BIOC54H3 Chapter 13: Chapter 13

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amaranthalpaca960

17 Oct 2011

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O competition of food: energetic and time cost of dominance interactions (social status) Social behaviours agnostic or submissive (most of the time) Benefits of group living protection against predators defending their young, cooperation is not required predicts that mobbing is intense when nesting is dense, so protection is increased. Improve predation ability: future offspring (direct fitness, through kin (indirect) Chapter 13: cost of group living, favoured when environmental constraint reduce likelihood if independent success. Altruism: habitat saturation, shortage of mates. If there is a single round always defect again or defect (pavlov: example of reciprocal altruism grooming in monkeys. Cooperate first, defect if partner defects (tit for tat: context 1: monkeys related and unrelated groom each other. Hypothesis: amongst related altruistic: unrelated: reciprocal altruism, predicts unrelated groomers must get other benefit, context 2: monkeys use vocal calls to solicid aid in aggressive alliances. Unrelated: monkey b get more attention from a when b has groomed a recently.

Related Questions

EXPLAIN YOUR ANSWERS!

Question 1

Which behavior is optimal for an organism using central place foraging?

Question options:

increased time spent searching for food at longer distances

decreased time feeding when the number of competitors increases

increased feeding as the number of predators decreases

feeding from a central supply of food or water

Question 2

Which environment favors the evolution of phenotypic plasticity?

Question options:

	the deep ocean
	a tidal zone
	a tropical rainforest
	a desert EXPLAIN YOUR ANSWERS!

skytiger137

What is likely to happen when there is an increase inthe population of a prey species?
1. Higher incidence of interactions between prey andpredators.
2. A subsequent increase in the predator population size.
3. More chances for the prey species members to be killed.
4. A and C.
5. None of the above
Which of the following is an example ofevolution?
1. The ability of human adults to digest lactose.
2. A tall giraffe that can eat plants that other members of itsspecies cannot reach.
3. A bacterium that survives antibiotic treatment.
4. All of the above are correct.
5. None of the above.

pinkox999

What is likely to happen when there is an increase inthe population of a prey species?
1. Higher incidence of interactions between prey andpredators.
2. A subsequent increase in the predator population size.
3. More chances for the prey species members to be killed.
4. A and C.
5. None of the above
Which of the following is an example ofevolution?
1. The ability of human adults to digest lactose.
2. A tall giraffe that can eat plants that other members of itsspecies cannot reach.
3. A bacterium that survives antibiotic treatment.
4. All of the above are correct.
5. None of the above.

orangezebra314

BIOC54H3 Chapter 13: Chapter 13

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