1. Global patterns and drivers of island arthropod biodiversity How does arthropod species richness respond to island area, age, elevation and isolation?
To what extent are island arthropod assemblages species poor and/or disharmonic?
What biogeographic processes drive island species-area relationships (SARs)?
Is there a general island SAR across all arthropod fractions, or do they vary?
How do arthropod SARs differ among oceanic, continental-shelf, continental fragment and habitat islands?
2. Island community assembly of arthropod biodiversity What are the relative roles of stochastic and niche-based processes in driving arthropod community structure within insular systems?
What is the role of niche conservatism for ecological assembly across insular environmental gradients?
How do island area, elevation and isolation influence community composition and dynamics?
What metrics (species richness, functional group composition, phylogenetic diversity, interaction network properties, SADs, etc.) characterise communities of different ages, disturbance regimes, etc?
What factors contribute to the resilience of insular arthropod communities to perturbation?
How can we best incorporate population genetic and/or phylogenetic data to advance island biogeography models?
3. Drivers of island arthropod speciation What are the relative roles of ecological and geographical drivers for diversification among arthropods within individual oceanic islands?
What species traits underpin diversification within arthropod island faunas?
4. Arthropod species abundances, endemicity and rarity within islands How and why do species abundances change as communities assemble?
What are the linkages between species rarity (geographical, habitat specificity and/or local population size) and endemicity in islands?
5. Biotic interactions of insular arthropods What role do biotic interactions play in island community assembly?
How do the interaction network properties impact island ecosystem function and vulnerability to disturbance?
6. Spatial and temporal monitoring to understand declines in and threats to insular arthropods How, if at all, do island arthropod biotas differ from continental biotas in their response to global change?
Which islands and island habitats are more susceptible to arthropod biodiversity loss?
Which island arthropod taxa are most at risk from global change and what species-traits are associated with risk?
7. Invasive arthropod species detection, identification and implications for island biodiversity What is the magnitude of arthropod species introduction and invasion within islands?
What are the primary sources and mechanisms of arthropod introduction in islands?
What are the dynamics of species naturalisation on islands?
How and why do natural habitats vary in their resilience against invasive species?