helmmarpissa
Marpissa nivoyi
Marpissa nivoyi is a small jumping spider species characterized by its distinctive iridescent chelicerae and compact body structure typical of the Marpissa genus. These agile predators play a crucial role in controlling small arthropod populations in their specialized microhabitats, using their exceptional vision and jumping ability to hunt prey.
29
Countries
Taxonomy & Classification
Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae
Family
Salticidae
Genus
Marpissa
helmmarpissa belongs to the family Salticidae, order Araneae, within the Arachnida class.
Species Profile
Marpissa nivoyi is a small jumping spider species characterized by its distinctive iridescent chelicerae and compact body structure typical of the Marpissa genus. These agile predators play a crucial role in controlling small arthropod populations in their specialized microhabitats, using their exceptional vision and jumping ability to hunt prey.
Marpissa nivoyi faces severe population declines primarily due to habitat destruction from urban development and agricultural expansion in its limited range. The species' specialized habitat requirements and small population size make it particularly vulnerable to environmental changes and human disturbance.
Key Facts
Habitat & Distribution
Marpissa nivoyi inhabits the bark crevices and lichen-covered surfaces of mature deciduous trees, particularly favoring oak and maple species in temperate forest edges. The species requires specific microclimate conditions found in the transition zones between forest canopy and understory vegetation.
Threats
IUCN Red List: Endangered
Marpissa nivoyi faces severe population declines primarily due to habitat destruction from urban development and agricultural expansion in its limited range. The species' specialized habitat requirements and small population size make it particularly vulnerable to environmental changes and human disturbance.
Agricultural land conversion
Habitat loss from urbanization
Climate change affecting microhabitat conditions
Pesticide use in surrounding agricultural areas
Small population size and genetic bottlenecks
Found in 29 Countries
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). helmmarpissa (Marpissa nivoyi). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/helmmarpissa