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BI488- Invertebrate Conservation > Week 4 > Flashcards

Flashcards in Week 4 Deck (18)
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1
Q

T or F: climate change impacts lakes on only a physical level

A

F, on a physical, chemical and biological level

2
Q

T or F: lakes are warming slower than air or ocean temperture

A

F

3
Q

T or F: there is going to be a decline of ice coverage in the northern hemisphere

A

T

4
Q

T or F: lakes are resistant to mixing

A

T

5
Q

what does lack of mixing mean for a lake?

A

lack of nutrient regeneration

6
Q

define nutrification

A

when phosphorus and nitrogen from farms runs off into lakes, increase in algal blooms and cyanobacteria

7
Q

nutrification increases the amount of ____________-

A

small fish

8
Q

when there is more small fish in the lake what happens

A

less zoo plankton and less vegetation, therefore less places for prey to hide!

9
Q

how is methane and nitrous oxide released due to algal blooms

A

algal blooms dettle down to the bottom, making bacteria have to break the algal bloom, therefore there is less oxygen in the water

10
Q

T or F: permafrost thaw negatively impacts zooplankton diversity

A

T

11
Q

T or F: zooplankton abundance is increasing due to thaw slumps

A

T

12
Q

with shifting climate patterns, there is a change in ____-

A

salinity

13
Q

differences in salinity in lakes changes invertebrate _____-

A

diversity

14
Q

what was students project

A

collected core from moon lake, run toxicity test on different zooplankton eggs from different time frames and exposed them to different salinities

15
Q

In the paper by Wissel et al, where was the study done

A

the great plains

16
Q

In the paper by Wissel et al, what were the methods?

A

seventy endoheric lakes were sampled for environemntal data and zooplankton

17
Q

In the paper by Wissel et al, how were the zooplankton collected?

A

using vertical tows

18
Q

what factors will be the most important for zooplnakton due to the effects of global warming? (according to wissel et al)

A

calcium and salinity