Week 4 Flashcards
T or F: climate change impacts lakes on only a physical level
F, on a physical, chemical and biological level
T or F: lakes are warming slower than air or ocean temperture
F
T or F: there is going to be a decline of ice coverage in the northern hemisphere
T
T or F: lakes are resistant to mixing
T
what does lack of mixing mean for a lake?
lack of nutrient regeneration
define nutrification
when phosphorus and nitrogen from farms runs off into lakes, increase in algal blooms and cyanobacteria
nutrification increases the amount of ____________-
small fish
when there is more small fish in the lake what happens
less zoo plankton and less vegetation, therefore less places for prey to hide!
how is methane and nitrous oxide released due to algal blooms
algal blooms dettle down to the bottom, making bacteria have to break the algal bloom, therefore there is less oxygen in the water
T or F: permafrost thaw negatively impacts zooplankton diversity
T
T or F: zooplankton abundance is increasing due to thaw slumps
T
with shifting climate patterns, there is a change in ____-
salinity
differences in salinity in lakes changes invertebrate _____-
diversity
what was students project
collected core from moon lake, run toxicity test on different zooplankton eggs from different time frames and exposed them to different salinities
In the paper by Wissel et al, where was the study done
the great plains
