Is the Arctic biodiversity?
In all, the Arctic is home to more than 21,000 known species of highly cold-adapted mammals, birds, fish, invertebrates, plants and fungi and microbe species. This extensive biodiversity provides essential services and values to people.
Is biodiversity high or low in the Arctic?
In general, species richness is lower in the Arctic than in more southerly regions (Fig. 2.1). This is consistent with the general observation that biodiversity declines from the Equator to the poles (Rosenzweig 1995, Gaston & Blackburn 2000, Willig et al. 2003).
What is the genetic diversity in the Arctic?
high arctic populations had medium to high levels of genetic diversity (D genotype = 0.4-0.84, Table 2).
Is the ocean a biodiversity hotspot?
That’s one of the reasons why a team of scientists from 13 universities and institutions included the Sargasso Sea as one of 10 biodiversity hotspots in the high seas — areas of the ocean outside of national boundaries — that their research indicates should be considered for designation as marine protected areas.
How does the warming of the Arctic affect biodiversity?
Without enough sea ice, the entire Arctic ecosystem will unravel, and its species will die. The polar bear the Center has fought so hard to protect, which put global warming’s biodiversity effects on the map with its 2008 Endangered Species Act listing, is the Arctic’s most famous warming-threatened denizen.
What is the Arctic ecosystem?
The Arctic is a unique ecosystem with a complex food web made up of organisms adapted to its extreme conditions. It is one of the most biologically productive ecosystems in the world, supporting many large fisheries and huge populations of migratory birds that come to the Arctic in the summer to breed.
What are 3 types of biodiversity?
Usually three levels of biodiversity are discussed—genetic, species, and ecosystem diversity.
Why does tundra have the lowest biodiversity?
The arctic regions of the world have the least biodiversity because plants don’t survive in the extreme cold and ice that cover these regions year-round.
What is diversity and biodiversity?
The term biodiversity (from “biological diversity”) refers to the variety of life on Earth at all its levels, from genes to ecosystems, and can encompass the evolutionary, ecological, and cultural processes that sustain life.
How diverse is the Arctic tundra?
The biodiversity of the tundras is low: 1,700 species of flora and only 48 land mammals can be found, although thousands of insects and birds migrate there each year for the marshes. There are few species with large populations.
What is ecosystem diversity?
Ecosystem Diversity can be defined as the variety of different habitats, communities and ecological processes. A biological community is defined by the species that occupy a particular area and the interactions between those species.
Why do you think the most biodiversity is found near the equator?
There might be more biodiversity near the equator because it’s warmer year round, allowing organisms to continue growing. Locations away from the equator will have cold winters that will slow growth for microorganisms, plants and animals.
Which is not a biodiversity hotspot?
Indo-burma — it includes north eastern india. Assam and Andaman islands are exceptions. Sundalands— it includes nicobar islands.
What is an example of a biodiversity hotspot?
The Andes Mountains Tropical Hotspot is the world’s most diverse hotspot. About one-sixth of all plant species in the world live in this region. The New Zealand archipelago is another hotspot. Life on New Zealand evolved in isolation, so the islands contain many species not found anywhere else.
Which is not a biodiversity hotspot region?
So, the correct answer is ‘Lesser interspecific competition’.