In teaching interactive natural history I ask stud…

In teaching interactive natural history I ask students whether they can predict the degree of negative effects on biodiversity by looking at an alien plant in isolation. What is its growth form, time to maturity, growth rate, number of seeds, mode of seed dispersal. density and mode of branch growth, density and type of leaves (deciduous of evergreen), any chemical smell in leaves, amount and kind of litter… Braziian pepper has traits that predict high frequency, high dernsity, and high impact per individual. Only climbing fern is and Melaleuca are worse here in south Florida. Dr. Tom (Poulson)

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