Chapter 6 EVR: Population and Community Ecology

The study of interactions, which determine the survival of a species in a habitat, is the science of ________.

At the start of a study, there were 150 Jefferson salamanders in the CNVP in Northern Ohio. Over the next year, a biologist tracking the salamanders saw that 20 new salamanders hatched and 5 died. Thus, r for this year was __________.

To survive the in the island-like host, most parasites have evolved to __________ their host.

A ____________is composed of all individuals that belong to the same species and live in a given area at a particular time.

If a population of 200 ducks increases to 240 birds the following year, then r = __________.