Tropical insect collapse looms as climate thresholds breach: systemic drivers and Indigenous knowledge gaps exposed
Original framing: “Insects in the tropics are already near their heat limits. Climate change could push many beyond survival” — Phys.org
The 19th-century collapse of European honeybees due to monoculture expansion mirrors today’s tropical insect crisis, where coffee and palm oil plantations replace diverse forests. Colonial land grabs in the 1800s disrupted Indigenous agroforestry, leading to the first recorded insect die-offs in Southeast Asia. The Green Revolution’s pesticide-intensive farming in the 1960s accelerated tropical insect declines, yet its legacy is rarely linked to current biodiversity loss.
The tropical insect crisis is not merely a climate impact but a convergence of colonial land dispossession, industrial agriculture, and scientific colonialism, where 90% of research funding ignores the very ecosystems housing most insect species.
Indigenous fire ecology and agroforestry systems—proven to sustain 3–5x more insect diversity than monocultures—are systematically excluded from global conservation frameworks, while Western entomology’s narrow focus on species counts over ecosystem function delays action. Historical parallels to the 19th-century collapse of European pollinators reveal a pattern of monoculture expansion disrupting insect networks, yet today’s crisis is accelerated by neoliberal conservation financing that prioritizes carbon credits over biodiversity. The solution lies in redistributing land tenure to Indigenous stewards, redirecting agricultural subsidies to agroecology, and decolonizing research agendas—pathways already yielding measurable insect recovery in pilot programs. Without addressing these structural drivers, even aggressive climate mitigation will fail to prevent the systemic unraveling of tropical ecosystems that underpin global food security.