What factors are important to driving diversity gradients in biodiversity?

Ecological explanations for these gradients in biodiversity focus on the effects of environmental variables, including productivity, temperature, precipitation and ecological disturbance regimes (the pattern of perturbations in environmental conditions), on species coexistence, whereas evolutionary processes are …

What factors contribute to species diversity?

Several factors contribute to species diversity, including habitat diversity, competition among species, and genetic diversity. Genetic diversity within a species not only is necessary to maintain diversity among species,6 but also contributes to the diversity of food, fiber, and medicines available from nature.

What are the gradients of biodiversity?

biodiversity gradient The gradual reduction in biomass and species numbers that occurs with increasing latitude. There are several theories to explain why life is more abundant in the tropics than in cooler regions.

What drives diversity in an ecosystem?

Broadly speaking, the diversity of an ecosystem is dependent on the physical characteristics of the environment, the diversity of species present, and the interactions that the species have with each other and with the environment. … Also, the energy flux in the environment can significantly affect the ecosystem.

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Why do species diversity gradients occur?

Similarly to the climate harshness hypothesis, climate stability is suggested to be the reason for the latitudinal diversity gradient. … Additionally, many habitats with high species diversity do experience seasonal climates, including many tropical regions that have highly seasonal rainfall (Brown and Lomolino 1998).

What are the 4 factors that affect biodiversity?

Important direct drivers affecting biodiversity are habitat change, climate change, invasive species, overexploitation, and pollution (CF4, C3, C4. 3, S7).

What 3 factors affect the biodiversity of an ecosystem?

What Factors Influence the Biodiversity of an Ecosystem?

  • Overexploitation. Overexploitation means harvesting species more rapidly than populations can replenish themselves or to do so at unsustainable levels. …
  • Habitat Loss. …
  • Invasive Species. …
  • Climate Change.

What are latitudinal gradients of biodiversity class 12?

Latitudinal Gradients Describing Biodiversity Pattern in Species

  • Latitude: It is a determinant of the angular distance of a place with respect to the equator, which ranges from 0° at the Equator to 90° (North or South) at the poles.
  • Gradient: “direction and rate of fastest increase”.

How does elevation affect species diversity?

Elevational diversity gradient (EDG) is an ecological pattern where biodiversity changes with elevation. The EDG states that species richness tends to increase as elevation increases, up to a certain point, creating a “diversity bulge” at middle elevations.

What do you mean by latitudinal gradients what could be the possible reasons for diversity between tropic and temperate region?

What could be the possible reasons for diversity between tropic & temperate region? Ans. Latitudinal gradient in diversity means that species diversity usually decreases as we move away fromequator towards the poles, Tropic area of latitudinal range 23.50c harbor more species than temperate orpolar area.

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Why is ecosystem diversity important to biodiversity?

Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. … A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.

How does ecosystem diversity affect biodiversity?

Increasing species diversity can influence ecosystem functions — such as productivity — by increasing the likelihood that species will use complementary resources and can also increase the likelihood that a particularly productive or efficient species is present in the community.

What is importance biodiversity?

Biodiversity is important to humans for many reasons. … Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services.

Why is the species area effect important?

Throughout the long history of biogeography, the species–area relationship has served as an important tool for understanding the geography of nature and, as such, it is likely to play an equally important role in designing effective strategies for conserving biological diversity.

What is the relationship between species richness and latitudinal gradient?

Ultimately, the latitudinal gradient in species richness must be a consequence of a greater period of net diversification in the tropics, likely following the origins of life there, or higher speciation rates and/or lower extinction rates at low latitudes compared with other regions.

What are the two factors that determine the number of species on the island?

Terms in this set (29) The number of species found on an island is determined by a balance between two factors: the immigration rate (of species new to the island) from other inhabited areas and the extinction rate (of species established on the island).

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