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A Local Ecosystem
Descripción
(A local ecosystem) Biology Mapa Mental sobre A Local Ecosystem, creado por michaele.wright el 02/09/2014.
Sin etiquetas
biology
a local ecosystem
Mapa Mental por
michaele.wright
, actualizado hace más de 1 año
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Creado por
michaele.wright
hace alrededor de 10 años
23
2
0
Resumen del Recurso
A Local Ecosystem
Factors of an ecosystem
Abiotic factors (living)
Biotic factors (non-living)
Distribution and Abundance
Transect studies
Line cutting through area wanting to be studied
Quadrats
Capture-re-capture
Roles and relationships
Predator + Prey
Predator eats prey
Parasite + host
Parasite feeds of host with limited harm
Commensalism
One organism benefits while the other is neither harmed or helped
Mutualism (symbiotic)
Both species benefit
Allelopathy
(plants and fungi) One directly inhibits growth + development by releasing toxins
Competition
2 different species competing for the same resources in the same way
Adaptions to the environment
Structural
changing body structure or characteristic to suit environment
Physiological
altering/changing the way the body works or functions to suit their environment
Behavioural
changing instinctive behaviour to thrive in certain environments
Human impacts
loss of habitat
logging and land clearing for housing and agriculture
pollution
human activities producing wastes: chemicals pesticides
Eutrophication
River Pollution from excessive amounts of fertillisers and sewage --> encourages algae growth - chokes out the rivers
Alien species
brought in by humans unbalancing population numbers, bringing in disease and chocking out the native flora and fauna, taking over
flow of energy and matter
Biomass pyramid
"Biomass" mass of organism living flesh.
How much energy is passed onto the next trophic level (consumer) Energy that is lost cannot be replaced
Food Web
Interconnected food chain showing feeding relationships in an ecosystem
Food chains
- Arrows point in the flow of energy producer --> 1st order consumer (herbivore)--> 2nd order consumer (carnivore)
Cycling of matter - flow of energy --> sun
- availability of water and oxygen - light intensity - temperature range - soil characteristics -exposure to wind
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