Global Diversity (Week 5 Lecture 7)

Question 1

Who named over 9000 terrestrial plant species?

Answer 1

Carl Linnaeus

Question 2

90% of plants are ______.

Answer 2

Angiosperms

Question 3

Tropical regions are ______ with species while polar regions are ______ with species.

Answer 3

Rich, poor

Question 4

Who described a global latitudinal gradient in species diversity?

Answer 4

Alexander von Humboldt

Question 5

Who has the most plant species between asia europe and north america?

Answer 5

Eastern asia, north america, europe

Question 6

In Canada, where is the most species richness?

Answer 6

Central Canada

Question 7

In the temperate zone, a peak of within-community species richness occurs between approximately what latitudes?

Answer 7

Between 35 and 60 degrees.

Question 8

Understanding patterns of diversity is important for ______.

Answer 8

Conservation

Question 9

Between tropical, polar and temperate regions, arrange them in species richness.

Answer 9

Tropical, temperate, polar

Question 10

An example of a the dry- and wet-adapted species - sorted into uplands and wetlands respectively.

Answer 10

Rice

Question 11

Adaptation, isolation, speciation and extinctinction are examples of?

Answer 11

Evolutionary processes

Question 12

True or False: evolutionary processes can happen quick or slow.

Answer 12

True

Question 13

True or False: Humans and their effects on the environment have greatly accelerated these processes for some species.

Answer 13

True

Question 14

What are the 5 spatial scales in the hierarchical framework for processes influencing biodiversity?

Answer 14

LoLaRCG

Local
Landscape
Region
Continent 
Global

Question 15

What are the 3 examples of important factors for local?

Answer 15

Microenvironment, biotic interactions, disturbance

Question 16

What are the 4 examples of important factors for landscape?

Answer 16

Soil type, topography, elevation, metapopulation dynamics, disturbance

Question 17

What are the 4 examples of important factors for region?

Answer 17

Climatic gradients, recent glacial history, migration

Question 18

What are the 4 examples of important factors for continent?

Answer 18

Climatic cycles, mountain building, speciation, extinction

Question 19

What are the 2 examples of important factors for global?

Answer 19

Plate tectonics, sea level changes

Question 20

At local scales, what 2 processes influence biodiversity on a spatial scale?

Answer 20

Physical complexity of habitat and interactions among species

Question 21

At landscape scales, what 2 processes influence biodiversity on a spatial scale?

Answer 21

Migration among communities and extinction within communities

Question 22

At global scales, what 2 processes influence biodiversity on a spatial scale?

Answer 22

Migration and extinction in response to climate change

Question 23

If you increase productivity then…

Answer 23

more energy is available for growth and reproduction and therefore more individuals can live in the same area

Question 24

______ hypothesis is tropics are more species rich because the total tropical land area is greater than total temperate land area.

Answer 24

Area

Question 25

Available ______ affects species richness, and most consistently showing the relationship

Answer 25

Energy/productivity

Question 26

Area hypothesis contains both an ______ component and ______ component.

Answer 26

Ecological and evolutionary

Question 27

______ component is as area increases, spatial heterogeneity also increases

Answer 27

Ecological

Question 28

______ component is over evolutionary time, a larger area affords greater opportunity for geographic isolation and therefore, greater rates of allopatric speciation.

Answer 28

Evolutionary

Question 29

What is differences in opportunity for growth?

Answer 29

conditions are so unfavorable that a few species are physiologically capable of persisting there

Question 30

What is age of the communities?

Answer 30

Increase in species richness toward the Equator, tropics are older than poles

Question 31

If communities in the tropics have remained intact for a longer time then,

Answer 31

the organisms in those communities should have had more opportunity to diversify into many species.

Question 32

True or False: Differences in species richness are largely a result of continental-scale geographic relationships

Answer 32

True

Question 33

Why could asia have more plant species then europe and US?

Answer 33

China is directly connected to tropical and subtropical regions