Week 3 Flashcards
what are the bases of the food web
photosynthetic algae and cyanobacteria
photosynthetic algae and cyanobacteria are also commonly called ________
phytoplankton
what resists phytoplankton from sinking
horms, spines and setae are used to increase surface area
what are zooplankton
wide variety of planktonic organisms that live in lakes, ponds and rivers
zooplankton are an important food for what organisms
young of year fish- larval stage
T or F: planktonic animals can be found in almost all animal phyla
T
what are the three major groups of zooplankton
rotifers, cladocera and copepoda
what are some characteristics of rotifers
mostly sessile, omnivorous, filter feeding with corona
what is a corona
rotifer feeder, looks like a crown
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
T or F: cladocera reproduce in large number
T, hold eggs in their back pouch
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
define invasive species
species introduced to regions outside their historic native range
what are the filters in terms of invasive species
biogeographic, physiological (chemical and physical), and biotic (competitors and predator)
Invasive species are a major threat in what area of the world
freshwater lakes
what is the most common invasion vector
ships!!!!!!
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
In the paper by Carpenter and Zanden, where did it takeplace?
Lake mendota
In the paper by Carpenter and Zanden, what was the invasice species
spiny water flea, bythotrephes
In the paper by Carpenter and Zanden, how was water clarity measured
secchi depth
In the paper by Carpenter and Zanden, what season was it most affected?
fall
