Local eco system field trip Flashcards
What are the different abiotic factors?
water temp Air temp salt ph turbidity wind
How does water temp change?
Higher at height(smaller amount of water and more sun)
How does air temp change?
same
How does salt concentration change?
more at height, (water has evaporated in sun)
How does ph change?
more acidic, at high water mark minerals more concentrated, as more water evaportaes
How does turbidity change?
Same, could be more turbid at height
Where was ostral wing located on transect?
Higher places where water couldn’t reach. Therefore not as well anchored
Where were barnacles located on transect?
Lower levels, where water can easily cover shell
Where were neptune’s necklace and whelks found?
Lower levels (more water and food) but also at some high levels
Why were most species more abundant at lower levels?
More nutrients and food available.
What is an adaptation of the chiton?
Ability to extract metallic ions from sea for strong tongue to have strong hold and get algae easier
What are the structural adaptations of the limpet?
Assymetrical shape allows it to hang onto rocks more easily.
What are the behavioural adaptations of the limpet?
Pointed less steep side of shell to oncoming waves and steep side away to make eddy current to hold shell
Scrapes out home base and traps bubble of water to prevent drying out
What are the physiological adaptations of the limpet?
Excretes mucus trail to aid movement and make path to follow home. Tells them where they’ve eaten
Why do we estimate pop?
Helps us understand diversity of an org and observe changes and see if endangered.
