Daniel Janzen

Daniel Janzen

ecologistMaleb. 19370.0Global Dominance: 0.00%

Daniel Janzen is an influential ecologist known for his extensive research on tropical ecosystems, particularly in Costa Rica. He gained national attention for his studies on biodiversity, especially in the Guanacaste Conservation Area, where he has worked for decades. His groundbreaking work includes the use of light traps to document insect populations, leading to the discovery of thousands of species. Janzen’s career shifted dramatically following a life-threatening accident in the Costa Rican forest, which inspired him to focus on insect behavior and ecology. At 86, he continues to observe and document the alarming decline of insect populations in protected areas, emphasizing the urgent need for conservation efforts in the face of ecological collapse.

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Daniel Janzen proposed in 1982 that many tropical plants developed large, sweet fruits to attract large animals.

Extinción de mastodontes aún afecta flora sudamericana - Ciencia
ABC Color – leading Paraguayan newspaper, est. 1967·ParaguayParaguay· 2025-06-14
7.0

Daniel Janzen is an ecologist who has dedicated his career to studying insect populations in Costa Rica.

‘Half the tree of life’: ecologists’ horror as nature reserves are emptied of insects | Insects
The Guardian·United KingdomUnited Kingdom· 2025-06-03
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