1 / 15

Adaptations of animals on the rocky shore.

Adaptations of animals on the rocky shore. What could be affecting this environment???. Abiotic factors that influence distribution on the rocky shore. Salinity Temperature Moisture levels/ amount of time immersed by tide. Wind exposure Wave exposure Light intensity. Adaptations.

cooper-cruz
Download Presentation

Adaptations of animals on the rocky shore.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Adaptations of animals on the rocky shore.

  2. What could be affecting this environment???

  3. Abiotic factors that influence distribution on the rocky shore. • Salinity • Temperature • Moisture levels/ amount of time immersed by tide. • Wind exposure • Wave exposure • Light intensity

  4. Adaptations Adaptations are generally: Structural - eg. thick, impermeable shells to reduce water loss and radiation effects. Behavioural - eg. seeking small crevices for shelter to reduce the drying effects of the wind. Physiological - eg. an ability to lower metabolic rates during exposed periods to minimise oxygen consumption

  5. Biotic factors that influence distribution on the rocky shore. • Competition • Predation • Food availability

  6. Bladder Kelp • Need sunlight for photosynthesis. • Strong attachment to rocks • High demand for water • Thick, tough leaves to cope with strong waves. • Bladders for flotation

  7. NeptunesNeclace • Tough modified leaves. • Air filled bladders to enable flotation. • Strong attachments to rocks.

  8. Chitons • Very strong attachment to rocks- foot. • Attachment avoids being washed off rocks/ picked off- predation • Streamlined shape to prevent being washed off rocks

  9. Limpets • Very strong attachment to rocks- foot. • Attachment avoids being washed off rocks/ picked off- predation • Streamlined shape to prevent being washed off rocks • Hard shell- protection from predation

  10. Crabs • Mobile- escape preds/ search out food. • Modified leg into claw for protection and territorial displays. • Streamlined shape to limit chances of being washed off rocks. • Behavoiraladaptions- burrowing and living under rocks • These help to avoid desiccation.

  11. Hermit Crab • Mobile- escape preds/ search out food. • Modified leg into claw for protection and territorial displays. • Streamlined shape to limit chances of being washed off rocks. • Behavioural adaptations- burrowing and living under rocks • Shell provides protection/ camoflague

  12. Barnacles • Strong attachment to rocks- glue • Hard shell- protection from predators/ desiccation • Free swimming larvae- distributed to reduce competition • Ability to close up shell when tide is out to prevent dehydration.

  13. Whelk • Hard shell to avoid predation- eat barnacles. • Mobile foot that can be retracted to avoid desiccation. • Can close shell. • Food must hold to rocks to avoid being washed off • Sheltering behaviour

  14. Snail (includes periwinkle) • Hard shell • Strong foot • Ability to close up to avoid desiccation.

  15. Mussles • Strong attachment to rock- Bises hairs. • Ability to open and close shell to avoid desiccation/ feed/ avoid predation. • Free swimming larvae • Cant withstand high temperatures

More Related