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APES: A Global Concern > Chapter 11: Biodiversity Preserving Species > Flashcards

Chapter 11: Biodiversity Preserving Species Flashcards

1
Q

What is biodiversity?

A

The genetic, species and ecological

diversity of the organisms in a given area

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2
Q

What is genetic diversity?

A

A measure of the variety of different versions of the same genes within individual species

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3
Q

What is species diversity?

A

Number of different kinds of organisms within individual communities or ecosystems

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4
Q

What is ecological diversity?

A

The richness and complexity of a biological community (including number of niches, trophic levels, ecological processes that capture energy, sustain food webs, and recycle materials)

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5
Q

What is the basic definition of species?

A

Organisms capable of breeding with each other and producing fertile offspring

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6
Q

What is the Phylogenetic Species Concept (PSC)?

A

Evolutionary view-emphasizes branching relationships

regardless of successful breeding

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7
Q

What is the Evolutionary Species Concept (ESC)?

A

Conservation biology view- defines species in evolutionary and historical terms rather than reproduction

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8
Q

What is a genome?

A

The unique hereditary complement made of millions/billions of nucleotides in DNA arranged in a specific sequence that spells out the structure of all proteins making up the cells of every organism

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9
Q

How many currently known species are there?

A

About 1.6 million

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10
Q

How many species are estimated to have existed?

A

3 million to 50 million

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11
Q

What percentage of known species are invertebrates?

A

About 76%

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12
Q

Where is the greatest concentration of different species?

A

In the tropics; particularly in rain forests

and coral reefs

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13
Q

What are biodiversity hot spots?

A

Areas with at least 1,500 endemic species (species found nowhere else) and have lost at least 70 percent of their
habitats

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14
Q

How many biodiversity hot spots are believed to be in the world?

A

About 34

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15
Q

What percent of the world’s land is labeled as a hot spot?

A

About 1.4%, even though this percentage is small, it represents about 3/4 (75%) of the world’s most threatened species

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16
Q

Where do the hottest hot spots tend to be?

A

Tropical island areas; such as the Phillipines, Indonesia and
Madagascar; Map on 227

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17
Q

What kind of benefits does biodiversity bring us?

A

All of our food comes from other organisms
We derive useful drugs and medicines from organisms
Biodiversity provides ecological services
Biodiversity brings us aesthetic (looks) and cultural benefits

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18
Q

What is extinction?

A

The elimination of a species.

Even though we may not like it, extinction is a
normal process.

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19
Q

What is the historical rate of extinction?

A

1 species lost every decade

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20
Q

What is the rate of extinction now?

A

2-3 species lost every decade

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21
Q

What percent of all species that ever existed are now extinct?

A

99%

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22
Q

Who summarized the human threats to biodiversity with the acronym HIPPO?

A

E.O. Wilson

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23
Q

What does the acronym HIPPO mean?

A 
Habitat Destruction
Invasive Species
Pollution
Population of humans
Overharvesting
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24
Q

What is the Endangered Species Act (ESA)?

A

Legislation enacted to protect those species in danger of

becoming extinct. (“threatened” species are likely to become endangered)

