Survival Food
What biotic and abiotic factors can affect the survival of a decorated crab in a food web?
plz help im doing an ecology assigment 4 skool. i’ve picked the decorated crab i have 2 make a class lesson and i need this question 4 it!!
AND
if u have any ideas 4 a class lesson plz state it. im grateful 4 all suggestions!!!!!1
thx
LauraB
biotic factors are anything caused by another living thing
abiotic factors are anything caused by the physical environment.
The main biotic factor is competition with other species, for example a foreign ‘invader’ species that is more successful than the decorated crab, or a species that lived there before but has suddenly become more successful due to a change in an abiotic factor like temperature. Competition could be direct or indirect. direct competition would involve the decorated crab being literally chucked out of where it lives by an invader, indirect would be the decorated crab’s Food Supply being used up by other species.
the main abiotic factors would be temperature, ‘exposure levels’ (like how much the crab gets damaged through big waves for example) and overall seasons – i.e. if there’s a particularly bad winter one year.
basically make a list of anything you could think of that might affect how the crab eats, lives and reproduces then separate them into biotic and abiotic and link them all together! since they’re a crab you’ll need to find out a bit about where they live because that will effect which factors you choose – i.e. land crab, shore crab, or marine crab?
Survival food stash and storage. Part 1
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How to Prevent and Survive Food-borne Diseases (Paperback) $51.59 Description not available. |