Island-biology
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Ischnura hastata
Citrine Forktail
Ischnura hastata, the Citrine Forktail, is a small damselfly with remarkable reproductive diversity across its range. Native populations in North America exhibit typical sexual reproduction, while populations in the Azores archipelago represent the only known example of parthenogenesis in the order Odonata. A population in the Galápagos Islands has evolved monandry (single mating per female), driven by extremely short adult lifespans of 1–3 days. The species occupies diverse wetland habitats from temperate North America to oceanic islands.