Functional response of predators means (1) the number of prey successfully attacked per predator as a function of prey density (2) Regulation of predator population by availability of prey (3) […]
Tag: CSIR NET Life Science PYQ and Solution Species Interactions
CSIR NET Life Science PYQ and Solution Species Interactions
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CSIR NET Life Science Previous Year Questions and Solution on Ecology
Criteria for Choosing Prey-Predator Relationships in Long-Term Biological Control
What should be the criteria for choosing prey-predator relationship for long term of biological control? (1) High host specificity and high virulence (2) low host specificity and high virulence (3) […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
What Determines Prey Profitability for Predators? The Role of Energy Content and Foraging Time
Profitability of prey for predator lies in its energy content and (1) Prey defense (2) Palatability (3) Foraging time (4) prey morphology Understanding Prey Profitability Prey profitability refers to the net […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
What Is the Main Function of Mycorrhiza? Understanding Its Role in Plant Growth
20. The main function of mycorrhiza is (1) Absorption of water (2) Absorption of phosphates (3) Protection from bacteria (4) Defense from insects The Core Function: Enhanced Nutrient Absorption The primary […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Lotka-Volterra Competition Model: Predicting the Outcome for Competing Species
For two species A and B in competition, the carrying capacities and competition coefficients are KA = 150 KB = 200 α = 1 β = 1.3 According to the […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Lotka-Volterra Competition Model: When Does One Species Always Win?
The Lotka-Volterra model of competition between species A and B is given by the equations Species A: dNA/dt = rANA (KA-NA-αNB/KA) Species B: dNB/dt = rBNB (KB-NB-βNA/KB) Given that species […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Understanding the Lotka-Volterra Competition Coefficient: What Does α₁₂ < 1 Mean?
15. In Lotka and Voltera’s two species competition model: Where N represents population size, r growth rate and K maximum carrying capacity for species 1 and (2) The inter-specific competition […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Lotka-Volterra Competition Model: The Key to Coexistence of Competing Species
According to the classical Lotka-Volterra competition model, which of the following conditions allow for co- existence of two competing species? (1) both species are equally capable of inhibiting each other […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Intraspecific vs. Interspecific Competition: Insights from Rodent Populations on Islands
Three islands have identical habitat characteristics. On first island rodent species A is present at a density 325/km2 Second island has only species B at a density of 179/km2 On […]
CSIR NET Life Science Previous Year Questions and Solution on Ecology
Matching Population Growth Patterns to Ecological Interactions: Mutualism, Commensalism, and Parasitism
Growth patterns of two species (grown alone or together) are shown in Figures A and B. Match the growth patterns with the correct type of interaction represented by them (1) […]