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25
How many species are on the Endangered Species Act (ESA)?
Currently – about 1,264 on list
26
Vulnerable Species
Rare or at risk due to human impact
27
How much money a year protecting endangered species protection and recovery?
$150 million
28
What animal did the most successful recovery program involve?
Florida alligator
29
HCP
Habitat Conservation Plans; These are plans involving private property owners; 80% of all endangered species habitat is owned private land; This is a very controversial problem: Should land-owners be unable to use their own land because an endangered species lives on it??
30
Existence Value
The importance we place on just knowing that a particular species or a specific organism exists
31
Extinction
The irrevocable elimination of species; can be a normal process of the natural world as species out-compete or kill off others or as evironmental conditions change
32
When have mass extinctions happened before?
Ordovician period: 444 million years ago, 85% of population extinct Devonian period: 370 million years ago, 83% of population extinct Permian period: 250 million years ago, 95% of population extinct Triassic period: 210 million years ago, 80% of population extinct Cretaceous period: 65 million years ago, 76% of population extinct Quaternary period: Present, 33-66% of population extinct
33
Invasive Species
Organisms that thrive in new territory where they are free of predators, diseases, or resource limitations that may have controlled their population in their native habitat
34
Over the past 300 years, how many non-native species has the U.S. found?
Around 50,000 non-native species
35
How expensive is it for the U.S. to pay for the invasive species damage?
Around $138 billion dollars annually
36
What are some example of an invasive species?
Barred owls, Eurasian milfoils, Kudzu vines, Purple loosestrife, and Zebra mussels
37
About how many endemic species does New Zealand have?
Over 3,000
38
What percentage of flora and fauna has New Zealand lost since humans inhabited it 1,000 years ago?
Around 40%
39
What is one of the most notorious invasive species in New Zealand?
Australian brush-tailed possum (Trichosurus vulpecula)
40
What was one of the most successful invasive species eradication?
Kapiti Island, off the North Island of New Zealand Killed 22,500 brush-tailed possums (along with other animals) Island 10km by 2km
41
The U.S. Fish and Wildlife Service (U.S.F.W.S.) estimates about how many metric tons of lead are deposited into wetlands annually and between how many million water fowl die each year from lead poisoning?
3,000 metric tons of lead | 2-3 million water fowl die
42
Overharvesting
Harvesting so much of a resource that it threatens its existence
43
When did the last passenger pigeon die?
In 1914 in the Cinncinati Zoo
44
What percentage or fraction of all commercial oceanic species are overharvested?
Around 75% or 3/4
45
What fraction or percentage of all marine fish species are in a state of population collapse? When will all the species have fully collapsed (projected)?
About 1/3 or 33% | Around 2050
46
What U.N. meeting in Paris called or a ban on longline fishing?
Biodiversity Conference in 2005
47
Wildlife biologist estimate that how many tons of bushmeat are sold in African markets every year?
1 million tons
48
How did the SARS breakout happen?
In 2003, it resulted from the wild food trade in China and Southeast Asia where animals such as civets, monkeys, snakes, and turtles were eaten as luxury
49
What 2 countries and 1 city buy 3/4 (or 75%) of all cat and snake skins?
Japan, Taiwan, and Hong Kong
50
What 2 things does the U.S. import and what percentage?
99% of all cacti and 75% of all orchids sold
51
What are some important terms regarding species?
Keystone species: Have major effects on ecological functions and their elimination would affect many other members of the biological community Indicator species: Tied to specific biotic communities or successional stages or set of environmental conditions; Only found in certain conditions not others Umbrella species: Require large blocks of relatively undisturbed habitat to maintain viable populations; saving this habitat also benefits other species Flagship species: Especially interesting or attractive organisms to which people react emotionally; This species can motivate the public to preserve biodiversity and contribute to conservation
52
When did the ESA expire?
1992
53
What is the controversy over the ESA?
*Since then, (1992) Congress has been debating new proposals; to strengthen or weaken the act. *Many think the ESA is a governmental plot to take away land from private landowners. *Some people think the ESA gives plants and animals more rights than people! *Some environmentalists don’t like the idea of targeting “species” over “communities”
54
Gap Analysis
This studies unprotected landscapes that are rich in species. GIS(Geographical Information Systems) is the greatest asset in this study
55
CITES (1975)
(Convention on International Trade in Endangered Species) Important regulation regarding trade of ES
56
What percentage of animals die when caught directly from the wild?
80%
57
What is an example of a successful captive breeding?
``` California Condor (only 9 in 1986 in the wild) Zoo breeding programs reached 242 and 110 had been released to the wild by 2005 ```
58
What happened in the recent panda bear transfer?
Tian Tian and Yang Guang -- whose names in English are Sweetie and Sunshine -- arrived at Edinburgh airport 12/4/11 after flying in from Chengdu, Sichuan province, and were later greeted at Edinburgh zoo by around 450 people waving Chinese and Scottish flags
59
Why are pandas so hard to breed?
Females ovulate only once a year and can only become pregnant during a two- or three-day period
60
How many pandas are there world-wide (wild or captivity)?
There are about 2,000 | pandas world-wide
61
How many animals do pet traders import (illegally) in the U.S. each year?
2 million reptiles, 1 million amphibians and mammals, and 128 million tropical fish
62
What percent of all saltwater tropical aquarium fish come from coral reefs of the Philippines and Indonesia?
About 75%
63
What are three threats to wildlife?
Bush meat market where more than 1 million tons of wild animals are sold each year for human consumption Wild birds are endangered by pet trade Cyanide fishing that not only kills fish but the entire reef community
64
Endangered Species
A species considered to be in imminent danger of extinction
65
Threatened Species
While still abundant in parts of its territorial range, this species has declined significantly in total numbers and may be on the verge of extinction in certain regions or localities.
66
What is the fine for violating the ESA?
Up to $50,000
67
When did the Supreme Court rule that all land must be protected if it is a critical habitat?
1995
68
Critical Habitat
Habitat essential for a species' survival
69
In the U.S. what percentage of all known species does invertebrate take up?
75%
70
What percentage of the U.S. invertebrate are worth protecting?
9%
71
How many species have gone extinct since being nominated for protection?
18 species
72
How many species did each president list as endangered or threatened and how many years were they in office? (George W. Bush, George H.W. Bush, Bill Clinton)
George W. Bush: 59 species listed; 8 years in office George H.W. Bush: 228 species; 4 years in office Bill Clinton: 527 species; 8 years in office
73
What is the total cost of recovery plans for all currently listed species?
Around $5 billion

APES: A Global Concern (45 decks)

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