Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Animal Conservation Bio > Chapter 10: Connectivity > Flashcards

Chapter 10: Connectivity Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

how do wildlife species occur?

A

as multiple populations distributed across landscapes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

connectivity equation

A

N t+1 = Nt + B + I - D - E

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

E

A

emigration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

I

A

immigration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

one migrant per generation rule

A
  • typically maintains genetic diversity
  • balances local adaptation
  • independent of population size
  • migrant has to have the same probability of breeding
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

demographic connectivity

A

change in population size due to immigration and emigration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

impact of demographic connectivity

A

a function of the migration rate & the local demographic rates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

migration

A
  • movement of large numbers of one species from one place to another
  • often round trip
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

dispersal

A

permanent movement away from population of origin to another population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

types of dispersal

A
  • immigration
  • emigration
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

immigration

A

dispersal into a target population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

emigration

A

dispersal out of a target population

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

example of migration

A

movement of eels between lakes & rivers & Sargasso Sea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

example of dispersal

A

movement of mountain lions from W. USA to the midwest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

why is connectivity important?

A
  • persistence & fluctuation of populations
  • colonization & recolonization of empty sites
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

persistence & fluctuation of populations

A
  • rescue effects
  • synchrony
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

rescue effects

A
  • genetic
  • demographic
  • evolutionary
18
Q

synchrony

A
  • of population dynamics to dampen fluctuations
  • can have negative consequences
19
Q

colonization of new sites

A

permits response to changing environmental conditions

20
Q

example of colonization of new sites

A

global climate change

21
Q

recolonization

A

increase persistence of suite of populations

22
Q

how to measure connectivity?

A
  • using mark-recapture methods
  • radio telemetry
23
Q

CMR: Roseate Terns

A
  • band a large number of birds at colonies
  • colonies search each year for marked birds
  • identify which birds moved
  • need to know where to look
24
Q

Jolly Seber

A

open population type models

25
Q

CMR for measuring dispersal & connectivity

A
  • great for tightly colonial species
  • great for heavily harvested animals
  • need to know where to look for dispersing animals
26
Q

for which of the following would it be challenging to measure movement using mark recapture?
- praire dogs
- white tailed deer
- raccoons

A

raccoons

27
Q

radio telemetry

A
  • mark animals with a radio transmitter
  • follow them
28
Q

different types of radio telemetry

A
  • VHF
  • acoustic
  • satellite
29
Q

VHF & acoustic telemetry

A
  • easier to find dispersers than CMR
  • limited by the range of the transmitter
30
Q

VHF & acoustic telemetry: limited by range of transmitter

A
  • limited by size
  • aircrafts & drones can help search
  • freshwater & marine
31
Q

The Motus Wildlife Tracking System

A
  • automated radio telemetry to simultaneously track hundreds of individuals of numerous species of birds, bats, & insects
  • international collaborative network
32
Q

satellite transmitters

A
  • marks animals with transmitters
  • sit at your desk & let a satellite track them
33
Q

pros of satellite transmitters

A

good for broad scale movement

34
Q

cons of satellite transmitters

A
  • not always extremely accurate
  • expensive
  • relatively heavy
35
Q

Genetic Method: assignment test

A

designed to directly detect individuals that disperse from their population of birth

36
Q

Brook Trout

A
  • native to Lake Erie tributary system
  • reintroductions began in late 90’s
37
Q

metapopulation

A

population of populations

38
Q

metapopulation details

A
  • habitat occurs in discrete patches
  • dispersal occurs between patches
  • not all patches are created equal
39
Q

source population

A

serve as a net contributor to the metapopulation

40
Q

sink population

A

population that drains the metapopulation

41
Q

Snowshow hares cycle across Canada & AK

A

source sink dynamics are one of the reasons that snowshow hares do not cycle in the US

Animal Conservation Bio (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions