Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Rocky shore AS91158
| Question | Answer |
|---|---|
| Zonation | A distribution pattern where organisms form distinct horizontal bands due to environmental gradients (e.g., increasing exposure time to air). |
| Distribution | Where a species is found within a habitat. |
| Abundance | The number of individuals of a species in a given area. |
| Environmental factor | Any abiotic or biotic factor that influences where organisms live. |
| Abiotic factor | A non-living environmental factor (e.g., tidal movement, temperature, salinity, substrate). |
| Biotic factor | A living factor that affects organisms (e.g., competition, predation, herbivory). |
| Structural adaptation | A physical feature that improves survival (e.g., shells, siphons, muscular foot). |
| Physiological adaptation | An internal process that improves survival (e.g., tolerance to drying or salinity changes). |
| Behavioural adatation | An action or behaviour that improves survival (e.g., burrowing to avoid predators). |
| Tolerance range | The range of environmental conditions within which a species can survive. |
| Zone of physiological stress | The range where conditions are not optimal and survival/reproduction is reduced. |
| Niche | The role of a species in its ecosystem, including how it obtains food, survives/adaptations, and interacts with others. |
| Fundemental niche | The full potential range a species could occupy without competition or predation or other biotic limitations. |
| realised niche | The actual range a species occupies due to competition and other biotic factors. |
| Interspecific competition | Competition between different species for the same limited resources. |
| Predation | One NAMED organism (predator) feeding on another (prey). |
| Herbivory | Interspecific interaction in which one animal (the herbivore e.g., snail) feeds on producers (such as seaweed) |
| Gause’s Competitive Exclusion Principle | Two species with identical niches cannot coexist long-term; one will outcompete the other. |
| niche overlap | Niche overlap occurs when two or more species use some of the same limited resources or occupy similar ecological roles within an ecosystem, resulting in competition. |
| Structural adaptation of snail for feeding at the rocky shore | radula, rasping tongue that allows snails to scrap algae and biofilm from the rocks. |
| Biofilm | contains microbes that secrete a sticky layer acts as a conditioning layer, increasing the likelihood that larvae and algal spores successfully attach and establish. Herbivore eat it. |
| How do herbivores such as snails, limpets and chiton, affect algal spores | can strongly influence algal spores through grazing pressure, which affects both settlement success and survival. |
| What role does mucilage have on algae success | acts like a biological glue, protection from desiccation and protection from physical stress. |
| What is the operculum of a snail and how is it an adaptive advantage | is a hard “trapdoor” that seals a snail inside its shell, reducing water loss and protecting it from environmental stress and predators. |
| Adaptive advantage | a characteristic of an organism that increases its chances of survival and reproduction in a particular environment compared with individuals that do not have that characteristic. |
| why desiccation is an issue | because organisms need water to maintain cell structure, carry out essential metabolic processes and to dissolve respiratory gases so they can diffuse. |
| Why are air bladders an adaptive advantage | because they provide buoyancy, lifting algae toward the light to increase photosynthesis, improve growth and reproductive success. |
Created by:
NZARoberts