BIOL 191 Lab - Population Biology

what is a population?

group of individuals of the same species in a defined area

what is a community?

every organism in a defined area

what is the metric “r” in terms of population size?

per capita rate of increase per unit of time

what is “K” in terms of population size?

carrying capacity

what is carrying capacity?

the maximum size a population can reach that can be sustained by the environment - birth rate will match death rates

what are the five ciliated protozoans looked at in this lab?

Paramecium caudatum, Paramecium bursaria, Spirostomum ambiguum, Blepharisma lateritium, Didinium nasutum

what are the features of Paramecium caudatum?

typical slipper shape, large, clear with several structures inside

what is this bacteria?

Paramecium caudatum

what are the features of Paramecium bursaria?

has symbiotic green algae in cytoplasm that are arranged like chloroplasts, rounded shape

what is this bacteria?

Paramecium bursaria

what are the features of Spirostomum ambiguum?

extremely long, clubshaped, brown tint

what is this batcteria?

Spirostomum ambiguum

what are the features of Blepharisma lateritium?

pink tint, pear shaped, cilia tend to congregate on one side

what is this bacteria?

Blepharisma lateritium

what are the features of Didinium nasutum?

predator, two rows of cillia, barrel-shaped,

what is this bacteria?

Didinium nasutum

why can two species with the same requirements not occupy the same environment or resources?

they will compete for resources and both be harmed

how many drops are in a mL?

20