Advertisements
Advertisements
प्रश्न
What is the significance of the slope of regression in a species-area relationship?
Advertisements
उत्तर
The slope of regression measures the rate at which species richness increases as the explored area expands. Its significance is explained below:
- For Small/Limited Areas: For a limited region like a country, the value of the slope remains constant and ranges from 0.1 to 0.2, regardless of the taxonomic group or the geographic region.
- For Large Areas: When measuring the species-area relationship over vast areas, such as entire continents, the regression slope becomes much steeper, typically ranging from 0.6 to 1.2. This indicates that larger areas support a much higher rate of species accumulation.
APPEARS IN
संबंधित प्रश्न
Observe the graph and select the correct option:

The 'rivet' in the rivet popper hypothesis is considered to represent the ______.
Which of the following hypothesis states: Rich species diversity leads to lesser variation in biomass production over a period of time.
Latitudinal and altitudinal gradient is shown by which of the following habitat(s)?
On a log scale the relationship of species richness and area becomes linear (straight line) and is given by the equation.
Maximum species richness is observed in the ______.
With reference to graph select the correct alternative
All are true regarding graph showing species richness - area relationship, EXCEPT ______.
Oxygen dissociation curve for Myoglobin has the following shape:
Amongst the animal group given below, which one has the highest percentage of endangered species?
Which of the below mentioned regions exhibit lees seasonal variations?
Which of these is true about tropical environments?
The pattern of biodiversity is affected by ______.
"Species richness increased with increased explored area but only a limit". This statement was given by.
Which of the following countries has the highest biodiversity?
Which one of the following is not a major characteristic feature of biodiversity hot spots?
Amongst the animal groups given below, which one appears to be more vulnerable to extinction?
What does the term ‘Frugivorous’ mean?
There is greater biodiversity in tropical /subtropical regions than in temperate region. Explain.
Species diversity decreases as we move away from the equator towards the poles. What could be the possible reasons?
The species-area relationship is represented on a log scale as ______.
For frugivorous (fruit-eating) birds and mammals in the tropical forests of different continents, the slope of the species-area relationship is found to be approximately ______.
The relation between species richness and area for a wide variety of taxa appears as ______.
Which of the following hypothesis suggests that ecosystems are like aeroplanes where flight safety (ecosystem functioning) may or may not be compromised, depending upon which species are being lost?
Rivet Popper Hypothesis is an analogy to explain the significance of ______.
Tropical regions show greatest level of species richness because -
- Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification.
- Tropical environments are more seasonal.
- More solar energy is available in tropics.
- Constant environments promote niche specialization.
- Tropical environments are constant and predictable.
Choose the correct answer form the options given below:
Which of the following characteristics are seen in a stable community?
- It is strong enough to withstand environmental disturbance and recovers quickly.
- It is resistant to invasive species.
- It exhibits constant change in biomass production over a period of time.
- It has more species diversity.
