Do polar regions have high biodiversity?
Rich in Wildlife
Polar landscapes are home to a rich diversity of wildlife, both on land and within the seas. Polar animals have evolved to survive life in the deep cold.
Why is the Arctic so biodiverse?
Physical characteristics of the Arctic important for structuring biodiversity include extreme seasonality, short growing seasons with low temperatures, presence of permafrost causing ponding of surface water, and annual to multi-annual sea-ice cover.
How much biodiversity is in the Arctic ocean?
The currently known Arctic species richness estimate includes close to 2,000 phytoplankton taxa, over 1,000 ice-associated protists, greater than 50 ice-associated metazoans, ~ 350 multicellular zooplankton species, over 4,500 benthic protozoans and invertebrates, at least 160 macro-algae, 243 fishes, 64 seabirds, and …
Why is the polar ecosystem important?
Arctic marine ecosystems are important constituents of global biodiversity. … The marine Arctic also provides habitat for large populations of marine mammals and birds (see Reid et al., Chapter 3 and Ganter & Gaston, Chapter 4), some of which form colonies that are among the largest seabird colonies on the planet.
What are the examples of high biodiversity explain why you classify them as high biodiversity?
Example of ecosystem with high biodiversity is tropical rain forest as seen in Amazon basin of south America. Such forests are also thriving in parts of central Africa and also in islands of Indonesia. In marine environment, coral reefs are example of high biodiversity aquatic ecosystems.
What is high biodiversity?
High biodiversity is a habitat or ecosystem that has a high number of different species.
Which ecosystem has high biodiversity low biodiversity?
Estuarine areas (where rivers meet seas and oceans) have high biodiversity compared to other areas. Trophical rainforests are rich in terms of biodiversity. Arid and semiarid areas have low biodiversity. Deserts, for example, contain limited numbers of species.
How do polar bears affect biodiversity?
As one of the largest land carnivores in the world along with grizzly bears, polar bears are known as a keystone species, the apex of the ecosystem. They keep biological populations in balance, a critical component to a functioning ecosystem. 2. They’re also a sign of health for the ecosystem.
Does the ocean have a high biodiversity?
In its simplest form, biodiversity or biological diversity is therefore ‘Life on Earth’ and includes marine biodiversity ‘Life in the Seas and Oceans. ` The marine environment has a very high biodiversity because 32 out of the 33 described animal phyla are represented in there.
Why is deep sea diversity so high?
He suggested that because the deep sea is monotonous and predictable (i.e., it is stable), populations have the evolutionary time to become newly specialized in how they feed. Over time, these populations become so specialized they evolve into totally new species, eventually driving diversity up.
Why is biodiversity so important in our oceans?
Healthy marine ecosystems are important for society since they provide services including food security, feed for livestock , raw materials for medicines, building materials from coral rock and sand, and natural defenses against hazards such as coastal erosion and inundation. …
Do polar seas have high or low biodiversity?
Species diversity is enhanced in the Polar seas by a system of warm water upwellings that create breaks in the ice. The corresponding open areas support numerous invertebrates, fish, sea birds, and marine mammals – the result of a broad based food chain.
Where are polar ecosystems found?
Polar environments are in the Arctic and Antarctic regions. Arctic regions are in the Northern Hemisphere, and it contains land and the islands that surrounds it. Antarctica is in the Southern Hemisphere and it also contains the land mass, surrounding islands and the ocean.
What is the most important aspect of its biodiversity Arctic ocean?
It is the most extreme ocean in regard to the seasonality of light and its year-round existing ice cover. Arctic seas hold a multitude of unique life forms highly adapted in their life history, ecology and physiology to the extreme and seasonal conditions of this environment.