ecosytem for dumbies like me Flashcards

1
Q

population

A

all member of the same species in the same habitat

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2
Q

ecosystem

A

a dynamic system made form a community and aboitic factors that interact

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3
Q

habitat

A

where a species lives characterised by the environment and other species

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4
Q

community

A

all species living in a habitat and they all interact

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5
Q

niche

A

the role of an organism in a habitat and how it fits in

no two species live in the same niche

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6
Q

carrying capacity

A

the maximum population of an ecosystem

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7
Q

types of sampling for slow organism

A

transect and quadrats

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8
Q

quadrats

A
use two taps and put them 90 degrees to each other 
use a grid and split into equal squares 10x10
use numbers/ coordinates 
use random generator '
calculate cover 
repeat 
get mean 
calculate total meanx number of quadrats
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9
Q

transect

A
at 90 degrees to shoreline 
place quadrat every 2 m 
count cover 
repeat 30x at different right angles at the beach 
find mean
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10
Q

local accuracy

A

quick

poor accuracy
large organism

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11
Q

% cover

A

how many full squares ‘‘accurate
time-consuming
subjective to what is a full square

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12
Q

secondary succession

A

succession has been interrupted

only soil

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13
Q

large sample

A

reliable
can do stats test
remove

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14
Q

mark capture release

A

capture sample collect and mark and release

does not harm

give time for it to distribute back into habitat randomly

collect

equation

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15
Q

how to calculate productivity

A

energy/ mass

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16
Q

why does productivity decreases

A

less light

less photosynthesis