1.4 Into to biodiversity and biogeography Flashcards

1
Q

population diversity

A

how diverse a population is (diff traits of diff organisms in the same population)

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2
Q

population resilience

A

how much diff organisms survive in a population compared to the other ones

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3
Q

scavenger

A

organisms that eats flesh and bones of dead animals

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4
Q

ecosystem service

A

a way that humans benefit from ecosystems

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5
Q

types of ecosystem services

A

provisional
regulating
supporting
cultural

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6
Q

provisional ecosystem services

A

resources that are provided by nature that we can use or eat

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7
Q

examples of provisional ecosystem services

A

fruits, veggies, fish, water, oils, timber, meds, energy sources

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8
Q

regulating ecosystem services

A

processes that keep ecosystems healthy and functional

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9
Q

examples of regulating ecosystem services

A
  • waste being decomposed by organisms
  • birds/bees pollinating plants
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10
Q

supporting ecosystem services

A

underlying natural processes that are the foundation of ecosystems

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11
Q

examples of supporting ecosystem services

A

photosynthesis, nutrient cycles

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12
Q

cultural ecosystem services

A

provide meaning to humans in art and music and stupid shi like that

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13
Q

examples of cultural ecosystem services

A

songs, poems, books, religious stuff

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14
Q

if there is a loss in biodiversity ecosystems become ___ (more/less) healthy

A

less

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15
Q

why is a loss of biodiversity bad

A

because it can make ecosystems less healthy and we humans get less services

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16
Q

biodiversity

A

An ecosystem’s biodiversity includes genetic, species, and habitat diversity

17
Q

biodiversity is mostly based on what and why is that

A

because species are the basic units of biological classification, biodiversity is most commonly associated with species diversity

18
Q

how is species diversity measured

A

by measuring species richness and evenness

19
Q

biogeography

A

the process by which organisms come to live where they live

20
Q

species richness

A

the number of diff species in an area

21
Q

species evenness

A

number of organisms per species in relation to total # of organisms in all species

22
Q

if there are a lot of diff species in an area is there more or less species richness

23
Q

if a species has a lot of diff species does tit have more or less species evenness

A

more; less if there is only a few species or even one species

24
Q

relationship between species diversity, species richness, and species evenness

A

all of them are directly proportional

25
ecosystem resilience
the ability of an ecosystem to absorb change and return to the same equilibrium state after a disturbance
26
an eocysystem with higher species diveristy is ____ (more/ess) resilient
more
27
why is an ecosystem with a higher species diveristy more resilient
bc of one species is killed by a disturbance there can be another type of species that is actually more fit for the new environment so the community doesn't die
28
ecological niche
the role of a species in its environment
29
types of niches
specialist Species or generalist species
30
specialist Species have _____ (broad/narrow) niches
narrow
31
generalist Species have _____ (broad/narrow) niches
broad
32
specialist Species
species that have super niche needs like they can only live in a certain place and have a certain type of food to survive
33
what has a bigger threat to being endangered specialist or generalist species
specialist
34
generalist species
species that can live in a wide type of habitat, eat variety of diff foods, tolerate alo tof environmental conditions
35
what adapts faster generalist or specialist Species
generalist
36
how did Pangaea affect species diversity
it split up some of the same species to different areas so that they had to evolve to fit diff environments
37
Which of the following best describes how urban development can affect biodiversity in an ecosystem?
Biodiversity is highest at low levels of urban development.