Jonathan D. Coop and Thomas J. Givnish. 2008. Constraints on tree seedling establishment in montane grasslands of the Valles Caldera, New Mexico. Ecology 89:1101–1111.

Appendix A. Reversed treelines on Cerro la Jara, a small volcanic dome in the Valle Grande.

Cerro la Jara, a small volcanic dome in the Valle Grande, exhibiting the abrupt, reversed treeline ecotones that characterize the shift from steeper mountain slopes to gentle valley bottoms in the Valles Caldera.