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gizmo_the_mogwai [7]
3 years ago
14

Q2.25. Assume that early in the summer, the only prey available are stoneflies and caddisflies. If the search time for its prefe

rred prey (the more profitable stonefly) is too long, the house martin should include both stoneflies and caddisflies in its diet. What is the value of this critical search time for stoneflies
Biology
1 answer:
steposvetlana [31]3 years ago
3 0

Answer:

The search time is inversely proportional to prey density

Explanation:

Optimal foraging theory is a model used to predict animal behavior during the search of food, which is a critical process that requires the consumption of energy and time. In order to increase its fitness value, animals acquire foraging skills that help to obtain higher energy rates for the lowest cost. Thus, the optimal foraging model enables the prediction of the optimal strategy that allows to maximize the gain of energy during a particular time interval. The critical search time indicates the time that a consumer needs to add additional prey to its menu. In this model, a consumer will be converted to a 'generalist' and will add a second prey to its menu when the search time for the preferred prey is higher to the energy-time coefficient to obtain such prey.

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. What is the relationship between quantity demanded and quantity supplied at equilibrium? What is the relationship when there i
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  • At equilibrium, the quantity of a commodity demanded is the same as the quantity of that commodity supplied. i.e. QD = QS. The price at which QD = QS is the equilibrium price.
  • When there is a shortage, the quantity of goods demanded would be greater than quantity supplied, as the price falls below the equilibrium price. i.e. QD>QS
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For example, in the table showing the demand and supply schedule for T shirt at different prices (see file attached), the equilibrium price for a unit of T shirt is $3, at equilibrium, QD = QS (i.e. 30 = 30).

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