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GENERAL ECOLOGY > Population Dynamics > Flashcards

Population Dynamics Flashcards

1
Q

Factors that add individuals to population. (2)

A

Births and Immigration

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2
Q

Factors that remove individuals to population

A

Deaths and Emigration

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3
Q

Concerned with the factors influencing the expansion, decline, or maintenance of populations.

A

Population Dynamics

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4
Q

Their native range extend from tropical to cold temperate environment.

A

Apis mellifera (Honey Bee) [Africanized]

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5
Q

Rate of dispersal of Africanized honey bees

A

300-500 km/yr

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6
Q

An important aspect of population dynamics that can increase or decrease local population densities.

A

Dispersal

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7
Q

Example of plant seeds dispersed by wind.

A

Seeds of dandelion (Taraxicum officionale)

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8
Q

Example of larvae dispersed by water.

A

Barnacle (Chthamalus sp.) - larvae travel the high seas on far ranging ocean currents

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9
Q

Juvenile species dispersed by winds.

A

Juvenile garden spiders (Argiope sp.) - spinning a silken thread that catches the wind

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10
Q

Plant seeds can be dispersed by: (3)

A
  1. Winds
  2. Water
  3. Transported by a variety of mammals
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11
Q

Young mammals and birds dispersed from?

A

The area where they are born and may join other local populations

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12
Q

Changes in the density of predator populations in response to increase prey density.

A

Numerical Responses

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13
Q

A part of a larger population, which sustains a limited exchanged of individuals through immigration and emigration.

A

Subpopulation

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14
Q

Group of subpopulations living on such patches connected by exchange of individuals among patches make up a?

A

Metapopulation

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15
Q

SN of rocky mountain parnassian butterfly

A

Parnassius smintheus

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16
Q

A curve that summarize the pattern of survival in a population.

A

Survivorship Curve

17
Q

Bookkeeping devices that list bith the survivorship and the deaths or mortality in populations.

A

Life Tables

18
Q

A group born during the same period (e.g. same year) is called?

A

Cohort

19
Q

Data collected from cohort can be created as table called?

A

Cohort life table

20
Q

Methods of Estimating Patterns of Survival (3)

A
  1. Cohort approch
  2. Recording the AGE AT DEATH of large number of individuals.
  3. Age distribution approach
21
Q

Recording the AGE AT DEATH of large number of individuals produces what kind of table?

A

Static life table

22
Q

Consists of the proportion of individuals of different ages within a population.

A

Age distribution

23
Q

Pattern of survival in Phlox drummondii is similar to?

A

Dall sheep

24
Q

How long does the survival by P. drummondii played out?

A

Less than a year

25
Q

Pattern of survival this species is completed within 11 days.

A

Floscularia conifera (rotifer)

26
Q

Example of birds species with constant rates of mortality.

A
  • white crowned sparrows
  • American Robins
27
Q

Out of 1 million eggs laid by a mackerel, how many die during the FIRST 70 DAYS of life?

A

More than 999 thousand

28
Q

Three Types of Survivorship Curves

A
  1. Type 1 survivorship curve (dall sheep, Phlox drummondii, rotifers)
  2. Type 2 survivorship curve (American Robins, white crowned sparrows, common mud turtles)
  3. Type 3 survivorship curve (desert plant cleome)
29
Q

Relatively high rate of survival among young and middle-aged individuals followed by a high rate of mortality among the aged.

A

Type 1 survivorship curve

30
Q

Constant rates of survival throughout life produced this straight line pattern survival.

A

Type 2 survivorship curve

31
Q

The blue line in which a period of extremely high rates of mortality among the young is followed by a relatively high rate of survival.

A

Type 3 survivorship curve

32
Q

The blue line in which a period of extremely high rates of mortality among the young is followed by a relatively high rate of survival.

A

Type 3 survivorship curve

33
Q

________ of a population reflects its history of survival, reproduction, and potential for future growth.

A

Age distribution

34
Q

What does age distribution indicates?

A
  • periods of successful reproduction
  • periods of high and low survival
  • whether the older individuals in a population are replacing themselves/if the population is declining
35
Q

Who studied Darwin’s Finch population for decades?

A

Rosemary and Peter Grant

GENERAL ECOLOGY (3 decks)

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