Why does biodiversity decrease at the poles?
This idea is also referred to as the latitudinal diversity gradient, meaning that as you move from the equator towards the poles, diversity lessens. … That the are is relatively stable in terms of environment when compared to polar regions has also been suggested as a reason for increased biodiversity at the equator.
Why is biodiversity higher closer to 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.
Why does diversity among species decline as we move away from the equator?
species diversity decreases as we move from equator towards the poles because sunlight is less visible due to slanting rays of the sun but at equator posses straight rays of sunlight due to which vegetation of tropical region is much high than the polar regions.
What is the main cause of loss of biodiversity?
Biodiversity, or the variety of all living things on our planet, has been declining at an alarming rate in recent years, mainly due to human activities, such as land use changes, pollution and climate change.
How does biodiversity vary as we go from the equator to poles?
The Bio-diversity varies form Equator and poles.
The species density decreases as we go from equator to poles. This is due to sunshine, vertical habitat, temperature etc that is varied across the regions due to differential sun rays. Rain forest that is rich in bio diversity is near the equator.
Why does biodiversity increase towards the tropics?
The higher temperatures in the tropics cause higher rates of metabolism, ecological dynamics and coevolutionary processes, which generate and maintain higher biodiversity.
How does biodiversity affect the stability of an ecosystem?
Greater biodiversity in ecosystems, species, and individuals leads to greater stability. For example, species with high genetic diversity and many populations that are adapted to a wide variety of conditions are more likely to be able to weather disturbances, disease, and climate change.
Why does biodiversity tend to be higher in areas closest to the equator or tropical areas quizlet?
Why are areas near the equator have more species richness? Greater amounts of solar energy, heat, and humidity at tropical latitudes lead to more plant growth, making areas nearer the equator more productive and able to support larger numbers of animals.
Does biodiversity decrease towards the pole?
As a rule, biodiversity decreases as you travel from the equator towards the poles. Biodiversity refers to species richness and the general health of an ecosystem or biome. Typically, equatorial regions have warmer climates and direct insolation.
How can biodiversity be affected?
The main threats facing biodiversity globally are: destruction, degradation and fragmentation of habitats. reduction of individual survival and reproductive rates through exploitation, pollution and introduction of alien species.
What is the effect of species diversity as one moves from high to low altitude?
Biodiversity changes with the changes in altitude. It increases as one moves from higher to lower altitudes. Decrease in temperature and greater seasonal variability are the two major factors responsible for lower diversity at higher altitudes.