Biology 3445F Lecture Notes - Lecture 19: Trophic Cascade, Bryophyte, Mesocosm
Document Summary
Lecture 19: stressors climate change and habitat loss, sloss. Currently, the largest driver of change in communities is due to anthropogenic sources (human involvement) Predicted that climate change will be the largest force/driver in the future. Risks: habitat loss, habitat fragmentation, altered habitat quality, climate change = non-random loss. = loss of livable environmental conditions at habitat edges: abiotic factors can spill over into the different environments at the edge (increased light penetration, wind, rain, etc. ) Single large supported by: ibt, species-area relationships (s = caz: more space = more conserved species, pros: better protection for endemic species, better for gene flow, con: expensive and inconvenient" for human activity. May ameliorate the effects of fragmentation by: promoting the movement or dispersal of individuals, reducing rates of extinction and increasing probability of population persistence, maintaining local and regional diversity. Instead of sloss debate increase habitat connectivity between small habitats to reduce cons.
