Why are most biodiversity hotspots in the tropics?

Researchers argue that tropical species form faster in harsh species-poor areas but accumulate in climatically moderate areas to form hotspots of species diversity. … This phenomenon, known as the latitudinal gradient of species diversity, has helped define the tropics as home to most of the world’s biodiversity.

Why are there so many biodiversity hotspots in the tropics?

The higher temperatures in the tropics cause higher rates of metabolism, ecological dynamics and coevolutionary processes, which generate and maintain higher biodiversity.

Why are the tropic the most diverse areas?

There are more species in the tropics because tropical ecosystems have more niches. However, the number of niches in an ecosystem is determined by the number of species in that ecosystem.

Where are the biodiversity hotspots in the tropics?

Biological hot-spots include the Western Amazon (Colombia, Ecuador, Peru), Madagascar, North and eastern Borneo, Northeastern Australia, West Africa, and the Brazilian Atlantic forrest. All of these areas have high diversity and many are threatened by human activities.

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Why tropical rainforest has maximum biodiversity?

Both the plant and animal biodiversity produce a wide array of food as well as fabrics. Complete Answer: Option A: The maximum biodiversity is found in tropical rain forests as they are less seasonal, they are neither too hot nor too cold and are more predictable. Therefore, this is the correct option.

Why do warmer climates provide greater biodiversity?

Sample Response: Warm climates allow for a year-round growing season. Plants are more available as a food resource, which can support more organisms. … Warm climates allow for a year-round growing season. More availability of plants provides more food resources for a greater number of organisms.

Why species diversity is highest at the equator?

A new study led by Oxford Earth Sciences’ Associate Professor Erin Saupe suggests that higher species diversity in equatorial regions may be caused by higher rates of speciation (the formation of new and distinct species in the course of evolution), driven by changes in precipitation across space and through time.

Why are the tropics more diverse than temperate deciduous forests?

Why are the tropics more diverse than temperate deciduous forests? Ample sunlight, consistently warm temperatures and frequent, abundant precipitation — all plentiful in tropical rainforests — tend to produce highest biodiversity among ecosystems.

What is high biodiversity?

High biodiversity is a habitat or ecosystem that has a high number of different species.

Why tropical regions are richer in biodiversity than the temperate regions?

It is generally seen that there is more biodiversity in the tropical region than the temperate region because of a variety of factors: … The tropical forest has a stable ecosystem as well as a suitable climatic condition and favorable reproductive environment for animal and species to thrive.

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Why is biodiversity hotspots important?

Biodiversity underpins all life on Earth.

Without species, there would be no air to breathe, no food to eat, no water to drink. There would be no human society at all. And as the places on Earth where the most biodiversity is under the most threat, hotspots are critical to human survival.

What is the importance of biodiversity hotspots in conserving biodiversity?

These areas that are particularly important for biodiversity conservation are called biodiversity hotspots. Two things are crucial when determining that a place is a biodiversity hotspot: (i) the number of different species there; and (ii) whether species in that area are endangered or currently being destroyed.

What is biodiversity hotspot?

A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened by human habitation. … Overall, the current hotspots cover more than 15.7% of the land surface area, but have lost around 85% of their habitat.

Why do tropics have greater biological diversity class 12?

(1) Tropical latitudes receive more solar energy than temperate regions, which leads to high productivity and high species diversity. (2) Tropical regions have less seasonal variations and have a more or less constant environment. This promotes the niche specialization and thus, high species richness.

What is the biodiversity of tropical rainforest?

Tropical rainforests are the most biologically diverse terrestrial ecosystems in the world. The Amazon rainforest is the world’s largest tropical rainforest. It is home to around 40,000 plant species, nearly 1,300 bird species, 3,000 types of fish, 427 species of mammals, and 2.5 million different insects.

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Why is the biodiversity of a tropical rain forest very high quizlet?

Biodiversity is high because the warm and wet consistent climate in tropical rainforests is able to sustain life in all different forms. Soil nutrient is poor in tropical rain forests because the sunlight that is intended to reach the floor of the tropical forest is blocked by the tall and dense trees.