Any organisms in the poles must be able to withstand a cold, harsh climate. There are much less diverse food chains and webs that exist in these locations. Climate is a big factor in determining which biomes on the planet have greater biodiversity.
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.
Does biodiversity decreases towards the equator?
Species diversity is higher at the equator than at the poles. In biological terms, this is referred to as the latitudinal diversity gradient (LDG), in which the number of species increases from the poles to the Equator. This ranks among the broadest and most notable biodiversity patterns on Earth.
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.
Why is biodiversity higher 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.
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.
What is the most important reason for decrease in biodiversity?
The most important reason for the decrease in Biodiversity is habitat destruction. Habitat destruction is also called habitat loss and habitat reduction. Habitat destruction is a process by which a natural habitat becomes incapable of supporting its native species.
What is the effect on biodiversity when we move from pole to equator Mcq?
Explanation: The latitudinal gradient has the most well-known pattern in diversity having many groups of animals and plants. A decrease in diversity of species is observed while moving from the equator towards the poles.
Which of the following is incorrect about biodiversity hotspots?
“Which of the following statements regarding biodiversity hotspots are incorrect? Exotic species tend to cause a threat to biodiversity. They are not found in hotspots which are regions of high biodiversity. In India, 3 hotspots are found, i.e., Western Ghats and Sri Lanka, Indo-Burma (N-E India) and Himalayas.
What decreases when one moves away from the equator?
When we move ‘away from the equator’ and towards the poles there is a lesser impact of the sunlight and the temperature of the earth starts to decrease and it becomes colder. The temperature is at the minimum toward the poles because of lack of ‘direct sunlight’.
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.
Which of the following is not a major cause of biodiversity loss?
Keeping animals in zoological parks is not a cause for loss of biodiversity rather it is a method of conservation of biodiversity.