- 1 Do whelk and starfish compete for space on intertidal rocks?
- 2 What species compete for space on intertidal rocks?
- 3 Do algae and barnacles compete for space?
- 4 Which species eats chiton?
- 5 Which species eats acorn barnacles?
- 6 When Semibalanus is excluded from below the tidal zone?
- 7 What is not an essential characteristic of a keystone species?
- 8 Why do barnacles clump together?
- 9 How do barnacles compete?
- 10 Why increasing numbers of barnacles and mussels might pose a problem for limpets?
- 11 Is a gumboot chiton edible?
- 12 Is a chiton a consumer?
- 13 What does chiton mean?
Do whelk and starfish compete for space on intertidal rocks?
The answer is b. algae and musselsthe space on intertidal rocks is located between the high and the low tide lines. algae and mussels compete for space on intertidal rocks.
What species compete for space on intertidal rocks?
In the middle intertidal, barnacles, mussels and seaweeds all compete for space – a precious limited resource. Mussels are generally the dominant competitor on rocky shores and without the presence of predatory seastars would outcompete other taxa and occupy all available space.
Do algae and barnacles compete for space?
Primary producers in this zone include lichens and cyanobacteria. Herbivorous periwinkle species (Littorina sp.) and limpets graze on the various forms of algae that grow there. In the middle intertidal, barnacles, mussels and seaweeds all compete for space – a precious limited resource.
Which species eats chiton?
Animals which prey on chitons include humans, seagulls, sea stars, crabs, lobsters and fish.
Which species eats acorn barnacles?
Barnacle predators include snails that drill through the shell, usually at junction points, and starfish such as Ochre Sea Stars that can pull the plates apart and evert their stomach directly into the opening. Other sea stars also use this species as prey, and dog whelks can drill into the shells.
When Semibalanus is excluded from below the tidal zone?
When Semibalanus Is Excluded From Below The Tidal Zone: Many Chthamalus Individuals Grow Well In The Semibalanus Exclusion Area.
What is not an essential characteristic of a keystone species?
Direct integration through competition or predation with every other species in the community is not an essential characteristic of a keystone species.
Why do barnacles clump together?
Clumping can be caused by the abiotic environment surrounding an organism. Barnacles, for example, group together on rocks that are exposed for the least amount of time during the low tide. The clumping of mussels (shown right) has been found to be influenced by competition with other species.
How do barnacles compete?
Competition and preferential predation by gastropods restrict C. brunnea to the upper shore. At the lower shore levels, competition from oysters, mussels, and algae reduces the rock space available for barnacle settlement.
Why increasing numbers of barnacles and mussels might pose a problem for limpets?
Barnacles and limpets compete directly for space, so a decline in abundance of one can lead to an increase in abundance of the other. Because barnacles need to be near each other to reproduce, and living together can also reduce the risks of desiccation, it is beneficial to live near conspecifics.
Is a gumboot chiton edible?
Its flesh is edible and has been used as a food source by Native Americans, as well as by Russian settlers in Southeast Alaska. However, it generally is not considered palatable, having a texture described as extremely tough and rubbery.
Is a chiton a consumer?
Feeding: Chitons are primary consumers. They are herbivores, grazing on algae on rocks using a hardened tooth called a radula.
What does chiton mean?
1: any of a class (Polyplacophora) of elongated bilaterally symmetrical marine mollusks with a dorsal shell of calcareous plates. 2 [Greek chitōn]: the basic garment of ancient Greece worn usually knee-length by men and full-length by women.