Estimating survival of unmarked neonates with camera traps

Abstract Survival and recruitment of offspring are important drivers population dynamics. Yet, studying wildlife shortly after parturition is logistically challenging oftentimes cost‐prohibitive. As a result, our ecological understanding neonate survival limited for many species management decisions often made without an adequate their implications. We developed model to estimate the overall rate neonates timing mortality (i.e., shape curve) based on changes in ratio adult females observed camera trap photographs. evaluated with simulations provided example application using North American elk ( Cervus canadensis ) Idaho. Our suggested that estimates curve accurate when researchers provide unbiased female survival, birth (offspring per female), distribution dates. When can priori values just rate, were accurate, but early was underestimated. Idaho consistent generated by capture‐based studies. ratio‐based provides alternative traditional methods estimating does not rely invasive or expensive capture monitoring techniques. believe this method could apply wide variety due ease data collection relatively small number critical assumptions. A major benefit ability simultaneously monitor other community, which will facilitate better variation survival.