March 25, 2024 Lundgren, E., D. Ramp, J. Wu, M. Sluk, K. Moeller, J. C. Stromberg and A. D. Wallach. 2021. Feral equids’ varied effects on ecosystems—Response. Science 373(6558):973 -974. Home » Lundgren, E., D. Ramp, J. Wu, M. Sluk, K. Moeller, J. C. Stromberg and A. D. Wallach. 2021. Feral equids’ varied effects on ecosystems—Response. Science 373(6558):973 -974.