VU

Banza nihoa

Unknown

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Banza nihoa faces severe threats from its extremely restricted range on Nihoa Island, where the entire population exists on just 63 hectares of habitat. Invasive plant species pose a significant risk by altering the native vegetation structure that this cricket depends on for shelter and breeding sites. Climate change and sea level rise threaten the low-lying portions of the island, while the species' small population size makes it vulnerable to stochastic events and genetic bottlenecks.

Threat summary

Habitat

Banza nihoa is endemic to Nihoa Island in the Northwestern Hawaiian Islands, inhabiting native shrublands and grasslands dominated by Eragrostis variabilis and Amaranthus brownii. The species occupies both coastal and interior areas of the island, utilizing the sparse vegetation for shelter and foraging on the island's limited arthropod fauna.

TERRESTRIAL· major

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Frequently asked questions

Why is Banza nihoa classified as Vulnerable?
Banza nihoa is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Banza nihoa faces severe threats from its extremely restricted range on Nihoa Island, where the entire population exists on just 63 hectares of habitat. Invasive plant species pose a significant risk by altering the native vegetation structure that this cricket depends on for shelter and breeding sites. Climate change and sea level rise threaten the low-lying portions of the island, while the species' small population size makes it vulnerable to stochastic events and genetic bottlenecks.
Where does Banza nihoa live?
Banza nihoa occurs in United States. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Banza nihoa?
The main threats to Banza nihoa are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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