Comparison of ecosystems on Montana’s altitudinal short-grass to alpine gradient

Document Type


Publication Date

Winter 2-5-2020


The environment changes with altitude (and latitude) and with the changes come changes in processes and organisms. Segments of the gradient can thus be recognized as habitat types (HTs), often identified by climax vegetation types. Recognition/application of HTs provides a basis for coordinating information on them and applying it to theory and management, for example of species (exotic to sensitive), production, reclamation, etc. Dr. Weaver will show some changes that he and his students recorded on Montana’s altitudinal gradient.

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Tad Weaver is professor of ecology at MSU, now emeritus. His exposure to ecosystems ranges from a Kansas childhood through Minnesota (Carleton 1963), U Montana (1965) and N Carolina (Duke 1969) to Montana (MSU 1969- ) and includes sabbaticals at CSU and WSL, Zurich. Major projects include climate change, endangered species (WBP), reclamation, exotics. An avocation/umbrella has been comparing ecosystems on Montana’s altitudinal gradient.