ENV100Y5 Lecture Notes - Lecture 38: Biomagnification, Introduced Species, Forest Ecology

• School: UTM
• Department: Environment
• Course: ENV100Y5
• Professor: Barbara Murck

Document Summary

*from last class * [causes of biodiversity loss: (pollution, fragmentation, climate, Exploitation, disease, invasive species: over-exploitation: exploitation by trading endangered species. Target and non-target organisms killed: loss & fragmentation: destroying habitats, over-consuming and diminishing. Isolation causes biodiversity to decline// loss of size also lessens biodiversity: climate change: as a result of industrialization, rapid climate change is affecting biodiversity, pollution: pesticides, chemicals, etc and their impact of the environment. Tend to biomagnify, pesticides biogmagnify in animals and pollutants end up at the high trophic levels. Oil spills: invasive species: both agricultural and animal-wise. Alien species : human introduced species that could turn into invasive species. Feral cats (ex: galapagos and ground-nesting birds, have evolved without many mammalian predators: disease: depauperate communities are at high risk for disease. Depauperate : communities that have fewer species than they are supposed to are less resistant to disease] Hope: reconciliation ecology - promoting biodiversity in cities/ limiting pollutants/enforcements.