Matching questions
1-161 of 161
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Elements needed for life
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carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur
Biogeochemical: elements cycle through biotic, abiotic components of
ecosystem
Conservation Biology goal
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to protect and manage biological diversity
benefits: goods and services from species and ecosystem, aesthetic and
psychological benefits
biodiversity: variation @ many levels: species variation within species
-- morphology, allelic differences, number of individuals with genetic
variants
, -- within and among communities
Major elements from elements of life
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Hydrogen: most abundant
Oxygen: third most abundant (after He)
-- 49.2% of mass of Earth's crust
-- 89% of mass of oceans
O2 makes up 21% of atmosphere
-- all ultimately waste product of noncyclic electron flow in photosynthesis
-- water is source of electrons and protons
Periodic mass extinctions in geologic history
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geological periods end with large scale disappearance of species
Some are thought to be consequence of high CO2:
-- greenhouse effect warmed Earth --> stopped global conveyor belt -->
nutrients no longer distributed --> massive die-off in oceans -->
decomposition resulted in release of H2S (toxic to plants and animals)
Predation affects community structure
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, If predators are too efficient, not only is prey exterminated,
predators will also go extinct as well
Ecological community
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group of species that coexist and interact in defined area
-- each species has unique interactions with other species
-- study community on basis of energy, biomass
vary in size and scope
-- can be defined precisely or arbitrarily
-- number of species determined by available energy
How do life history strategies inform us
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population management
-- ex. Cod was extremely abundant --> efficient harvesting led to severe
population declines
-- ex. Striped bass was abundant --> overfished --> regulations preventing
fishing allowed population to recover
Diversity index
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, Quantify with H --> High H means high diversity
-- use random sampling and calculate from sum of
proportion of total individuals (all species) that are of each
species
Diversity varies with distance from equator
Example: Community B is less diverse than A because one
species in abundant with others being very rare
-- A's H = 1.39
-- B's H = 0.62
-- Alpha diversity
endotherm
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animal obtains heat primarily from internal sources (metabolism)
may or may not be successful at maintaining a constant temperature
paying for ecosystem services
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Can either pay the extra cash to have nitrate removal system in water
treatment plants to have drinking water OR conserve land in watershed to
have a source of clean water
How did continental drift affect species
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1-161 of 161
Click a definition to match it with a term
Elements needed for life
Give this one a try later!
carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur
Biogeochemical: elements cycle through biotic, abiotic components of
ecosystem
Conservation Biology goal
Give this one a try later!
to protect and manage biological diversity
benefits: goods and services from species and ecosystem, aesthetic and
psychological benefits
biodiversity: variation @ many levels: species variation within species
-- morphology, allelic differences, number of individuals with genetic
variants
, -- within and among communities
Major elements from elements of life
Give this one a try later!
Hydrogen: most abundant
Oxygen: third most abundant (after He)
-- 49.2% of mass of Earth's crust
-- 89% of mass of oceans
O2 makes up 21% of atmosphere
-- all ultimately waste product of noncyclic electron flow in photosynthesis
-- water is source of electrons and protons
Periodic mass extinctions in geologic history
Give this one a try later!
geological periods end with large scale disappearance of species
Some are thought to be consequence of high CO2:
-- greenhouse effect warmed Earth --> stopped global conveyor belt -->
nutrients no longer distributed --> massive die-off in oceans -->
decomposition resulted in release of H2S (toxic to plants and animals)
Predation affects community structure
Give this one a try later!
, If predators are too efficient, not only is prey exterminated,
predators will also go extinct as well
Ecological community
Give this one a try later!
group of species that coexist and interact in defined area
-- each species has unique interactions with other species
-- study community on basis of energy, biomass
vary in size and scope
-- can be defined precisely or arbitrarily
-- number of species determined by available energy
How do life history strategies inform us
Give this one a try later!
population management
-- ex. Cod was extremely abundant --> efficient harvesting led to severe
population declines
-- ex. Striped bass was abundant --> overfished --> regulations preventing
fishing allowed population to recover
Diversity index
Give this one a try later!
, Quantify with H --> High H means high diversity
-- use random sampling and calculate from sum of
proportion of total individuals (all species) that are of each
species
Diversity varies with distance from equator
Example: Community B is less diverse than A because one
species in abundant with others being very rare
-- A's H = 1.39
-- B's H = 0.62
-- Alpha diversity
endotherm
Give this one a try later!
animal obtains heat primarily from internal sources (metabolism)
may or may not be successful at maintaining a constant temperature
paying for ecosystem services
Give this one a try later!
Can either pay the extra cash to have nitrate removal system in water
treatment plants to have drinking water OR conserve land in watershed to
have a source of clean water
How did continental drift affect species
Give this one a try later!
