therefore, we suggest as future measures of conservation: (1) a long-term monitoring plan of the species; (2) control of invasive species, and (3) restrictions to the access of cattle to this area. The species is assessed as Critically Endangered (CR).
Descrição
Palavras-chave
Savigniorrhipis topographicus Endemic Spider São Jorge Island (Azores) Azores
Contexto Educativo
Citação
Borges, P.A.V. & Cardoso, P. (2020). “Savigniorrhipis topographicus”. The IUCN Red List of Threatened Species 2020: e.T58064398A58064510. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T58064398A58064510.en
Editora
IUCN