Chapter 8 Properties of Populations

Question 1

Population

Answer 1

a group of individuals of the same species living in a given area at a given time

Question 2

Unitary organisms

Answer 2

Form, development, growth, and longevity are predictable and determinate from conception on. The zygote, formed through sexual reproduction, grows into a genetically unique organism (like a bear or a human)

Question 3

Modular Organisms

Answer 3

• The zygote (the genetic individual) develops into a unit of construction, a module, which then produces further, similar modules. (PLANT WITH MODULLES THAT CREATE MODULES THAT CREATE MODUES)

Question 4

Genet

Answer 4

individual plants produced by sexual reproduction

Question 5

Ramet

Answer 5

asexually produced individuals derived from the genetic parent

Question 6

Clone

Answer 6

group of ramets from the same genet make up a clone

Question 7

Population distribution

Answer 7

area in which the population occurs

Question 8

Ubiquitous

Answer 8

– a species with an extensive geographic range, found in Many locations

Question 9

Endemic

Answer 9

– species restricted in distribution to a particular location, limited geographic distribution

Question 10

Metapopulation

Answer 10

– separated populations of a species interconnected by movement of individuals among habitat patches

Question 11

Abundance

Answer 11

– total number of individuals in the population

Question 12

Crude population density

Answer 12

number of individuals per unit area

Question 13

Ecology population density

Answer 13

density measured in terms of area available as habitat… example: bird density per acre of land is crude; bird density per acre of possible forest habitat is ecological density

Question 14

Dispersion

Answer 14

– spatial distribution of individuals within a population

Question 15

Dispersal

Answer 15

leaving an area of birth or activity for another area

Question 16

Purpose of producing ramets?

Answer 16

To extent life of plant! So when older modules die, others live and new ones appear!

Question 17

Geographic range

Answer 17

when the defined area encompasses all the individuals of a species

Question 18

Distribution vs abundance

Answer 18

distribution- spatial extent of population

abundance- total number of individuals within the area

Question 19

2 Factors of Abundance

Answer 19

1. Population Density- number of individuals per area… using crude or ecological
2. Population distribution (AREA OF POP)

Question 20

Why is crude density not always accurate?

Answer 20

Because not equally numerous individuals across the geographic range. Ecological allows us to focus on habitats

Question 21

Random vs Uniform vs Clumped spatial distributions

Answer 21

random is random
uniform is territorial and even
clumped is like herds of fish or schools of buffalo

Question 22

Plants that reproduce asexually form what kind of spatial distribution?

Answer 22

clumped as they form from the parent plant

Question 23

3 age classes that are common

Answer 23

prereproductive
reproductive
post reproductive

Question 24

dendrochronology

Answer 24

counting rings of trees to age trees