PLNT 460 Lecture Notes - Lecture 6: Phenology, Phragmites, Habitat Fragmentation
3 Sep 2016
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Document Summary
Wood was sold with notary deeds, especially maple, beech and birch. Pines and oaks were the first to go because they are use for ship masts. Agricultural intensification (>25% of land used for agriculture. Fewer natural areas, habitat fragmentation, decrease in habitat quality and biodiversity. Introduction of species to an area outside of their native range by humans. Species (not communities) migrated as the glacier retreated. Frequency is a function of human activities, exchanges of goods and people. Suitability of habitat (climate vs species traits, niche availability) Interaction with other species in their native area. Less than 10% of 900 naturalized species in quebec are considered invasive. Some native species can be considered invasive if they are a human-spread nuisance. Perennial grass with an annual stem that can grow up to 6m high. Has spread rapidly in the last 40 years. Native species of canada, but an aggressive genotype may have been introduced.
