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Flashcards in Week 3 Deck (21)
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1

what are the bases of the food web

photosynthetic algae and cyanobacteria

2

photosynthetic algae and cyanobacteria are also commonly called ________

phytoplankton

3

what resists phytoplankton from sinking

horms, spines and setae are used to increase surface area

4

what are zooplankton

wide variety of planktonic organisms that live in lakes, ponds and rivers

5

zooplankton are an important food for what organisms

young of year fish- larval stage

6

T or F: planktonic animals can be found in almost all animal phyla

T

7

what are the three major groups of zooplankton

rotifers, cladocera and copepoda

8

what are some characteristics of rotifers

mostly sessile, omnivorous, filter feeding with corona

9

what is a corona

rotifer feeder, looks like a crown

10

what are some characteristics of cladocera

bivalve carapace (can split into two), swin using large second antennae, filter phytoplanktom, rostrum at front of the body

11

T or F: cladocera reproduce in large number

T, hold eggs in their back pouch

12

what are the two major groups of copepoda and how can you distinguish the two

Cyclopoids: first antenna much shorter than the body
Clanoids: first antenna about as long as body

13

define invasive species

species introduced to regions outside their historic native range

14

what are the filters in terms of invasive species

biogeographic, physiological (chemical and physical), and biotic (competitors and predator)

15

Invasive species are a major threat in what area of the world

freshwater lakes

16

what is the most common invasion vector

ships!!!!!!

17

In the paper by Carpenter and Zanden, what was the goal of the paper

to highlight how invasive species and ecosystem services are often not appreciated

18

In the paper by Carpenter and Zanden, where did it takeplace?

Lake mendota

19

In the paper by Carpenter and Zanden, what was the invasice species

spiny water flea, bythotrephes

20

In the paper by Carpenter and Zanden, how was water clarity measured

secchi depth

21

In the paper by Carpenter and Zanden, what season was it most affected?

fall