From COS:
EcoEvoRxiv (EcoEvo“archive”) is a not-for-profit research repository for works related to ecology, evolution and conservation. The EcoEvoRxiv server can be used for freely and legally sharing preprints (manuscripts before submissions to journals), postprints, reports, and datasets.
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“I am very excited about launching EcoEvoRxiv, where ecologists and evolutionary biologists can upload their preprints,” said Shinichi Nakagawa from UNSW in Sydney, Australia, who is leading the effort. “It’s extremely powerful that a preprint at EcoEvoRxiv can seamlessly integrate with a project on the Open Science Framework (OSF). We hope EcoEvoRxiv will encourage more ecologists and evolutionary biologists to put preprints online.”