Which of the following ecosystem is most unstable?
Oceans is stable ecosystems since it stays unchanged over the long term. Various natural geological and anthropogenic forces build and damage mountains, deserts and forests but oceans have remained stable over the long history of the Earth.
What is an unstable ecosystem?
In particular, the term unstable should be restricted to describe an ecosystem which does not represent a certain climax situation. Vulnerable seems to be the right term to characterise those ecosystems which are at greater risk than others of being negatively affected by external impact.
Which ecosystem is most under threat?
Top 10 most threatened ecosystems
- Caribbean coral reefs.
- Alaskan kelp forest.
- Murray-Darling basin wetlands.
- Sydney coastal wetlands.
- South karst springs.
- Coorong lagoon and Murray River estuary.
- Mountain ‘fynbos’ on Cape Town.
- Rhineland raised bogs.
What is an ecosystem that is in danger?
1. The coral reefs of the Caribbean are thought to be under threat. Current findings released by the International Union for Conservation of Nature (IUCN) have concluded that the coral reefs of the Caribbean might be in serious danger.
Which of the two ecosystem has more stable biodiversity?
Two of the Most Diverse Ecosystems on Earth
Species richness is greatest in tropical ecosystems. Tropical rain forests on land and coral reefs in marine systems are among the most biologically diverse ecosystems on Earth and have become the focus of popular attention.
Why are complex ecosystems more stable?
The reason greater stability is found in complex ecosystems is that with more complex interactions, the ability of organisms to deal with disturbances increases. … A food web depicts various ways in which organisms eat other organisms and obtain energy for their survival.
What keeps ecosystem stable?
The two key components of ecosystem stability are resilience and resistance. Resistance is an ecosystem’s ability to remain stable when confronted with a disturbance.
What is ecosystem resilience?
ecological resilience, also called ecological robustness, the ability of an ecosystem to maintain its normal patterns of nutrient cycling and biomass production after being subjected to damage caused by an ecological disturbance.
What is the rarest ecosystem?
Today, the most fertile and well-watered region, the tallgrass prairie, has been reduced to but 1% of its original area. This makes it one of the rarest and most endangered ecosystems in the world.
Which ecosystem is most threatened by global warming?
Mountain and arctic ecosystems and species are particularly sensitive to climate change. Projected warming could greatly increase the rate of species extinctions, especially in sensitive regions.
What does ecological collapse look like?
Ecologists use the term “collapse” to describe a process resembling a failed soufflé or a burst football. When ecosystems collapse, they rapidly lose their structure and function, with dramatic changes to their size or extent, or the species that comprise them.