Ecosystem and distribution
What is a lentic ecosystem?
An ecosystem with still or stagnant water.
Name one plant found in lentic ecosystems.
Water lilies.
Name one abiotic factor.
Sunlight.
What starts the flow of energy in the food web?
Producers, such as algae and aquatic plants.
Name one human activity that threatens lentic ecosystems.
Pollution.
Name one example of a lentic ecosystem.
A lake, lagoon, or pond.
Name one animal found in lentic ecosystems.
Herons.
What are biotic factors?
The living elements of an ecosystem.
Name one consumer in the lentic food web.
Fish.
How can ecosystem degradation affect fishing-related livelihoods?
It can cause economic losses.
What happens to sediments in still water?
They settle at the bottom.
Name two examples of aquatic flora from the presentation.
Elodea and duckweed.
What do producers do?
They produce their own food through photosynthesis.
What do decomposers recycle?
Nutrients.
What social problem can result from the overexploitation of water resources?
Communities may have difficulty accessing freshwater.
Why can lentic ecosystems help organisms survive droughts longer than lotic ecosystems?
They take longer to dry out.
Name three animals shown in the presentation.
Otters, crayfish, and carp.
What do omnivores eat?
Both plants and animals.
Name one provisioning service provided by lentic ecosystems.
Freshwater supply.
What should governments establish to protect lentic ecosystems?
Environmental regulations and conservation programs.
Where are phytotelmata found, according to the presentation?
Everywhere except Antarctica.
Name three plants and three animals from the presentation.
Plants: elodea, water lilies, and bulrushes. Animals: herons, salamanders, and carp.
What is the role of decomposers in an ecosystem?
They break down dead tissues and waste into simpler substances that can be reused.
How do lentic ecosystems help control floods?
They retain water, slow runoff, and reduce peak water flows.
Name the three main protection proposals from the presentation.
Integrated management, education and capacity building, and community participation.